radare2/libr/core/agraph.c
2021-01-05 01:22:43 +01:00

5009 lines
126 KiB
C

/* Copyright radare2 - 2014-2020 - pancake, ret2libc */
#include <r_core.h>
#include <r_cons.h>
#include <r_util/r_graph_drawable.h>
#include <ctype.h>
#include <limits.h>
static int mousemode = 0;
static int disMode = 0;
static int discroll = 0;
static bool graphCursor = false;
static const char *mousemodes[] = {
"canvas-y",
"canvas-x",
"node-y",
"node-x",
NULL
};
#define GRAPH_MERGE_FEATURE 0
#define BORDER 3
#define BORDER_WIDTH 4
#define BORDER_HEIGHT 3
#define MARGIN_TEXT_X 2
#define MARGIN_TEXT_Y 2
#define HORIZONTAL_NODE_SPACING 4
#define VERTICAL_NODE_SPACING 2
#define MIN_NODE_WIDTH 22
#define MIN_NODE_HEIGHT BORDER_HEIGHT
#define TITLE_LEN 128
#define DEFAULT_SPEED 1
#define PAGEKEY_SPEED (h / 2)
/* 15 */
#define MINIGRAPH_NODE_TEXT_CUR "<@@@@@@>"
#define MINIGRAPH_NODE_MIN_WIDTH 12
#define MINIGRAPH_NODE_TITLE_LEN 4
#define MINIGRAPH_NODE_CENTER_X 3
#define MININODE_MIN_WIDTH 16
#define ZOOM_STEP 10
#define ZOOM_DEFAULT 100
#define BODY_OFFSETS 0x1
#define BODY_SUMMARY 0x2
#define BODY_COMMENTS 0x4
#define NORMALIZE_MOV(x) ((x) < 0 ? -1 : ((x) > 0 ? 1 : 0))
#define hash_set(sdb, k, v) (sdb_num_set (sdb, sdb_fmt ("%"PFMT64u, (ut64) (size_t) (k)), (ut64) (size_t) (v), 0))
#define hash_get(sdb, k) (sdb_num_get (sdb, sdb_fmt ("%"PFMT64u, (ut64) (size_t) (k)), NULL))
#define hash_get_rnode(sdb, k) ((RGraphNode *) (size_t) hash_get (sdb, k))
#define hash_get_rlist(sdb, k) ((RList *) (size_t) hash_get (sdb, k))
#define hash_get_int(sdb, k) ((int) hash_get (sdb, k))
/* don't use macros for this */
#define get_anode(gn) ((gn)? (RANode *) (gn)->data: NULL)
#define graph_foreach_anode(list, it, pos, anode)\
if (list) for ((it) = (list)->head; (it) && ((pos) = (it)->data) && (pos) && ((anode) = (RANode *) (pos)->data); (it) = (it)->n)
struct len_pos_t {
int len;
int pos;
};
struct dist_t {
const RGraphNode *from;
const RGraphNode *to;
int dist;
};
struct g_cb {
RAGraph *graph;
RANodeCallback node_cb;
RAEdgeCallback edge_cb;
void *data;
};
typedef struct ascii_edge_t {
RANode *from;
RANode *to;
RList *x, *y;
int is_reversed;
} AEdge;
struct layer_t {
int n_nodes;
RGraphNode **nodes;
int position;
int height;
int width;
int gap;
};
struct agraph_refresh_data {
RCore *core;
RAGraph *g;
RAnalFunction **fcn;
bool follow_offset;
int fs;
};
struct r_agraph_location {
int x;
int y;
};
#define G(x, y) r_cons_canvas_gotoxy (g->can, x, y)
#define W(x) r_cons_canvas_write (g->can, x)
#define F(x, y, x2, y2, c) r_cons_canvas_fill (g->can, x, y, x2, y2, c)
static bool is_offset(const RAGraph *g) {
return g->mode == R_AGRAPH_MODE_OFFSET;
}
static bool is_mini(const RAGraph *g) {
return g->mode == R_AGRAPH_MODE_MINI;
}
static bool is_tiny(const RAGraph *g) {
return g->is_tiny || g->mode == R_AGRAPH_MODE_TINY;
}
static bool is_summary(const RAGraph *g) {
return g->mode == R_AGRAPH_MODE_SUMMARY;
}
static bool is_comments(const RAGraph *g) {
return g->mode == R_AGRAPH_MODE_COMMENTS;
}
static int next_mode(int mode) {
return (mode + 1) % R_AGRAPH_MODE_MAX;
}
static int prev_mode(int mode) {
return (mode + R_AGRAPH_MODE_MAX - 1) % R_AGRAPH_MODE_MAX;
}
static RGraphNode *agraph_get_title(const RAGraph *g, RANode *n, bool in) {
if (!n) {
return NULL;
}
if (n->title && *n->title) {
return n->gnode;
}
const RList *outnodes = in? n->gnode->in_nodes : n->gnode->out_nodes;
RGraphNode *gn;
RListIter *iter;
r_list_foreach (outnodes, iter, gn) {
RANode *an = gn->data;
return agraph_get_title (g, an, in);
}
return NULL;
}
static int mode2opts(const RAGraph *g) {
int opts = 0;
if (is_offset (g)) {
opts |= BODY_OFFSETS;
}
if (is_comments (g)) {
opts |= BODY_COMMENTS;
}
if (is_summary (g)) {
opts |= BODY_SUMMARY;
}
return opts;
}
// duplicated from visual.c
static void rotateAsmemu(RCore *core) {
const bool isEmuStr = r_config_get_i (core->config, "emu.str");
const bool isEmu = r_config_get_i (core->config, "asm.emu");
if (isEmu) {
if (isEmuStr) {
r_config_set (core->config, "emu.str", "false");
} else {
r_config_set (core->config, "asm.emu", "false");
}
} else {
r_config_set (core->config, "emu.str", "true");
}
}
static void showcursor(RCore *core, int x) {
if (!x) {
int wheel = r_config_get_i (core->config, "scr.wheel");
if (wheel) {
r_cons_enable_mouse (true);
}
} else {
r_cons_enable_mouse (false);
}
r_cons_show_cursor (x);
}
static char *get_title(ut64 addr) {
return r_str_newf ("0x%"PFMT64x, addr);
}
static int agraph_refresh(struct agraph_refresh_data *grd);
static void update_node_dimension(const RGraph *g, int is_mini, int zoom, int edgemode, bool callgraph, int layout) {
const RList *nodes = r_graph_get_nodes (g);
RGraphNode *gn;
RListIter *it;
RANode *n;
graph_foreach_anode (nodes, it, gn, n) {
if (is_mini) {
n->h = 1;
n->w = MINIGRAPH_NODE_MIN_WIDTH;
} else if (n->is_mini) {
n->h = 1;
n->w = MININODE_MIN_WIDTH;
} else {
n->w = r_str_bounds (n->body, (int *) &n->h);
ut32 len = strlen (n->title) + MARGIN_TEXT_X;
if (len > INT_MAX) {
len = INT_MAX;
}
if (len > n->w) {
n->w = len;
}
// n->w = n->w; //R_MIN (n->w, (int)len);
n->w += BORDER_WIDTH;
n->h += BORDER_HEIGHT;
/* scale node by zoom */
n->w = R_MAX (MIN_NODE_WIDTH, (n->w * zoom) / 100);
n->h = R_MAX (MIN_NODE_HEIGHT, (n->h * zoom) / 100);
if (edgemode == 2 && !callgraph) {
if (!layout) {
n->w = R_MAX (n->w, (r_list_length (n->gnode->out_nodes) * 2 + 1) + R_EDGES_X_INC * 2);
n->w = R_MAX (n->w, (r_list_length (n->gnode->in_nodes) * 2 + 1) + R_EDGES_X_INC * 2);
} else {
n->h = R_MAX (n->h, (r_list_length (n->gnode->out_nodes) + 1) + R_EDGES_X_INC);
n->h = R_MAX (n->h, (r_list_length (n->gnode->in_nodes) + 1) + R_EDGES_X_INC);
}
}
}
}
}
static void append_shortcut (const RAGraph *g, char *title, char *nodetitle, int left) {
const char *shortcut = sdb_const_get (g->db, sdb_fmt ("agraph.nodes.%s.shortcut", nodetitle), 0);
if (shortcut) {
if (g->can->color) {
// XXX: do not hardcode color here
strncat (title, sdb_fmt (Color_YELLOW"[o%s]"Color_RESET, shortcut), left);
} else {
strncat (title, sdb_fmt ("[o%s]", shortcut), left);
}
}
}
static void mini_RANode_print(const RAGraph *g, const RANode *n, int cur, bool details) {
char title[TITLE_LEN];
int x, delta_x = 0;
if (!G (n->x + MINIGRAPH_NODE_CENTER_X, n->y) &&
!G (n->x + MINIGRAPH_NODE_CENTER_X + n->w, n->y)) {
return;
}
x = n->x + MINIGRAPH_NODE_CENTER_X + g->can->sx;
if (x < 0) {
delta_x = -x;
}
if (!G (n->x + MINIGRAPH_NODE_CENTER_X + delta_x, n->y)) {
return;
}
if (details) {
if (cur) {
W (&MINIGRAPH_NODE_TEXT_CUR[delta_x]);
(void) G (-g->can->sx, -g->can->sy + 2);
snprintf (title, sizeof (title) - 1,
"[ %s ]", n->title);
W (title);
if (discroll > 0) {
char *body = r_str_ansi_crop (n->body, 0, discroll, -1, -1);
(void) G (-g->can->sx, -g->can->sy + 3);
W (body);
free (body);
} else {
(void) G (-g->can->sx, -g->can->sy + 3);
W (n->body);
}
} else {
char *str = "____";
if (n->title) {
int l = strlen (n->title);
str = n->title;
if (l > MINIGRAPH_NODE_TITLE_LEN) {
str += l - MINIGRAPH_NODE_TITLE_LEN;
}
}
if (g->can->color) {
snprintf (title, sizeof (title) - 1, "%s__%s__", Color_RESET, str);
} else {
snprintf (title, sizeof (title) - 1, "__%s__", str);
}
append_shortcut (g, title, n->title, sizeof (title) - strlen (title) - 1);
W (r_str_ansi_crop (title, delta_x, 0, 20, 1));
}
} else {
snprintf (title, sizeof (title) - 1,
cur? "[ %s ]": " %s ", n->title);
W (title);
}
return;
}
static void tiny_RANode_print(const RAGraph *g, const RANode *n, int cur) {
G (n->x, n->y);
RCons *cons = r_cons_singleton ();
char *circle = cons->use_utf8 ? UTF_CIRCLE :"()";
if (cur) {
W ("##");
} else {
W (circle);
}
}
static char *get_node_color (int color, int cur) {
RCons *cons = r_cons_singleton ();
if (color == -1) {
return cur ? cons->context->pal.graph_box2 : cons->context->pal.graph_box;
}
return color ? (\
color==R_ANAL_DIFF_TYPE_MATCH ? cons->context->pal.graph_diff_match:
color==R_ANAL_DIFF_TYPE_UNMATCH? cons->context->pal.graph_diff_unmatch : cons->context->pal.graph_diff_new): cons->context->pal.graph_diff_unknown;
}
static void normal_RANode_print(const RAGraph *g, const RANode *n, int cur) {
ut32 center_x = 0, center_y = 0;
ut32 delta_x = 0, delta_txt_x = 0;
ut32 delta_y = 0, delta_txt_y = 0;
char title[TITLE_LEN];
char *body;
int x, y;
int color = n->difftype;
const bool showTitle = g->show_node_titles;
const bool showBody = g->show_node_body;
x = n->x + g->can->sx;
y = n->y + g->can->sy;
if (x + MARGIN_TEXT_X < 0) {
delta_x = -(x + MARGIN_TEXT_X);
}
if (x + n->w < -MARGIN_TEXT_X) {
return;
}
if (y < -1) {
delta_y = R_MIN (n->h - BORDER_HEIGHT - 1, -y - MARGIN_TEXT_Y);
}
/* print the title */
if (showTitle) {
if (cur) {
snprintf (title, sizeof (title) - 1, "[%s]", n->title);
} else {
char *color = g->can->color ? Color_RESET : "";
snprintf (title, sizeof (title) - 1, " %s%s ", color, n->title);
append_shortcut (g, title, n->title, sizeof (title) - strlen (title) - 1);
}
if ((delta_x < strlen (title)) && G (n->x + MARGIN_TEXT_X + delta_x, n->y + 1)) {
char *res = r_str_ansi_crop (title, delta_x, 0, n->w - BORDER_WIDTH, 1);
W (res);
free (res);
}
}
/* print the body */
if (g->zoom > ZOOM_DEFAULT) {
center_x = (g->zoom - ZOOM_DEFAULT) / 10;
center_y = (g->zoom - ZOOM_DEFAULT) / 30;
delta_txt_x = R_MIN (delta_x, center_x);
delta_txt_y = R_MIN (delta_y, center_y);
}
if (showBody) {
if (G (n->x + MARGIN_TEXT_X + delta_x + center_x - delta_txt_x,
n->y + MARGIN_TEXT_Y + delta_y + center_y - delta_txt_y)) {
ut32 body_x = center_x >= delta_x? 0: delta_x - center_x;
ut32 body_y = center_y >= delta_y? 0: delta_y - center_y;
ut32 body_h = BORDER_HEIGHT >= n->h? 1: n->h - BORDER_HEIGHT;
if (g->zoom < ZOOM_DEFAULT) {
body_h--;
}
if (body_y + 1 <= body_h) {
body = r_str_ansi_crop (n->body,
body_x, body_y,
n->w - BORDER_WIDTH,
body_h);
if (body) {
W (body);
if (g->zoom < ZOOM_DEFAULT) {
W ("\n");
}
free (body);
} else {
W (n->body);
}
}
/* print some dots when the body is cropped because of zoom */
if (n->body && *n->body) {
if (body_y <= body_h && g->zoom < ZOOM_DEFAULT) {
char *dots = "...";
if (delta_x < strlen (dots)) {
dots += delta_x;
W (dots);
}
}
}
}
}
// TODO: check if node is traced or not and show proper color
// This info must be stored inside RANode* from RCore*
if (g->show_node_bubble) {
r_cons_canvas_circle (g->can, n->x, n->y, n->w, n->h, get_node_color (color, cur));
} else {
r_cons_canvas_box (g->can, n->x, n->y, n->w, n->h, get_node_color (color, cur));
}
}
static int **get_crossing_matrix(const RGraph *g,
const struct layer_t layers[],
int maxlayer, int i, int from_up,
int *n_rows) {
int j, len = layers[i].n_nodes;
int **m = R_NEWS0 (int *, len);
if (!m) {
return NULL;
}
for (j = 0; j < len; j++) {
m[j] = R_NEWS0 (int, len);
if (!m[j]) {
goto err_row;
}
}
/* calculate crossings between layer i and layer i-1 */
/* consider the crossings generated by each pair of edges */
if (i > 0 && from_up) {
if (r_cons_is_breaked ()) {
goto err_row;
}
for (j = 0; j < layers[i - 1].n_nodes; j++) {
const RGraphNode *gj = layers[i - 1].nodes[j];
const RList *neigh = r_graph_get_neighbours (g, gj);
RGraphNode *gk;
RListIter *itk;
r_list_foreach (neigh, itk, gk) {
int s;
// skip self-loop
if (gj == gk) {
continue;
}
for (s = 0; s < j; s++) {
const RGraphNode *gs = layers[i - 1].nodes[s];
const RList *neigh_s = r_graph_get_neighbours (g, gs);
RGraphNode *gt;
RListIter *itt;
r_list_foreach (neigh_s, itt, gt) {
const RANode *ak, *at; /* k and t should be "indexes" on layer i */
if (gt == gk || gt == gs) {
continue;
}
ak = get_anode (gk);
at = get_anode (gt);
if (ak->layer != i || at->layer != i) {
// this should never happen
// but it happens if we do graph.dummy = false, so better hide it for now
#if 0
eprintf ("(WARNING) \"%s\" (%d) or \"%s\" (%d) are not on the right layer (%d)\n",
ak->title, ak->layer,
at->title, at->layer,
i);
#endif
continue;
}
m[ak->pos_in_layer][at->pos_in_layer]++;
}
}
}
}
}
/* calculate crossings between layer i and layer i+1 */
if (i < maxlayer - 1 && !from_up) {
if (r_cons_is_breaked ()) {
goto err_row;
}
for (j = 0; j < layers[i].n_nodes; j++) {
const RGraphNode *gj = layers[i].nodes[j];
const RList *neigh = r_graph_get_neighbours (g, gj);
const RANode *ak, *aj = get_anode (gj);
RGraphNode *gk;
RListIter *itk;
if (r_cons_is_breaked ()) {
goto err_row;
}
graph_foreach_anode (neigh, itk, gk, ak) {
int s;
for (s = 0; s < layers[i].n_nodes; s++) {
const RGraphNode *gs = layers[i].nodes[s];
const RList *neigh_s;
RGraphNode *gt;
RListIter *itt;
const RANode *at, *as = get_anode (gs);
if (gs == gj) {
continue;
}
neigh_s = r_graph_get_neighbours (g, gs);
graph_foreach_anode (neigh_s, itt, gt, at) {
if (at->pos_in_layer < ak->pos_in_layer) {
m[aj->pos_in_layer][as->pos_in_layer]++;
}
}
}
}
}
}
if (n_rows) {
*n_rows = len;
}
return m;
err_row:
for (i = 0; i < len; i++) {
free (m[i]);
}
free (m);
return NULL;
}
static int layer_sweep(const RGraph *g, const struct layer_t layers[],
int maxlayer, int i, int from_up) {
RGraphNode *u, *v;
const RANode *au, *av;
int n_rows, j, changed = false;
int len = layers[i].n_nodes;
int **cross_matrix = get_crossing_matrix (g, layers, maxlayer, i, from_up, &n_rows);
if (!cross_matrix) {
return -1; // ERROR HAPPENS
}
for (j = 0; j < len - 1; j++) {
int auidx, avidx;
u = layers[i].nodes[j];
v = layers[i].nodes[j + 1];
au = get_anode (u);
av = get_anode (v);
auidx = au->pos_in_layer;
avidx = av->pos_in_layer;
if (cross_matrix[auidx][avidx] > cross_matrix[avidx][auidx]) {
/* swap elements */
layers[i].nodes[j] = v;
layers[i].nodes[j + 1] = u;
changed = true;
}
}
/* update position in the layer of each node. During the swap of some
* elements we didn't swap also the pos_in_layer because the cross_matrix
* is indexed by it, so do it now! */
for (j = 0; j < layers[i].n_nodes; j++) {
RANode *n = get_anode (layers[i].nodes[j]);
n->pos_in_layer = j;
}
for (j = 0; j < n_rows; j++) {
free (cross_matrix[j]);
}
free (cross_matrix);
return changed;
}
static void view_cyclic_edge(const RGraphEdge *e, const RGraphVisitor *vis) {
const RAGraph *g = (RAGraph *) vis->data;
RGraphEdge *new_e = R_NEW0 (RGraphEdge);
if (!new_e) {
return;
}
new_e->from = e->from;
new_e->to = e->to;
new_e->nth = e->nth;
r_list_append (g->back_edges, new_e);
}
static void view_dummy(const RGraphEdge *e, const RGraphVisitor *vis) {
const RANode *a = get_anode (e->from);
const RANode *b = get_anode (e->to);
RList *long_edges = (RList *) vis->data;
if (!a || !b) {
return;
}
if (R_ABS (a->layer - b->layer) > 1) {
RGraphEdge *new_e = R_NEW0 (RGraphEdge);
if (!new_e) {
return;
}
new_e->from = e->from;
new_e->to = e->to;
new_e->nth = e->nth;
r_list_append (long_edges, new_e);
}
}
/* find a set of edges that, removed, makes the graph acyclic */
/* invert the edges identified in the previous step */
static void remove_cycles(RAGraph *g) {
RGraphVisitor cyclic_vis = {
NULL, NULL, NULL, NULL, NULL, NULL
};
const RGraphEdge *e;
const RListIter *it;
g->back_edges = r_list_new ();
cyclic_vis.back_edge = (RGraphEdgeCallback) view_cyclic_edge;
cyclic_vis.data = g;
r_graph_dfs (g->graph, &cyclic_vis);
r_list_foreach (g->back_edges, it, e) {
RANode *from = e->from? get_anode (e->from): NULL;
RANode *to = e->to? get_anode (e->to): NULL;
if (from && to) {
r_agraph_del_edge (g, from, to);
r_agraph_add_edge_at (g, to, from, e->nth);
}
}
}
static void add_sorted(RGraphNode *n, RGraphVisitor *vis) {
RList *l = (RList *) vis->data;
r_list_prepend (l, n);
}
/* assign a layer to each node of the graph.
*
* It visits the nodes of the graph in the topological sort, so that every time
* you visit a node, you can be sure that you have already visited all nodes
* that can lead to that node and thus you can easily compute the layer based
* on the layer of these "parent" nodes. */
static void assign_layers(const RAGraph *g) {
RGraphVisitor layer_vis = {
NULL, NULL, NULL, NULL, NULL, NULL
};
const RGraphNode *gn;
const RListIter *it;
RANode *n;
RList *topological_sort = r_list_new ();
layer_vis.data = topological_sort;
layer_vis.finish_node = (RGraphNodeCallback) add_sorted;
r_graph_dfs (g->graph, &layer_vis);
graph_foreach_anode (topological_sort, it, gn, n) {
const RList *innodes = r_graph_innodes (g->graph, gn);
RListIter *it;
RGraphNode *prev;
RANode *preva;
n->layer = 0;
graph_foreach_anode (innodes, it, prev, preva) {
if (preva->layer + 1 > n->layer) {
n->layer = preva->layer + 1;
}
}
}
r_list_free (topological_sort);
}
static int find_edge(const RGraphEdge *a, const RGraphEdge *b) {
return a->from == b->to && a->to == b->from? 0: 1;
}
static bool is_reversed(const RAGraph *g, const RGraphEdge *e) {
return (bool)r_list_find (g->back_edges, e, (RListComparator) find_edge);
}
/* add dummy nodes when there are edges that span multiple layers */
static void create_dummy_nodes(RAGraph *g) {
if (!g->dummy) {
return;
}
RGraphVisitor dummy_vis = {
NULL, NULL, NULL, NULL, NULL, NULL
};
const RListIter *it;
const RGraphEdge *e;
g->long_edges = r_list_newf ((RListFree)free);
dummy_vis.data = g->long_edges;
dummy_vis.tree_edge = (RGraphEdgeCallback) view_dummy;
dummy_vis.fcross_edge = (RGraphEdgeCallback) view_dummy;
r_graph_dfs (g->graph, &dummy_vis);
r_list_foreach (g->long_edges, it, e) {
RANode *from = get_anode (e->from);
RANode *to = get_anode (e->to);
int diff_layer = R_ABS (from->layer - to->layer);
RANode *prev = get_anode (e->from);
int i, nth = e->nth;
r_agraph_del_edge (g, from, to);
for (i = 1; i < diff_layer; i++) {
RANode *dummy = r_agraph_add_node (g, NULL, NULL);
if (!dummy) {
return;
}
dummy->is_dummy = true;
dummy->layer = from->layer + i;
dummy->is_reversed = is_reversed (g, e);
dummy->w = 1;
r_agraph_add_edge_at (g, prev, dummy, nth);
prev = dummy;
nth = -1;
}
r_graph_add_edge (g->graph, prev->gnode, e->to);
}
}
/* create layers and assign an initial ordering of the nodes into them */
static void create_layers(RAGraph *g) {
const RList *nodes = r_graph_get_nodes (g->graph);
RGraphNode *gn;
const RListIter *it;
RANode *n;
int i;
/* identify max layer */
g->n_layers = 0;
graph_foreach_anode (nodes, it, gn, n) {
if (n->layer > g->n_layers) {
g->n_layers = n->layer;
}
}
/* create a starting ordering of nodes for each layer */
g->n_layers++;
if (sizeof (struct layer_t) * g->n_layers < g->n_layers) {
return;
}
g->layers = R_NEWS0 (struct layer_t, g->n_layers);
graph_foreach_anode (nodes, it, gn, n) {
g->layers[n->layer].n_nodes++;
}
for (i = 0; i < g->n_layers; i++) {
if (sizeof (RGraphNode *) * g->layers[i].n_nodes < g->layers[i].n_nodes) {
continue;
}
g->layers[i].nodes = R_NEWS0 (RGraphNode *,
1 + g->layers[i].n_nodes);
g->layers[i].position = 0;
}
graph_foreach_anode (nodes, it, gn, n) {
n->pos_in_layer = g->layers[n->layer].position;
g->layers[n->layer].nodes[g->layers[n->layer].position++] = gn;
}
}
/* layer-by-layer sweep */
/* it permutes each layer, trying to find the best ordering for each layer
* to minimize the number of crossing edges */
static void minimize_crossings(const RAGraph *g) {
int i, cross_changed, max_changes = 4096;
do {
cross_changed = false;
max_changes--;
for (i = 0; i < g->n_layers; i++) {
int rc = layer_sweep (g->graph, g->layers, g->n_layers, i, true);
if (rc == -1) {
return;
}
cross_changed |= !!rc;
}
} while (cross_changed && max_changes);
max_changes = 4096;
do {
cross_changed = false;
max_changes--;
for (i = g->n_layers - 1; i >= 0; i--) {
int rc = layer_sweep (g->graph, g->layers, g->n_layers, i, false);
if (rc == -1) {
return;
}
cross_changed |= !!rc;
}
} while (cross_changed && max_changes);
}
static int find_dist(const struct dist_t *a, const struct dist_t *b) {
return a->from == b->from && a->to == b->to? 0: 1;
}
/* returns the distance between two nodes */
/* if the distance between two nodes were explicitly set, returns that;
* otherwise calculate the distance of two nodes on the same layer */
static int dist_nodes(const RAGraph *g, const RGraphNode *a, const RGraphNode *b) {
struct dist_t d;
const RANode *aa, *ab;
RListIter *it;
int res = 0;
if (g->dists) {
d.from = a;
d.to = b;
it = r_list_find (g->dists, &d, (RListComparator) find_dist);
if (it) {
struct dist_t *old = (struct dist_t *) r_list_iter_get_data (it);
return old->dist;
}
}
aa = get_anode (a);
ab = get_anode (b);
if (aa && ab && aa->layer == ab->layer) {
int i;
res = aa == ab && !aa->is_reversed? HORIZONTAL_NODE_SPACING: 0;
for (i = aa->pos_in_layer; i < ab->pos_in_layer; i++) {
const RGraphNode *cur = g->layers[aa->layer].nodes[i];
const RGraphNode *next = g->layers[aa->layer].nodes[i + 1];
const RANode *anext = get_anode (next);
const RANode *acur = get_anode (cur);
int found = false;
if (g->dists) {
d.from = cur;
d.to = next;
it = r_list_find (g->dists, &d, (RListComparator) find_dist);
if (it) {
struct dist_t *old = (struct dist_t *) r_list_iter_get_data (it);
res += old->dist;
found = true;
}
}
if (acur && anext && !found) {
int space = HORIZONTAL_NODE_SPACING;
if (acur->is_reversed && anext->is_reversed) {
if (!acur->is_reversed) {
res += acur->w / 2;
} else if (!anext->is_reversed) {
res += anext->w / 2;
}
res += 1;
} else {
res += acur->w / 2 + anext->w / 2 + space;
}
}
}
}
return res;
}
/* explicitly set the distance between two nodes on the same layer */
static void set_dist_nodes(const RAGraph *g, int l, int cur, int next) {
struct dist_t *d, find_el;
const RGraphNode *vi, *vip;
const RANode *avi, *avip;
RListIter *it;
if (!g->dists) {
return;
}
vi = g->layers[l].nodes[cur];
vip = g->layers[l].nodes[next];
avi = get_anode (vi);
avip = get_anode (vip);
find_el.from = vi;
find_el.to = vip;
it = r_list_find (g->dists, &find_el, (RListComparator) find_dist);
d = it? (struct dist_t *) r_list_iter_get_data (it): R_NEW0 (struct dist_t);
d->from = vi;
d->to = vip;
d->dist = (avip && avi)? avip->x - avi->x: 0;
if (!it) {
r_list_push (g->dists, d);
}
}
static int is_valid_pos(const RAGraph *g, int l, int pos) {
return pos >= 0 && pos < g->layers[l].n_nodes;
}
/* computes the set of vertical classes in the graph */
/* if v is an original node, L(v) = { v }
* if v is a dummy node, L(v) is the set of all the dummies node that belongs
* to the same long edge */
static Sdb *compute_vertical_nodes(const RAGraph *g) {
Sdb *res = sdb_new0 ();
int i, j;
for (i = 0; i < g->n_layers; i++) {
for (j = 0; j < g->layers[i].n_nodes; j++) {
RGraphNode *gn = g->layers[i].nodes[j];
const RList *Ln = hash_get_rlist (res, gn);
const RANode *an = get_anode (gn);
if (!Ln) {
RList *vert = r_list_new ();
hash_set (res, gn, vert);
if (an->is_dummy) {
RGraphNode *next = gn;
const RANode *anext = get_anode (next);
while (anext->is_dummy) {
r_list_append (vert, next);
next = r_graph_nth_neighbour (g->graph, next, 0);
if (!next) {
break;
}
anext = get_anode (next);
}
} else {
r_list_append (vert, gn);
}
}
}
}
return res;
}
/* computes left or right classes, used to place dummies node */
/* classes respect three properties:
* - v E C
* - w E C => L(v) is a subset of C
* - w E C, the s+(w) exists and is not in any class yet => s+(w) E C */
static RList **compute_classes(const RAGraph *g, Sdb *v_nodes, int is_left, int *n_classes) {
int i, j, c;
RList **res = R_NEWS0 (RList *, g->n_layers);
RGraphNode *gn;
const RListIter *it;
RANode *n;
graph_foreach_anode (r_graph_get_nodes (g->graph), it, gn, n) {
n->klass = -1;
}
for (i = 0; i < g->n_layers; i++) {
c = i;
for (j = is_left? 0: g->layers[i].n_nodes - 1;
(is_left && j < g->layers[i].n_nodes) || (!is_left && j >= 0);
j = is_left? j + 1: j - 1) {
const RGraphNode *gj = g->layers[i].nodes[j];
const RANode *aj = get_anode (gj);
if (aj->klass == -1) {
const RList *laj = hash_get_rlist (v_nodes, gj);
if (!res[c]) {
res[c] = r_list_new ();
}
graph_foreach_anode (laj, it, gn, n) {
r_list_append (res[c], gn);
n->klass = c;
}
} else {
c = aj->klass;
}
}
}
if (n_classes) {
*n_classes = g->n_layers;
}
return res;
}
static int cmp_dist(const size_t a, const size_t b) {
return (a < b) - (a > b);
}
static RGraphNode *get_sibling(const RAGraph *g, const RANode *n, int is_left, int is_adjust_class) {
RGraphNode *res = NULL;
int pos = n->pos_in_layer;
if ((is_left && is_adjust_class) || (!is_left && !is_adjust_class)) {
pos++;
} else {
pos--;
}
if (is_valid_pos (g, n->layer, pos)) {
res = g->layers[n->layer].nodes[pos];
}
return res;
}
static int adjust_class_val(const RAGraph *g, const RGraphNode *gn, const RGraphNode *sibl, Sdb *res, int is_left) {
if (is_left) {
return hash_get_int (res, sibl) - hash_get_int (res, gn) - dist_nodes (g, gn, sibl);
}
return hash_get_int (res, gn) - hash_get_int (res, sibl) - dist_nodes (g, sibl, gn);
}
/* adjusts the position of previously placed left/right classes */
/* tries to place classes as close as possible */
static void adjust_class(const RAGraph *g, int is_left, RList **classes, Sdb *res, int c) {
const RGraphNode *gn;
const RListIter *it;
const RANode *an;
int dist = 0;
bool is_first = true;
graph_foreach_anode (classes[c], it, gn, an) {
const RGraphNode *sibling;
const RANode *sibl_anode;
sibling = get_sibling (g, an, is_left, true);
if (!sibling) {
continue;
}
sibl_anode = get_anode (sibling);
if (sibl_anode->klass == c) {
continue;
}
int v = adjust_class_val (g, gn, sibling, res, is_left);
dist = is_first? v: R_MIN (dist, v);
is_first = false;
}
if (is_first) {
RList *heap = r_list_new ();
int len;
graph_foreach_anode (classes[c], it, gn, an) {
const RList *neigh = r_graph_all_neighbours (g->graph, gn);
const RGraphNode *gk;
const RListIter *itk;
const RANode *ak;
graph_foreach_anode (neigh, itk, gk, ak) {
if (ak->klass < c) {
size_t d = (ak->x - an->x);
if (d > 0) {
r_list_append (heap, (void *) d);
}
}
}
}
len = r_list_length (heap);
if (len == 0) {
dist = 0;
} else {
r_list_sort (heap, (RListComparator) cmp_dist);
dist = (int) (size_t) r_list_get_n (heap, len / 2);
}
r_list_free (heap);
}
graph_foreach_anode (classes[c], it, gn, an) {
const int old_val = hash_get_int (res, gn);
const int new_val = is_left? old_val + dist: old_val - dist;
hash_set (res, gn, new_val);
}
}
static int place_nodes_val(const RAGraph *g, const RGraphNode *gn, const RGraphNode *sibl, Sdb *res, int is_left) {
if (is_left) {
return hash_get_int (res, sibl) + dist_nodes (g, sibl, gn);
}
return hash_get_int (res, sibl) - dist_nodes (g, gn, sibl);
}
static int place_nodes_sel_p(int newval, int oldval, int is_first, int is_left) {
if (is_first) {
return newval;
}
if (is_left) {
return R_MAX (oldval, newval);
}
return R_MIN (oldval, newval);
}
/* places left/right the nodes of a class */
static void place_nodes(const RAGraph *g, const RGraphNode *gn, int is_left, Sdb *v_nodes, RList **classes, Sdb *res, Sdb *placed) {
const RList *lv = hash_get_rlist (v_nodes, gn);
int p = 0, v, is_first = true;
const RGraphNode *gk;
const RListIter *itk;
const RANode *ak;
graph_foreach_anode (lv, itk, gk, ak) {
const RGraphNode *sibling;
const RANode *sibl_anode;
sibling = get_sibling (g, ak, is_left, false);
if (!sibling) {
continue;
}
sibl_anode = get_anode (sibling);
if (ak->klass == sibl_anode->klass) {
if (!hash_get (placed, sibling)) {
place_nodes (g, sibling, is_left, v_nodes, classes, res, placed);
}
v = place_nodes_val (g, gk, sibling, res, is_left);
p = place_nodes_sel_p (v, p, is_first, is_left);
is_first = false;
}
}
if (is_first) {
p = is_left? 0: 50;
}
graph_foreach_anode (lv, itk, gk, ak) {
hash_set (res, gk, p);
hash_set (placed, gk, true);
}
}
/* computes the position to the left/right of all the nodes */
static Sdb *compute_pos(const RAGraph *g, int is_left, Sdb *v_nodes) {
int n_classes, i;
RList **classes = compute_classes (g, v_nodes, is_left, &n_classes);
if (!classes) {
return NULL;
}
Sdb *res = sdb_new0 ();
Sdb *placed = sdb_new0 ();
for (i = 0; i < n_classes; i++) {
const RGraphNode *gn;
const RListIter *it;
r_list_foreach (classes[i], it, gn) {
if (!hash_get_rnode (placed, gn)) {
place_nodes (g, gn, is_left, v_nodes, classes, res, placed);
}
}
adjust_class (g, is_left, classes, res, i);
}
sdb_free (placed);
for (i = 0; i < n_classes; i++) {
if (classes[i]) {
r_list_free (classes[i]);
}
}
free (classes);
return res;
}
static int free_vertical_nodes_cb(void *user UNUSED, const char *k UNUSED, const char *v) {
r_list_free ((RList *) (size_t) sdb_atoi (v));
return 1;
}
/* calculates position of all nodes, but in particular dummies nodes */
/* computes two different placements (called "left"/"right") and set the final
* position of each node to the average of the values in the two placements */
static void place_dummies(const RAGraph *g) {
const RList *nodes;
const RGraphNode *gn;
const RListIter *it;
RANode *n;
Sdb *vertical_nodes = compute_vertical_nodes (g);
if (!vertical_nodes) {
return;
}
Sdb *xminus = compute_pos (g, true, vertical_nodes);
if (!xminus) {
goto xminus_err;
}
Sdb *xplus = compute_pos (g, false, vertical_nodes);
if (!xplus) {
goto xplus_err;
}
nodes = r_graph_get_nodes (g->graph);
graph_foreach_anode (nodes, it, gn, n) {
n->x = (hash_get_int (xminus, gn) + hash_get_int (xplus, gn)) / 2;
}
sdb_free (xplus);
xplus_err:
sdb_free (xminus);
xminus_err:
sdb_foreach (vertical_nodes, (SdbForeachCallback)free_vertical_nodes_cb, NULL);
sdb_free (vertical_nodes);
}
static RGraphNode *get_right_dummy(const RAGraph *g, const RGraphNode *n) {
const RANode *an = get_anode (n);
if (!an) {
return NULL;
}
int k, layer = an->layer;
for (k = an->pos_in_layer + 1; k < g->layers[layer].n_nodes; k++) {
RGraphNode *gk = g->layers[layer].nodes[k];
const RANode *ak = get_anode (gk);
if (!ak) {
break;
}
if (ak->is_dummy) {
return gk;
}
}
return NULL;
}
static void adjust_directions(const RAGraph *g, int i, int from_up, Sdb *D, Sdb *P) {
const RGraphNode *vm = NULL, *wm = NULL;
const RANode *vma = NULL, *wma = NULL;
int j, d = from_up? 1: -1;
if (i + d < 0 || i + d >= g->n_layers) {
return;
}
for (j = 0; j < g->layers[i + d].n_nodes; j++) {
const RGraphNode *wp, *vp = g->layers[i + d].nodes[j];
const RANode *wpa, *vpa = get_anode (vp);
if (!vpa || !vpa->is_dummy) {
continue;
}
if (from_up) {
wp = r_list_get_n (r_graph_innodes (g->graph, vp), 0);
} else {
wp = r_graph_nth_neighbour (g->graph, vp, 0);
}
wpa = get_anode (wp);
if (!wpa || !wpa->is_dummy) {
continue;
}
if (vm) {
int p = hash_get_int (P, wm);
int k;
for (k = wma->pos_in_layer + 1; k < wpa->pos_in_layer; k++) {
const RGraphNode *w = g->layers[wma->layer].nodes[k];
const RANode *aw = get_anode (w);
if (aw && aw->is_dummy) {
p &= hash_get_int (P, w);
}
}
if (p) {
hash_set (D, vm, from_up);
for (k = vma->pos_in_layer + 1; k < vpa->pos_in_layer; k++) {
const RGraphNode *v = g->layers[vma->layer].nodes[k];
const RANode *av = get_anode (v);
if (av && av->is_dummy) {
hash_set (D, v, from_up);
}
}
}
}
vm = vp;
wm = wp;
vma = get_anode (vm);
wma = get_anode (wm);
}
}
/* find a placement for a single node */
static void place_single(const RAGraph *g, int l, const RGraphNode *bm, const RGraphNode *bp, int from_up, int va) {
const RGraphNode *gk, *v = g->layers[l].nodes[va];
const RANode *ak;
RANode *av = get_anode (v);
if (!av) {
return;
}
const RListIter *itk;
const RList *neigh = from_up
? r_graph_innodes (g->graph, v)
: r_graph_get_neighbours (g->graph, v);
int len = r_list_length (neigh);
if (len == 0) {
return;
}
int sum_x = 0;
graph_foreach_anode (neigh, itk, gk, ak) {
if (ak->is_reversed) {
len--;
continue;
}
sum_x += ak->x;
}
if (len == 0) {
return;
}
if (av) {
av->x = sum_x / len;
}
if (bm) {
const RANode *bma = get_anode (bm);
av->x = R_MAX (av->x, bma->x + dist_nodes (g, bm, v));
}
if (bp) {
const RANode *bpa = get_anode (bp);
av->x = R_MIN (av->x, bpa->x - dist_nodes (g, v, bp));
}
}
static int RM_listcmp(const struct len_pos_t *a, const struct len_pos_t *b) {
return (a->pos < b->pos) - (a->pos > b->pos);
}
static int RP_listcmp(const struct len_pos_t *a, const struct len_pos_t *b) {
return (a->pos > b->pos) - (a->pos < b->pos);
}
static void collect_changes(const RAGraph *g, int l, const RGraphNode *b, int from_up, int s, int e, RList *list, int is_left) {
const RGraphNode *vt = g->layers[l].nodes[e - 1];
const RGraphNode *vtp = g->layers[l].nodes[s];
struct len_pos_t *cx;
int i;
RListComparator lcmp = is_left? (RListComparator) RM_listcmp: (RListComparator) RP_listcmp;
for (i = is_left? s: e - 1; (is_left && i < e) || (!is_left && i >= s); i = is_left? i + 1: i - 1) {
const RGraphNode *v, *vi = g->layers[l].nodes[i];
const RANode *av, *avi = get_anode (vi);
const RList *neigh;
const RListIter *it;
int c = 0;
if (!avi) {
continue;
}
neigh = from_up
? r_graph_innodes (g->graph, vi)
: r_graph_get_neighbours (g->graph, vi);
graph_foreach_anode (neigh, it, v, av) {
if ((is_left && av->x >= avi->x) || (!is_left && av->x <= avi->x)) {
c++;
} else {
cx = R_NEW (struct len_pos_t);
c--;
cx->len = 2;
cx->pos = av->x;
if (is_left) {
cx->pos += dist_nodes (g, vi, vt);
} else {
cx->pos -= dist_nodes (g, vtp, vi);
}
r_list_add_sorted (list, cx, lcmp);
}
}
cx = R_NEW0 (struct len_pos_t);
cx->len = c;
cx->pos = avi->x;
if (is_left) {
cx->pos += dist_nodes (g, vi, vt);
} else {
cx->pos -= dist_nodes (g, vtp, vi);
}
r_list_add_sorted (list, cx, lcmp);
}
if (b) {
const RANode *ab = get_anode (b);
cx = R_NEW (struct len_pos_t);
if (cx) {
cx->len = is_left? INT_MAX: INT_MIN;
cx->pos = ab->x;
if (is_left) {
cx->pos += dist_nodes (g, b, vt);
} else {
cx->pos -= dist_nodes (g, vtp, b);
}
r_list_add_sorted (list, cx, lcmp);
}
}
}
static void combine_sequences(const RAGraph *g, int l, const RGraphNode *bm, const RGraphNode *bp, int from_up, int a, int r) {
RList *Rm = r_list_new (), *Rp = r_list_new ();
const RGraphNode *vt, *vtp;
RANode *at, *atp;
int rm, rp, t, m, i;
Rm->free = (RListFree) free;
Rp->free = (RListFree) free;
t = (a + r) / 2;
vt = g->layers[l].nodes[t - 1];
vtp = g->layers[l].nodes[t];
at = get_anode (vt);
atp = get_anode (vtp);
collect_changes (g, l, bm, from_up, a, t, Rm, true);
collect_changes (g, l, bp, from_up, t, r, Rp, false);
rm = rp = 0;
m = dist_nodes (g, vt, vtp);
if (at && atp) {
while (atp->x - at->x < m) {
if (atp->x == at->x) {
int step = m / 2;
at->x -= step;
atp->x += m - step;
} else {
if (rm < rp) {
if (r_list_empty (Rm)) {
at->x = atp->x - m;
} else {
struct len_pos_t *cx = (struct len_pos_t *) r_list_pop (Rm);
rm = rm + cx->len;
at->x = R_MAX (cx->pos, atp->x - m);
free (cx);
}
} else {
if (r_list_empty (Rp)) {
atp->x = at->x + m;
} else {
struct len_pos_t *cx = (struct len_pos_t *) r_list_pop (Rp);
rp = rp + cx->len;
atp->x = R_MIN (cx->pos, at->x + m);
free (cx);
}
}
}
}
}
r_list_free (Rm);
r_list_free (Rp);
for (i = t - 2; i >= a; i--) {
const RGraphNode *gv = g->layers[l].nodes[i];
RANode *av = get_anode (gv);
if (av && at) {
av->x = R_MIN (av->x, at->x - dist_nodes (g, gv, vt));
}
}
for (i = t + 1; i < r; i++) {
const RGraphNode *gv = g->layers[l].nodes[i];
RANode *av = get_anode (gv);
if (av && atp) {
av->x = R_MAX (av->x, atp->x + dist_nodes (g, vtp, gv));
}
}
}
/* places a sequence of consecutive original nodes */
/* it tries to minimize the distance between each node in the sequence and its
* neighbours in the "previous" layer. Those neighbours are considered as
* "fixed". The previous layer depends on the direction used during the layers
* traversal */
static void place_sequence(const RAGraph *g, int l, const RGraphNode *bm, const RGraphNode *bp, int from_up, int va, int vr) {
if (vr == va + 1) {
place_single (g, l, bm, bp, from_up, va);
} else if (vr > va + 1) {
int vt = (vr + va) / 2;
place_sequence (g, l, bm, bp, from_up, va, vt);
place_sequence (g, l, bm, bp, from_up, vt, vr);
combine_sequences (g, l, bm, bp, from_up, va, vr);
}
}
/* finds the placements of nodes while traversing the graph in the given
* direction */
/* places all the sequences of consecutive original nodes in each layer. */
static void original_traverse_l(const RAGraph *g, Sdb *D, Sdb *P, int from_up) {
int i, k, va, vr;
for (i = from_up? 0: g->n_layers - 1;
(from_up && i < g->n_layers) || (!from_up && i >= 0);
i = from_up? i + 1: i - 1) {
int j;
const RGraphNode *bm = NULL;
const RANode *bma = NULL;
j = 0;
while (j < g->layers[i].n_nodes && !bm) {
const RGraphNode *gn = g->layers[i].nodes[j];
const RANode *an = get_anode (gn);
if (an && an->is_dummy) {
va = 0;
vr = j;
bm = gn;
bma = an;
}
j++;
}
if (!bm) {
va = 0;
vr = g->layers[i].n_nodes;
}
place_sequence (g, i, NULL, bm, from_up, va, vr);
for (k = va; k < vr - 1; k++) {
set_dist_nodes (g, i, k, k + 1);
}
if (is_valid_pos (g, i, vr - 1) && bm) {
set_dist_nodes (g, i, vr - 1, bma->pos_in_layer);
}
while (bm) {
const RGraphNode *bp = get_right_dummy (g, bm);
const RANode *bpa = NULL;
bma = get_anode (bm);
if (!bp) {
va = bma->pos_in_layer + 1;
vr = g->layers[bma->layer].n_nodes;
place_sequence (g, i, bm, NULL, from_up, va, vr);
for (k = va; k < vr - 1; k++) {
set_dist_nodes (g, i, k, k + 1);
}
if (is_valid_pos (g, i, va)) {
set_dist_nodes (g, i, bma->pos_in_layer, va);
}
} else if (hash_get_int (D, bm) == from_up) {
bpa = get_anode (bp);
va = bma->pos_in_layer + 1;
vr = bpa->pos_in_layer;
place_sequence (g, i, bm, bp, from_up, va, vr);
hash_set (P, bm, true);
}
bm = bp;
}
adjust_directions (g, i, from_up, D, P);
}
}
/* computes a final position of original nodes, considering dummies nodes as
* fixed */
/* set the node placements traversing the graph downward and then upward */
static void place_original(RAGraph *g) {
const RList *nodes = r_graph_get_nodes (g->graph);
const RGraphNode *gn;
const RListIter *itn;
const RANode *an;
Sdb *D = sdb_new0 ();
if (!D) {
return;
}
Sdb *P = sdb_new0 ();
if (!P) {
sdb_free (D);
return;
}
g->dists = r_list_newf ((RListFree) free);
if (!g->dists) {
sdb_free (D);
sdb_free (P);
return;
}
graph_foreach_anode (nodes, itn, gn, an) {
if (!an->is_dummy) {
continue;
}
const RGraphNode *right_v = get_right_dummy (g, gn);
const RANode *right = get_anode (right_v);
if (right_v && right) {
hash_set (D, gn, 0);
int dt_eq = right->x - an->x == dist_nodes (g, gn, right_v);
hash_set (P, gn, dt_eq);
}
}
original_traverse_l (g, D, P, true);
original_traverse_l (g, D, P, false);
r_list_free (g->dists);
g->dists = NULL;
sdb_free (P);
sdb_free (D);
}
#if 0
static void free_anode(RANode *n);
static void remove_dummy_nodes(const RAGraph *g) {
const RList *nodes = r_graph_get_nodes (g->graph);
RGraphNode *gn;
RListIter *it;
RANode *n;
graph_foreach_anode (nodes, it, gn, n) {
if (n->is_dummy) {
r_graph_del_node (g->graph, gn);
n->gnode = NULL;
free_anode (n);
}
}
}
#endif
static void set_layer_gap (RAGraph *g) {
int gap = 0;
int i = 0, j = 0;
RListIter *itn;
RGraphNode *ga, *gb;
RANode *a, *b;
const RList *outnodes;
g->layers[0].gap = 0;
for (i = 0; i < g->n_layers; i++) {
gap = 0;
if (i + 1 < g->n_layers) {
g->layers[i+1].gap = gap;
}
for (j = 0; j < g->layers[i].n_nodes; j++) {
ga = g->layers[i].nodes[j];
if (!ga) {
continue;
}
a = (RANode *) ga->data;
outnodes = ga->out_nodes;
if (!outnodes || !a) {
continue;
}
graph_foreach_anode (outnodes, itn, gb, b) {
if (g->layout == 0) { // vertical layout
if ((b->x != a->x) || b->layer <= a->layer) {
gap += 1;
if (b->layer <= a->layer) {
g->layers[b->layer].gap += 1;
}
} else if ((!a->is_dummy && b->is_dummy) || (a->is_dummy && !b->is_dummy)) {
gap += 1;
}
} else {
if ((b->y == a->y && b->h != a->h) || b->y != a->y || b->layer <= a->layer) {
gap += 1;
if (b->layer <= a->layer) {
g->layers[b->layer].gap += 1;
}
} else if ((!a->is_dummy && b->is_dummy) || (a->is_dummy && !b->is_dummy)) {
gap += 1;
}
}
}
}
if (i + 1 < g->n_layers) {
g->layers[i+1].gap += gap;
}
}
}
static void fix_back_edge_dummy_nodes(RAGraph *g, RANode *from, RANode *to) {
RANode *v, *tmp = NULL;
RGraphNode *gv = NULL;
RListIter *it;
int i;
r_return_if_fail (g && from && to);
const RList *neighbours = r_graph_get_neighbours (g->graph, to->gnode);
graph_foreach_anode (neighbours, it, gv, v) {
tmp = v;
while (tmp->is_dummy) {
tmp = (RANode *) (((RGraphNode *)r_list_first (tmp->gnode->out_nodes))->data);
}
if (tmp->gnode->idx == from->gnode->idx) {
break;
}
tmp = NULL;
}
if (tmp) {
tmp = v;
v = to;
while (tmp->gnode->idx != from->gnode->idx) {
v = tmp;
tmp = (RANode *) (((RGraphNode *)r_list_first (v->gnode->out_nodes))->data);
i = 0;
while (v->gnode->idx != g->layers[v->layer].nodes[i]->idx) {
i += 1;
}
while (i + 1 < g->layers[v->layer].n_nodes) {
g->layers[v->layer].nodes[i] = g->layers[v->layer].nodes[i+1];
i++;
}
g->layers[v->layer].nodes[g->layers[v->layer].n_nodes - 1] = 0;
g->layers[v->layer].n_nodes -= 1;
r_graph_del_node (g->graph, v->gnode);
}
}
}
static int get_edge_number (const RAGraph *g, RANode *src, RANode *dst, bool outgoing) {
RListIter *itn;
RGraphNode *gv;
int cur_nth = 0;
int nth = 0;
RANode *v;
if (outgoing && src->is_dummy) {
RANode *in = (RANode *) (((RGraphNode *)r_list_first ((src->gnode)->in_nodes))->data);
cur_nth = get_edge_number (g, in, src, outgoing);
} else {
const RList *neighbours = outgoing
? r_graph_get_neighbours (g->graph, src->gnode)
: r_graph_innodes (g->graph, dst->gnode);
const int exit_edges = r_list_length (neighbours);
graph_foreach_anode (neighbours, itn, gv, v) {
cur_nth = nth;
if (g->is_callgraph) {
cur_nth = 0;
} else if (exit_edges == 1) {
cur_nth = -1;
}
if (outgoing && gv->idx == (dst->gnode)->idx) {
break;
}
if (!outgoing && gv->idx == (src->gnode)->idx) {
break;
}
nth++;
}
}
return cur_nth;
}
static int count_edges(const RAGraph *g, RANode *src, RANode *dst) {
return get_edge_number (g, src, dst, true);
}
static void backedge_info(RAGraph *g) {
int i, j, k;
int min, max;
int inedge = 0;
int outedge = 0;
if (g->n_layers > ST16_MAX) {
return;
}
int **arr = R_NEWS0 (int *, g->n_layers);
if (!arr) {
return;
}
for (i = 0; i < g->n_layers; i++) {
arr[i] = R_NEWS0 (int, 2);
if (!arr[i]) {
goto err;
}
}
for (i = 0; i < g->n_layers; i++) {
for (j = 0; j < g->layers[i].n_nodes; j++) {
RGraphNode *gt = g->layers[i].nodes[j];
if (!gt) {
continue;
}
RANode *t = (RANode *) gt->data;
if (!t) {
continue;
}
int tc = g->layout == 0 ? t->x : t->y;
int tl = g->layout == 0 ? t->w : t->h;
if (!j) {
arr[i][0] = tc;
arr[i][1] = tc + tl;
}
if (arr[i][0] > tc) {
arr[i][0] = tc;
}
if (arr[i][1] < tc + tl) {
arr[i][1] = tc + tl;
}
}
for (j = 0; j < g->layers[i].n_nodes; j++) {
RANode *a = get_anode (g->layers[i].nodes[j]);
if (!a || a->is_dummy) {
continue;
}
const RList *neighbours = r_graph_get_neighbours (g->graph, a->gnode);
RGraphNode *gb;
RANode *b;
RListIter *itm;
if (i == 0) {
inedge += r_list_length (r_graph_innodes (g->graph, a->gnode));
} else if (i == g->n_layers - 1) {
outedge += r_list_length (neighbours);
}
graph_foreach_anode (neighbours, itm, gb, b) {
if (b->layer > a->layer) {
continue;
}
int nth = count_edges (g, a, b);
int xinc = R_EDGES_X_INC + 2 * (nth + 1);
int ax = g->layout == 0 ? a->x + xinc : a->y + (a->h / 2) + nth;
int bx = g->layout == 0 ? b->x + xinc : b->y + (b->h / 2) + nth;
if (g->layout == 0 && nth == 0 && bx > ax) {
ax += 4;
}
min = arr[b->layer][0];
max = arr[b->layer][1];
for (k = b->layer; k <= a->layer; k++) {
if (min > arr[k][0]) {
min = arr[k][0];
}
if (max < arr[k][1]) {
max = arr[k][1];
}
}
int l = (ax - min) + (bx - min);
int r = (max - ax) + (max - bx);
for (k = b->layer; k <= a->layer; k++) {
if (r < l) {
arr[k][1] = max + 1;
} else {
arr[k][0] = min - 1;
}
}
AEdge *e = R_NEW0 (AEdge);
if (!e) {
free (arr);
return;
}
e->is_reversed = true;
e->from = a;
e->to = b;
e->x = r_list_new ();
e->y = r_list_new ();
if (r < l) {
r_list_append ((g->layout == 0 ? e->x : e->y), (void *) (size_t) (max + 1));
} else {
r_list_append ((g->layout == 0 ? e->x : e->y), (void *) (size_t) (min - 1));
}
r_list_append(g->edges, e);
}
}
}
//Assumption: layer layout is not changed w.r.t x-coordinate/y-coordinate for horizontal/vertical layout respectively.
if (inedge) {
RANode *n = (RANode *)g->layers[0].nodes[0]->data;
AEdge *e = R_NEW0 (AEdge);
if (!e) {
free (arr);
return;
}
e->is_reversed = true;
e->from = NULL;
e->to = NULL;
e->x = r_list_new ();
e->y = r_list_new ();
if (g->layout == 0) {
r_list_append (e->y, (void *) (size_t) (n->y - 1 - inedge));
} else {
r_list_append (e->x, (void *) (size_t) (n->x - 1 - inedge));
}
r_list_append (g->edges, e);
}
if (outedge) {
RANode *n = (RANode *)g->layers[g->n_layers - 1].nodes[0]->data;
AEdge *e = R_NEW0 (AEdge);
if (!e) {
free (arr);
return;
}
e->is_reversed = true;
e->from = NULL;
e->to = NULL;
e->x = r_list_new ();
e->y = r_list_new ();
if (g->layout == 0) {
r_list_append (e->y, (void *) (size_t) (n->y + g->layers[g->n_layers - 1].height + 2 + outedge));
} else {
r_list_append (e->x, (void *) (size_t) (n->x + g->layers[g->n_layers - 1].width + 2 + outedge));
}
r_list_append (g->edges, e);
}
err:
for (i = i - 1; i >= 0; i--) {
free (arr[i]);
}
free (arr);
return;
}
/* 1) trasform the graph into a DAG
* 2) partition the nodes in layers
* 3) split long edges that traverse multiple layers
* 4) reorder nodes in each layer to reduce the number of edge crossing
* 5) assign x and y coordinates to each node
* 6) restore the original graph, with long edges and cycles */
static void set_layout(RAGraph *g) {
int i, j, k;
r_list_free (g->edges);
g->edges = r_list_new ();
remove_cycles (g);
assign_layers (g);
create_dummy_nodes (g);
create_layers (g);
minimize_crossings (g);
if (r_cons_is_breaked ()) {
r_cons_break_end ();
return;
}
/* identify row height */
for (i = 0; i < g->n_layers; i++) {
int rh = 0;
int rw = 0;
for (j = 0; j < g->layers[i].n_nodes; j++) {
const RANode *n = get_anode (g->layers[i].nodes[j]);
if (n->h > rh) {
rh = n->h;
}
if (n->w > rw) {
rw = n->w;
}
}
g->layers[i].height = rh;
g->layers[i].width = rw;
}
for (i = 0; i < g->n_layers; i++) {
for (j = 0; j < g->layers[i].n_nodes; j++) {
RANode *a = (RANode *) g->layers[i].nodes[j]->data;
if (a->is_dummy) {
if (g->layout == 0) {
a->h = g->layers[i].height;
} else {
a->w = g->layers[i].width;
}
}
a->layer_height = g->layers[i].height;
a->layer_width = g->layers[i].width;
}
}
/* x-coordinate assignment: algorithm based on:
* A Fast Layout Algorithm for k-Level Graphs
* by C. Buchheim, M. Junger, S. Leipert */
place_dummies (g);
place_original (g);
/* IDEA: need to put this hack because of the way algorithm is implemented.
* I think backedges should be restored to their original state instead of
* converting them to longedges and adding dummy nodes. */
const RListIter *it;
const RGraphEdge *e;
r_list_foreach (g->back_edges, it, e) {
RANode *from = e->from? get_anode (e->from): NULL;
RANode *to = e->to? get_anode (e->to): NULL;
fix_back_edge_dummy_nodes (g, from, to);
r_agraph_del_edge (g, to, from);
r_agraph_add_edge_at (g, from, to, e->nth);
}
switch (g->layout) {
default:
case 0: // vertical layout
/* horizontal finalize x coordinate */
for (i = 0; i < g->n_layers; i++) {
for (j = 0; j < g->layers[i].n_nodes; j++) {
RANode *n = get_anode (g->layers[i].nodes[j]);
if (n) {
n->x -= n->w / 2;
if (g->is_tiny) {
n->x /= 8;
}
}
}
}
set_layer_gap (g);
/* vertical align */
for (i = 0; i < g->n_layers; i++) {
int tmp_y = 0;
tmp_y = g->layers[0].gap; //TODO: XXX: set properly
for (k = 1; k <= i; k++) {
tmp_y += g->layers[k-1].height + g->layers[k].gap + 3; //XXX: should be 4?
}
if (g->is_tiny) {
tmp_y = i;
}
for (j = 0; j < g->layers[i].n_nodes; j++) {
RANode *n = get_anode (g->layers[i].nodes[j]);
if (n) {
n->y = tmp_y;
}
}
}
break;
/* experimental */
case 1: // horizontal layout
/* vertical y coordinate */
for (i = 0; i < g->n_layers; i++) {
for (j = 0; j < g->layers[i].n_nodes; j++) {
RANode *n = get_anode (g->layers[i].nodes[j]);
n->y = 1;
for (k = 0; k < j; k++) {
RANode *m = get_anode (g->layers[i].nodes[k]);
n->y -= (m->h + VERTICAL_NODE_SPACING);
}
}
}
set_layer_gap (g);
/* horizontal align */
for (i = 0; i < g->n_layers; i++) {
int xval = 1 + g->layers[0].gap + 1;
for (k = 1; k <= i; k++) {
xval += g->layers[k-1].width + g->layers[k].gap + 3;
}
for (j = 0; j < g->layers[i].n_nodes; j++) {
RANode *n = get_anode (g->layers[i].nodes[j]);
n->x = xval;
}
}
break;
}
backedge_info (g);
/* free all temporary structures used during layout */
for (i = 0; i < g->n_layers; i++) {
free (g->layers[i].nodes);
}
free (g->layers);
r_list_free (g->long_edges);
r_list_free (g->back_edges);
r_cons_break_pop ();
}
static char *get_body(RCore *core, ut64 addr, int size, int opts) {
char *body;
RConfigHold *hc = r_config_hold_new (core->config);
if (!hc) {
return NULL;
}
r_config_hold_i (hc, "asm.lines", "asm.bytes",
"asm.cmt.col", "asm.marks", "asm.offset",
"asm.comments", "asm.cmt.right", "asm.bb.line", NULL);
const bool o_comments = r_config_get_i (core->config, "graph.comments");
const bool o_cmtright = r_config_get_i (core->config, "graph.cmtright");
const bool o_bytes = r_config_get_i (core->config, "graph.bytes");
const bool o_flags_in_bytes = r_config_get_i (core->config, "asm.flags.inbytes");
const bool o_graph_offset = r_config_get_i (core->config, "graph.offset");
int o_cursor = core->print->cur_enabled;
if (opts & BODY_COMMENTS) {
r_core_visual_toggle_decompiler_disasm (core, true, false);
char * res = r_core_cmd_strf (core, "pD %d @ 0x%08"PFMT64x, size, addr);
res = r_str_replace (res, "; ", "", true);
// res = r_str_replace (res, "\n", "(\n)", true);
r_str_trim (res);
res = r_str_trim_lines (res);
r_core_visual_toggle_decompiler_disasm (core, true, false);
r_config_hold_restore (hc);
r_config_hold_free (hc);
return res;
}
const char *cmd = (opts & BODY_SUMMARY)? "pds": "pD";
// configure options
r_config_set_i (core->config, "asm.bb.line", false);
r_config_set_i (core->config, "asm.lines", false);
r_config_set_i (core->config, "asm.cmt.col", 0);
r_config_set_i (core->config, "asm.marks", false);
r_config_set_i (core->config, "asm.cmt.right", (opts & BODY_SUMMARY) || o_cmtright);
r_config_set_i (core->config, "asm.comments", (opts & BODY_SUMMARY) || o_comments);
r_config_set_i (core->config, "asm.bytes",
(opts & (BODY_SUMMARY | BODY_OFFSETS)) || o_bytes || o_flags_in_bytes);
r_config_set_i (core->config, "asm.bb.middle", false);
core->print->cur_enabled = false;
if (opts & BODY_OFFSETS || opts & BODY_SUMMARY || o_graph_offset) {
r_config_set_i (core->config, "asm.offset", true);
} else {
r_config_set_i (core->config, "asm.offset", false);
}
bool html = r_config_get_i (core->config, "scr.html");
r_config_set_i (core->config, "scr.html", 0);
if (r_config_get_i (core->config, "graph.aeab")) {
body = r_core_cmd_strf (core, "%s 0x%08"PFMT64x, "aeab", addr);
} else {
body = r_core_cmd_strf (core, "%s %d @ 0x%08"PFMT64x, cmd, size, addr);
}
r_config_set_i (core->config, "scr.html", html);
// restore original options
core->print->cur_enabled = o_cursor;
r_config_hold_restore (hc);
r_config_hold_free (hc);
return body;
}
static char *get_bb_body(RCore *core, RAnalBlock *b, int opts, RAnalFunction *fcn, bool emu, ut64 saved_gp, ut8 *saved_arena) {
if (emu) {
core->anal->gp = saved_gp;
if (b->parent_reg_arena) {
r_reg_arena_poke (core->anal->reg, b->parent_reg_arena);
R_FREE (b->parent_reg_arena);
ut64 gp = r_reg_getv (core->anal->reg, "gp");
if (gp) {
core->anal->gp = gp;
}
} else {
r_reg_arena_poke (core->anal->reg, saved_arena);
}
}
if (b->parent_stackptr != INT_MAX) {
core->anal->stackptr = b->parent_stackptr;
}
char *body = get_body (core, b->addr, b->size, opts);
if (b->jump != UT64_MAX) {
if (b->jump > b->addr) {
RAnalBlock *jumpbb = r_anal_get_block_at (b->anal, b->jump);
if (jumpbb && r_list_contains (jumpbb->fcns, fcn)) {
if (emu && core->anal->last_disasm_reg != NULL && !jumpbb->parent_reg_arena) {
jumpbb->parent_reg_arena = r_reg_arena_dup (core->anal->reg, core->anal->last_disasm_reg);
}
if (jumpbb->parent_stackptr == INT_MAX) {
jumpbb->parent_stackptr = core->anal->stackptr + b->stackptr;
}
}
}
}
if (b->fail != UT64_MAX) {
if (b->fail > b->addr) {
RAnalBlock *failbb = r_anal_get_block_at (b->anal, b->fail);
if (failbb && r_list_contains (failbb->fcns, fcn)) {
if (emu && core->anal->last_disasm_reg != NULL && !failbb->parent_reg_arena) {
failbb->parent_reg_arena = r_reg_arena_dup (core->anal->reg, core->anal->last_disasm_reg);
}
if (failbb->parent_stackptr == INT_MAX) {
failbb->parent_stackptr = core->anal->stackptr + b->stackptr;
}
}
}
}
return body;
}
static int bbcmp(RAnalBlock *a, RAnalBlock *b) {
return a->addr - b->addr;
}
static void get_bbupdate(RAGraph *g, RCore *core, RAnalFunction *fcn) {
RAnalBlock *bb;
RListIter *iter;
bool emu = r_config_get_i (core->config, "asm.emu");
ut64 saved_gp = core->anal->gp;
ut8 *saved_arena = NULL;
int saved_stackptr = core->anal->stackptr;
char *shortcut = 0;
int shortcuts = 0;
core->keep_asmqjmps = false;
if (emu) {
saved_arena = r_reg_arena_peek (core->anal->reg);
}
if (!fcn) {
R_FREE (saved_arena);
return;
}
r_list_sort (fcn->bbs, (RListComparator) bbcmp);
shortcuts = r_config_get_i (core->config, "graph.nodejmps");
r_list_foreach (fcn->bbs, iter, bb) {
if (bb->addr == UT64_MAX) {
continue;
}
char *body = get_bb_body (core, bb, mode2opts (g), fcn, emu, saved_gp, saved_arena);
char *title = get_title (bb->addr);
if (shortcuts) {
shortcut = r_core_add_asmqjmp (core, bb->addr);
if (shortcut) {
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.shortcut", title), shortcut, 0);
free (shortcut);
}
}
RANode *node = r_agraph_get_node (g, title);
if (node) {
free (node->body);
node->body = body;
} else {
free (body);
}
free (title);
core->keep_asmqjmps = true;
}
if (emu) {
core->anal->gp = saved_gp;
if (saved_arena) {
r_reg_arena_poke (core->anal->reg, saved_arena);
R_FREE (saved_arena);
}
}
core->anal->stackptr = saved_stackptr;
}
static void fold_asm_trace(RCore *core, RAGraph *g) {
const RList *nodes = r_graph_get_nodes (g->graph);
RGraphNode *gn;
RListIter *it;
RANode *n;
RANode *curnode = get_anode (g->curnode);
graph_foreach_anode (nodes, it, gn, n) {
if (curnode == n) {
n->is_mini = false;
g->need_reload_nodes = true;
continue;
}
ut64 addr = r_num_get (NULL, n->title);
RDebugTracepoint *tp = r_debug_trace_get (core->dbg, addr);
n->is_mini = (tp == NULL);
}
g->need_update_dim = 1;
//agraph_refresh (r_cons_singleton ()->event_data);
}
static void delete_dup_edges (RAGraph *g) {
RListIter *it, *in_it, *in_it2, *in_it2_tmp;
RGraphNode *n, *a, *b;
r_list_foreach (g->graph->nodes, it, n) {
r_list_foreach (n->out_nodes, in_it, a) {
for (in_it2 = in_it->n; in_it2 && (b = in_it2->data, in_it2_tmp = in_it2->n, 1); in_it2 = in_it2_tmp) {
if (a->idx == b->idx) {
r_list_delete (n->out_nodes, in_it2);
r_list_delete_data (n->all_neighbours, b);
r_list_delete_data (b->in_nodes, n);
r_list_delete_data (b->all_neighbours, n);
g->graph->n_edges--;
}
}
}
}
}
static bool isbbfew(RAnalBlock *curbb, RAnalBlock *bb) {
if (bb->addr == curbb->addr || bb->addr == curbb->jump || bb->addr == curbb->fail) {
// do nothing
return true;
}
if (curbb->switch_op) {
RListIter *it;
RAnalCaseOp *cop;
r_list_foreach (curbb->switch_op->cases, it, cop) {
if (cop->addr == bb->addr) {
return true;
}
}
}
return false;
}
/* build the RGraph inside the RAGraph g, starting from the Basic Blocks */
static int get_bbnodes(RAGraph *g, RCore *core, RAnalFunction *fcn) {
RAnalBlock *bb;
RListIter *iter;
char *shortcut = NULL;
int shortcuts = 0;
bool emu = r_config_get_i (core->config, "asm.emu");
bool few = r_config_get_i (core->config, "graph.few");
int ret = false;
ut64 saved_gp = core->anal->gp;
ut8 *saved_arena = NULL;
int saved_stackptr = core->anal->stackptr;
core->keep_asmqjmps = false;
if (!fcn) {
return false;
}
if (emu) {
saved_arena = r_reg_arena_peek (core->anal->reg);
}
r_list_sort (fcn->bbs, (RListComparator) bbcmp);
RAnalBlock *curbb = NULL;
if (few) {
r_list_foreach (fcn->bbs, iter, bb) {
if (!curbb) {
curbb = bb;
}
if (r_anal_block_contains (bb, core->offset)) {
curbb = bb;
break;
}
}
}
core->keep_asmqjmps = false;
r_list_foreach (fcn->bbs, iter, bb) {
if (bb->addr == UT64_MAX) {
continue;
}
if (few && !isbbfew (curbb, bb)) {
continue;
}
char *body = get_bb_body (core, bb, mode2opts (g), fcn, emu, saved_gp, saved_arena);
char *title = get_title (bb->addr);
RANode *node = r_agraph_add_node (g, title, body);
shortcuts = g->is_interactive ? r_config_get_i (core->config, "graph.nodejmps") : false;
if (shortcuts) {
shortcut = r_core_add_asmqjmp (core, bb->addr);
if (shortcut) {
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.shortcut", title), shortcut, 0);
free (shortcut);
}
}
free (body);
free (title);
if (!node) {
goto cleanup;
}
core->keep_asmqjmps = true;
}
r_list_foreach (fcn->bbs, iter, bb) {
if (bb->addr == UT64_MAX) {
continue;
}
if (few && !isbbfew (curbb, bb)) {
continue;
}
char *title = get_title (bb->addr);
RANode *u = r_agraph_get_node (g, title);
RANode *v;
free (title);
if (bb->jump != UT64_MAX) {
title = get_title (bb->jump);
v = r_agraph_get_node (g, title);
free (title);
r_agraph_add_edge (g, u, v);
}
if (bb->fail != UT64_MAX) {
title = get_title (bb->fail);
v = r_agraph_get_node (g, title);
free (title);
r_agraph_add_edge (g, u, v);
}
if (bb->switch_op) {
RListIter *it;
RAnalCaseOp *cop;
r_list_foreach (bb->switch_op->cases, it, cop) {
title = get_title (cop->addr);
v = r_agraph_get_node (g, title);
free (title);
r_agraph_add_edge (g, u, v);
}
}
}
delete_dup_edges (g);
ret = true;
cleanup:
if (emu) {
core->anal->gp = saved_gp;
if (saved_arena) {
r_reg_arena_poke (core->anal->reg, saved_arena);
R_FREE (saved_arena);
}
}
core->anal->stackptr = saved_stackptr;
return ret;
}
/* build the RGraph inside the RAGraph g, starting from the Call Graph
* information */
static bool get_cgnodes(RAGraph *g, RCore *core, RAnalFunction *fcn) {
RAnalFunction *f = r_anal_get_fcn_in (core->anal, core->offset, 0);
RANode *node, *fcn_anode;
RListIter *iter;
RAnalRef *ref;
RList *refs;
if (!f) {
return false;
}
if (!fcn) {
fcn = f;
}
r_core_seek (core, f->addr, true);
char *title = get_title (fcn->addr);
fcn_anode = r_agraph_add_node (g, title, "");
free (title);
if (!fcn_anode) {
return false;
}
fcn_anode->x = 10;
fcn_anode->y = 3;
refs = r_anal_function_get_refs (fcn);
r_list_foreach (refs, iter, ref) {
title = get_title (ref->addr);
if (r_agraph_get_node (g, title) != NULL) {
continue;
}
free (title);
int size = 0;
RAnalBlock *bb = r_anal_bb_from_offset (core->anal, ref->addr);
if (bb) {
size = bb->size;
}
char *body = get_body (core, ref->addr, size, mode2opts (g));
title = get_title (ref->addr);
node = r_agraph_add_node (g, title, body);
if (!node) {
return false;
}
free (title);
free (body);
node->x = 10;
node->y = 10;
r_agraph_add_edge (g, fcn_anode, node);
}
r_list_free (refs);
return true;
}
static bool reload_nodes(RAGraph *g, RCore *core, RAnalFunction *fcn) {
const bool is_c = g->is_callgraph;
return is_c? get_cgnodes (g, core, fcn): get_bbnodes (g, core, fcn);
}
static void update_seek(RConsCanvas *can, RANode *n, int force) {
if (!n) {
return;
}
int x = n->x + can->sx;
int y = n->y + can->sy;
int w = can->w;
int h = can->h;
const bool doscroll = force || y < 0 || y + 5 > h || x + 5 > w || x + n->w + 5 < 0;
if (doscroll) {
if (n->w > w) { //too big for centering
can->sx = -n->x;
} else {
can->sx = -n->x - n->w / 2 + w / 2;
}
if (n->h > h) { //too big for centering
can->sy = -n->y;
} else {
can->sy = -n->y - n->h / 8 + h / 4;
}
}
}
static int is_near(const RANode *n, int x, int y, int is_next) {
if (is_next) {
return (n->y == y && n->x > x) || n->y > y;
}
return (n->y == y && n->x < x) || n->y < y;
}
/// XXX is wrong
static int is_near_h(const RANode *n, int x, int y, int is_next) {
if (is_next) {
return (n->x == x && n->y > y) || n->x > x;
}
return (n->x == x && n->y < y) || n->x < x;
}
static const RGraphNode *find_near_of(const RAGraph *g, const RGraphNode *cur, int is_next) {
/* XXX: it's slow */
const RList *nodes = r_graph_get_nodes (g->graph);
const RListIter *it;
const RGraphNode *gn, *resgn = NULL;
const RANode *n, *acur = cur? get_anode (cur): NULL;
const int default_v = is_next? INT_MIN: INT_MAX;
const int start_x = acur? acur->x: default_v;
const int start_y = acur? acur->y: default_v;
graph_foreach_anode (nodes, it, gn, n) {
// tab in horizontal layout is not correct, lets force vertical nextnode for now (g->layout == 0)
bool isNear = true
? is_near (n, start_x, start_y, is_next)
: is_near_h (n, start_x, start_y, is_next);
if (isNear) {
const RANode *resn;
if (!resgn) {
resgn = gn;
continue;
}
resn = get_anode (resgn);
if ((is_next && resn->y > n->y) || (!is_next && resn->y < n->y)) {
resgn = gn;
} else if ((is_next && resn->y == n->y && resn->x > n->x) ||
(!is_next && resn->y == n->y && resn->x < n->x)) {
resgn = gn;
}
}
}
if (!resgn && cur) {
resgn = find_near_of (g, NULL, is_next);
}
return resgn;
}
static void update_graph_sizes(RAGraph *g) {
RListIter *it;
RGraphNode *gk;
RANode *ak, *min_gn, *max_gn;
int max_x, max_y;
int delta_x, delta_y;
AEdge *e;
g->x = g->y = INT_MAX;
max_x = max_y = INT_MIN;
min_gn = max_gn = NULL;
graph_foreach_anode (r_graph_get_nodes (g->graph), it, gk, ak) {
const RList *nd = NULL;
int len;
if (ak->x < g->x) {
g->x = ak->x;
}
nd = r_graph_innodes (g->graph, gk);
len = nd ? r_list_length (nd) + 1 : 0;
if (ak->y - len < g->y) {
g->y = ak->y - len;
min_gn = ak;
}
if (ak->x + ak->w > max_x) {
max_x = ak->x + ak->w;
}
nd = NULL;
nd = r_graph_get_neighbours (g->graph, gk);
len = nd ? r_list_length (nd) + 2 : 0;
if (ak->y + ak->h + len > max_y) {
max_y = ak->y + ak->h + len;
max_gn = ak;
}
}
/* while calculating the graph size, take into account long edges */
r_list_foreach (g->edges, it, e) {
RListIter *kt;
void *vv;
int v;
if (r_cons_is_breaked ()) {
break;
}
r_list_foreach (e->x, kt, vv) {
v = (int) (size_t) vv;
if (v < g->x) {
g->x = v;
}
if (v + 1 > max_x) {
max_x = v + 1;
}
}
r_list_foreach (e->y, kt, vv) {
v = (int) (size_t) vv;
if (v < g->y) {
g->y = v;
}
if (v + 1 > max_y) {
max_y = v + 1;
}
}
}
r_cons_break_pop ();
if (min_gn) {
const RList *neigh = r_graph_innodes (g->graph, min_gn->gnode);
if (r_list_length (neigh) > 0) {
g->y--;
max_y++;
}
if (max_gn) {
const RList *neigh = r_graph_get_neighbours (g->graph, min_gn->gnode);
if (r_list_length (neigh) > 0) {
max_y++;
}
}
}
if (g->x != INT_MAX && g->y != INT_MAX) {
g->w = max_x - g->x;
if (g->title) {
size_t len = strlen (g->title);
if (len > INT_MAX) {
g->w = INT_MAX;
}
if ((int) len > g->w) {
g->w = len;
}
}
g->h = max_y - g->y;
} else {
g->x = g->y = 0;
g->w = g->h = 0;
}
sdb_num_set (g->db, "agraph.w", g->w, 0);
sdb_num_set (g->db, "agraph.h", g->h, 0);
/* delta_x, delta_y are needed to make every other x,y coordinates
* unsigned, so that we can use sdb_num_ API */
delta_x = g->x < 0? -g->x: 0;
delta_y = g->y < 0? -g->y: 0;
sdb_num_set (g->db, "agraph.delta_x", delta_x, 0);
sdb_num_set (g->db, "agraph.delta_y", delta_y, 0);
}
R_API void r_agraph_set_curnode(RAGraph *g, RANode *a) {
if (!a) {
return;
}
g->curnode = a->gnode;
if (a->title) {
sdb_set (g->db, "agraph.curnode", a->title, 0);
if (g->on_curnode_change) {
g->on_curnode_change (a, g->on_curnode_change_data);
}
}
}
static ut64 rebase(RAGraph *g, int v) {
return g->x < 0? -g->x + v: v;
}
static void agraph_set_layout(RAGraph *g) {
RListIter *it;
RGraphNode *n;
RANode *a;
set_layout (g);
update_graph_sizes (g);
graph_foreach_anode (r_graph_get_nodes (g->graph), it, n, a) {
if (a->is_dummy) {
continue;
}
const char *k;
k = sdb_fmt ("agraph.nodes.%s.x", a->title);
sdb_num_set (g->db, k, rebase (g, a->x), 0);
k = sdb_fmt ("agraph.nodes.%s.y", a->title);
sdb_num_set (g->db, k, rebase (g, a->y), 0);
k = sdb_fmt ("agraph.nodes.%s.w", a->title);
sdb_num_set (g->db, k, a->w, 0);
k = sdb_fmt ("agraph.nodes.%s.h", a->title);
sdb_num_set (g->db, k, a->h, 0);
}
}
/* set the willing to center the screen on a particular node */
static void agraph_update_seek(RAGraph *g, RANode *n, int force) {
g->update_seek_on = n;
g->force_update_seek = force;
}
static void agraph_print_node(const RAGraph *g, RANode *n) {
if (n->is_dummy) {
return;
}
const int cur = g->curnode && get_anode (g->curnode) == n;
const bool isMini = is_mini (g);
if (g->is_tiny) {
tiny_RANode_print (g, n, cur);
} else if (isMini || n->is_mini) {
mini_RANode_print (g, n, cur, isMini);
} else {
normal_RANode_print (g, n, cur);
}
}
static void agraph_print_nodes(const RAGraph *g) {
const RList *nodes = r_graph_get_nodes (g->graph);
RGraphNode *gn;
RListIter *it;
RANode *n;
graph_foreach_anode (nodes, it, gn, n) {
if (gn != g->curnode) {
agraph_print_node (g, n);
}
}
/* draw current node now to make it appear on top */
if (g->curnode) {
agraph_print_node (g, get_anode (g->curnode));
}
}
struct tmplayer {
int layer;
int edgectr;
int revedgectr;
int minx;
int maxx;
};
struct tmpbackedgeinfo {
int ax;
int ay;
int bx;
int by;
int edgectr;
int fromlayer;
int tolayer;
RCanvasLineStyle style;
};
int tmplayercmp (const void *a, const void *b) {
return ((struct tmplayer *)a)->layer > ((struct tmplayer *)b)->layer;
}
static void agraph_print_edges_simple(RAGraph *g) {
RCanvasLineStyle style = {0};
RANode *n, *n2;
RGraphNode *gn, *gn2;
RListIter *iter, *iter2;
const RList *nodes = r_graph_get_nodes (g->graph);
graph_foreach_anode (nodes, iter, gn, n) {
const RList *outnodes = n->gnode->out_nodes;
graph_foreach_anode (outnodes, iter2, gn2, n2) {
int sx = n->w / 2;
int sy = n->h;
int sx2 = n2->w / 2;
if (g->is_tiny) {
sx = 0;
sy = 0;
sx2 = 0;
}
// TODO: better alignments here
r_cons_canvas_line (g->can,
n->x + sx, n->y + sy,
n2->x + sx2, n2->y, &style);
if (n2->is_dummy) {
r_cons_canvas_line (g->can,
n2->x + sx2, n2->y - 1,
n2->x + sx2, n2->y + n2->h, &style);
}
}
}
}
static int first_x_cmp (const void *_a, const void *_b) {
RGraphNode *ga = (RGraphNode *)_a;
RGraphNode *gb = (RGraphNode *)_b;
RANode *a = (RANode*) ga->data;
RANode *b = (RANode*) gb->data;
if (b->y < a->y) {
return -1;
}
if (b->y > a->y) {
return 1;
}
if (a->x < b->x) {
return 1;
}
if (a->x > b->x) {
return -1;
}
return 0;
}
static void agraph_print_edges(RAGraph *g) {
if (!g->edgemode) {
return;
}
if (g->edgemode == 1) {
agraph_print_edges_simple (g);
return;
}
int out_nth, in_nth, bendpoint;
RListIter *itn, *itm, *ito;
RCanvasLineStyle style = {0};
const RList *nodes = r_graph_get_nodes (g->graph);
RGraphNode *ga;
RANode *a;
RList *lyr = r_list_new ();
RList *bckedges = r_list_new ();
struct tmplayer *tl, *tm;
graph_foreach_anode (nodes, itm, ga, a) {
const RGraphNode *gb;
RANode *b;
RList *neighbours = (RList *)r_graph_get_neighbours (g->graph, ga);
int ax, ay, bx, by, a_x_inc, b_x_inc;
tl = tm = NULL;
if (r_cons_is_breaked ()) {
break;
}
r_list_foreach (lyr, ito, tl) {
if (tl->layer == a->layer) {
tm = tl;
if (g->layout == 0) { //vertical layout
if (tm->minx > a->x) {
tm->minx = a->x;
}
if (tm->maxx < a->x + a->w) {
tm->maxx = a->x + a->w;
}
} else {
if (tm->minx > a->y) {
tm->minx = a->y;
}
if (tm->maxx < a->y + a->h) {
tm->maxx = a->y + a->h;
}
}
break;
}
}
if (!tm) {
tm = R_NEW0 (struct tmplayer);
if (tm) {
tm->layer = a->layer;
tm->edgectr = 0;
tm->revedgectr = 0;
if (g->layout == 0) { //vertical layout
tm->minx = a->x;
tm->maxx = a->x + a->w;
} else {
tm->minx = a->y;
tm->maxx = a->y + a->h;
}
r_list_add_sorted (lyr, tm, tmplayercmp);
}
}
bool many = r_list_length (neighbours) > 2;
if (many && !g->is_callgraph) {
ga->out_nodes->sorted = false;
r_list_sort (neighbours, first_x_cmp);
}
graph_foreach_anode (neighbours, itn, gb, b) {
out_nth = get_edge_number (g, a, b, true);
in_nth = get_edge_number (g, a, b, false);
bool parent_many = false;
if (a->is_dummy) {
RANode *in = (RANode *) (((RGraphNode *)r_list_first (ga->in_nodes))->data);
while (in && in->is_dummy) {
in = (RANode *) (((RGraphNode *)r_list_first ((in->gnode)->in_nodes))->data);
}
if (in && in->gnode) {
parent_many = r_list_length (in->gnode->out_nodes) > 2;
} else {
parent_many = false;
}
}
style.dot_style = DOT_STYLE_NORMAL;
if (many || parent_many) {
style.color = LINE_UNCJMP;
} else {
switch (out_nth) {
case 0:
style.color = LINE_TRUE;
style.dot_style = DOT_STYLE_CONDITIONAL;
break;
case 1:
style.color = LINE_FALSE;
style.dot_style = DOT_STYLE_CONDITIONAL;
break;
case -1:
style.color = LINE_UNCJMP;
break;
default:
style.color = LINE_NONE;
break;
}
}
switch (g->layout) {
case 0:
default:
style.symbol = (!g->hints || a->is_dummy) ? LINE_NOSYM_VERT : style.color;
if (a->y + a->h > b->y) {
style.dot_style = DOT_STYLE_BACKEDGE;
}
a_x_inc = R_EDGES_X_INC + 2 * (out_nth + 1);
b_x_inc = R_EDGES_X_INC + 2 * (in_nth + 1);
bx = b->is_dummy ? b->x : (b->x + b_x_inc);
ay = a->y + a->h;
by = b->y - 1;
if (many && !g->is_callgraph) {
int t = R_EDGES_X_INC + 2 * (neighbours->length + 1);
ax = a->is_dummy ? a->x : (a->x + a->w/2 + (t/2 - a_x_inc));
bendpoint = bx < ax ? neighbours->length - out_nth : out_nth;
} else {
ax = a->is_dummy ? a->x : (a->x + a_x_inc);
bendpoint = tm->edgectr;
}
if (!a->is_dummy && itn == neighbours->head && out_nth == 0 && bx > ax) {
ax += (many && !g->is_callgraph) ? 0 : 4;
}
if (a->h < a->layer_height) {
r_cons_canvas_line (g->can, ax, ay, ax, ay + a->layer_height - a->h, &style);
ay = a->y + a->layer_height;
style.symbol = LINE_NOSYM_VERT;
}
if (by >= ay) {
r_cons_canvas_line_square_defined (g->can, ax, ay, bx, by, &style, bendpoint, true);
} else {
struct tmpbackedgeinfo *tmp = calloc (1, sizeof (struct tmpbackedgeinfo));
tmp->ax = ax;
tmp->bx = bx;
tmp->ay = ay;
tmp->by = by;
tmp->edgectr = bendpoint;
tmp->fromlayer = a->layer;
tmp->tolayer = b->layer;
tmp->style = style;
r_list_append (bckedges, tmp);
}
if (b->is_dummy) {
style.symbol = LINE_NOSYM_VERT;
r_cons_canvas_line (g->can, bx, by, bx, b->y + b->h, &style);
}
if (b->x != a->x || b->layer <= a->layer || (!a->is_dummy && b->is_dummy) || (a->is_dummy && !b->is_dummy)) {
if (tm) {
tm->edgectr++;
}
}
break;
case 1:
style.symbol = (!g->hints || a->is_dummy) ? LINE_NOSYM_HORIZ : style.color;
if (a->x + a->w > b->x) {
style.dot_style = DOT_STYLE_BACKEDGE;
}
ax = a->x;
if (g->zoom > 0) {
ax += a->w;
} else {
ax ++;
}
ay = a->y;
if (!a->is_dummy && g->zoom > 0) {
ay += R_EDGES_X_INC + out_nth;
}
bx = b->x - 1;
by = b->y;
if (!b->is_dummy && g->zoom > 0) {
by += R_EDGES_X_INC + out_nth;
}
if (a->w < a->layer_width) {
r_cons_canvas_line_square_defined (g->can, ax, ay, a->x + a->layer_width, ay, &style, 0, false);
ax = a->x;
if (g->zoom > 1) {
ax += a->layer_width;
} else {
ax += 1;
}
style.symbol = LINE_NOSYM_HORIZ;
}
if (bx >= ax) {
r_cons_canvas_line_square_defined (g->can, ax, ay, bx, by, &style, tm->edgectr, false);
} else {
struct tmpbackedgeinfo *tmp = calloc (1, sizeof (struct tmpbackedgeinfo));
if (tmp) {
tmp->ax = ax;
tmp->bx = bx;
tmp->ay = ay;
tmp->by = by;
tmp->edgectr = tm->edgectr;
tmp->fromlayer = a->layer;
tmp->tolayer = b->layer;
tmp->style = style;
r_list_append (bckedges, tmp);
}
}
if (b->is_dummy) {
style.symbol = LINE_NOSYM_HORIZ;
r_cons_canvas_line_square_defined (g->can, bx, by, bx + b->layer_width, by, &style, 0, false);
}
if ((b->y == a->y && b->h != a->h) || b->y != a->y || b->layer <= a->layer || (!a->is_dummy && b->is_dummy) || (a->is_dummy && !b->is_dummy)) {
tm->edgectr += 1;
}
break;
}
}
}
struct tmpbackedgeinfo *temp;
r_list_foreach (bckedges, itm, temp) {
int leftlen, rightlen;
int minx = 0, maxx = 0;
struct tmplayer *tt = NULL;
tl = r_list_get_n (lyr, temp->fromlayer);
if (r_cons_is_breaked ()) {
break;
}
r_list_foreach (lyr, ito, tl) {
if (tl->layer <= temp->tolayer) {
tt = tl;
minx = tl->minx;
maxx = tl->maxx;
continue;
}
minx = minx < tl->minx ? minx : tl->minx;
maxx = maxx > tl->maxx ? maxx : tl->maxx;
if (tl->layer >= temp->fromlayer) {
break;
}
}
if (tt) {
tt->revedgectr += 1;
}
if (g->layout == 0) {
leftlen = (temp->ax - minx) + (temp->bx - minx);
rightlen = (maxx - temp->ax) + (maxx - temp->bx);
} else {
leftlen = (temp->ay - minx) + (temp->by - minx);
rightlen = (maxx - temp->ay) + (maxx - temp->by);
}
if (tt) {
int arg = (rightlen < leftlen)? maxx + 1: minx - 1;
r_cons_canvas_line_back_edge (g->can, temp->ax, temp->ay, temp->bx, temp->by, &(temp->style), temp->edgectr, arg, tt->revedgectr, !g->layout);
}
r_list_foreach (lyr, ito, tl) {
if (tl->layer < temp->tolayer) {
continue;
}
if (rightlen < leftlen) {
tl->maxx = maxx + 1;
} else {
tl->minx = minx - 1;
}
if (tl->layer >= temp->fromlayer) {
break;
}
}
}
r_list_foreach (lyr, ito, tl) {
free (tl);
}
r_list_foreach (bckedges, ito, tl) {
free (tl);
}
r_list_free (lyr);
r_list_free (bckedges);
r_cons_break_pop ();
}
static void agraph_toggle_callgraph(RAGraph *g) {
g->is_callgraph = !g->is_callgraph;
g->need_reload_nodes = true;
g->force_update_seek = true;
}
static void agraph_set_zoom(RAGraph *g, int v) {
if (v >= -10) {
g->is_tiny = false;
if (v == 0) {
g->mode = R_AGRAPH_MODE_MINI;
} else if (v < 0) {
g->mode = R_AGRAPH_MODE_TINY;
g->is_tiny = true;
} else {
g->mode = R_AGRAPH_MODE_NORMAL;
}
const int K = 920;
if (g->zoom < v) {
g->can->sy = (g->can->sy * K) / 1000;
}
else {
g->can->sy = (g->can->sy * 1000) / K;
}
g->zoom = v;
g->need_update_dim = true;
g->need_set_layout = true;
}
}
/* reload all the info in the nodes, depending on the type of the graph
* (callgraph, CFG, etc.), set the default layout for these nodes and center
* the screen on the selected one */
static bool agraph_reload_nodes(RAGraph *g, RCore *core, RAnalFunction *fcn) {
r_agraph_reset (g);
return reload_nodes (g, core, fcn);
}
static void follow_nth(RAGraph *g, int nth) {
const RGraphNode *cn = r_graph_nth_neighbour (g->graph, g->curnode, nth);
RANode *a = get_anode (cn);
while (a && a->is_dummy) {
cn = r_graph_nth_neighbour (g->graph, a->gnode, 0);
a = get_anode (cn);
}
if (a) {
r_agraph_set_curnode (g, a);
}
}
static void move_current_node(RAGraph *g, int xdiff, int ydiff) {
RANode *n = get_anode (g->curnode);
if (n) {
if (is_tiny (g)) {
xdiff = NORMALIZE_MOV (xdiff);
ydiff = NORMALIZE_MOV (ydiff);
}
n->x += xdiff;
n->y += ydiff;
}
}
#if GRAPH_MERGE_FEATURE
#define K_NEIGHBOURS(x) (sdb_fmt ("agraph.nodes.%s.neighbours", x->title))
static void agraph_merge_child(RAGraph *g, int idx) {
const RGraphNode *nn = r_graph_nth_neighbour (g->graph, g->curnode, idx);
const RGraphNode *cn = g->curnode;
if (cn && nn) {
RANode *ann = get_anode (nn);
RANode *acn = get_anode (cn);
acn->body = r_str_append (acn->body, ann->title);
acn->body = r_str_append (acn->body, "\n");
acn->body = r_str_append (acn->body, ann->body);
/* remove node from the graph */
acn->h += ann->h - 3;
free (ann->body);
// TODO: do not merge nodes if those have edges targeting them
// TODO: Add children neighbours to current one
// nn->body
// r_agraph_set_curnode (g, get_anode (cn));
// agraph_refresh (grd);
// r_agraph_add_edge (g, from, to);
char *neis = sdb_get (g->db, K_NEIGHBOURS (ann), 0);
if (neis) {
sdb_set_owned (g->db, K_NEIGHBOURS (ann), neis, 0);
r_agraph_del_node (g, ann->title);
agraph_print_nodes (g);
agraph_print_edges (g);
}
}
// agraph_update_seek (g, get_anode (g->curnode), false);
}
#endif
static void agraph_toggle_tiny (RAGraph *g) {
g->is_tiny = !g->is_tiny;
g->need_update_dim = 1;
agraph_refresh (r_cons_singleton ()->event_data);
agraph_set_layout ((RAGraph *) g);
//remove_dummy_nodes (g);
}
static void agraph_toggle_mini(RAGraph *g) {
RANode *n = get_anode (g->curnode);
if (n) {
n->is_mini = !n->is_mini;
}
g->need_update_dim = 1;
agraph_refresh (r_cons_singleton ()->event_data);
agraph_set_layout ((RAGraph *) g);
}
static void agraph_follow_innodes(RAGraph *g, bool in) {
int count = 0;
RListIter *iter;
RANode *an = get_anode (g->curnode);
if (!an) {
return;
}
RGraphNode *gn = an->gnode;
const RList *list = in? an->gnode->in_nodes: an->gnode->out_nodes;
int nth = -1;
if (r_list_length (list) == 0) {
return;
}
r_cons_gotoxy (0, 2);
r_cons_printf (in? "Input nodes:\n": "Output nodes:\n");
RList *options = r_list_newf (NULL);
RList *gnodes = in? an->gnode->in_nodes: an->gnode->out_nodes;
r_list_foreach (gnodes, iter, gn) {
RANode *an = get_anode (gn);
RGraphNode *gnn = agraph_get_title (g, an, in);
if (gnn) {
RANode *nnn = gnn->data;
RANode *o;
RListIter *iter2;
// avoid dupes
r_list_foreach (options, iter2, o) {
if (!strcmp (o->title, nnn->title)) {
continue;
}
}
r_cons_printf ("%d %s\n", count, nnn->title);
r_list_append (options, nnn);
count++;
}
}
r_cons_flush ();
if (r_list_length (list) == 1) {
nth = 0;
} else if (r_list_length (list) < 10) {
// just 1 key
char ch = r_cons_readchar ();
if (ch >= '0' && ch <= '9') {
nth = ch - '0';
}
} else {
r_cons_show_cursor (true);
r_cons_enable_mouse (false);
char *nth_string = r_cons_input ("index> ");
nth = atoi (nth_string);
if (nth == 0 && *nth_string != '0') {
nth = -1;
}
free (nth_string);
}
if (nth != -1) {
RANode *selected_node = r_list_get_n (options, nth);
r_agraph_set_curnode (g, selected_node);
}
r_list_free (options);
agraph_update_seek (g, get_anode (g->curnode), false);
}
static void agraph_follow_true(RAGraph *g) {
follow_nth (g, 0);
agraph_update_seek (g, get_anode (g->curnode), false);
}
static void agraph_follow_false(RAGraph *g) {
follow_nth (g, 1);
agraph_update_seek (g, get_anode (g->curnode), false);
}
/* seek the next node in visual order */
static void agraph_next_node(RAGraph *g) {
RANode *a = get_anode (find_near_of (g, g->curnode, true));
while (a && a->is_dummy) {
a = get_anode (find_near_of (g, a->gnode, true));
}
r_agraph_set_curnode (g, a);
agraph_update_seek (g, get_anode (g->curnode), false);
}
/* seek the previous node in visual order */
static void agraph_prev_node(RAGraph *g) {
RANode *a = get_anode (find_near_of (g, g->curnode, false));
while (a && a->is_dummy) {
a = get_anode (find_near_of (g, a->gnode, false));
}
r_agraph_set_curnode (g, a);
agraph_update_seek (g, get_anode (g->curnode), false);
}
static void agraph_update_title(RCore *core, RAGraph *g, RAnalFunction *fcn) {
RANode *a = get_anode (g->curnode);
char *sig = r_core_cmd_str (core, "afcf");
char *new_title = r_str_newf (
"%s[0x%08"PFMT64x "]> %s # %s ",
graphCursor? "(cursor)": "",
fcn->addr, a? a->title: "", sig);
r_agraph_set_title (g, new_title);
free (new_title);
free (sig);
}
/* look for any change in the state of the graph
* and update what's necessary */
static bool check_changes(RAGraph *g, int is_interactive, RCore *core, RAnalFunction *fcn) {
int oldpos[2] = {
0, 0
};
if (g->need_reload_nodes && core) {
if (!g->update_seek_on && !g->force_update_seek) {
// save scroll here
oldpos[0] = g->can->sx;
oldpos[1] = g->can->sy;
}
if (!agraph_reload_nodes (g, core, fcn)) {
return false;
}
}
if (fcn) {
agraph_update_title (core, g, fcn);
}
if (core && core->config) {
if (r_config_get_i (core->config, "graph.trace")) {
// fold all bbs not traced
fold_asm_trace (core, g);
}
}
if (g->need_update_dim || g->need_reload_nodes || !is_interactive) {
update_node_dimension (g->graph, is_mini (g), g->zoom, g->edgemode, g->is_callgraph, g->layout);
}
if (g->need_set_layout || g->need_reload_nodes || !is_interactive) {
agraph_set_layout (g);
}
if (core) {
ut64 off = r_anal_get_bbaddr (core->anal, core->offset);
if (off != UT64_MAX) {
char *title = get_title (off);
RANode *cur_anode = get_anode (g->curnode);
if (fcn && ((is_interactive && !cur_anode) || (cur_anode && strcmp (cur_anode->title, title)))) {
g->update_seek_on = r_agraph_get_node (g, title);
if (g->update_seek_on) {
r_agraph_set_curnode (g, g->update_seek_on);
g->force_update_seek = true;
}
}
free (title);
}
g->can->color = r_config_get_i (core->config, "scr.color");
g->hints = r_config_get_i (core->config, "graph.hints");
}
if (g->update_seek_on || g->force_update_seek) {
RANode *n = g->update_seek_on;
if (!n && g->curnode) {
n = get_anode (g->curnode);
}
if (n) {
update_seek (g->can, n, g->force_update_seek);
}
}
if (oldpos[0] || oldpos[1]) {
g->can->sx = oldpos[0];
g->can->sy = oldpos[1];
}
g->need_reload_nodes = false;
g->need_update_dim = false;
g->need_set_layout = false;
g->update_seek_on = NULL;
g->force_update_seek = false;
return true;
}
static int agraph_print(RAGraph *g, int is_interactive, RCore *core, RAnalFunction *fcn) {
int h, w = r_cons_get_size (&h);
bool ret = check_changes (g, is_interactive, core, fcn);
if (!ret) {
return false;
}
if (is_interactive) {
r_cons_clear00 ();
} else {
/* TODO: limit to screen size when the output is not redirected to file */
update_graph_sizes (g);
}
h = is_interactive? h: g->h + 1;
w = is_interactive? w: g->w + 2;
if (!r_cons_canvas_resize (g->can, w, h)) {
return false;
}
// r_cons_canvas_clear (g->can);
if (!is_interactive) {
g->can->sx = -g->x;
g->can->sy = -g->y - 1;
}
if (g->is_dis) {
(void) G (-g->can->sx + 1, -g->can->sy + 2);
int scr_utf8 = r_config_get_i (core->config, "scr.utf8");
int asm_bytes = r_config_get_i (core->config, "asm.bytes");
int asm_cmt_right = r_config_get_i (core->config, "asm.cmt.right");
r_config_set_i (core->config, "scr.utf8", 0);
r_config_set_i (core->config, "asm.bytes", 0);
r_config_set_i (core->config, "asm.cmt.right", 0);
char *str = r_core_cmd_str (core, "pd $r");
if (str) {
W (str);
free (str);
}
r_config_set_i (core->config, "scr.utf8", scr_utf8);
r_config_set_i (core->config, "asm.bytes", asm_bytes);
r_config_set_i (core->config, "asm.cmt.right", asm_cmt_right);
}
if (g->title && *g->title) {
g->can->sy ++;
}
agraph_print_edges (g);
agraph_print_nodes (g);
if (g->title && *g->title) {
g->can->sy --;
}
/* print the graph title */
(void) G (-g->can->sx, -g->can->sy);
if (!g->is_tiny) {
W (g->title);
}
if (is_interactive && g->title) {
int title_len = strlen (g->title);
r_cons_canvas_fill (g->can, -g->can->sx + title_len, -g->can->sy,
w - title_len, 1, ' ');
}
r_cons_canvas_print_region (g->can);
if (is_interactive) {
r_cons_newline ();
const char *cmdv = r_config_get (core->config, "cmd.gprompt");
bool mustFlush = false;
r_cons_visual_flush ();
if (cmdv && *cmdv) {
r_cons_gotoxy (0, 2);
r_cons_strcat (Color_RESET);
r_core_cmd0 (core, cmdv);
mustFlush = true;
}
if (core && core->scr_gadgets) {
r_core_cmd0 (core, "pg");
}
if (mustFlush) {
r_cons_flush ();
}
}
return true;
}
static void check_function_modified(RCore *core, RAnalFunction *fcn) {
if (r_anal_function_was_modified (fcn)) {
if (r_config_get_i (core->config, "anal.detectwrites")
|| r_cons_yesno ('y', "Function was modified. Reanalyze? (Y/n)")) {
r_anal_function_update_analysis (fcn);
}
}
}
static int agraph_refresh(struct agraph_refresh_data *grd) {
if (!grd) {
return 0;
}
r_cons_singleton ()->event_data = grd;
RCore *core = grd->core;
RAGraph *g = grd->g;
RAnalFunction *f = NULL;
RAnalFunction **fcn = grd->fcn;
if (!fcn) {
return agraph_print (g, grd->fs, core, NULL);
}
// allow to change the current function during debugging
if (g->is_instep && r_config_get_i (core->config, "cfg.debug")) {
// seek only when the graph node changes
const char *pc = r_reg_get_name (core->dbg->reg, R_REG_NAME_PC);
RRegItem *r = r_reg_get (core->dbg->reg, pc, -1);
ut64 addr = r_reg_get_value (core->dbg->reg, r);
RANode *acur = get_anode (g->curnode);
addr = r_anal_get_bbaddr (core->anal, addr);
char *title = get_title (addr);
if (!acur || strcmp (acur->title, title)) {
r_core_cmd0 (core, "sr PC");
}
free (title);
g->is_instep = false;
}
if (grd->follow_offset) {
if (r_io_is_valid_offset (core->io, core->offset, 0)) {
f = r_anal_get_fcn_in (core->anal, core->offset, 0);
if (!f) {
if (!g->is_dis) {
if (!r_cons_yesno ('y', "\rNo function at 0x%08"PFMT64x". Define it here (Y/n)? ", core->offset)) {
return 0;
}
r_core_cmd0 (core, "af");
}
f = r_anal_get_fcn_in (core->anal, core->offset, 0);
g->need_reload_nodes = true;
}
if (f && fcn && f != *fcn) {
*fcn = f;
check_function_modified (core, *fcn);
g->need_reload_nodes = true;
g->force_update_seek = true;
}
} else {
// TODO: maybe go back to avoid seeking from graph view to an scary place?
r_cons_message ("This is not a valid offset\n");
r_cons_flush ();
}
}
int res = agraph_print (g, grd->fs, core, *fcn);
if (r_config_get_i (core->config, "scr.scrollbar")) {
r_core_print_scrollbar (core);
}
return res;
}
static void agraph_refresh_oneshot(struct agraph_refresh_data *grd) {
r_core_task_enqueue_oneshot (&grd->core->tasks, (RCoreTaskOneShot) agraph_refresh, grd);
}
static void agraph_set_need_reload_nodes(struct agraph_refresh_data *grd) {
grd->g->need_reload_nodes = true;
}
static void agraph_toggle_speed(RAGraph *g, RCore *core) {
const int alt = r_config_get_i (core->config, "graph.scroll");
g->movspeed = g->movspeed == DEFAULT_SPEED? alt: DEFAULT_SPEED;
}
static void agraph_init(RAGraph *g) {
g->is_callgraph = false;
g->is_instep = false;
g->need_reload_nodes = true;
g->show_node_titles = true;
g->show_node_body = true;
g->force_update_seek = true;
g->graph = r_graph_new ();
g->nodes = sdb_new0 ();
g->edgemode = 2;
g->zoom = ZOOM_DEFAULT;
g->hints = 1;
g->movspeed = DEFAULT_SPEED;
g->db = sdb_new0 ();
r_vector_init (&g->ghits.word_list, sizeof (struct r_agraph_location), NULL, NULL);
}
static void free_anode(RANode *n) {
free (n->title);
free (n->body);
free (n);
}
static void graphNodeMove(RAGraph *g, int dir, int speed) {
int delta = (dir == 'k')? -1: 1;
if (dir == 'H') {
return;
}
if (dir == 'h' || dir == 'l') {
// horizontal scroll
if (is_mini (g)) {
discroll = 0;
} else {
int delta = (dir == 'l')? 1: -1;
move_current_node (g, speed * delta, 0);
}
return;
}
RCore *core = NULL;
// vertical scroll
if (is_mini (g)) {
discroll += (delta * speed);
} else if (g->is_dis) {
r_core_cmdf (core, "so %d", (delta * 4) * speed);
} else {
move_current_node (g, 0, delta * speed);
}
}
static void agraph_free_nodes(const RAGraph *g) {
RListIter *it;
RGraphNode *n;
RANode *a;
graph_foreach_anode (r_graph_get_nodes (g->graph), it, n, a) {
free_anode (a);
}
sdb_free (g->nodes);
}
static void sdb_set_enc(Sdb *db, const char *key, const char *v, ut32 cas) {
char *estr = sdb_encode ((const void *) v, -1);
sdb_set (db, key, estr, cas);
free (estr);
}
static void agraph_sdb_init(const RAGraph *g) {
sdb_bool_set (g->db, "agraph.is_callgraph", g->is_callgraph, 0);
RCons *cons = r_cons_singleton ();
sdb_set_enc (g->db, "agraph.color_box", cons->context->pal.graph_box, 0);
sdb_set_enc (g->db, "agraph.color_box2", cons->context->pal.graph_box2, 0);
sdb_set_enc (g->db, "agraph.color_box3", cons->context->pal.graph_box3, 0);
sdb_set_enc (g->db, "agraph.color_true", cons->context->pal.graph_true, 0);
sdb_set_enc (g->db, "agraph.color_false", cons->context->pal.graph_false, 0);
}
R_API Sdb *r_agraph_get_sdb(RAGraph *g) {
g->need_update_dim = true;
g->need_set_layout = true;
(void)check_changes (g, false, NULL, NULL);
//remove_dummy_nodes (g);
return g->db;
}
R_API void r_agraph_print(RAGraph *g) {
agraph_print (g, false, NULL, NULL);
if (g->graph->n_nodes > 0) {
r_cons_newline ();
}
}
R_API void r_agraph_print_json(RAGraph *g, PJ *pj) {
RList *nodes = g->graph->nodes, *neighbours = NULL;
RListIter *it, *itt;
RGraphNode *node = NULL, *neighbour = NULL;
if (!pj) {
return;
}
r_list_foreach (nodes, it, node) {
RANode *anode = (RANode *) node->data;
char *label = strdup (anode->body);
pj_o (pj);
pj_ki (pj, "id", anode->gnode->idx);
pj_ks (pj, "title", anode->title);
pj_ks (pj, "body", label);
pj_k (pj, "out_nodes");
pj_a (pj);
neighbours = anode->gnode->out_nodes;
r_list_foreach (neighbours, itt, neighbour) {
pj_i (pj, neighbour->idx);
}
pj_end (pj);
pj_end (pj);
free (label);
}
}
R_API void r_agraph_set_title(RAGraph *g, const char *title) {
free (g->title);
g->title = title? strdup (title): NULL;
sdb_set (g->db, "agraph.title", g->title, 0);
}
R_API RANode *r_agraph_add_node_with_color(const RAGraph *g, const char *title, const char *body, int color) {
RANode *res = r_agraph_get_node (g, title);
if (res) {
return res;
}
res = R_NEW0 (RANode);
if (!res) {
return NULL;
}
res->title = title? r_str_trunc_ellipsis (title, 255) : strdup ("");
res->body = body? strdup (body): strdup ("");
res->layer = -1;
res->pos_in_layer = -1;
res->is_dummy = false;
res->is_reversed = false;
res->klass = -1;
res->difftype = color;
res->gnode = r_graph_add_node (g->graph, res);
sdb_num_set (g->nodes, res->title, (ut64) (size_t) res, 0);
if (res->title) {
char *s, *estr, *b;
size_t len;
sdb_array_add (g->db, "agraph.nodes", res->title, 0);
b = strdup (res->body);
len = strlen (b);
if (len > 0 && b[len - 1] == '\n') {
b[len - 1] = '\0';
}
estr = sdb_encode ((const void *) b, -1);
//s = sdb_fmt ("base64:%s", estr);
s = r_str_newf ("base64:%s", estr);
free (estr);
free (b);
sdb_set_owned (g->db, sdb_fmt ("agraph.nodes.%s.body", res->title), s, 0);
}
return res;
}
R_API RANode *r_agraph_add_node(const RAGraph *g, const char *title, const char *body) {
return r_agraph_add_node_with_color(g, title, body, -1);
}
R_API bool r_agraph_del_node(const RAGraph *g, const char *title) {
char *title_trunc = r_str_trunc_ellipsis (title, 255);
RANode *an, *res = r_agraph_get_node (g, title_trunc);
free (title_trunc);
RGraphNode *gn;
RListIter *it;
if (!res) {
return false;
}
sdb_set (g->nodes, res->title, NULL, 0);
sdb_array_remove (g->db, "agraph.nodes", res->title, 0);
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s", res->title), NULL, 0);
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.body", res->title), 0, 0);
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.x", res->title), NULL, 0);
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.y", res->title), NULL, 0);
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.w", res->title), NULL, 0);
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.h", res->title), NULL, 0);
sdb_set (g->db, sdb_fmt ("agraph.nodes.%s.neighbours", res->title), NULL, 0);
const RList *innodes = r_graph_innodes (g->graph, res->gnode);
graph_foreach_anode (innodes, it, gn, an) {
const char *key = sdb_fmt ("agraph.nodes.%s.neighbours", an->title);
sdb_array_remove (g->db, key, res->title, 0);
}
r_graph_del_node (g->graph, res->gnode);
res->gnode = NULL;
free_anode (res);
return true;
}
static int user_node_cb(struct g_cb *user, const char *k UNUSED, const char *v) {
RANodeCallback cb = user->node_cb;
void *user_data = user->data;
RANode *n = (RANode *) (size_t) sdb_atoi (v);
if (n) {
cb (n, user_data);
}
return 1;
}
static int user_edge_cb(struct g_cb *user, const char *k UNUSED, const char *v) {
RAEdgeCallback cb = user->edge_cb;
RAGraph *g = user->graph;
void *user_data = user->data;
RANode *an, *n = (RANode *) (size_t) sdb_atoi (v);
if (!n) {
return 0;
}
const RList *neigh = r_graph_get_neighbours (g->graph, n->gnode);
RListIter *it;
RGraphNode *gn;
graph_foreach_anode (neigh, it, gn, an) {
cb (n, an, user_data);
}
return 1;
}
R_API void r_agraph_foreach(RAGraph *g, RANodeCallback cb, void *user) {
struct g_cb u = {
.node_cb = cb,
.data = user
};
sdb_foreach (g->nodes, (SdbForeachCallback) user_node_cb, &u);
}
R_API void r_agraph_foreach_edge(RAGraph *g, RAEdgeCallback cb, void *user) {
struct g_cb u = {
.graph = g,
.edge_cb = cb,
.data = user
};
sdb_foreach (g->nodes, (SdbForeachCallback) user_edge_cb, &u);
}
R_API RANode *r_agraph_get_first_node(const RAGraph *g) {
const RList *l = r_graph_get_nodes (g->graph);
RGraphNode *rgn = r_list_first (l);
return get_anode (rgn);
}
R_API RANode *r_agraph_get_node(const RAGraph *g, const char *title) {
char *title_trunc = title ? r_str_trunc_ellipsis (title, 255) : NULL;
RANode *node = (RANode *) (size_t) sdb_num_get (g->nodes, title_trunc, NULL);
free (title_trunc);
return node;
}
R_API void r_agraph_add_edge(const RAGraph *g, RANode *a, RANode *b) {
r_return_if_fail (g && a && b);
r_graph_add_edge (g->graph, a->gnode, b->gnode);
if (a->title && b->title) {
char *k = sdb_fmt ("agraph.nodes.%s.neighbours", a->title);
sdb_array_add (g->db, k, b->title, 0);
}
}
R_API void r_agraph_add_edge_at(const RAGraph *g, RANode *a, RANode *b, int nth) {
r_return_if_fail (g && a && b);
if (a->title && b->title) {
char *k = sdb_fmt ("agraph.nodes.%s.neighbours", a->title);
sdb_array_insert (g->db, k, nth, b->title, 0);
}
r_graph_add_edge_at (g->graph, a->gnode, b->gnode, nth);
}
R_API void r_agraph_del_edge(const RAGraph *g, RANode *a, RANode *b) {
r_return_if_fail (g && a && b);
if (a->title && b->title) {
const char *k = sdb_fmt ("agraph.nodes.%s.neighbours", a->title);
sdb_array_remove (g->db, k, b->title, 0);
}
r_graph_del_edge (g->graph, a->gnode, b->gnode);
}
R_API void r_agraph_reset(RAGraph *g) {
agraph_free_nodes (g);
r_graph_reset (g->graph);
r_agraph_set_title (g, NULL);
sdb_reset (g->db);
if (g->edges) {
r_list_purge (g->edges);
}
g->nodes = sdb_new0 ();
g->update_seek_on = NULL;
g->need_reload_nodes = false;
g->need_set_layout = true;
g->need_update_dim = true;
g->x = g->y = g->w = g->h = 0;
agraph_sdb_init (g);
g->curnode = NULL;
}
R_API void r_agraph_free(RAGraph *g) {
if (g) {
agraph_free_nodes (g);
r_graph_free (g->graph);
r_list_free (g->edges);
r_agraph_set_title (g, NULL);
sdb_free (g->db);
r_cons_canvas_free (g->can);
free (g);
}
}
R_API RAGraph *r_agraph_new(RConsCanvas *can) {
RAGraph *g = R_NEW0 (RAGraph);
if (!g) {
return NULL;
}
g->can = can;
g->dummy = true;
agraph_init (g);
agraph_sdb_init (g);
return g;
}
static void visual_offset(RAGraph *g, RCore *core) {
char buf[256];
int rows;
r_cons_get_size (&rows);
r_cons_gotoxy (0, rows);
r_cons_flush ();
core->cons->line->prompt_type = R_LINE_PROMPT_OFFSET;
r_line_set_hist_callback (core->cons->line, &r_line_hist_offset_up, &r_line_hist_offset_down);
r_line_set_prompt ("[offset]> ");
strcpy (buf, "s ");
if (r_cons_fgets (buf + 2, sizeof (buf) - 2, 0, NULL) > 0) {
if (buf[2] == '.') {
buf[1] = '.';
}
r_core_cmd0 (core, buf);
r_line_set_hist_callback (core->cons->line, &r_line_hist_cmd_up, &r_line_hist_cmd_down);
}
core->cons->line->prompt_type = R_LINE_PROMPT_DEFAULT;
}
static void goto_asmqjmps(RAGraph *g, RCore *core) {
const char *h = "[Fast goto call/jmp]> ";
char obuf[R_CORE_ASMQJMPS_LEN_LETTERS + 1];
int rows, i = 0;
bool cont;
r_cons_get_size (&rows);
r_cons_gotoxy (0, rows);
r_cons_clear_line (0);
r_cons_print (Color_RESET);
r_cons_print (h);
r_cons_flush ();
do {
char ch = r_cons_readchar ();
obuf[i++] = ch;
r_cons_printf ("%c", ch);
cont = isalpha ((ut8) ch) && !islower ((ut8) ch);
} while (i < R_CORE_ASMQJMPS_LEN_LETTERS && cont);
r_cons_flush ();
obuf[i] = '\0';
ut64 addr = r_core_get_asmqjmps (core, obuf);
if (addr != UT64_MAX) {
char *title = get_title (addr);
RANode *addr_node = r_agraph_get_node (g, title);
if (addr_node) {
r_agraph_set_curnode (g, addr_node);
r_core_seek (core, addr, false);
agraph_update_seek (g, addr_node, true);
} else {
r_io_sundo_push (core->io, core->offset, 0);
r_core_seek (core, addr, false);
}
free (title);
}
}
static void seek_to_node(RANode *n, RCore *core) {
ut64 off = r_anal_get_bbaddr (core->anal, core->offset);
char *title = get_title (off);
if (title && strcmp (title, n->title)) {
char *cmd = r_str_newf ("s %s", n->title);
if (cmd) {
if (*cmd) {
r_core_cmd0 (core, cmd);
}
free (cmd);
}
}
free (title);
}
static void graph_single_step_in(RCore *core, RAGraph *g) {
if (r_config_get_i (core->config, "cfg.debug")) {
if (core->print->cur_enabled) {
// dcu 0xaddr
r_core_cmdf (core, "dcu 0x%08"PFMT64x, core->offset + core->print->cur);
core->print->cur_enabled = 0;
} else {
r_core_cmd (core, "ds", 0);
r_core_cmd (core, ".dr*", 0);
}
} else {
r_core_cmd (core, "aes", 0);
r_core_cmd (core, ".ar*", 0);
}
g->is_instep = true;
g->need_reload_nodes = true;
}
static void graph_single_step_over(RCore *core, RAGraph *g) {
if (r_config_get_i (core->config, "cfg.debug")) {
if (core->print->cur_enabled) {
r_core_cmd (core, "dcr", 0);
core->print->cur_enabled = 0;
} else {
r_core_cmd (core, "dso", 0);
r_core_cmd (core, ".dr*", 0);
}
} else {
r_core_cmd (core, "aeso", 0);
r_core_cmd (core, ".ar*", 0);
}
g->is_instep = true;
g->need_reload_nodes = true;
}
static void graph_breakpoint(RCore *core) {
r_core_cmd (core, "dbs $$", 0);
}
static void graph_continue(RCore *core) {
r_core_cmd (core, "dc", 0);
}
static void applyDisMode(RCore *core) {
switch (disMode) {
case 0:
r_config_set (core->config, "asm.pseudo", "false");
r_config_set (core->config, "asm.esil", "false");
break;
case 1:
r_config_set (core->config, "asm.pseudo", "true");
r_config_set (core->config, "asm.esil", "false");
break;
case 2:
r_config_set (core->config, "asm.pseudo", "false");
r_config_set (core->config, "asm.esil", "true");
break;
}
}
static void rotateColor(RCore *core) {
int color = r_config_get_i (core->config, "scr.color");
if (++color > 2) {
color = 0;
}
r_config_set_i (core->config, "scr.color", color);
}
// dupe in visual.c
static bool toggle_bb(RCore *core, ut64 addr) {
RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, addr, R_ANAL_FCN_TYPE_NULL);
if (fcn) {
RAnalBlock *bb = r_anal_fcn_bbget_in (core->anal, fcn, addr);
if (bb) {
bb->folded = !bb->folded;
} else {
r_warn_if_reached ();
}
return true;
}
return false;
}
static char *get_graph_string(RCore *core, RAGraph *g) {
int c = r_config_get_i (core->config, "scr.color");
int u = r_config_get_i (core->config, "scr.utf8");
r_config_set_i (core->config, "scr.color", 0);
r_config_set_i (core->config, "scr.utf8", 0);
r_core_visual_graph (core, g, NULL, false);
char *s = strdup (r_cons_get_buffer ());
r_cons_reset ();
r_config_set_i (core->config, "scr.color", c);
r_config_set_i (core->config, "scr.utf8", u);
return s;
}
static void nextword(RCore *core, RAGraph *g, const char *word) {
r_return_if_fail (core && core->graph && g && g->can && word);
if (R_STR_ISEMPTY (word)) {
return;
}
RAGraphHits *gh = &g->ghits;
RConsCanvas *can = g->can;
if (gh->word_list.len && gh->old_word && !strcmp (word, gh->old_word)) {
if (gh->word_nth >= gh->word_list.len) {
gh->word_nth = 0;
}
struct r_agraph_location *pos = r_vector_index_ptr (&gh->word_list, gh->word_nth);
gh->word_nth++;
if (pos) {
can->sx = -pos->x + can->w / 2;
can->sy = -pos->y + can->h / 2;
}
return;
} else {
r_vector_clear (&gh->word_list);
}
char *s = get_graph_string (core, g);
r_cons_clear00 ();
r_cons_flush ();
const size_t MAX_COUNT = 4096;
const char *a = NULL;
size_t count = 0;
int x = 0, y = 0;
for (count = 0; count < MAX_COUNT; count++) {
a = r_str_str_xy (s, word, a, &x, &y);
if (!a) {
break;
}
struct r_agraph_location *pos = r_vector_push (&gh->word_list, NULL);
if (pos) {
pos->x = x + g->x;
pos->y = y + g->y;
}
}
free (gh->old_word);
gh->old_word = strdup (word);
free (s);
if (!a && count == 0) {
return;
}
nextword (core, g, word);
}
static const char *help_msg_visual_graph[] = {
":e cmd.gprompt=agft", "show tinygraph in one side",
"+/-/0", "zoom in/out/default",
";", "add comment in current basic block",
". (dot)", "center graph to the current node",
", (comma)", "toggle graph.few",
"^", "seek to the first bb of the function",
"=", "toggle graph.layout",
":cmd", "run radare command",
"'", "toggle graph.comments",
"\"", "toggle graph.refs",
"#", "toggle graph.hints",
"/", "highlight text",
"\\", "scroll the graph canvas to the next highlight location",
"|", "set cmd.gprompt",
"_", "enter hud selector",
">", "show function callgraph (see graph.refs)",
"<", "show program callgraph (see graph.refs)",
"(", "reverse conditional branch of last instruction in bb",
")", "rotate asm.emu and emu.str",
"Home/End", "go to the top/bottom of the canvas",
"Page-UP/DOWN", "scroll canvas up/down",
"b", "visual browse things",
"c", "toggle graph cursor mode",
"C", "toggle scr.colors",
"d", "rename function",
"D", "toggle the mixed graph+disasm mode",
"e", "rotate graph.edges (show/hide edges)",
"E", "rotate graph.linemode (square/diagonal lines)",
"F", "enter flag selector",
"g", "go/seek to given offset",
"G", "debug trace callgraph (generated with dtc)",
"hjkl/HJKL", "scroll canvas or node depending on graph cursor (uppercase for faster)",
"i", "select input nodes by index",
"I", "select output node by index",
"m/M", "change mouse modes",
"n/N", "next/previous scr.nkey (function/flag..)",
"o([A-Za-z]*)", "follow jmp/call identified by shortcut (like ;[oa])",
"O", "toggle asm.pseudo and asm.esil",
"p/P", "rotate graph modes (normal, display offsets, minigraph, summary)",
"q", "back to Visual mode",
"r", "toggle jmphints/leahints",
"R", "randomize colors",
"s/S", "step / step over",
"tab", "select next node",
"TAB", "select previous node",
"t/f", "follow true/false edges",
"u/U", "undo/redo seek",
"V", "toggle basicblock / call graphs",
"w", "toggle between movements speed 1 and graph.scroll",
"x/X", "jump to xref/ref",
"Y", "toggle tiny graph",
"z", "toggle node folding",
"Z", "toggle basic block folding",
NULL
};
R_API int r_core_visual_graph(RCore *core, RAGraph *g, RAnalFunction *_fcn, int is_interactive) {
if (is_interactive && !r_cons_is_interactive ()) {
eprintf ("Interactive graph mode requires scr.interactive=true.\n");
return 0;
}
int o_asmqjmps_letter = core->is_asmqjmps_letter;
int o_vmode = core->vmode;
int exit_graph = false, is_error = false;
int update_seek = false;
struct agraph_refresh_data *grd;
int okey, key;
RAnalFunction *fcn = NULL;
const char *key_s;
RConsCanvas *can, *o_can = NULL;
bool graph_allocated = false;
int movspeed;
int ret, invscroll;
RConfigHold *hc = r_config_hold_new (core->config);
if (!hc) {
return false;
}
r_config_hold_i (hc, "asm.pseudo", "asm.esil", "asm.cmt.right", NULL);
int h, w = r_cons_get_size (&h);
can = r_cons_canvas_new (w, h);
if (!can) {
w = 80;
h = 25;
can = r_cons_canvas_new (w, h);
if (!can) {
eprintf ("Cannot create RCons.canvas context. Invalid screen "
"size? See scr.columns + scr.rows\n");
r_config_hold_free (hc);
return false;
}
}
can->linemode = r_config_get_i (core->config, "graph.linemode");
can->color = r_config_get_i (core->config, "scr.color");
if (!g) {
graph_allocated = true;
fcn = _fcn? _fcn: r_anal_get_fcn_in (core->anal, core->offset, 0);
if (!fcn) {
r_config_hold_restore (hc);
r_config_hold_free (hc);
r_cons_canvas_free (can);
return false;
}
check_function_modified (core, fcn);
g = r_agraph_new (can);
if (!g) {
r_cons_canvas_free (can);
r_config_hold_restore (hc);
r_config_hold_free (hc);
return false;
}
g->is_tiny = is_interactive == 2;
g->layout = r_config_get_i (core->config, "graph.layout");
g->dummy = r_config_get_i (core->config, "graph.dummy");
g->show_node_titles = r_config_get_i (core->config, "graph.ntitles");
} else {
o_can = g->can;
}
g->can = can;
g->movspeed = r_config_get_i (core->config, "graph.scroll");
g->show_node_titles = r_config_get_i (core->config, "graph.ntitles");
g->show_node_body = r_config_get_i (core->config, "graph.body");
g->show_node_bubble = r_config_get_i (core->config, "graph.bubble");
g->on_curnode_change = (RANodeCallback) seek_to_node;
g->on_curnode_change_data = core;
g->edgemode = r_config_get_i (core->config, "graph.edges");
g->hints = r_config_get_i (core->config, "graph.hints");
g->is_interactive = is_interactive;
bool asm_comments = r_config_get_i (core->config, "asm.comments");
r_config_set (core->config, "asm.comments",
r_str_bool (r_config_get_i (core->config, "graph.comments")));
/* we want letters as shortcuts for call/jmps */
core->is_asmqjmps_letter = true;
core->vmode = true;
grd = R_NEW0 (struct agraph_refresh_data);
if (!grd) {
r_cons_canvas_free (can);
r_config_hold_restore (hc);
r_config_hold_free (hc);
r_agraph_free (g);
return false;
}
grd->g = g;
grd->fs = is_interactive == 1;
grd->core = core;
grd->follow_offset = _fcn == NULL;
grd->fcn = fcn != NULL? &fcn: NULL;
ret = agraph_refresh (grd);
if (!ret || is_interactive != 1) {
r_cons_newline ();
exit_graph = true;
is_error = !ret;
}
core->cons->event_resize = NULL; // avoid running old event with new data
core->cons->event_data = grd;
core->cons->event_resize = (RConsEvent) agraph_refresh_oneshot;
r_cons_break_push (NULL, NULL);
while (!exit_graph && !is_error && !r_cons_is_breaked ()) {
w = r_cons_get_size (&h);
invscroll = r_config_get_i (core->config, "graph.invscroll");
ret = agraph_refresh (grd);
if (!ret) {
is_error = true;
break;
}
showcursor (core, false);
// r_core_graph_inputhandle()
okey = r_cons_readchar ();
key = r_cons_arrow_to_hjkl (okey);
if (core->cons->mouse_event) {
movspeed = r_config_get_i (core->config, "scr.wheel.speed");
switch (key) {
case 'j':
case 'k':
switch (mousemode) {
case 0: break;
case 1: key = key == 'k'? 'h': 'l'; break;
case 2: key = key == 'k'? 'J': 'K'; break;
case 3: key = key == 'k'? 'L': 'H'; break;
}
break;
}
} else {
movspeed = g->movspeed;
}
const char *cmd;
switch (key) {
case '-':
agraph_set_zoom (g, g->zoom - ZOOM_STEP);
g->force_update_seek = true;
break;
case '+':
agraph_set_zoom (g, g->zoom + ZOOM_STEP);
g->force_update_seek = true;
break;
case '0':
agraph_set_zoom (g, ZOOM_DEFAULT);
agraph_update_seek (g, get_anode (g->curnode), true);
// update scroll (with minor shift)
break;
// Those hardcoded keys are useful only for aegi, should add subcommand of ag to set key actions
case '1':
r_core_cmd0 (core, "so;.aeg*");
break;
case '2':
r_core_cmd0 (core, "so-1;.aeg*");
break;
case '=':
{ // TODO: edit
showcursor (core, true);
const char *cmd = r_config_get (core->config, "cmd.gprompt");
r_line_set_prompt ("cmd.gprompt> ");
core->cons->line->contents = strdup (cmd);
const char *buf = r_line_readline ();
core->cons->line->contents = NULL;
r_config_set (core->config, "cmd.gprompt", buf);
showcursor (core, false);
}
break;
case '|':
{
int e = r_config_get_i (core->config, "graph.layout");
if (++e > 1) {
e = 0;
}
r_config_set_i (core->config, "graph.layout", e);
g->layout = r_config_get_i (core->config, "graph.layout");
g->need_update_dim = true;
g->need_set_layout = true;
}
discroll = 0;
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case 'e':
{
int e = r_config_get_i (core->config, "graph.edges");
e++;
if (e > 2) {
e = 0;
}
r_config_set_i (core->config, "graph.edges", e);
g->edgemode = e;
g->need_update_dim = true;
get_bbupdate (g, core, fcn);
}
break;
case '\\':
nextword (core, g, r_config_get (core->config, "scr.highlight"));
break;
case 'b':
r_core_visual_browse (core, "");
break;
case 'E':
{
int e = r_config_get_i (core->config, "graph.linemode");
e--;
if (e < 0) {
e = 1;
}
r_config_set_i (core->config, "graph.linemode", e);
g->can->linemode = e;
get_bbupdate (g, core, fcn);
}
break;
case 13:
agraph_update_seek (g, get_anode (g->curnode), true);
update_seek = true;
exit_graph = true;
break;
case '>':
if (fcn && r_cons_yesno ('y', "Compute function callgraph? (Y/n)")) {
r_core_cmd0 (core, "ag-;.agc* @$FB;.axfg @$FB;aggi");
}
break;
case '<':
// r_core_visual_refs (core, true, false);
if (fcn) {
r_core_cmd0 (core, "ag-;.axtg $FB;aggi");
}
break;
case 'G':
r_core_cmd0 (core, "ag-;.dtg*;aggi");
break;
case 'V':
if (fcn) {
agraph_toggle_callgraph (g);
}
break;
case 'Z':
if (okey == 27) { // shift-tab
agraph_prev_node (g);
} else {
RANode *n = get_anode (g->curnode);
if (n) {
ut64 addr = r_num_get (NULL, n->title);
toggle_bb (core, addr);
g->need_reload_nodes = true;
}
}
break;
case 's':
if (!fcn) {
break;
}
key_s = r_config_get (core->config, "key.s");
if (key_s && *key_s) {
r_core_cmd0 (core, key_s);
} else {
graph_single_step_in (core, g);
}
discroll = 0;
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case 'S':
if (fcn) {
graph_single_step_over (core, g);
}
break;
case 'x':
case 'X':
{
if (!fcn) {
break;
}
ut64 old_off = core->offset;
ut64 off = r_anal_get_bbaddr (core->anal, core->offset);
r_core_seek (core, off, false);
if ((key == 'x' && !r_core_visual_refs (core, true, true)) ||
(key == 'X' && !r_core_visual_refs (core, false, true))) {
r_core_seek (core, old_off, false);
}
break;
}
case 9: // tab
agraph_next_node (g);
discroll = 0;
break;
case '?':
r_cons_clear00 ();
RStrBuf *rsb = r_strbuf_new ("");
r_core_visual_append_help (rsb, "Visual Graph Mode (VV) Help", help_msg_visual_graph);
ret = r_cons_less_str (r_strbuf_get (rsb), "?");
r_strbuf_free (rsb);
break;
case '"':
r_config_toggle (core->config, "graph.refs");
break;
case '#':
if (g->mode == R_AGRAPH_MODE_COMMENTS) {
g->mode = R_AGRAPH_MODE_NORMAL;
} else {
g->mode = R_AGRAPH_MODE_COMMENTS;
}
g->need_reload_nodes = true;
discroll = 0;
agraph_update_seek (g, get_anode (g->curnode), true);
// r_config_toggle (core->config, "graph.hints");
break;
case 'p':
g->mode = next_mode (g->mode);
g->need_reload_nodes = true;
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case 'P':
if (!fcn) {
break;
}
g->mode = prev_mode (g->mode);
g->need_reload_nodes = true;
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case 'o':
goto_asmqjmps (g, core);
break;
case 'g':
showcursor (core, true);
visual_offset (g, core);
showcursor (core, false);
break;
case 'O':
if (!fcn) {
break;
}
disMode = (disMode + 1) % 3;
applyDisMode (core);
g->need_reload_nodes = true;
get_bbupdate (g, core, fcn);
break;
case 'u':
{
if (!fcn) {
break;
}
RIOUndos *undo = r_io_sundo (core->io, core->offset);
if (undo) {
r_core_seek (core, undo->off, false);
} else {
eprintf ("Cannot undo\n");
}
if (r_config_get_i (core->config, "graph.few")) {
g->need_reload_nodes = true;
}
break;
}
case 'U':
{
if (!fcn) {
break;
}
RIOUndos *undo = r_io_sundo_redo (core->io);
if (undo) {
r_core_seek (core, undo->off, false);
} else {
eprintf ("Cannot redo\n");
}
break;
}
case 'r':
if (fcn) {
g->layout = r_config_get_i (core->config, "graph.layout");
g->need_reload_nodes = true;
}
// TODO: toggle shortcut hotkeys
if (r_config_get_i (core->config, "asm.hint.call")) {
r_core_cmd0 (core, "e!asm.hint.call");
r_core_cmd0 (core, "e!asm.hint.jmp");
} else if (r_config_get_i (core->config, "asm.hint.jmp")) {
r_core_cmd0 (core, "e!asm.hint.jmp");
r_core_cmd0 (core, "e!asm.hint.lea");
} else if (r_config_get_i (core->config, "asm.hint.lea")) {
r_core_cmd0 (core, "e!asm.hint.lea");
r_core_cmd0 (core, "e!asm.hint.call");
}
break;
case '$':
r_core_cmd (core, "dr PC=$$", 0);
r_core_cmd (core, "sr PC", 0);
g->need_reload_nodes = true;
break;
case 'R':
if (r_config_get_i (core->config, "scr.randpal")) {
r_core_cmd0 (core, "ecr");
} else {
r_core_cmd0 (core, "ecn");
}
if (!fcn) {
break;
}
g->edgemode = r_config_get_i (core->config, "graph.edges");
get_bbupdate (g, core, fcn);
break;
case '!':
r_core_panels_root (core, core->panels_root);
break;
case '\'':
if (fcn) {
r_config_toggle (core->config, "graph.comments");
g->need_reload_nodes = true;
}
break;
case ';':
if (fcn) {
showcursor (core, true);
char buf[256];
r_line_set_prompt ("[comment]> ");
if (r_cons_fgets (buf, sizeof (buf), 0, NULL) > 0) {
r_core_cmdf (core, "\"CC %s\"", buf);
}
g->need_reload_nodes = true;
showcursor (core, false);
}
break;
case 'C':
rotateColor (core);
break;
case 'm':
mousemode++;
if (!mousemodes[mousemode]) {
mousemode = 0;
}
break;
case 'M':
mousemode--;
if (mousemode < 0) {
mousemode = 3;
}
break;
case '(':
if (fcn) {
r_core_cmd0 (core, "wao recj@B:-1");
g->need_reload_nodes = true;
}
break;
case ')':
if (fcn) {
rotateAsmemu (core);
g->need_reload_nodes = true;
}
break;
case 'd':
{
showcursor (core, true);
r_core_visual_define (core, "", 0);
get_bbupdate (g, core, fcn);
showcursor (core, false);
}
break;
case 'D':
g->is_dis = !g->is_dis;
break;
case 'n':
r_core_seek_next (core, r_config_get (core->config, "scr.nkey"));
break;
case 'N':
r_core_seek_previous (core, r_config_get (core->config, "scr.nkey"));
break;
case 'Y':
agraph_toggle_tiny (g);
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case 'z':
agraph_toggle_mini (g);
discroll = 0;
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case 'v':
r_core_visual_anal (core, NULL);
break;
case 'J':
// copypaste from 'j'
if (graphCursor) {
int speed = (okey == 27)? PAGEKEY_SPEED: movspeed;
graphNodeMove (g, 'j', speed * 2);
} else {
can->sy -= (5*movspeed) * (invscroll? -1: 1);
}
break;
case 'K':
if (graphCursor) {
int speed = (okey == 27)? PAGEKEY_SPEED: movspeed;
graphNodeMove (g, 'k', speed * 2);
} else {
can->sy += (5*movspeed) * (invscroll? -1: 1);
}
break;
case 'H':
if (graphCursor) {
// move node canvas faster
graphNodeMove (g, 'h', movspeed * 2);
} else {
// scroll canvas faster
if (okey == 27) {
// handle home key
const RGraphNode *gn = find_near_of (g, NULL, true);
g->update_seek_on = get_anode (gn);
} else {
can->sx += (5 * movspeed) * (invscroll? -1: 1);
}
}
break;
case 'L':
if (graphCursor) {
graphNodeMove (g, 'l', movspeed * 2);
} else {
can->sx -= (5 * movspeed) * (invscroll? -1: 1);
}
break;
case 'c':
graphCursor = !graphCursor;
break;
case 'j':
if (g->is_dis) {
r_core_cmd0 (core, "so 1");
} else {
if (graphCursor) {
int speed = (okey == 27)? PAGEKEY_SPEED: movspeed;
graphNodeMove (g, 'j', speed);
} else {
// scroll canvas
can->sy -= movspeed * (invscroll? -1: 1);
}
}
break;
case 'k':
if (g->is_dis) {
r_core_cmd0 (core, "so -1");
} else {
if (graphCursor) {
int speed = (okey == 27)? PAGEKEY_SPEED: movspeed;
graphNodeMove (g, 'k', speed);
} else {
// scroll canvas
can->sy += movspeed * (invscroll? -1: 1);
}
}
break;
case 'l':
if (graphCursor) {
int speed = (okey == 27)? PAGEKEY_SPEED: movspeed;
graphNodeMove (g, 'l', speed);
} else {
can->sx -= movspeed * (invscroll? -1: 1);
}
break;
case 'h':
if (graphCursor) {
int speed = (okey == 27)? PAGEKEY_SPEED: movspeed;
graphNodeMove (g, 'h', speed);
} else {
can->sx += movspeed * (invscroll? -1: 1);
}
break;
case '^':
{
RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, core->offset, 0);
if (fcn) {
r_core_seek (core, fcn->addr, false);
}
}
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case ',':
r_config_toggle (core->config, "graph.few");
g->need_reload_nodes = true;
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case '.':
discroll = 0;
agraph_update_seek (g, get_anode (g->curnode), true);
break;
case 'i':
agraph_follow_innodes (g, true);
if (r_config_get_i (core->config, "graph.few")) {
g->need_reload_nodes = true;
}
break;
case 'I':
agraph_follow_innodes (g, false);
if (r_config_get_i (core->config, "graph.few")) {
g->need_reload_nodes = true;
}
break;
case 't':
agraph_follow_true (g);
if (r_config_get_i (core->config, "graph.few")) {
g->need_reload_nodes = true;
}
break;
case 'T':
// XXX WIP agraph_merge_child (g, 0);
break;
case 'f':
agraph_follow_false (g);
if (r_config_get_i (core->config, "graph.few")) {
g->need_reload_nodes = true;
}
break;
case 'F':
if (okey == 27) {
// handle end key
const RGraphNode *gn = find_near_of (g, NULL, false);
g->update_seek_on = get_anode (gn);
} else {
// agraph_merge_child (g, 1);
r_core_visual_trackflags (core);
}
break;
case '/':
showcursor (core, true);
r_core_cmd0 (core, "?i highlight;e scr.highlight=`yp`");
showcursor (core, false);
break;
case ':':
core->cons->event_resize = (RConsEvent)agraph_set_need_reload_nodes;
r_core_visual_prompt_input (core);
core->cons->event_resize = (RConsEvent)agraph_refresh_oneshot;
if (!g) {
g->need_reload_nodes = true; // maybe too slow and unnecessary sometimes? better be safe and reload
get_bbupdate (g, core, fcn);
}
break;
case 'w':
agraph_toggle_speed (g, core);
break;
case '_':
r_core_visual_hudstuff (core);
break;
case R_CONS_KEY_F1:
cmd = r_config_get (core->config, "key.f1");
if (cmd && *cmd) {
(void) r_core_cmd0 (core, cmd);
}
break;
case R_CONS_KEY_F2:
cmd = r_config_get (core->config, "key.f2");
if (cmd && *cmd) {
(void) r_core_cmd0 (core, cmd);
} else {
graph_breakpoint (core);
}
break;
case R_CONS_KEY_F3:
cmd = r_config_get (core->config, "key.f3");
if (cmd && *cmd) {
(void) r_core_cmd0 (core, cmd);
}
break;
case R_CONS_KEY_F4:
cmd = r_config_get (core->config, "key.f4");
if (cmd && *cmd) {
(void) r_core_cmd0 (core, cmd);
}
break;
case R_CONS_KEY_F5:
cmd = r_config_get (core->config, "key.f5");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
}
break;
case R_CONS_KEY_F6:
cmd = r_config_get (core->config, "key.f6");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
}
break;
case R_CONS_KEY_F7:
cmd = r_config_get (core->config, "key.f7");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
} else {
graph_single_step_in (core, g);
}
break;
case R_CONS_KEY_F8:
cmd = r_config_get (core->config, "key.f8");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
} else {
graph_single_step_over (core, g);
}
break;
case R_CONS_KEY_F9:
cmd = r_config_get (core->config, "key.f9");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
} else {
graph_continue (core);
}
break;
case R_CONS_KEY_F10:
cmd = r_config_get (core->config, "key.f10");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
}
break;
case R_CONS_KEY_F11:
cmd = r_config_get (core->config, "key.f11");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
}
break;
case R_CONS_KEY_F12:
cmd = r_config_get (core->config, "key.f12");
if (cmd && *cmd) {
(void)r_core_cmd0 (core, cmd);
}
break;
case -1: // EOF
case ' ':
case 'Q':
case 'q':
if (g->is_callgraph) {
agraph_toggle_callgraph (g);
} else {
exit_graph = true;
}
break;
case 27: // ESC
if (r_cons_readchar () == 91) {
if (r_cons_readchar () == 90) {
agraph_prev_node (g);
}
}
break;
default:
break;
}
}
r_vector_fini (&g->ghits.word_list);
r_cons_break_pop ();
r_config_set (core->config, "asm.comments", r_str_bool (asm_comments));
core->cons->event_resize = NULL;
core->cons->event_data = NULL;
core->vmode = o_vmode;
core->is_asmqjmps_letter = o_asmqjmps_letter;
core->keep_asmqjmps = false;
free (grd);
if (graph_allocated) {
r_agraph_free (g);
} else {
g->can = o_can;
}
r_config_hold_restore (hc);
r_config_hold_free (hc);
if (update_seek) {
return -1;
}
return !is_error;
}
/**
* @brief Create RAGraph from generic RGraph with RGraphNodeInfo as node data
*
* @param graph <RGraphNodeInfo>
* @return RAGraph* NULL if failure
*/
R_API RAGraph *create_agraph_from_graph(const RGraph/*<RGraphNodeInfo>*/ *graph) {
r_return_val_if_fail (graph, NULL);
RAGraph *result_agraph = r_agraph_new (r_cons_canvas_new (1, 1));
if (!result_agraph) {
return NULL;
}
result_agraph->need_reload_nodes = false;
// Cache lookup to build edges
HtPPOptions pointer_options = { 0 };
HtPP /*<RGraphNode *node, RANode *anode>*/ *hashmap = ht_pp_new_opt (&pointer_options);
if (!hashmap) {
r_agraph_free (result_agraph);
return NULL;
}
// List of the new RANodes
RListIter *iter;
RGraphNode *node;
// Traverse the list, create new ANode for each Node
r_list_foreach (graph->nodes, iter, node) {
RGraphNodeInfo *info = node->data;
RANode *a_node = r_agraph_add_node (result_agraph, info->title, info->body);
if (!a_node) {
goto failure;
}
ht_pp_insert (hashmap, node, a_node);
}
// Traverse the nodes again, now build up the edges
r_list_foreach (graph->nodes, iter, node) {
RANode *a_node = ht_pp_find (hashmap, node, NULL);
if (!a_node) {
goto failure; // shouldn't happen in correct graph state
}
RListIter *neighbour_iter;
RGraphNode *neighbour;
r_list_foreach (node->in_nodes, neighbour_iter, neighbour) {
RANode *a_neighbour = ht_pp_find (hashmap, neighbour, NULL);
if (!a_neighbour) {
goto failure;
}
r_agraph_add_edge (result_agraph, a_neighbour, a_node);
}
}
ht_pp_free (hashmap);
return result_agraph;
failure:
ht_pp_free (hashmap);
r_agraph_free (result_agraph);
return NULL;
}