radare2/libr/debug/ddesc.c
Lazula 724d23a6c0
Refactor, fix, and test dd command (#19842)
* Test dd commands
* Improve dd help text
* Move dd command into a self-contained function
* Take correct arguments for ddr and ddw
* Add O_CREAT to dd+ flags for python-style automatic creation
* Add permission checks to ddr and ddw

Linux debug file descriptor info bugfixes (`linux_desc_list()`)

* Fix normal files being reported as sockets due to inaccurate S_IFSOCK check
* Fix file descriptor permission reporting
* Implement offset checking functionality
2022-04-19 07:43:54 -05:00

94 lines
2.1 KiB
C

/* radare - LGPL - Copyright 2010-2021 - pancake */
#include <r_debug.h>
R_API RDebugDesc *r_debug_desc_new(int fd, const char* path, int perm, int type, int off) {
RDebugDesc *desc = R_NEW (RDebugDesc);
if (desc) {
desc->fd = fd;
desc->path = strdup (path);
desc->perm = perm;
desc->type = type;
desc->off = off;
}
return desc;
}
R_API void r_debug_desc_free(RDebugDesc *p) {
if (p) {
free (p->path);
free (p);
}
}
R_API int r_debug_desc_open(RDebug *dbg, const char *path) {
r_return_val_if_fail (dbg && dbg->h, -1);
if (dbg && dbg->h && dbg->h->desc.open) {
return dbg->h->desc.open (path);
}
return -1;
}
R_API int r_debug_desc_close(RDebug *dbg, int fd) {
if (dbg && dbg->h && dbg->h->desc.close) {
return dbg->h->desc.close (fd);
}
return false;
}
R_API int r_debug_desc_dup(RDebug *dbg, int fd, int newfd) {
if (dbg && dbg->h && dbg->h->desc.dup) {
return dbg->h->desc.dup (fd, newfd);
}
return false;
}
R_API int r_debug_desc_read(RDebug *dbg, int fd, ut64 addr, int len) {
if (dbg && dbg->h && dbg->h->desc.read) {
return dbg->h->desc.read (fd, addr, len);
}
return false;
}
R_API int r_debug_desc_seek(RDebug *dbg, int fd, ut64 addr) {
if (dbg && dbg->h && dbg->h->desc.seek) {
return dbg->h->desc.seek (fd, addr);
}
return false;
}
R_API int r_debug_desc_write(RDebug *dbg, int fd, ut64 addr, int len) {
if (dbg && dbg->h && dbg->h->desc.write) {
return dbg->h->desc.write (fd, addr, len);
}
return false;
}
R_API int r_debug_desc_list(RDebug *dbg, bool show_commands) {
RListIter *iter;
RDebugDesc *p;
int count = 0;
if (dbg && dbg->h && dbg->h->desc.list) {
RList *list = dbg->h->desc.list (dbg->pid);
r_list_foreach (list, iter, p) {
if (show_commands) {
// Skip over std streams
// TODO: option to select which fd to start at?
if (p->fd < 3) {
dbg->cb_printf ("#dd %s\n", p->path);
} else {
dbg->cb_printf ("dd %s\n", p->path);
}
} else {
dbg->cb_printf ("%d 0x%" PFMT64x " %c%c%c %s\n", p->fd, p->off,
(p->perm & R_PERM_R)? 'r': '-',
(p->perm & R_PERM_W)? 'w': '-',
p->type, p->path);
}
}
r_list_free (list);
}
return count;
}