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https://github.com/radareorg/radare2.git
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86c4f031d8
Added 'cc' command to compare bytes with column hexdiff Added r_print_hexdiff() public api Added diff.from and diff.to eval configuration variables Visual 'D' used to setup the visual diff offsets Press 'c' to enable cursor in visual diff Press '<tab>' to cycle between diff.from and diff.to Use RCore's RNum from RConfig Fix bug in r_core_read when io.va and sections used Fix bugs in r_io_maps and io.va Multiple files can now be opened and compared with mapping
106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
/* radare - LGPL - Copyright 2008-2012 pancake<nopcode.org> */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <r_io.h>
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#include <r_list.h>
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R_API void r_io_map_init(struct r_io_t *io) {
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io->maps = r_list_new ();
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}
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R_API RIOMap *r_io_map_resolve(struct r_io_t *io, int fd) {
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RIOMap *map;
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RListIter *iter;
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r_list_foreach (io->maps, iter, map) {
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if (map->fd == fd)
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return map;
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}
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return NULL;
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}
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R_API int r_io_map_del(struct r_io_t *io, int fd) {
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RIOMap *map;
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RListIter *iter;
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/* No _safe loop necessary because we return immediately after the delete. */
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r_list_foreach (io->maps, iter, map) {
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if (fd==-1 || map->fd==fd) {
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r_list_delete (io->maps, iter);
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return R_TRUE;
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}
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}
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return R_FALSE;
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}
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R_API int r_io_map_del_at(RIO *io, ut64 addr) {
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RIOMap *map;
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RListIter *iter;
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r_list_foreach (io->maps, iter, map) {
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if (map->from == addr) {
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r_list_delete (io->maps, iter);
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return R_TRUE;
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}
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}
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return R_FALSE;
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}
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R_API RIOMap *r_io_map_add(RIO *io, int fd, int flags, ut64 delta, ut64 offset, ut64 size) {
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RIOMap *im = R_NEW (RIOMap);
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if (!im) return NULL;
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im->fd = fd;
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im->flags = flags;
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im->delta = delta;
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im->from = offset;
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im->to = offset + size;
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r_list_append (io->maps, im);
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return im;
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}
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R_API int r_io_map_select(RIO *io, ut64 off) {
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//ut64 delta = 0;
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int done = 0;
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ut64 fd = -1;//io->fd;
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st32 delta = 0;
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RIOMap *im = NULL;
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RListIter *iter;
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r_list_foreach (io->maps, iter, im) { // _prev?
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if (off >= im->from && off < im->to) {
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delta = off - im->from + im->delta;
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fd = im->fd;
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done = 1;
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if (fd == io->raised)
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break;
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}
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}
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if (done == 0) {
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//eprintf ("fail 0x%llx %d\n", off, delta);
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r_io_set_fdn (io, fd);
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r_io_seek (io, -1, R_IO_SEEK_SET);
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return off;
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}
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if (fd != -1) {
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r_io_set_fdn (io, fd);
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//eprintf ("seek ret %d = %llx\n", delta,
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r_io_seek (io, delta, R_IO_SEEK_SET);
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return 0;
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}
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r_io_seek (io, off, R_IO_SEEK_SET);
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return R_FALSE;
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}
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#if 0
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int r_io_map_read_rest(struct r_io_t *io, ut64 off, ut8 *buf, ut64 len) {
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struct list_head *pos;
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list_for_each_prev(pos, &io->maps) {
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struct r_io_map_t *im = list_entry(pos, struct r_io_map_t, list);
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if (im->file[0] != '\0' && off+len >= im->from && off < im->to) {
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lseek(im->fd, 0, SEEK_SET);
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// XXX VERY BROKEN
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return read(im->fd, buf+(im->from-(off+len)), len);
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}
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}
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return 0;
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}
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#endif
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