mifr/subsurface
1
0
Fork 0
mirror of https://github.com/subsurface/subsurface.git synced 2025-02-19 22:16:15 +00:00
Code Issues Projects Releases Packages Wiki Activity

Don't use old pointer after realloc

Browse source 
If realloc moved the memory, we shouldn't try to access it. realloc
copied that memory so access it via the new function instead.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Anton Lundin 2013-12-11 21:21:49 +01:00 • committed by Dirk Hohndel
parent 05b00742c6
commit 2c689964ab
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
file.c
View file

@ -117,12 +117,14 @@ static int try_to_xslt_open_csv(const char *filename, struct memblock *mem, char
*/
buf = realloc(mem->buffer, mem->size + strlen("<csv></csv>"));
if (buf != NULL) {
memmove(buf + 5, mem->buffer, mem->size);
memmove(buf + 5, buf, mem->size);
memcpy(buf, "<csv>", 5);
memcpy(mem->buffer + mem->size + 5, "</csv>", 7);
mem->buffer = buf;
memcpy(buf + mem->size + 5, "</csv>", 7);
mem->size += strlen("<csv></csv>");
mem->buffer = buf;
} else {
/* we can atleast try to strdup a error... */
*error = strdup("realloc failed in __func__\n");
free(mem->buffer);
return 1;
}