asgardius/alsa-utils
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-utils synced 2024-11-09 17:35:42 +01:00
Code Issues Projects Releases Packages Wiki Activity

alsactl: terminate readlink result string

Browse source 
readlink does not guarantee that its result string is nul-terminated.
Instead, increase the buffer by one byte to make sure that we can
add '\0' at the end.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Tobias Stoeckmann 2015-07-11 13:23:57 +02:00 committed by Takashi Iwai
parent 46b6082756
commit 13c8269414
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
alsactl/init_sysfs.c
View file

@ -108,11 +108,11 @@ static char *sysfs_attr_get_value(const char *devpath, const char *attr_name)
if (S_ISLNK(statbuf.st_mode)) {
/* links return the last element of the target path */
char link_target[PATH_SIZE];
char link_target[PATH_SIZE + 1];
int len;
const char *pos;
len = readlink(path_full, link_target, sizeof(link_target));
len = readlink(path_full, link_target, sizeof(link_target) - 1);
if (len > 0) {
link_target[len] = '\0';
pos = strrchr(link_target, '/');