emo/shadow
1
0
Fork 0
Code Issues Pull Requests Packages Releases Activity

usermod: prevent a segv

Browse Source 
in the case where prefix does not exist.

Signed-off-by: Serge Hallyn <shallyn@cisco.com>
This commit is contained in:
Serge Hallyn 2018-05-08 21:37:55 -05:00
parent 73a876a056
commit 48dcf7852e
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libmisc/prefix_flag.c
View File

@ -319,6 +319,7 @@ extern struct group *prefix_getgr_nam_gid(const char *grname)
{
long long int gid;
char *endptr;
struct group *g;
if (NULL == grname) {
return NULL;
@ -333,7 +334,8 @@ extern struct group *prefix_getgr_nam_gid(const char *grname)
&& (gid == (gid_t)gid)) {
return prefix_getgrgid ((gid_t) gid);
}
return __gr_dup(prefix_getgrnam (grname));
g = prefix_getgrnam (grname);
return g ? __gr_dup(g) : NULL;
}
else
return getgr_nam_gid(grname);