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capabilities: Proper error handling when reading groups

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This commit is contained in:
Tobias Brunner
2013-07-24 10:54:26 +02:00
parent 3021139f6f
commit cfdd23b967
1 changed files with 8 additions and 1 deletions
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src/libstrongswan/utils/capabilities.c
+8 -1
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@@ -90,12 +90,19 @@ static bool has_group(gid_t group)
return TRUE; return TRUE;
} }
ngroups = sysconf(_SC_NGROUPS_MAX); ngroups = sysconf(_SC_NGROUPS_MAX);
groups = calloc(ngroups, sizeof(gid_t)); if (ngroups == -1)
{
DBG1(DBG_LIB, "getting groups for current process failed: %s",
strerror(errno));
return FALSE;
}
groups = calloc(ngroups + 1, sizeof(gid_t));
ngroups = getgroups(ngroups, groups); ngroups = getgroups(ngroups, groups);
if (ngroups == -1) if (ngroups == -1)
{ {
DBG1(DBG_LIB, "getting groups for current process failed: %s", DBG1(DBG_LIB, "getting groups for current process failed: %s",
strerror(errno)); strerror(errno));
free(groups);
return FALSE; return FALSE;
} }
for (i = 0; i < ngroups; i++) for (i = 0; i < ngroups; i++)