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weston-launch: Add some error reporting for weston-launch

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This also avoids us passing (size_t)(-1 * sizeof(gid_t)) into malloc
This commit is contained in:
Rob Bradford 2012-12-05 18:47:11 +00:00 • committed by Kristian Høgsberg
parent 6b8e17af60
commit 0b7b898289
1 changed files with 7 additions and 0 deletions
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7
src/weston-launch.c
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@ -84,11 +84,18 @@ read_groups(void)
gid_t *groups;
n = getgroups(0, NULL);
if (n < 0) {
fprintf(stderr, "Unable to retrieve groups: %m\n");
return NULL;
}
groups = malloc(n * sizeof(gid_t));
if (!groups)
return NULL;
if (getgroups(n, groups) < 0) {
fprintf(stderr, "Unable to retrieve groups: %m\n");
free(groups);
return NULL;
}