commit e18d071f3cc8912b9bfb6fb392689dc7394355dd
from: Stefan Sperling <stsp@stsp.name>
date: Sun Nov 20 14:01:04 2022 UTC

getpwuid() returns NULL without setting errno if no user is found

pointed out by millert@

commit - 4cad5be9f88baeb0583b4b63a546f5815929a270
commit + e18d071f3cc8912b9bfb6fb392689dc7394355dd
blob - 03cfa9264e97a034a49d4be7da221944cb1eda34
blob + ed5bbd87051a58c687b26b3585c2a1e3714d65f3
--- gotd/auth.c
+++ gotd/auth.c
@@ -120,8 +120,12 @@ gotd_auth_check(struct gotd_access_rule_list *rules, c
 	int ngroups = NGROUPS_MAX;
 
 	pw = getpwuid(euid);
-	if (pw == NULL)
-		return got_error_from_errno("getpwuid");
+	if (pw == NULL) {
+		if (errno)
+			return got_error_from_errno("getpwuid");
+		else
+			return got_error_set_errno(EACCES, repo_name);
+	}
 
 	if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups) == -1)
 		log_warnx("group membership list truncated");