X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fsd-login.c;h=a0a56c49526ebdf2fb85a83137418b2e8c77d679;hb=2096e009a790073a934f5cd07d17024d3b199d0b;hp=2489d78c603dba842113eda63d8ee663eb0100ce;hpb=d60ef5265063914ca1502e56f77fd7d70e975da3;p=elogind.git

diff --git a/src/sd-login.c b/src/sd-login.c
index 2489d78c6..a0a56c495 100644
--- a/src/sd-login.c
+++ b/src/sd-login.c
@@ -481,33 +481,39 @@ _public_ int sd_seat_get_sessions(const char *seat, char ***sessions, uid_t **ui
         if (uids && t) {
                 char *w, *state;
                 size_t l;
-                unsigned i = 0;
 
                 FOREACH_WORD(w, l, t, state)
                         n++;
 
-                b = new(uid_t, n);
-                if (!b) {
-                        strv_free(a);
-                        return -ENOMEM;
-                }
-
-                FOREACH_WORD(w, l, t, state) {
-                        char *k;
+                if (n == 0)
+                        b = NULL;
+                else {
+                        unsigned i = 0;
 
-                        k = strndup(w, l);
-                        if (!k) {
-                                free(t);
-                                free(b);
+                        b = new(uid_t, n);
+                        if (!b) {
+                                strv_free(a);
                                 return -ENOMEM;
                         }
 
-                        r = parse_uid(k, b + i);
-                        free(k);
-                        if (r < 0)
-                                continue;
+                        FOREACH_WORD(w, l, t, state) {
+                                char *k;
+
+                                k = strndup(w, l);
+                                if (!k) {
+                                        free(t);
+                                        free(b);
+                                        strv_free(a);
+                                        return -ENOMEM;
+                                }
 
-                        i++;
+                                r = parse_uid(k, b + i);
+                                free(k);
+                                if (r < 0)
+                                        continue;
+
+                                i++;
+                        }
                 }
         }
 
@@ -574,6 +580,9 @@ _public_ int sd_get_uids(uid_t **users) {
         uid_t *l = NULL;
 
         d = opendir("/run/systemd/users/");
+        if (!d)
+                return -errno;
+
         for (;;) {
                 struct dirent buffer, *de;
                 int k;