util: introduce get_process_gid()

[elogind.git] / src / shared / util.c

diff --git a/src/shared/util.c b/src/shared/util.c
index 20e5faf34bd2037a5bd017a378d838cf2a9afc99..59c1417b44615443d5a360339acc3171c5cd1e56 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -1108,7 +1108,7 @@ int get_process_exe(pid_t pid, char **name) {
         return r;
 }
 
-int get_process_uid(pid_t pid, uid_t *uid) {
+static int get_process_id(pid_t pid, const char *field, uid_t *uid) {
         char *p;
         FILE *f;
         int r;
@@ -1140,8 +1140,8 @@ int get_process_uid(pid_t pid, uid_t *uid) {
 
                 l = strstrip(line);
 
-                if (startswith(l, "Uid:")) {
-                        l += 4;
+                if (startswith(l, field)) {
+                        l += strlen(field);
                         l += strspn(l, WHITESPACE);
 
                         l[strcspn(l, WHITESPACE)] = 0;
@@ -1159,6 +1159,14 @@ finish:
         return r;
 }
 
+int get_process_uid(pid_t pid, uid_t *uid) {
+        return get_process_id(pid, "Uid:", uid);
+}
+
+int get_process_gid(pid_t pid, gid_t *gid) {
+        return get_process_id(pid, "Gid:", gid);
+}
+
 char *strnappend(const char *s, const char *suffix, size_t b) {
         size_t a;
         char *r;