core: add new ConditionNeedsUpdate= unit condition

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

diff --git a/src/shared/socket-util.c b/src/shared/socket-util.c
index 75c47d1f76dfdea8b35dab793fdf0a305a3dfe84..92564e31933f8b107a3ffb575c2a8acc648dfcfb 100644 (file)
--- a/src/shared/socket-util.c
+++ b/src/shared/socket-util.c
@@ -422,8 +422,7 @@ const char* socket_address_get_path(const SocketAddress *a) {
 }
 
 bool socket_ipv6_is_supported(void) {
-        char *l = 0;
-        bool enabled;
+        _cleanup_free_ char *l = NULL;
 
         if (access("/sys/module/ipv6", F_OK) != 0)
                 return 0;
@@ -433,10 +432,7 @@ bool socket_ipv6_is_supported(void) {
                 return 1;
 
         /* If module was loaded with disable=1 no IPv6 available */
-        enabled = l[0] == '0';
-        free(l);
-
-        return enabled;
+        return l[0] == '0';
 }
 
 bool socket_address_matches_fd(const SocketAddress *a, int fd) {
@@ -579,6 +575,7 @@ int sockaddr_pretty(const struct sockaddr *_sa, socklen_t salen, bool translate_
 int getpeername_pretty(int fd, char **ret) {
         union sockaddr_union sa;
         socklen_t salen;
+        int r;
 
         assert(fd >= 0);
         assert(ret);
@@ -588,16 +585,16 @@ int getpeername_pretty(int fd, char **ret) {
                 return -errno;
 
         if (sa.sa.sa_family == AF_UNIX) {
-                struct ucred ucred;
+                struct ucred ucred = {};
 
                 /* UNIX connection sockets are anonymous, so let's use
                  * PID/UID as pretty credentials instead */
 
-                salen = sizeof(ucred);
-                if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &salen) < 0)
-                        return -errno;
+                r = getpeercred(fd, &ucred);
+                if (r < 0)
+                        return r;
 
-                if (asprintf(ret, "PID %lu/UID %lu", (unsigned long) ucred.pid, (unsigned long) ucred.pid) < 0)
+                if (asprintf(ret, "PID "PID_FMT"/UID "UID_FMT, ucred.pid, ucred.uid) < 0)
                         return -ENOMEM;
 
                 return 0;
@@ -628,6 +625,21 @@ int getsockname_pretty(int fd, char **ret) {
         return sockaddr_pretty(&sa.sa, salen, false, ret);
 }
 
+int socket_address_unlink(SocketAddress *a) {
+        assert(a);
+
+        if (socket_address_family(a) != AF_UNIX)
+                return 0;
+
+        if (a->sockaddr.un.sun_path[0] == 0)
+                return 0;
+
+        if (unlink(a->sockaddr.un.sun_path) < 0)
+                return -errno;
+
+        return 1;
+}
+
 static const char* const netlink_family_table[] = {
         [NETLINK_ROUTE] = "route",
         [NETLINK_FIREWALL] = "firewall",