git-daemon: Avoid leaking the listening sockets into child processes.

This makes it possible to restart git-daemon even if some children are
still running.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/daemon.c b/daemon.c
index 2a20ca55cbe912a8ddd4bea8b2476ae30215903a..66f8d6f03d91d7dfa4a164137ee0310ca26dc1aa 100644 (file)
--- a/daemon.c
+++ b/daemon.c
@@ -773,6 +773,7 @@ static int socksetup(char *listen_addr, int listen_port, int **socklist_p)
        char pbuf[NI_MAXSERV];
        struct addrinfo hints, *ai0, *ai;
        int gai;
+       long flags;
 
        sprintf(pbuf, "%d", listen_port);
        memset(&hints, 0, sizeof(hints));
@@ -820,6 +821,10 @@ static int socksetup(char *listen_addr, int listen_port, int **socklist_p)
                        continue;       /* not fatal */
                }
 
+               flags = fcntl(sockfd, F_GETFD, 0);
+               if (flags >= 0)
+                       fcntl(sockfd, F_SETFD, flags | FD_CLOEXEC);
+
                socklist = xrealloc(socklist, sizeof(int) * (socknum + 1));
                socklist[socknum++] = sockfd;
 
@@ -839,6 +844,7 @@ static int socksetup(char *listen_addr, int listen_port, int **socklist_p)
 {
        struct sockaddr_in sin;
        int sockfd;
+       long flags;
 
        memset(&sin, 0, sizeof sin);
        sin.sin_family = AF_INET;
@@ -871,6 +877,10 @@ static int socksetup(char *listen_addr, int listen_port, int **socklist_p)
                return 0;
        }
 
+       flags = fcntl(sockfd, F_GETFD, 0);
+       if (flags >= 0)
+               fcntl(sockfd, F_SETFD, flags | FD_CLOEXEC);
+
        *socklist_p = xmalloc(sizeof(int));
        **socklist_p = sockfd;
        return 1;