diff options
Diffstat (limited to 'udevsend.c')
| -rw-r--r-- | udevsend.c | 52 |
1 files changed, 37 insertions, 15 deletions
diff --git a/udevsend.c b/udevsend.c index f28e445433..a52d6ec165 100644 --- a/udevsend.c +++ b/udevsend.c @@ -98,6 +98,26 @@ static int start_daemon(void) return 0; } +static void run_udev(const char *subsystem) +{ + pid_t pid; + + pid = fork(); + switch (pid) { + case 0: + /* child */ + execl(UDEV_BIN, "udev", subsystem, NULL); + dbg("exec of child failed"); + exit(1); + break; + case -1: + dbg("fork of child failed"); + break; + default: + wait(NULL); + } +} + int main(int argc, char* argv[]) { struct hotplug_msg msg; @@ -109,14 +129,12 @@ int main(int argc, char* argv[]) int retval = 1; int loop; struct timespec tspec; - int sock; + int sock = -1; struct sockaddr_un saddr; socklen_t addrlen; int started_daemon = 0; -#ifdef DEBUG init_logging("udevsend"); -#endif dbg("version %s", UDEV_VERSION); subsystem = get_subsystem(argv[1]); @@ -150,7 +168,7 @@ int main(int argc, char* argv[]) sock = socket(AF_LOCAL, SOCK_DGRAM, 0); if (sock == -1) { dbg("error getting socket"); - goto exit; + goto fallback; } memset(&saddr, 0x00, sizeof(struct sockaddr_un)); @@ -168,22 +186,21 @@ int main(int argc, char* argv[]) (struct sockaddr *)&saddr, addrlen); if (retval != -1) { retval = 0; - goto close_and_exit; + goto exit; } - + if (errno != ECONNREFUSED) { dbg("error sending message"); - goto close_and_exit; + goto fallback; } - + if (!started_daemon) { - dbg("connect failed, try starting daemon..."); + info("starting udevd daemon"); retval = start_daemon(); if (retval) { - dbg("error starting daemon"); - goto exit; + info("error starting daemon"); + goto fallback; } - dbg("daemon started"); started_daemon = 1; } else { @@ -193,9 +210,14 @@ int main(int argc, char* argv[]) nanosleep(&tspec, NULL); } } - -close_and_exit: - close(sock); + +fallback: + info("unable to connect to event daemon, try to call udev directly"); + run_udev(subsystem); + exit: + if (sock != -1) + close(sock); + return retval; } |