diff options
Diffstat (limited to 'tools')
-rw-r--r-- | tools/syslogd.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/tools/syslogd.c b/tools/syslogd.c index 19a5900c..52c0be5f 100644 --- a/tools/syslogd.c +++ b/tools/syslogd.c @@ -2429,13 +2429,46 @@ doGlblProcessInit(void) */ exit(1); /* "good" exit - after forking, not diasabling anything */ } + num_fds = getdtablesize(); close(0); /* we keep stdout and stderr open in case we have to emit something */ + i = 3; + + /* if (sd_booted()) */ { + const char *e; + char buf[24] = { '\0' }; + char *p = NULL; + unsigned long l; + int fds; + + /* fork & systemd socket activation: + * fetch listen pid and update to ours, + * when it is set to pid of our parent. + */ + if ( (e = getenv("LISTEN_PID"))) { + errno = 0; + l = strtoul(e, &p, 10); + if (errno == 0 && l > 0 && (!p || !*p)) { + if (getppid() == (pid_t)l) { + snprintf(buf, sizeof(buf), "%d", + getpid()); + setenv("LISTEN_PID", buf, 1); + } + } + } + + /* + * close only all further fds, except + * of the fds provided by systemd. + */ + sd_fds = sd_listen_fds(0); + if (sd_fds > 0) + i = SD_LISTEN_FDS_START + sd_fds; + } + for ( ; i < num_fds; i++) + (void) close(i); - if (sd_listen_fds(0) <= 0) - for (i = 3; i < num_fds; i++) - (void) close(i); untty(); } else { fputs(" Already running. If you want to run multiple instances, you need " |