Nate, I don't think it's perl, but syslog-ng. What version of syslog-ng are you running? I looked at the source for 'afprogram.c' in both 1.6.2 and the 1.7.0+20040428 where it forks the child to run the program. Using the code as follows, how could you do anything _but_ run /bin/sh -c ... if (pid == 0) { int fd = open("/dev/null", O_WRONLY); dup2(msgpipe[0], 0); dup2(fd, 1); dup2(fd, 2); close(fd); close(msgpipe[1]); execl("/bin/sh", "/bin/sh", "-c", self->progname->data, NULL); _exit(127); } I'm still reading through the code, but I don't think that syslog-ng passes along the necessary signals to it's children. When I HUP syslog-ng, it spawns another sec.pl as well, not SIGTERM'ing the first one. Am I not understanding the behavior of syslog-ng, doing something wrong, or is this some sort of bug in syslog-ng? FYI, sec.pl's behavior is documented as follows in the SEC man page: SIGTERM SEC will terminate gracefully (all SEC child processes will receive SIGTERM). Shouldn't syslog-ng do the same? Thanks, Tony -- "Computer science is as much about computers as astronomy is about telescopes" -- Edsger Dijkstra --------------------------------------------------------- Anthony Tonns, UNIX Administrator - atonns@mail.ivillage.com
-----Original Message----- From: Nate Campi [mailto:nate@campin.net] Sent: Wednesday, April 28, 2004 5:06 PM To: syslog-ng@lists.balabit.hu Subject: Re: [syslog-ng]cannot get sec.pl to exit after syslog-ng does
I read your message too fast the first time, it appears that you still have it spawned by a shell with no shell redirection characters.
23330 ? S 2:11 /sbin/syslog-ng 23331 ? S 0:00 \_ /usr/bin/perl /usr/bin/swatch --script-dir=/root --read-pipe=cat /dev 23346 ? S 0:31 | \_ perl /root/.swatch_script.23331 23370 ? S 0:02 | \_ cat /dev/fd/0 23334 ? S 3:24 \_ /usr/bin/perl -w /usr/local/sbin/sec.pl -input=- -conf=/usr/local/etc
I don't have a shell starting sec on linux. Maybe it's perl on solaris doing this. I can't say. -- Nate
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