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From Shoichi Sakane <sak...@kame.net>
Subject [PATCH?] SSI by mod_cgid.c, child process becomes zombie.
Date Fri, 12 Jul 2002 03:00:27 GMT
when i get a html file including a line "<!--#exec cmd="ls" -->",
a child process of cgi daemon process in the server becomes zombie.
i'm using FreeBSD4.6-RELEASE and apache-2.0.39.

cgid_server() calls apr_signal(SIGCHLD, SIG_IGN), but it doesn't work
at least in my environment.  i might be misoperating, anyway the patch
is attached in this mail.  i haven't care about the porting issue.
so if this patch needs to modify to be suitable for other platform.

i'm sorry if this issue has been already discussed.
thank you.

*** mod_cgid-old.c	Fri Jun 14 04:41:17 2002
--- mod_cgid.c	Wed Jul 10 21:38:02 2002
***************
*** 514,520 ****
--- 514,537 ----
  
      apr_pool_create(&ptrans, pcgi); 
  
+ #if 0
      apr_signal(SIGCHLD, SIG_IGN); 
+ #else
+     /*
+      * parent should ignore the signal from child
+      * OR parent process has to wait for child process.
+      */
+     {
+         struct sigaction sa;
+         
+         memset(&sa, 0, sizeof(sa));
+         sa.sa_handler = NULL;
+         sa.sa_flags = SA_NOCLDWAIT;
+         sigemptyset(&sa.sa_mask);
+         sigaction(SIGCHLD, &sa, (struct sigaction *)0);
+     }
+ #endif
+ 
      apr_signal(SIGHUP, daemon_signal_handler);
  
      if (unlink(sconf->sockname) < 0 && errno != ENOENT) {

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