svn commit: r217312 - head/sbin/hastd

[Pawel Jakub Dawidek]

Author: pjd
Date: Wed Jan 12 16:16:54 2011
New Revision: 217312
URL: http://svn.freebsd.org/changeset/base/217312

Log:
  execve(2), not fork(2) resets signal handler to the default value (if it isn't
  ignored). Correct comment talking about that.
  
  Pointed out by:	kib
  MFC after:	3 days

Modified:
  head/sbin/hastd/hooks.c

Modified: head/sbin/hastd/hooks.c
==============================================================================
--- head/sbin/hastd/hooks.c	Wed Jan 12 16:00:49 2011	(r217311)
+++ head/sbin/hastd/hooks.c	Wed Jan 12 16:16:54 2011	(r217312)
@@ -373,9 +373,9 @@ hook_execv(const char *path, va_list ap)
 		PJDLOG_VERIFY(sigemptyset(&mask) == 0);
 		PJDLOG_VERIFY(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
 		/*
-		 * Dummy handler set for SIGCHLD in the parent should be
-		 * changed after fork(2) automatically to the default SIG_IGN,
-		 * so there is no need to do anything with it.
+		 * Dummy handler set for SIGCHLD in the parent will be restored
+		 * to SIG_IGN on execv(3) below, so there is no need to do
+		 * anything with it.
 		 */
 		execv(path, args);
 		pjdlog_errno(LOG_ERR, "Unable to execute %s", path);