Merged revisions 269635 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r269635 | tilghman | 2010-06-10 02:52:34 -0500 (Thu, 10 Jun 2010) | 9 lines
  
  Ensure restartable system calls can restart (BSD signal semantics).
  
  This eliminates the annoying <beep> on the console.
  
  (closes issue #17477)
   Reported by: jvandal
   Patches: 
         20100610__issue17477.diff.txt uploaded by tilghman (license 14)
........


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@269636 f38db490-d61c-443f-a65b-d21fe96a405b

main/asterisk.c

@@ -981,6 +981,7 @@ static void _null_sig_handler(int sig)
 
 static struct sigaction null_sig_handler = {
 	.sa_handler = _null_sig_handler,
+	.sa_flags = SA_RESTART,
 };
 
 static struct sigaction ignore_sig_handler = {
@@ -1458,6 +1459,7 @@ static void _urg_handler(int num)
 
 static struct sigaction urg_handler = {
 	.sa_handler = _urg_handler,
+	.sa_flags = SA_RESTART,
 };
 
 static void _hup_handler(int num)
@@ -1477,6 +1479,7 @@ static void _hup_handler(int num)
 
 static struct sigaction hup_handler = {
 	.sa_handler = _hup_handler,
+	.sa_flags = SA_RESTART,
 };
 
 static void _child_handler(int sig)
@@ -1495,6 +1498,7 @@ static void _child_handler(int sig)
 
 static struct sigaction child_handler = {
 	.sa_handler = _child_handler,
+	.sa_flags = SA_RESTART,
 };
 
 /*! \brief Set maximum open files */

main/logger.c

@@ -764,6 +764,7 @@ static void _handle_SIGXFSZ(int sig)
 
 static struct sigaction handle_SIGXFSZ = {
 	.sa_handler = _handle_SIGXFSZ,
+	.sa_flags = SA_RESTART,
 };
 
 static void ast_log_vsyslog(struct logmsg *msg)

utils/extconf.c

@@ -1269,6 +1269,7 @@ static void _null_sig_handler(int sig)
 
 static struct sigaction null_sig_handler = {
 	.sa_handler = _null_sig_handler,
+	.sa_flags = SA_RESTART,
 };
 
 void ast_replace_sigchld(void);