Merged revisions 48375 via svnmerge from

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

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r48375 | tilghman | 2006-12-10 18:47:21 -0600 (Sun, 10 Dec 2006) | 13 lines

Merged revisions 48374 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r48374 | tilghman | 2006-12-10 18:33:59 -0600 (Sun, 10 Dec 2006) | 5 lines

When doing a fork() and exec(), two problems existed (Issue 8086):
1) Ignored signals stayed ignored after the exec().
2) Signals could possibly fire between the fork() and exec(), causing Asterisk
signal handlers within the child to execute, which caused nasty race conditions.

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git-svn-id: http://svn.digium.com/svn/asterisk/trunk@48376 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 9 insertions, 2 deletions

diff --git a/apps/app_festival.c b/apps/app_festival.c
index e02459873..7af2e78a6 100644
--- a/apps/app_festival.c
+++ b/apps/app_festival.c
@@ -130,19 +130,26 @@ static int send_waveform_to_fd(char *waveform, int length, int fd) {
 #ifdef __PPC__ 
 	char c;
 #endif
+	sigset_t fullset, oldset;
+
+	sigfillset(&fullset);
+	pthread_sigmask(SIG_BLOCK, &fullset, &oldset);
 
         res = fork();
         if (res < 0)
                 ast_log(LOG_WARNING, "Fork failed\n");
-        if (res)
+        if (res) {
+		pthread_sigmask(SIG_SETMASK, &oldset, NULL);
                 return res;
+	}
         for (x=0;x<256;x++) {
                 if (x != fd)
                         close(x);
         }
 	if (ast_opt_high_priority)
 		ast_set_priority(0);
-
+	signal(SIGPIPE, SIG_DFL);
+	pthread_sigmask(SIG_UNBLOCK, &fullset, NULL);
 /*IAS */
 #ifdef __PPC__  
 	for( x=0; x<length; x+=2)