From: Bruno Haible <bruno@clisp.org>
Date: Sun, 31 Aug 2008 13:54:18 +0000 (+0000)
Subject: SIGPIPE handling.
X-Git-Tag: v0.18~358
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7256171d638183d7e643fbd410860b2f6e6b11dd;p=thirdparty%2Fgettext.git

SIGPIPE handling.
---

diff --git a/gettext-tools/src/ChangeLog b/gettext-tools/src/ChangeLog
index d58682bd1..c91fd670a 100644
--- a/gettext-tools/src/ChangeLog
+++ b/gettext-tools/src/ChangeLog
@@ -1,3 +1,8 @@
+2008-08-31  Bruno Haible  <bruno@clisp.org>
+
+	* msgexec.c: Include <signal.h>.
+	(main): Block SIGPIPE for the duration of the processing.
+
 2008-08-23  Bruno Haible  <bruno@clisp.org>
 
 	Fix behaviour of "msgmerge --update" when sorting is requested and
diff --git a/gettext-tools/src/msgexec.c b/gettext-tools/src/msgexec.c
index 345044dfc..2db3f23b0 100644
--- a/gettext-tools/src/msgexec.c
+++ b/gettext-tools/src/msgexec.c
@@ -24,6 +24,7 @@
 #include <getopt.h>
 #include <limits.h>
 #include <locale.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -210,6 +211,18 @@ There is NO WARRANTY, to the extent permitted by law.\n\
 
   if (strcmp (sub_name, "0") != 0)
     {
+      /* Block SIGPIPE for this process and for the subprocesses.
+	 The subprogram may have side effects (additionally to producing some
+	 output), therefore if there are no readers on stdout, processing of the
+	 strings must continue nevertheless.  */
+      {
+	sigset_t sigpipe_set;
+
+	sigemptyset (&sigpipe_set);
+	sigaddset (&sigpipe_set, SIGPIPE);
+	sigprocmask (SIG_UNBLOCK, &sigpipe_set, NULL);
+      }
+
       /* Attempt to locate the program.
 	 This is an optimization, to avoid that spawn/exec searches the PATH
 	 on every call.  */