Redirect program's stdout and stderr to /dev/null

2003-02-20  Jeffrey Stedfast  <fejj@ximian.com>

	* camel-filter-search.c (run_command): Redirect program's stdout
	and stderr to /dev/null

	* camel-filter-driver.c (pipe_to_system): Redirect the program's
	stderr to /dev/null
	(pipe_to_system): Write the pipe to a mem stream and use the mem
	stream in the parser. Also, when setting an exception get the
	errno from the parser so we can give more info about the error to
	the user.

svn path=/trunk/; revision=19974

1 files changed, 9 insertions, 5 deletions

diff --git a/camel/camel-filter-search.c b/camel/camel-filter-search.c
index 9a42b5e002..e0e385346b 100644
--- a/camel/camel-filter-search.c
+++ b/camel/camel-filter-search.c
@@ -519,18 +519,22 @@ run_command (struct _ESExp *f, int argc, struct _ESExpResult **argv, FilterMessa
 	if (!(pid = fork ())) {
 		/* child process */
 		GPtrArray *args;
-		int maxfd, i;
+		int maxfd, fd, i;
 		
-		if (dup2 (in_fds[0], STDIN_FILENO) < 0)
+		fd = open ("/dev/null", O_WRONLY);
+		
+		if (dup2 (in_fds[0], STDIN_FILENO) < 0 ||
+		    dup2 (fd, STDOUT_FILENO) < 0 ||
+		    dup2 (fd, STDERR_FILENO) < 0)
 			_exit (255);
 		
 		setsid ();
 		
 		maxfd = sysconf (_SC_OPEN_MAX);
 		if (maxfd > 0) {
-			for (i = 0; i < maxfd; i++) {
-				if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO)
-					close (i);
+			for (fd = 0; fd < maxfd; fd++) {
+				if (fd != STDIN_FILENO && fd != STDOUT_FILENO && fd != STDERR_FILENO)
+					close (fd);
 			}
 		}