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authorNicholas Marriott <nicm@cvs.openbsd.org>2010-10-16 08:42:36 +0000
committerNicholas Marriott <nicm@cvs.openbsd.org>2010-10-16 08:42:36 +0000
commit345e1f669b4b7bd0c73417360942f57c950c0d8d (patch)
treef091166510518e73554338769478c394c1a28d41 /usr.bin
parent1cb40c40d55beae032d4ae8da6145b07262eab91 (diff)
Make stdio blocking again before calling shell command with -c.
Diffstat (limited to 'usr.bin')
-rw-r--r--usr.bin/tmux/tmux.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/usr.bin/tmux/tmux.c b/usr.bin/tmux/tmux.c
index 04119f5f5d8..95969506afc 100644
--- a/usr.bin/tmux/tmux.c
+++ b/usr.bin/tmux/tmux.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tmux.c,v 1.90 2010/10/16 08:31:55 nicm Exp $ */
+/* $OpenBSD: tmux.c,v 1.91 2010/10/16 08:42:35 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -22,6 +22,7 @@
#include <errno.h>
#include <event.h>
+#include <fcntl.h>
#include <paths.h>
#include <pwd.h>
#include <signal.h>
@@ -211,6 +212,7 @@ shell_exec(const char *shell, const char *shellcmd)
{
const char *shellname, *ptr;
char *argv0;
+ int mode;
ptr = strrchr(shell, '/');
if (ptr != NULL && *(ptr + 1) != '\0')
@@ -223,6 +225,12 @@ shell_exec(const char *shell, const char *shellcmd)
xasprintf(&argv0, "%s", shellname);
setenv("SHELL", shell, 1);
+ if ((mode = fcntl(STDIN_FILENO, F_GETFL)) != -1)
+ fcntl(STDIN_FILENO, F_SETFL, mode & ~O_NONBLOCK);
+ if ((mode = fcntl(STDOUT_FILENO, F_GETFL)) != -1)
+ fcntl(STDOUT_FILENO, F_SETFL, mode & ~O_NONBLOCK);
+ if ((mode = fcntl(STDERR_FILENO, F_GETFL)) != -1)
+ fcntl(STDERR_FILENO, F_SETFL, mode & ~O_NONBLOCK);
closefrom(STDERR_FILENO + 1);
execl(shell, argv0, "-c", shellcmd, (char *) NULL);