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Sync OpenBSD patchset 776:

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Make stdio blocking again before calling shell command with -c.
This commit is contained in:
Tiago Cunha 2010-10-24 00:47:46 +00:00
parent d4b58c71a2
commit f79b467dce
1 changed files with 9 additions and 1 deletions
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10
tmux.c
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@ -1,4 +1,4 @@
/* $Id: tmux.c,v 1.218 2010-10-24 00:45:57 tcunha 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 <pwd.h>
#include <signal.h>
#include <stdlib.h>
@ -214,6 +215,7 @@ 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')
@ -226,6 +228,12 @@ 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);