From: Alexandr D. Kanevskiy <kad@blackcatlinux.com>
Date: Tue, 23 Sep 2003 15:11:58 +0000 (+0000)
Subject: fix a bug reported by Morgan Nelson.
X-Git-Tag: ppp-2.4.7~275
X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=commitdiff_plain;h=3bea570b674a30512e6c47b20d05c6a9c2725590

fix a bug reported by Morgan Nelson.
Confirmed on RedHat/ASPLinux 9
---

diff --git a/pppd/main.c b/pppd/main.c
index 640782a..4171acc 100644
--- a/pppd/main.c
+++ b/pppd/main.c
@@ -40,7 +40,7 @@
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#define RCSID	"$Id: main.c,v 1.128 2003/06/11 23:56:26 paulus Exp $"
+#define RCSID	"$Id: main.c,v 1.129 2003/09/23 15:11:58 kad Exp $"
 
 #include <stdio.h>
 #include <ctype.h>
@@ -1503,6 +1503,7 @@ device_script(program, in, out, dont_wait)
     int pid;
     int status = -1;
     int errfd;
+    int fd;
 
     ++conn_running;
     pid = safe_fork();
@@ -1530,6 +1531,14 @@ device_script(program, in, out, dont_wait)
 
     /* here we are executing in the child */
 
+    /* make sure fds 0, 1, 2 are occupied */
+    while ((fd = dup(in)) >= 0) {
+        if (fd > 2) {
+	    close(fd);
+	    break;
+	}
+    }
+
     /* dup in and out to fds > 2 */
     {
 	int fd1 = in, fd2 = out, fd3 = log_to_fd;