X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/1c63e24602c01c5d7e5587088969d90a25807386..23e649c97fc92d822cdaba2e9febc3099de77673:/unix/uxproxy.c

diff --git a/unix/uxproxy.c b/unix/uxproxy.c
index 617f5ccf..ddc55800 100644
--- a/unix/uxproxy.c
+++ b/unix/uxproxy.c
@@ -209,7 +209,7 @@ static int localproxy_select_result(int fd, int event)
 	} else if (ret == 0) {
 	    return plug_closing(s->plug, NULL, 0, 0);
 	} else {
-	    return plug_receive(s->plug, 1, buf, ret);
+	    return plug_receive(s->plug, 0, buf, ret);
 	}
     } else if (event == 2) {
 	assert(fd == s->to_cmd);
@@ -265,6 +265,8 @@ Socket platform_new_connection(SockAddr addr, char *hostname,
 	ret->error = dupprintf("pipe: %s", strerror(errno));
 	return (Socket)ret;
     }
+    cloexec(to_cmd_pipe[1]);
+    cloexec(from_cmd_pipe[0]);
 
     pid = fork();
 
@@ -272,16 +274,15 @@ Socket platform_new_connection(SockAddr addr, char *hostname,
 	ret->error = dupprintf("fork: %s", strerror(errno));
 	return (Socket)ret;
     } else if (pid == 0) {
-	int i;
 	close(0);
 	close(1);
 	dup2(to_cmd_pipe[0], 0);
 	dup2(from_cmd_pipe[1], 1);
-	for (i = 3; i < 127; i++)
-	    close(i);
+	close(to_cmd_pipe[0]);
+	close(from_cmd_pipe[1]);
 	fcntl(0, F_SETFD, 0);
 	fcntl(1, F_SETFD, 0);
-	execl("/bin/sh", "sh", "-c", cmd, NULL);
+	execl("/bin/sh", "sh", "-c", cmd, (void *)NULL);
 	_exit(255);
     }