From: Sam Leffler <sam@ucbvax.Berkeley.EDU>
Date: Sun, 23 Jan 1983 10:59:54 +0000 (-0800)
Subject: a bit more careful about write errors
X-Git-Tag: BSD-4_1c_2-Snapshot-Development~808
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/2c5108088128d68f08d8f55ab9f7d27be9279223

a bit more careful about write errors

SCCS-vsn: lib/libc/net/rcmd.c 4.6
---

diff --git a/usr/src/lib/libc/net/rcmd.c b/usr/src/lib/libc/net/rcmd.c
index afd3af2308..47bc868c8e 100644
--- a/usr/src/lib/libc/net/rcmd.c
+++ b/usr/src/lib/libc/net/rcmd.c
@@ -1,5 +1,5 @@
 #ifndef lint
-static char sccsid[] = "@(#)rcmd.c	4.5 %G%";
+static char sccsid[] = "@(#)rcmd.c	4.6 %G%";
 #endif
 
 #include <stdio.h>
@@ -68,7 +68,11 @@ retry:
 		}
 		listen(s2, 1);
 		(void) sprintf(num, "%d", lport);
-		(void) write(s, num, strlen(num)+1);
+		if (write(s, num, strlen(num)+1) != strlen(num)+1) {
+			perror("write: setting up stderr");
+			(void) close(s2);
+			goto bad;
+		}
 		{ int len = sizeof (from);
 		  s3 = accept(s2, &from, &len, 0);
 		  close(s2);