From: Karel Zak <kzak@redhat.com>
Date: Mon, 2 Jul 2007 13:58:09 +0000 (+0200)
Subject: wall: fix O_NONBLOCK usage
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6f628832a1e6292cfdf9074ba32ba8cd21f899d;p=util-linux

wall: fix O_NONBLOCK usage

From: Alan Curry <pacman@TheWorld.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/login-utils/ttymsg.c b/login-utils/ttymsg.c
index 55b26a82..0dbe5811 100644
--- a/login-utils/ttymsg.c
+++ b/login-utils/ttymsg.c
@@ -127,7 +127,7 @@ ttymsg(struct iovec *iov, int iovcnt, char *line, int tmout) {
 			continue;
 		}
 		if (errno == EWOULDBLOCK) {
-			int cpid, off = 0;
+			int cpid, flags;
 
 			if (forked) {
 				(void) close(fd);
@@ -155,7 +155,8 @@ ttymsg(struct iovec *iov, int iovcnt, char *line, int tmout) {
 			(void) signal(SIGTERM, SIG_DFL); /* XXX */
 			(void) sigsetmask(0);
 			(void) alarm((u_int)tmout);
-			(void) fcntl(fd, O_NONBLOCK, &off);
+			flags = fcntl(fd, F_GETFL);
+			fcntl(flags, F_SETFL, (long) (flags & ~O_NONBLOCK));
 			continue;
 		}
 		/*