sockatmark(3), recv(2), getsockopt(2), and connect(2) return specifically

-1 to mark failure, not arbitrary values < 0.  I believe manual pages
should follow the described contract precisely and accurately.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/lib/libc/net/sockatmark.3 b/src/lib/libc/net/sockatmark.3
index 6a94b84390..524536c12b 100644
--- a/src/lib/libc/net/sockatmark.3
+++ b/src/lib/libc/net/sockatmark.3
@@ -22,9 +22,9 @@
 .\" SUCH DAMAGE.
 .\"
 .\" From FreeBSD: r108087 2002-12-19 01:40:28 -0800
-.\" $OpenBSD: sockatmark.3,v 1.1 2014/08/31 02:27:37 guenther Exp $
+.\" $OpenBSD: sockatmark.3,v 1.2 2019/06/20 14:19:25 deraadt Exp $
 .\"
-.Dd $Mdocdate: August 31 2014 $
+.Dd $Mdocdate: June 20 2019 $
 .Dt SOCKATMARK 3
 .Os
 .Sh NAME
@@ -66,7 +66,7 @@ oob()
         char waste[BUFSIZ];
 
         for (;;) {
-                if ((mark = sockatmark(rem)) < 0) {
+                if ((mark = sockatmark(rem)) == -1) {
                         perror("sockatmark");
                         break;
                 }
@@ -74,7 +74,7 @@ oob()
                         break;
                 (void) read(rem, waste, sizeof (waste));
         }
-        if (recv(rem, &mark, 1, MSG_OOB) < 0) {
+        if (recv(rem, &mark, 1, MSG_OOB) == -1) {
                 perror("recv");
                 ...
         }