[src/trunk]: src/libexec/telnetd try netflush() if buffer is too low.

[itojun <itojun%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/86cba1156b4f
branches:  trunk
changeset: 512914:86cba1156b4f
user:      itojun <itojun%NetBSD.org@localhost>
date:      Thu Jul 19 07:26:53 2001 +0000

description:
try netflush() if buffer is too low.

diffstat:

 libexec/telnetd/state.c |  13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diffs (41 lines):

diff -r 3531e25cf21d -r 86cba1156b4f libexec/telnetd/state.c
--- a/libexec/telnetd/state.c   Thu Jul 19 06:40:01 2001 +0000
+++ b/libexec/telnetd/state.c   Thu Jul 19 07:26:53 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: state.c,v 1.15 2001/07/19 04:57:50 itojun Exp $        */
+/*     $NetBSD: state.c,v 1.16 2001/07/19 07:26:53 itojun Exp $        */
 
 /*
  * Copyright (c) 1989, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)state.c    8.5 (Berkeley) 5/30/95";
 #else
-__RCSID("$NetBSD: state.c,v 1.15 2001/07/19 04:57:50 itojun Exp $");
+__RCSID("$NetBSD: state.c,v 1.16 2001/07/19 07:26:53 itojun Exp $");
 #endif
 #endif /* not lint */
 
@@ -1691,6 +1691,11 @@
 
        va_start(args, format);
        remaining = BUFSIZ - (nfrontp - netobuf);
+       /* try a netflush() if the room is too low */
+       if (strlen(format) > remaining || BUFSIZ / 4 > remaining) {
+               netflush();
+               remaining = BUFSIZ - (nfrontp - netobuf);
+       }
        ret = vsnprintf(nfrontp, remaining, format, args);
        nfrontp += ret;
        va_end(args);
@@ -1703,6 +1708,10 @@
        size_t remaining;
 
        remaining = BUFSIZ - (nfrontp - netobuf);
+       if (remaining < l) {
+               netflush();
+               remaining = BUFSIZ - (nfrontp - netobuf);
+       }
        if (remaining < l)
                return -1;
        memmove(nfrontp, buf, l);