openssh/atomicio.c
Damien Miller 69b69aa50d - (djm) Sync with OpenBSD:
- markus@cvs.openbsd.org  2000/10/16 15:46:32
     [ssh.1]
     fixes from pekkas@netcore.fi
   - markus@cvs.openbsd.org  2000/10/17 14:28:11
     [atomicio.c]
     return number of characters processed; ok deraadt@
   - markus@cvs.openbsd.org  2000/10/18 12:04:02
     [atomicio.c]
     undo
   - markus@cvs.openbsd.org  2000/10/18 12:23:02
     [scp.c]
     replace atomicio(read,...) with read(); ok deraadt@
   - markus@cvs.openbsd.org  2000/10/18 12:42:00
     [session.c]
     restore old record login behaviour
   - deraadt@cvs.openbsd.org 2000/10/19 10:41:13
     [auth-skey.c]
     fmt string problem in unused code
   - provos@cvs.openbsd.org  2000/10/19 10:45:16
     [sshconnect2.c]
     don't reference freed memory. okay deraadt@
   - markus@cvs.openbsd.org  2000/10/21 11:04:23
     [canohost.c]
     typo, eramore@era-t.ericsson.se; ok niels@
   - markus@cvs.openbsd.org  2000/10/23 13:31:55
     [cipher.c]
     non-alignment dependent swap_bytes(); from
     simonb@wasabisystems.com/netbsd
   - markus@cvs.openbsd.org  2000/10/26 12:38:28
     [compat.c]
     add older vandyke products
   - markus@cvs.openbsd.org  2000/10/27 01:32:19
     [channels.c channels.h clientloop.c serverloop.c session.c]
     [ssh.c util.c]
     enable non-blocking IO on channels, and tty's (except for the
     client ttys).
   - markus@cvs.openbsd.org  2000/10/27 01:48:22
     channels.c channels.h clientloop.c
     deny agent/x11 forwarding unless requested; thanks to jwl@pobox.com
2000-10-28 14:19:58 +11:00

63 lines
1.9 KiB
C

/*
* Copyright (c) 1995,1999 Theo de Raadt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
RCSID("$OpenBSD: atomicio.c,v 1.7 2000/10/18 18:04:02 markus Exp $");
#include "xmalloc.h"
#include "ssh.h"
/*
* ensure all of data on socket comes through. f==read || f==write
*/
ssize_t
atomicio(f, fd, _s, n)
ssize_t (*f) ();
int fd;
void *_s;
size_t n;
{
char *s = _s;
ssize_t res, pos = 0;
while (n > pos) {
res = (f) (fd, s + pos, n - pos);
switch (res) {
case -1:
#ifdef EWOULDBLOCK
if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)
#else
if (errno == EINTR || errno == EAGAIN)
#endif
continue;
case 0:
return (res);
default:
pos += res;
}
}
return (pos);
}