| /* |
| * Copyright (c) 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("$Id: atomicio.c,v 1.3 1999/12/07 05:45:20 damien Exp $"); |
| |
| #include "xmalloc.h" |
| #include "ssh.h" |
| |
| /* |
| * ensure all of data on socket comes through. f==read || f==write |
| */ |
| int |
| atomicio(f, fd, s, n) |
| int (*f) (); |
| int fd; |
| void *s; |
| size_t n; |
| { |
| int res, pos = 0; |
| |
| while (n > pos) { |
| res = (f) (fd, s + pos, n - pos); |
| switch (res) { |
| case -1: |
| if (errno == EINTR || errno == EAGAIN) |
| continue; |
| case 0: |
| return (res); |
| default: |
| pos += res; |
| } |
| } |
| return (pos); |
| } |