Mercurial > dropbear
diff atomicio.c @ 4:fe6bca95afa7
Makefile.in contains updated files required
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 01 Jun 2004 02:46:09 +0000 |
parents | |
children | 5c6f9d27ea1c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/atomicio.c Tue Jun 01 02:46:09 2004 +0000 @@ -0,0 +1,64 @@ +/* + * Copied from OpenSSH 3.6.1p2, required for loginrec.c + * + * Copyright (c) 1995,1999 Theo de Raadt. All rights reserved. + * 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. + */ + +/* Taken from OpenSSH for use with the loginrec code */ + +/* RCSID("$OpenBSD: atomicio.c,v 1.10 2001/05/08 22:48:07 markus Exp $"); */ + +#include "atomicio.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); +}