diff options
Diffstat (limited to 'tdeioslave/sftp/atomicio.cpp')
-rw-r--r-- | tdeioslave/sftp/atomicio.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/tdeioslave/sftp/atomicio.cpp b/tdeioslave/sftp/atomicio.cpp new file mode 100644 index 000000000..057f20fe9 --- /dev/null +++ b/tdeioslave/sftp/atomicio.cpp @@ -0,0 +1,67 @@ +/* + * 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. + */ + +//#include "includes.h" +//RCSID("$OpenBSD: atomicio.c,v 1.9 2001/03/02 18:54:30 deraadt Exp $"); + +//#include "xmalloc.h" +#include "atomicio.h" +#include <unistd.h> +#include <errno.h> +#include <kdebug.h> + +/* + * ensure all of data on socket comes through. f==read || f==write + */ + +ssize_t atomicio(int fd, char *_s, size_t n, bool read) +{ + char *s = _s; + ssize_t res; + ssize_t pos = 0; + + while (n > pos) { + if( read) + res = ::read(fd, s + pos, n - pos); + else + res = ::write(fd, s + pos, n - pos); + + switch (res) { + case -1: + kdDebug() << "atomicio(): errno=" << errno << endl; +#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); +} |