2007-02-08 16:47:06 +00:00
|
|
|
/*
|
|
|
|
* util/net_help.c - implementation of the network helper code
|
|
|
|
*
|
|
|
|
* Copyright (c) 2007, NLnet Labs. All rights reserved.
|
|
|
|
*
|
|
|
|
* This software is open source.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
*
|
|
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
|
|
* this list of conditions and the following disclaimer.
|
|
|
|
*
|
|
|
|
* 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.
|
|
|
|
*
|
|
|
|
* Neither the name of the NLNET LABS nor the names of its contributors may
|
|
|
|
* be used to endorse or promote products derived from this software without
|
|
|
|
* specific prior written permission.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
* "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 REGENTS OR CONTRIBUTORS 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.
|
|
|
|
*/
|
|
|
|
/**
|
|
|
|
* \file
|
2007-02-14 10:10:43 +00:00
|
|
|
* Implementation of net_help.h.
|
2007-02-08 16:47:06 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
#include "config.h"
|
|
|
|
#include "util/net_help.h"
|
2007-03-01 15:50:57 +00:00
|
|
|
#include "util/log.h"
|
|
|
|
#include <fcntl.h>
|
2007-02-08 16:47:06 +00:00
|
|
|
|
|
|
|
/** returns true is string addr is an ip6 specced address. */
|
|
|
|
int
|
|
|
|
str_is_ip6(const char* str)
|
|
|
|
{
|
|
|
|
if(strchr(str, ':'))
|
|
|
|
return 1;
|
|
|
|
else return 0;
|
|
|
|
}
|
|
|
|
|
2007-02-26 14:49:11 +00:00
|
|
|
int
|
|
|
|
write_socket(int s, const void *buf, size_t size)
|
|
|
|
{
|
|
|
|
const char* data = (const char*)buf;
|
|
|
|
size_t total_count = 0;
|
|
|
|
|
|
|
|
while (total_count < size) {
|
|
|
|
ssize_t count
|
|
|
|
= write(s, data + total_count, size - total_count);
|
|
|
|
if (count == -1) {
|
|
|
|
if (errno != EAGAIN && errno != EINTR) {
|
|
|
|
return 0;
|
|
|
|
} else {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
total_count += count;
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
2007-03-01 15:50:57 +00:00
|
|
|
|
|
|
|
int
|
|
|
|
fd_set_nonblock(int s)
|
|
|
|
{
|
|
|
|
int flag;
|
|
|
|
if((flag = fcntl(s, F_GETFL)) == -1) {
|
|
|
|
log_err("can't fcntl F_GETFL: %s", strerror(errno));
|
|
|
|
flag = 0;
|
|
|
|
}
|
|
|
|
flag |= O_NONBLOCK;
|
|
|
|
if(fcntl(s, F_SETFL, flag) == -1) {
|
|
|
|
log_err("can't fcntl F_SETFL: %s", strerror(errno));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|