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/*
* Copyright (c) 1997, 1998 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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.
*
* 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*/
#include "krb5_locl.h"
KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
krb5_net_write (krb5_context context,
void *p_fd,
const void *buf,
size_t len)
{
krb5_socket_t fd = *((krb5_socket_t *)p_fd);
return net_write(fd, buf, len);
}
KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL
krb5_net_write_block(krb5_context context,
void *p_fd,
const void *buf,
size_t len,
time_t timeout)
{
krb5_socket_t fd = *((krb5_socket_t *)p_fd);
int ret;
struct timeval tv, *tvp;
const char *cbuf = (const char *)buf;
size_t rem = len;
ssize_t count;
fd_set wfds;
do {
FD_ZERO(&wfds);
FD_SET(fd, &wfds);
if (timeout != 0) {
tv.tv_sec = timeout;
tv.tv_usec = 0;
tvp = &tv;
} else
tvp = NULL;
ret = select(fd + 1, NULL, &wfds, NULL, tvp);
if (rk_IS_SOCKET_ERROR(ret)) {
if (rk_SOCK_ERRNO == EINTR)
continue;
return -1;
}
#ifdef HAVE_WINSOCK
if (ret == 0) {
WSASetLastError( WSAETIMEDOUT );
return 0;
}
count = send (fd, cbuf, rem, 0);
if (rk_IS_SOCKET_ERROR(count)) {
return -1;
}
#else
if (ret == 0) {
return 0;
}
if (!FD_ISSET(fd, &wfds)) {
errno = ETIMEDOUT;
return -1;
}
count = write (fd, cbuf, rem);
if (count < 0) {
if (errno == EINTR)
continue;
else
return count;
}
#endif
cbuf += count;
rem -= count;
} while (rem > 0);
return len;
}
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