106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
/*
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* Copyright (c) 1997, 1998 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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RCSID("$Id: net_write.c 13863 2004-05-25 21:46:46Z lha $");
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krb5_ssize_t KRB5_LIB_FUNCTION
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krb5_net_write (krb5_context context,
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void *p_fd,
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const void *buf,
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size_t len)
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{
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int fd = *((int *)p_fd);
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return net_write (fd, buf, len);
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}
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krb5_ssize_t KRB5_LIB_FUNCTION
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krb5_net_write_block(krb5_context context,
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void *p_fd,
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const void *buf,
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size_t len,
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time_t timeout)
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{
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int fd = *((int *)p_fd);
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int ret;
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struct timeval tv, *tvp;
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const char *cbuf = (const char *)buf;
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size_t rem = len;
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ssize_t count;
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fd_set wfds;
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do {
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FD_ZERO(&wfds);
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FD_SET(fd, &wfds);
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if (timeout != 0) {
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tv.tv_sec = timeout;
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tv.tv_usec = 0;
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tvp = &tv;
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} else
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tvp = NULL;
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ret = select(fd + 1, NULL, &wfds, NULL, tvp);
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if (ret < 0) {
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if (errno == EINTR)
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continue;
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return -1;
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} else if (ret == 0)
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return 0;
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if (!FD_ISSET(fd, &wfds)) {
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errno = ETIMEDOUT;
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return -1;
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}
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#ifdef WIN32
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count = send (fd, cbuf, rem, 0);
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#else
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count = write (fd, cbuf, rem);
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#endif
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if (count < 0) {
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if (errno == EINTR)
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continue;
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else
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return count;
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}
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cbuf += count;
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rem -= count;
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} while (rem > 0);
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return len;
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}
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