diff options
Diffstat (limited to 'lib/krb5/net_write.c')
-rw-r--r-- | lib/krb5/net_write.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/lib/krb5/net_write.c b/lib/krb5/net_write.c new file mode 100644 index 0000000..868015f --- /dev/null +++ b/lib/krb5/net_write.c @@ -0,0 +1,105 @@ +/* + * 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" + +RCSID("$Id: net_write.c 13863 2004-05-25 21:46:46Z lha $"); + +krb5_ssize_t KRB5_LIB_FUNCTION +krb5_net_write (krb5_context context, + void *p_fd, + const void *buf, + size_t len) +{ + int fd = *((int *)p_fd); + + return net_write (fd, buf, len); +} + +krb5_ssize_t KRB5_LIB_FUNCTION +krb5_net_write_block(krb5_context context, + void *p_fd, + const void *buf, + size_t len, + time_t timeout) +{ + int fd = *((int *)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 (ret < 0) { + if (errno == EINTR) + continue; + return -1; + } else if (ret == 0) + return 0; + + if (!FD_ISSET(fd, &wfds)) { + errno = ETIMEDOUT; + return -1; + } + +#ifdef WIN32 + count = send (fd, cbuf, rem, 0); +#else + count = write (fd, cbuf, rem); +#endif + if (count < 0) { + if (errno == EINTR) + continue; + else + return count; + } + cbuf += count; + rem -= count; + + } while (rem > 0); + + return len; +} |