diff options
Diffstat (limited to 'crypto/kerberosIV/lib/roken/net_read.c')
-rw-r--r-- | crypto/kerberosIV/lib/roken/net_read.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/roken/net_read.c b/crypto/kerberosIV/lib/roken/net_read.c new file mode 100644 index 0000000..6d45bfa --- /dev/null +++ b/crypto/kerberosIV/lib/roken/net_read.c @@ -0,0 +1,74 @@ +/* + * Copyright (c) 1995, 1996, 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. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +RCSID("$Id: net_read.c,v 1.3 1999/12/02 16:58:51 joda Exp $"); +#endif + +#include <sys/types.h> +#include <unistd.h> +#include <errno.h> + +#include <roken.h> + +/* + * Like read but never return partial data. + */ + +ssize_t +net_read (int fd, void *buf, size_t nbytes) +{ + char *cbuf = (char *)buf; + ssize_t count; + size_t rem = nbytes; + + while (rem > 0) { +#ifdef WIN32 + count = recv (fd, cbuf, rem, 0); +#else + count = read (fd, cbuf, rem); +#endif + if (count < 0) { + if (errno == EINTR) + continue; + else + return count; + } else if (count == 0) { + return count; + } + cbuf += count; + rem -= count; + } + return nbytes; +} |