diff options
Diffstat (limited to 'mit-pthreads/net/getnetbyaddr.c')
| -rw-r--r-- | mit-pthreads/net/getnetbyaddr.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/mit-pthreads/net/getnetbyaddr.c b/mit-pthreads/net/getnetbyaddr.c new file mode 100644 index 00000000000..6fba661c92e --- /dev/null +++ b/mit-pthreads/net/getnetbyaddr.c @@ -0,0 +1,65 @@ +/* + * Copyright (c) 1983 Regents of the University of California. + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University 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 REGENTS 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +/*static char *sccsid = "from: @(#)getnetbyaddr.c 5.7 (Berkeley) 6/1/90";*/ +static char *rcsid = "$Id$"; +#endif /* LIBC_SCCS and not lint */ + +#include <stdio.h> +#include <netdb.h> +#include "net_internal.h" + +struct netent *getnetbyaddr(long net, int type) +{ + char *buf = _net_buf(); + + if (!buf) + return NULL; + return getnetbyaddr_r(net, type, (struct netent *) buf, + buf + sizeof(struct netent), NET_BUFSIZE); +} + +struct netent *getnetbyaddr_r(long net, int type, struct netent *result, + char *buf, int bufsize) +{ + pthread_mutex_lock(&net_iterate_lock); + setnetent(0); + while ((result = getnetent_r(result, buf, bufsize)) != NULL) { + if (result->n_addrtype == type && result->n_net == net) + break; + } + pthread_mutex_unlock(&net_iterate_lock); + return result; +} + |