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Diffstat (limited to 'mit-pthreads/net/getprotoname.c')
| -rw-r--r-- | mit-pthreads/net/getprotoname.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/mit-pthreads/net/getprotoname.c b/mit-pthreads/net/getprotoname.c new file mode 100644 index 00000000000..7bd7b925091 --- /dev/null +++ b/mit-pthreads/net/getprotoname.c @@ -0,0 +1,73 @@ +/* + * 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: @(#)getprotoname.c 5.7 (Berkeley) 2/24/91";*/ +static char *rcsid = "$Id$"; +#endif /* LIBC_SCCS and not lint */ + +#include <pthread.h> +#include <netdb.h> +#include <string.h> +#include "proto_internal.h" + +struct protoent *getprotobyname(const char *name) +{ + char *buf = _proto_buf(); + + if (!buf) + return NULL; + return getprotobyname_r(name, (struct protoent *) buf, + buf + sizeof(struct protoent), PROTO_BUFSIZE); +} + +struct protoent *getprotobyname_r(const char *name, struct protoent *result, + char *buf, int bufsize) +{ + char **alias; + + pthread_mutex_lock(&proto_iterate_lock); + setprotoent(0); + while ((result = getprotoent_r(result, buf, bufsize)) != NULL) { + /* Check the entry's name and aliases against the given name. */ + if (strcmp(result->p_name, name) == 0) + break; + for (alias = result->p_aliases; *alias != 0; alias++) { + if (strcmp(*alias, name) == 0) + break; + } + } + pthread_mutex_unlock(&proto_iterate_lock); + return result; +} + |