diff options
Diffstat (limited to 'lib/libc/net/getnetnamadr.c')
-rw-r--r-- | lib/libc/net/getnetnamadr.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/lib/libc/net/getnetnamadr.c b/lib/libc/net/getnetnamadr.c new file mode 100644 index 0000000..2c5c918 --- /dev/null +++ b/lib/libc/net/getnetnamadr.c @@ -0,0 +1,113 @@ +/*- + * Copyright (c) 1994, Garrett Wollman + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE 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 rcsid[] = "$FreeBSD$"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/param.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <netdb.h> +#include <stdio.h> +#include <ctype.h> +#include <string.h> +#include <stdarg.h> +#include <nsswitch.h> + +extern int _ht_getnetbyname(void *, void *, va_list); +extern int _dns_getnetbyname(void *, void *, va_list); +extern int _nis_getnetbyname(void *, void *, va_list); +extern int _ht_getnetbyaddr(void *, void *, va_list); +extern int _dns_getnetbyaddr(void *, void *, va_list); +extern int _nis_getnetbyaddr(void *, void *, va_list); + +/* Network lookup order if nsswitch.conf is broken or nonexistant */ +static const ns_src default_src[] = { + { NSSRC_FILES, NS_SUCCESS }, + { NSSRC_DNS, NS_SUCCESS }, + { 0 } +}; + +struct netent * +getnetbyname(const char *name) +{ + struct netent *hp = 0; + int rval; + + + static const ns_dtab dtab[] = { + NS_FILES_CB(_ht_getnetbyname, NULL) + { NSSRC_DNS, _dns_getnetbyname, NULL }, + NS_NIS_CB(_nis_getnetbyname, NULL) /* force -DHESIOD */ + { 0 } + }; + + rval = nsdispatch((void *)&hp, dtab, NSDB_NETWORKS, "getnetbyname", + default_src, name); + + if (rval != NS_SUCCESS) + return NULL; + else + return hp; +} + +struct netent * +getnetbyaddr(u_long addr, int af) +{ + struct netent *hp = 0; + int rval; + + static const ns_dtab dtab[] = { + NS_FILES_CB(_ht_getnetbyaddr, NULL) + { NSSRC_DNS, _dns_getnetbyaddr, NULL }, + NS_NIS_CB(_nis_getnetbyaddr, NULL) /* force -DHESIOD */ + { 0 } + }; + + rval = nsdispatch((void *)&hp, dtab, NSDB_HOSTS, "getnetbyaddr", + default_src, addr, af); + + if (rval != NS_SUCCESS) + return NULL; + else + return hp; +} + +void +setnetent(stayopen) + int stayopen; +{ + _setnethtent(stayopen); + _setnetdnsent(stayopen); +} + +void +endnetent() +{ + _endnethtent(); + _endnetdnsent(); +} |