diff options
Diffstat (limited to 'lib/libc/net/getnetnamadr.c')
| -rw-r--r-- | lib/libc/net/getnetnamadr.c | 458 |
1 files changed, 0 insertions, 458 deletions
diff --git a/lib/libc/net/getnetnamadr.c b/lib/libc/net/getnetnamadr.c deleted file mode 100644 index 9aa4d51..0000000 --- a/lib/libc/net/getnetnamadr.c +++ /dev/null @@ -1,458 +0,0 @@ -/*- - * 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. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "namespace.h" -#include "reentrant.h" -#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 <errno.h> -#include <stdlib.h> -#include <string.h> -#include <stdarg.h> -#include <nsswitch.h> -#include "un-namespace.h" -#include "netdb_private.h" -#ifdef NS_CACHING -#include "nscache.h" -#endif - -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 } -}; - -NETDB_THREAD_ALLOC(netent_data) -NETDB_THREAD_ALLOC(netdata) - -#ifdef NS_CACHING -static int -net_id_func(char *buffer, size_t *buffer_size, va_list ap, void *cache_mdata) -{ - char *name; - uint32_t net; - int type; - - size_t desired_size, size; - enum nss_lookup_type lookup_type; - int res = NS_UNAVAIL; - - lookup_type = (enum nss_lookup_type)cache_mdata; - switch (lookup_type) { - case nss_lt_name: - name = va_arg(ap, char *); - - size = strlen(name); - desired_size = sizeof(enum nss_lookup_type) + size + 1; - if (desired_size > *buffer_size) { - res = NS_RETURN; - goto fin; - } - - memcpy(buffer, &lookup_type, sizeof(enum nss_lookup_type)); - memcpy(buffer + sizeof(enum nss_lookup_type), name, size + 1); - - res = NS_SUCCESS; - break; - case nss_lt_id: - net = va_arg(ap, uint32_t); - type = va_arg(ap, int); - - desired_size = sizeof(enum nss_lookup_type) + - sizeof(uint32_t) + sizeof(int); - if (desired_size > *buffer_size) { - res = NS_RETURN; - goto fin; - } - - memcpy(buffer, &lookup_type, sizeof(enum nss_lookup_type)); - memcpy(buffer + sizeof(enum nss_lookup_type), &net, - sizeof(uint32_t)); - memcpy(buffer + sizeof(enum nss_lookup_type) + sizeof(uint32_t), - &type, sizeof(int)); - - res = NS_SUCCESS; - break; - default: - /* should be unreachable */ - return (NS_UNAVAIL); - } - -fin: - *buffer_size = desired_size; - return (res); -} - - -static int -net_marshal_func(char *buffer, size_t *buffer_size, void *retval, va_list ap, - void *cache_mdata) -{ - char *name; - uint32_t net; - int type; - struct netent *ne; - char *orig_buf; - size_t orig_buf_size; - - struct netent new_ne; - size_t desired_size, size, aliases_size; - char *p; - char **alias; - - switch ((enum nss_lookup_type)cache_mdata) { - case nss_lt_name: - name = va_arg(ap, char *); - break; - case nss_lt_id: - net = va_arg(ap, uint32_t); - type = va_arg(ap, int); - break; - case nss_lt_all: - break; - default: - /* should be unreachable */ - return (NS_UNAVAIL); - } - - ne = va_arg(ap, struct netent *); - orig_buf = va_arg(ap, char *); - orig_buf_size = va_arg(ap, size_t); - - desired_size = _ALIGNBYTES + sizeof(struct netent) + sizeof(char *); - if (ne->n_name != NULL) - desired_size += strlen(ne->n_name) + 1; - - if (ne->n_aliases != NULL) { - aliases_size = 0; - for (alias = ne->n_aliases; *alias; ++alias) { - desired_size += strlen(*alias) + 1; - ++aliases_size; - } - - desired_size += _ALIGNBYTES + - (aliases_size + 1) * sizeof(char *); - } - - if (*buffer_size < desired_size) { - /* this assignment is here for future use */ - *buffer_size = desired_size; - return (NS_RETURN); - } - - memcpy(&new_ne, ne, sizeof(struct netent)); - - *buffer_size = desired_size; - memset(buffer, 0, desired_size); - p = buffer + sizeof(struct netent) + sizeof(char *); - memcpy(buffer + sizeof(struct netent), &p, sizeof(char *)); - p = (char *)_ALIGN(p); - - if (new_ne.n_name != NULL) { - size = strlen(new_ne.n_name); - memcpy(p, new_ne.n_name, size); - new_ne.n_name = p; - p += size + 1; - } - - if (new_ne.n_aliases != NULL) { - p = (char *)_ALIGN(p); - memcpy(p, new_ne.n_aliases, sizeof(char *) * aliases_size); - new_ne.n_aliases = (char **)p; - p += sizeof(char *) * (aliases_size + 1); - - for (alias = new_ne.n_aliases; *alias; ++alias) { - size = strlen(*alias); - memcpy(p, *alias, size); - *alias = p; - p += size + 1; - } - } - - memcpy(buffer, &new_ne, sizeof(struct netent)); - return (NS_SUCCESS); -} - -static int -net_unmarshal_func(char *buffer, size_t buffer_size, void *retval, va_list ap, - void *cache_mdata) -{ - char *name; - uint32_t net; - int type; - struct netent *ne; - char *orig_buf; - size_t orig_buf_size; - int *ret_errno; - - char *p; - char **alias; - - switch ((enum nss_lookup_type)cache_mdata) { - case nss_lt_name: - name = va_arg(ap, char *); - break; - case nss_lt_id: - net = va_arg(ap, uint32_t); - type = va_arg(ap, int); - break; - case nss_lt_all: - break; - default: - /* should be unreachable */ - return (NS_UNAVAIL); - } - - ne = va_arg(ap, struct netent *); - orig_buf = va_arg(ap, char *); - orig_buf_size = va_arg(ap, size_t); - ret_errno = va_arg(ap, int *); - - if (orig_buf_size < - buffer_size - sizeof(struct netent) - sizeof(char *)) { - *ret_errno = ERANGE; - return (NS_RETURN); - } - - memcpy(ne, buffer, sizeof(struct netent)); - memcpy(&p, buffer + sizeof(struct netent), sizeof(char *)); - - orig_buf = (char *)_ALIGN(orig_buf); - memcpy(orig_buf, buffer + sizeof(struct netent) + sizeof(char *) + - _ALIGN(p) - (size_t)p, - buffer_size - sizeof(struct netent) - sizeof(char *) - - _ALIGN(p) + (size_t)p); - p = (char *)_ALIGN(p); - - NS_APPLY_OFFSET(ne->n_name, orig_buf, p, char *); - if (ne->n_aliases != NULL) { - NS_APPLY_OFFSET(ne->n_aliases, orig_buf, p, char **); - - for (alias = ne->n_aliases; *alias; ++alias) - NS_APPLY_OFFSET(*alias, orig_buf, p, char *); - } - - if (retval != NULL) - *((struct netent **)retval) = ne; - - return (NS_SUCCESS); -} -#endif /* NS_CACHING */ - -static void -netent_data_free(void *ptr) -{ - struct netent_data *ned = ptr; - - if (ned == NULL) - return; - ned->stayopen = 0; - _endnethtent(ned); - free(ned); -} - -static void -netdata_free(void *ptr) -{ - free(ptr); -} - -int -__copy_netent(struct netent *ne, struct netent *nptr, char *buf, size_t buflen) -{ - char *cp; - int i, n; - int numptr, len; - - /* Find out the amount of space required to store the answer. */ - numptr = 1; /* NULL ptr */ - len = (char *)ALIGN(buf) - buf; - for (i = 0; ne->n_aliases[i]; i++, numptr++) { - len += strlen(ne->n_aliases[i]) + 1; - } - len += strlen(ne->n_name) + 1; - len += numptr * sizeof(char*); - - if (len > (int)buflen) { - errno = ERANGE; - return (-1); - } - - /* copy net value and type */ - nptr->n_addrtype = ne->n_addrtype; - nptr->n_net = ne->n_net; - - cp = (char *)ALIGN(buf) + numptr * sizeof(char *); - - /* copy official name */ - n = strlen(ne->n_name) + 1; - strcpy(cp, ne->n_name); - nptr->n_name = cp; - cp += n; - - /* copy aliases */ - nptr->n_aliases = (char **)ALIGN(buf); - for (i = 0 ; ne->n_aliases[i]; i++) { - n = strlen(ne->n_aliases[i]) + 1; - strcpy(cp, ne->n_aliases[i]); - nptr->n_aliases[i] = cp; - cp += n; - } - nptr->n_aliases[i] = NULL; - - return (0); -} - -int -getnetbyname_r(const char *name, struct netent *ne, char *buffer, - size_t buflen, struct netent **result, int *h_errorp) -{ -#ifdef NS_CACHING - static const nss_cache_info cache_info = - NS_COMMON_CACHE_INFO_INITIALIZER( - networks, (void *)nss_lt_name, - net_id_func, net_marshal_func, net_unmarshal_func); -#endif - static const ns_dtab dtab[] = { - NS_FILES_CB(_ht_getnetbyname, NULL) - { NSSRC_DNS, _dns_getnetbyname, NULL }, - NS_NIS_CB(_nis_getnetbyname, NULL) /* force -DHESIOD */ -#ifdef NS_CACHING - NS_CACHE_CB(&cache_info) -#endif - { 0 } - }; - int rval, ret_errno = 0; - - rval = _nsdispatch((void *)result, dtab, NSDB_NETWORKS, - "getnetbyname_r", default_src, name, ne, buffer, buflen, - &ret_errno, h_errorp); - - if (rval != NS_SUCCESS) { - errno = ret_errno; - return ((ret_errno != 0) ? ret_errno : -1); - } - return (0); -} - -int -getnetbyaddr_r(uint32_t addr, int af, struct netent *ne, char *buffer, - size_t buflen, struct netent **result, int *h_errorp) -{ -#ifdef NS_CACHING - static const nss_cache_info cache_info = - NS_COMMON_CACHE_INFO_INITIALIZER( - networks, (void *)nss_lt_id, - net_id_func, net_marshal_func, net_unmarshal_func); -#endif - static const ns_dtab dtab[] = { - NS_FILES_CB(_ht_getnetbyaddr, NULL) - { NSSRC_DNS, _dns_getnetbyaddr, NULL }, - NS_NIS_CB(_nis_getnetbyaddr, NULL) /* force -DHESIOD */ -#ifdef NS_CACHING - NS_CACHE_CB(&cache_info) -#endif - { 0 } - }; - int rval, ret_errno = 0; - - rval = _nsdispatch((void *)result, dtab, NSDB_NETWORKS, - "getnetbyaddr_r", default_src, addr, af, ne, buffer, buflen, - &ret_errno, h_errorp); - - if (rval != NS_SUCCESS) { - errno = ret_errno; - return ((ret_errno != 0) ? ret_errno : -1); - } - return (0); -} - -struct netent * -getnetbyname(const char *name) -{ - struct netdata *nd; - struct netent *rval; - int ret_h_errno; - - if ((nd = __netdata_init()) == NULL) - return (NULL); - if (getnetbyname_r(name, &nd->net, nd->data, sizeof(nd->data), &rval, - &ret_h_errno) != 0) - return (NULL); - return (rval); -} - -struct netent * -getnetbyaddr(uint32_t addr, int af) -{ - struct netdata *nd; - struct netent *rval; - int ret_h_errno; - - if ((nd = __netdata_init()) == NULL) - return (NULL); - if (getnetbyaddr_r(addr, af, &nd->net, nd->data, sizeof(nd->data), - &rval, &ret_h_errno) != 0) - return (NULL); - return (rval); -} - -void -setnetent(int stayopen) -{ - struct netent_data *ned; - - if ((ned = __netent_data_init()) == NULL) - return; - _setnethtent(stayopen, ned); - _setnetdnsent(stayopen); -} - -void -endnetent(void) -{ - struct netent_data *ned; - - if ((ned = __netent_data_init()) == NULL) - return; - _endnethtent(ned); - _endnetdnsent(); -} |
