diff options
Diffstat (limited to 'lib/liblwres/gethost.c')
| -rw-r--r-- | lib/liblwres/gethost.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/lib/liblwres/gethost.c b/lib/liblwres/gethost.c deleted file mode 100644 index 32c8359b4..000000000 --- a/lib/liblwres/gethost.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * Copyright (C) 2000, 2001 Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM - * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL - * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, - * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING - * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, - * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION - * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -/* $Id: gethost.c,v 1.1 2004/03/15 20:35:25 as Exp $ */ - -#include <config.h> - -#include <errno.h> -#include <string.h> - -#include <lwres/net.h> -#include <lwres/netdb.h> - -#include "assert_p.h" - -#define LWRES_ALIGNBYTES (sizeof(char *) - 1) -#define LWRES_ALIGN(p) \ - (((unsigned long)(p) + LWRES_ALIGNBYTES) &~ LWRES_ALIGNBYTES) - -static struct hostent *he = NULL; -static int copytobuf(struct hostent *, struct hostent *, char *, int); - -struct hostent * -lwres_gethostbyname(const char *name) { - - if (he != NULL) - lwres_freehostent(he); - - he = lwres_getipnodebyname(name, AF_INET, 0, &lwres_h_errno); - return (he); -} - -struct hostent * -lwres_gethostbyname2(const char *name, int af) { - if (he != NULL) - lwres_freehostent(he); - - he = lwres_getipnodebyname(name, af, 0, &lwres_h_errno); - return (he); -} - -struct hostent * -lwres_gethostbyaddr(const char *addr, int len, int type) { - - if (he != NULL) - lwres_freehostent(he); - - he = lwres_getipnodebyaddr(addr, len, type, &lwres_h_errno); - return (he); -} - -struct hostent * -lwres_gethostent(void) { - if (he != NULL) - lwres_freehostent(he); - - return (NULL); -} - -void -lwres_sethostent(int stayopen) { - /* - * Empty. - */ - UNUSED(stayopen); -} - -void -lwres_endhostent(void) { - /* - * Empty. - */ -} - -struct hostent * -lwres_gethostbyname_r(const char *name, struct hostent *resbuf, - char *buf, int buflen, int *error) -{ - struct hostent *he; - int res; - - he = lwres_getipnodebyname(name, AF_INET, 0, error); - if (he == NULL) - return (NULL); - res = copytobuf(he, resbuf, buf, buflen); - lwres_freehostent(he); - if (res != 0) { - errno = ERANGE; - return (NULL); - } - return (resbuf); -} - -struct hostent * -lwres_gethostbyaddr_r(const char *addr, int len, int type, - struct hostent *resbuf, char *buf, int buflen, - int *error) -{ - struct hostent *he; - int res; - - he = lwres_getipnodebyaddr(addr, len, type, error); - if (he == NULL) - return (NULL); - res = copytobuf(he, resbuf, buf, buflen); - lwres_freehostent(he); - if (res != 0) { - errno = ERANGE; - return (NULL); - } - return (resbuf); -} - -struct hostent * -lwres_gethostent_r(struct hostent *resbuf, char *buf, int buflen, int *error) { - UNUSED(resbuf); - UNUSED(buf); - UNUSED(buflen); - *error = 0; - return (NULL); -} - -void -lwres_sethostent_r(int stayopen) { - /* - * Empty. - */ - UNUSED(stayopen); -} - -void -lwres_endhostent_r(void) { - /* - * Empty. - */ -} - -static int -copytobuf(struct hostent *he, struct hostent *hptr, char *buf, int buflen) { - char *cp; - char **ptr; - int i, n; - int nptr, len; - - /* - * Find out the amount of space required to store the answer. - */ - nptr = 2; /* NULL ptrs */ - len = (char *)LWRES_ALIGN(buf) - buf; - for (i = 0; he->h_addr_list[i]; i++, nptr++) { - len += he->h_length; - } - for (i = 0; he->h_aliases[i]; i++, nptr++) { - len += strlen(he->h_aliases[i]) + 1; - } - len += strlen(he->h_name) + 1; - len += nptr * sizeof(char*); - - if (len > buflen) { - return (-1); - } - - /* - * Copy address size and type. - */ - hptr->h_addrtype = he->h_addrtype; - n = hptr->h_length = he->h_length; - - ptr = (char **)LWRES_ALIGN(buf); - cp = (char *)LWRES_ALIGN(buf) + nptr * sizeof(char *); - - /* - * Copy address list. - */ - hptr->h_addr_list = ptr; - for (i = 0; he->h_addr_list[i]; i++, ptr++) { - memcpy(cp, he->h_addr_list[i], n); - hptr->h_addr_list[i] = cp; - cp += n; - } - hptr->h_addr_list[i] = NULL; - ptr++; - - /* - * Copy official name. - */ - n = strlen(he->h_name) + 1; - strcpy(cp, he->h_name); - hptr->h_name = cp; - cp += n; - - /* - * Copy aliases. - */ - hptr->h_aliases = ptr; - for (i = 0; he->h_aliases[i]; i++) { - n = strlen(he->h_aliases[i]) + 1; - strcpy(cp, he->h_aliases[i]); - hptr->h_aliases[i] = cp; - cp += n; - } - hptr->h_aliases[i] = NULL; - - return (0); -} |