diff options
Diffstat (limited to 'lib/liblwres/getrrset.c')
| -rw-r--r-- | lib/liblwres/getrrset.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/lib/liblwres/getrrset.c b/lib/liblwres/getrrset.c deleted file mode 100644 index cf8359268..000000000 --- a/lib/liblwres/getrrset.c +++ /dev/null @@ -1,211 +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: getrrset.c,v 1.1 2004/03/15 20:35:25 as Exp $ */ - -#include <config.h> - -#include <string.h> -#include <errno.h> -#include <stdlib.h> - -#include <lwres/lwres.h> -#include <lwres/net.h> -#include <lwres/netdb.h> /* XXX #include <netdb.h> */ - -#include "assert_p.h" - -unsigned int -lwresult_to_result(lwres_result_t lwresult) { - switch (lwresult) { - case LWRES_R_SUCCESS: return (ERRSET_SUCCESS); - case LWRES_R_NOMEMORY: return (ERRSET_NOMEMORY); - case LWRES_R_NOTFOUND: return (ERRSET_NONAME); - case LWRES_R_TYPENOTFOUND: return (ERRSET_NODATA); - case LWRES_R_RETRY: return (ERRSET_RETRY); - default: return (ERRSET_FAIL); - } -} - -/* - * malloc / calloc functions that guarantee to only - * return NULL if there is an error, like they used - * to before the ANSI C committee broke them. - */ - -static void * -sane_malloc(size_t size) { - if (size == 0) - size = 1; - return (malloc(size)); -} - -static void * -sane_calloc(size_t number, size_t size) { - size_t len = number * size; - void *mem = sane_malloc(len); - if (mem != NULL) - memset(mem, 0, len); - return (mem); -} - -int -lwres_getrrsetbyname(const char *hostname, unsigned int rdclass, - unsigned int rdtype, unsigned int flags, - struct rrsetinfo **res) -{ - lwres_context_t *lwrctx = NULL; - lwres_result_t lwresult; - lwres_grbnresponse_t *response = NULL; - struct rrsetinfo *rrset = NULL; - unsigned int i; - unsigned int lwflags; - unsigned int result; - - if (rdclass > 0xffff || rdtype > 0xffff) { - result = ERRSET_INVAL; - goto fail; - } - - /* - * Don't allow queries of class or type ANY - */ - if (rdclass == 0xff || rdtype == 0xff) { - result = ERRSET_INVAL; - goto fail; - } - - lwresult = lwres_context_create(&lwrctx, NULL, NULL, NULL, 0); - if (lwresult != LWRES_R_SUCCESS) { - result = lwresult_to_result(lwresult); - goto fail; - } - (void) lwres_conf_parse(lwrctx, lwres_resolv_conf); - - /* - * If any input flags were defined, lwflags would be set here - * based on them - */ - UNUSED(flags); - lwflags = 0; - - lwresult = lwres_getrdatabyname(lwrctx, hostname, - (lwres_uint16_t)rdclass, - (lwres_uint16_t)rdtype, - lwflags, &response); - if (lwresult != LWRES_R_SUCCESS) { - result = lwresult_to_result(lwresult); - goto fail; - } - - rrset = sane_malloc(sizeof(struct rrsetinfo)); - if (rrset == NULL) { - result = ERRSET_NOMEMORY; - goto fail; - } - rrset->rri_name = NULL; - rrset->rri_rdclass = response->rdclass; - rrset->rri_rdtype = response->rdtype; - rrset->rri_ttl = response->ttl; - rrset->rri_flags = 0; - rrset->rri_nrdatas = 0; - rrset->rri_rdatas = NULL; - rrset->rri_nsigs = 0; - rrset->rri_sigs = NULL; - - rrset->rri_name = sane_malloc(response->realnamelen + 1); - if (rrset->rri_name == NULL) { - result = ERRSET_NOMEMORY; - goto fail; - } - strncpy(rrset->rri_name, response->realname, response->realnamelen); - rrset->rri_name[response->realnamelen] = 0; - - if ((response->flags & LWRDATA_VALIDATED) != 0) - rrset->rri_flags |= RRSET_VALIDATED; - - rrset->rri_nrdatas = response->nrdatas; - rrset->rri_rdatas = sane_calloc(rrset->rri_nrdatas, - sizeof(struct rdatainfo)); - if (rrset->rri_rdatas == NULL) { - result = ERRSET_NOMEMORY; - goto fail; - } - for (i = 0; i < rrset->rri_nrdatas; i++) { - rrset->rri_rdatas[i].rdi_length = response->rdatalen[i]; - rrset->rri_rdatas[i].rdi_data = - sane_malloc(rrset->rri_rdatas[i].rdi_length); - if (rrset->rri_rdatas[i].rdi_data == NULL) { - result = ERRSET_NOMEMORY; - goto fail; - } - memcpy(rrset->rri_rdatas[i].rdi_data, response->rdatas[i], - rrset->rri_rdatas[i].rdi_length); - } - rrset->rri_nsigs = response->nsigs; - rrset->rri_sigs = sane_calloc(rrset->rri_nsigs, - sizeof(struct rdatainfo)); - if (rrset->rri_sigs == NULL) { - result = ERRSET_NOMEMORY; - goto fail; - } - for (i = 0; i < rrset->rri_nsigs; i++) { - rrset->rri_sigs[i].rdi_length = response->siglen[i]; - rrset->rri_sigs[i].rdi_data = - sane_malloc(rrset->rri_sigs[i].rdi_length); - if (rrset->rri_sigs[i].rdi_data == NULL) { - result = ERRSET_NOMEMORY; - goto fail; - } - memcpy(rrset->rri_sigs[i].rdi_data, response->sigs[i], - rrset->rri_sigs[i].rdi_length); - } - - lwres_grbnresponse_free(lwrctx, &response); - lwres_context_destroy(&lwrctx); - *res = rrset; - return (ERRSET_SUCCESS); - fail: - if (rrset != NULL) - lwres_freerrset(rrset); - if (response != NULL) - lwres_grbnresponse_free(lwrctx, &response); - if (lwrctx != NULL) - lwres_context_destroy(&lwrctx); - return (result); - -} - -void -lwres_freerrset(struct rrsetinfo *rrset) { - unsigned int i; - for (i = 0; i < rrset->rri_nrdatas; i++) { - if (rrset->rri_rdatas[i].rdi_data == NULL) - break; - free(rrset->rri_rdatas[i].rdi_data); - } - free(rrset->rri_rdatas); - for (i = 0; i < rrset->rri_nsigs; i++) { - if (rrset->rri_sigs[i].rdi_data == NULL) - break; - free(rrset->rri_sigs[i].rdi_data); - } - free(rrset->rri_sigs); - free(rrset->rri_name); - free(rrset); -} - |