/* $OpenBSD: getrrsetbyname.c,v 1.6 2015/09/14 07:38:37 guenther Exp $ */ /* * Copyright (c) 2012 Eric Faurot <eric@openbsd.org> * * 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 THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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. */ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <netdb.h> #include <asr.h> #include <errno.h> #include <resolv.h> #include <stdlib.h> int getrrsetbyname(const char *name, unsigned int class, unsigned int type, unsigned int flags, struct rrsetinfo **res) { struct asr_query *as; struct asr_result ar; int r, saved_errno = errno; res_init(); as = getrrsetbyname_async(name, class, type, flags, NULL); if (as == NULL) { r = (errno == ENOMEM) ? ERRSET_NOMEMORY : ERRSET_FAIL; errno = saved_errno; return (r); } asr_run_sync(as, &ar); *res = ar.ar_rrsetinfo; return (ar.ar_rrset_errno); } /* from net/getrrsetbyname.c */ void freerrset(struct rrsetinfo *rrset) { u_int16_t i; if (rrset == NULL) return; if (rrset->rri_rdatas) { 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); } if (rrset->rri_sigs) { 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); } if (rrset->rri_name) free(rrset->rri_name); free(rrset); } DEF_WEAK(freerrset);