6b6ac9438f
package does have BXA export approval, but the licensing strings on the dnssafe code are a bit unpleasant. The crypto is easy to restore and bind will run without it - just without full dnssec support. Obtained from: The Internet Software Consortium (www.isc.org)
192 lines
4.5 KiB
C
192 lines
4.5 KiB
C
/*
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* Copyright (c) 1998-1999 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static const char rcsid[] = "$Id: getnetent_r.c,v 8.4 1999/01/18 07:46:52 vixie Exp $";
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#endif /* LIBC_SCCS and not lint */
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#include <port_before.h>
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#if !defined(_REENTRANT) || !defined(DO_PTHREADS)
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static int getnetent_r_not_required = 0;
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#else
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <sys/param.h>
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#include <port_after.h>
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#ifdef NET_R_RETURN
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static NET_R_RETURN
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copy_netent(struct netent *, struct netent *, NET_R_COPY_ARGS);
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NET_R_RETURN
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getnetbyname_r(const char *name, struct netent *nptr, NET_R_ARGS) {
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struct netent *ne = getnetbyname(name);
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if (ne == NULL)
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return (NET_R_BAD);
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return (copy_netent(ne, nptr, NET_R_COPY));
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}
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#ifndef GETNETBYADDR_ADDR_T
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#define GETNETBYADDR_ADDR_T long
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#endif
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NET_R_RETURN
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getnetbyaddr_r(GETNETBYADDR_ADDR_T addr, int type, struct netent *nptr, NET_R_ARGS) {
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struct netent *ne = getnetbyaddr(addr, type);
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if (ne == NULL)
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return (NET_R_BAD);
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return (copy_netent(ne, nptr, NET_R_COPY));
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}
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/*
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* These assume a single context is in operation per thread.
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* If this is not the case we will need to call irs directly
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* rather than through the base functions.
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*/
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NET_R_RETURN
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getnetent_r(struct netent *nptr, NET_R_ARGS) {
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struct netent *ne = getnetent();
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if (ne == NULL)
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return (NET_R_BAD);
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return (copy_netent(ne, nptr, NET_R_COPY));
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}
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NET_R_SET_RETURN
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#ifdef NET_R_ENT_ARGS
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setnetent_r(int stay_open, NET_R_ENT_ARGS)
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#else
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setnetent_r(int stay_open)
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#endif
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{
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setnetent(stay_open);
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#ifdef NET_R_SET_RESULT
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return (NET_R_SET_RESULT);
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#endif
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}
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NET_R_END_RETURN
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#ifdef NET_R_ENT_ARGS
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endnetent_r(NET_R_ENT_ARGS)
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#else
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endnetent_r()
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#endif
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{
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endnetent();
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NET_R_END_RESULT(NET_R_OK);
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}
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/* Private */
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#ifndef NETENT_DATA
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static NET_R_RETURN
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copy_netent(struct netent *ne, struct netent *nptr, NET_R_COPY_ARGS) {
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char *cp;
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int i, n;
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int numptr, len;
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/* Find out the amount of space required to store the answer. */
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numptr = 1; /* NULL ptr */
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len = (char *)ALIGN(buf) - buf;
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for (i = 0; ne->n_aliases[i]; i++, numptr++) {
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len += strlen(ne->n_aliases[i]) + 1;
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}
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len += strlen(ne->n_name) + 1;
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len += numptr * sizeof(char*);
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if (len > buflen) {
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errno = ERANGE;
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return (NET_R_BAD);
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}
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/* copy net value and type */
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nptr->n_addrtype = ne->n_addrtype;
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nptr->n_net = ne->n_net;
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cp = (char *)ALIGN(buf) + numptr * sizeof(char *);
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/* copy official name */
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n = strlen(ne->n_name) + 1;
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strcpy(cp, ne->n_name);
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nptr->n_name = cp;
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cp += n;
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/* copy aliases */
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nptr->n_aliases = (char **)ALIGN(buf);
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for (i = 0 ; ne->n_aliases[i]; i++) {
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n = strlen(ne->n_aliases[i]) + 1;
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strcpy(cp, ne->n_aliases[i]);
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nptr->n_aliases[i] = cp;
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cp += n;
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}
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nptr->n_aliases[i] = NULL;
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return (NET_R_OK);
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}
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#else /* !NETENT_DATA */
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static int
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copy_netent(struct netent *ne, struct netent *nptr, NET_R_COPY_ARGS) {
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char *cp, *eob;
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int i, n;
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/* copy net value and type */
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nptr->n_addrtype = ne->n_addrtype;
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nptr->n_net = ne->n_net;
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/* copy official name */
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cp = ndptr->line;
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eob = ndptr->line + sizeof(ndptr->line);
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if ((n = strlen(ne->n_name) + 1) < (eob - cp)) {
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strcpy(cp, ne->n_name);
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nptr->n_name = cp;
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cp += n;
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} else {
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return (-1);
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}
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/* copy aliases */
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i = 0;
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nptr->n_aliases = ndptr->net_aliases;
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while (ne->n_aliases[i] && i < (_MAXALIASES-1)) {
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if ((n = strlen(ne->n_aliases[i]) + 1) < (eob - cp)) {
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strcpy(cp, ne->n_aliases[i]);
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nptr->n_aliases[i] = cp;
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cp += n;
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} else {
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break;
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}
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i++;
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}
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nptr->n_aliases[i] = NULL;
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return (NET_R_OK);
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}
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#endif /* !NETENT_DATA */
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#else /* NET_R_RETURN */
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static int getnetent_r_unknown_systemm = 0;
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#endif /* NET_R_RETURN */
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#endif /* !defined(_REENTRANT) || !defined(DO_PTHREADS) */
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