200 lines
4.1 KiB
C
200 lines
4.1 KiB
C
/*
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* Copyright (c) 1996,1999 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(LINT) && !defined(CODECENTER)
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static const char rcsid[] = "$Id: getpwent.c,v 1.21 2000/02/21 21:40:56 vixie Exp $";
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#endif
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/* Imports */
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#include "port_before.h"
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#if !defined(WANT_IRS_PW) || defined(__BIND_NOSTATIC)
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static int __bind_irs_pw_unneeded;
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#else
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <errno.h>
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#include <pwd.h>
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#include <resolv.h>
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#include <stdio.h>
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#include <irs.h>
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#include "port_after.h"
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#include "irs_data.h"
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/* Forward */
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static struct net_data * init(void);
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/* Public */
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struct passwd *
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getpwent(void) {
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struct net_data *net_data = init();
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return (getpwent_p(net_data));
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}
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struct passwd *
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getpwnam(const char *name) {
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struct net_data *net_data = init();
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return (getpwnam_p(name, net_data));
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}
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struct passwd *
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getpwuid(uid_t uid) {
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struct net_data *net_data = init();
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return (getpwuid_p(uid, net_data));
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}
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int
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setpassent(int stayopen) {
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struct net_data *net_data = init();
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return (setpassent_p(stayopen, net_data));
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}
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#ifdef SETPWENT_VOID
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void
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setpwent() {
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struct net_data *net_data = init();
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setpwent_p(net_data);
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}
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#else
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int
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setpwent() {
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struct net_data *net_data = init();
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return (setpwent_p(net_data));
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}
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#endif
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void
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endpwent() {
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struct net_data *net_data = init();
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endpwent_p(net_data);
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}
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/* Shared private. */
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struct passwd *
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getpwent_p(struct net_data *net_data) {
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struct irs_pw *pw;
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if (!net_data || !(pw = net_data->pw))
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return (NULL);
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net_data->pw_last = (*pw->next)(pw);
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return (net_data->pw_last);
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}
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struct passwd *
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getpwnam_p(const char *name, struct net_data *net_data) {
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struct irs_pw *pw;
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if (!net_data || !(pw = net_data->pw))
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return (NULL);
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if (net_data->pw_stayopen && net_data->pw_last &&
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!strcmp(net_data->pw_last->pw_name, name))
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return (net_data->pw_last);
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net_data->pw_last = (*pw->byname)(pw, name);
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if (!net_data->pw_stayopen)
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endpwent();
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return (net_data->pw_last);
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}
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struct passwd *
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getpwuid_p(uid_t uid, struct net_data *net_data) {
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struct irs_pw *pw;
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if (!net_data || !(pw = net_data->pw))
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return (NULL);
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if (net_data->pw_stayopen && net_data->pw_last &&
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net_data->pw_last->pw_uid == uid)
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return (net_data->pw_last);
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net_data->pw_last = (*pw->byuid)(pw, uid);
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if (!net_data->pw_stayopen)
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endpwent();
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return (net_data->pw_last);
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}
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int
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setpassent_p(int stayopen, struct net_data *net_data) {
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struct irs_pw *pw;
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if (!net_data || !(pw = net_data->pw))
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return (0);
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(*pw->rewind)(pw);
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net_data->pw_stayopen = (stayopen != 0);
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if (stayopen == 0)
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net_data_minimize(net_data);
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return (1);
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}
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#ifdef SETPWENT_VOID
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void
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setpwent_p(struct net_data *net_data) {
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(void) setpassent_p(0, net_data);
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}
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#else
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int
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setpwent_p(struct net_data *net_data) {
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return (setpassent_p(0, net_data));
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}
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#endif
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void
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endpwent_p(struct net_data *net_data) {
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struct irs_pw *pw;
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if ((net_data != NULL) && ((pw = net_data->pw) != NULL))
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(*pw->minimize)(pw);
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}
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/* Private */
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static struct net_data *
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init() {
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struct net_data *net_data;
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if (!(net_data = net_data_init(NULL)))
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goto error;
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if (!net_data->pw) {
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net_data->pw = (*net_data->irs->pw_map)(net_data->irs);
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if (!net_data->pw || !net_data->res) {
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error:
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errno = EIO;
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return (NULL);
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}
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(*net_data->pw->res_set)(net_data->pw, net_data->res, NULL);
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}
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return (net_data);
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}
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#endif /* WANT_IRS_PW */
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