/* $NetBSD: getpwent.c,v 1.1.1.2 2012/09/09 16:07:55 christos Exp $ */ /* * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") * Copyright (c) 1996,1999 by 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 ISC DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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. */ #if !defined(LINT) && !defined(CODECENTER) static const char rcsid[] = "Id: getpwent.c,v 1.3 2005/04/27 04:56:26 sra Exp "; #endif /* Imports */ #include "port_before.h" #if !defined(WANT_IRS_PW) || defined(__BIND_NOSTATIC) static int __bind_irs_pw_unneeded; #else #include #include #include #include #include #include #include #include #include #include "port_after.h" #include "irs_data.h" /* Forward */ static struct net_data * init(void); /* Public */ struct passwd * getpwent(void) { struct net_data *net_data = init(); return (getpwent_p(net_data)); } struct passwd * getpwnam(const char *name) { struct net_data *net_data = init(); return (getpwnam_p(name, net_data)); } struct passwd * getpwuid(uid_t uid) { struct net_data *net_data = init(); return (getpwuid_p(uid, net_data)); } int setpassent(int stayopen) { struct net_data *net_data = init(); return (setpassent_p(stayopen, net_data)); } #ifdef SETPWENT_VOID void setpwent() { struct net_data *net_data = init(); setpwent_p(net_data); } #else int setpwent() { struct net_data *net_data = init(); return (setpwent_p(net_data)); } #endif void endpwent() { struct net_data *net_data = init(); endpwent_p(net_data); } /* Shared private. */ struct passwd * getpwent_p(struct net_data *net_data) { struct irs_pw *pw; if (!net_data || !(pw = net_data->pw)) return (NULL); net_data->pw_last = (*pw->next)(pw); return (net_data->pw_last); } struct passwd * getpwnam_p(const char *name, struct net_data *net_data) { struct irs_pw *pw; if (!net_data || !(pw = net_data->pw)) return (NULL); if (net_data->pw_stayopen && net_data->pw_last && !strcmp(net_data->pw_last->pw_name, name)) return (net_data->pw_last); net_data->pw_last = (*pw->byname)(pw, name); if (!net_data->pw_stayopen) endpwent(); return (net_data->pw_last); } struct passwd * getpwuid_p(uid_t uid, struct net_data *net_data) { struct irs_pw *pw; if (!net_data || !(pw = net_data->pw)) return (NULL); if (net_data->pw_stayopen && net_data->pw_last && net_data->pw_last->pw_uid == uid) return (net_data->pw_last); net_data->pw_last = (*pw->byuid)(pw, uid); if (!net_data->pw_stayopen) endpwent(); return (net_data->pw_last); } int setpassent_p(int stayopen, struct net_data *net_data) { struct irs_pw *pw; if (!net_data || !(pw = net_data->pw)) return (0); (*pw->rewind)(pw); net_data->pw_stayopen = (stayopen != 0); if (stayopen == 0) net_data_minimize(net_data); return (1); } #ifdef SETPWENT_VOID void setpwent_p(struct net_data *net_data) { (void) setpassent_p(0, net_data); } #else int setpwent_p(struct net_data *net_data) { return (setpassent_p(0, net_data)); } #endif void endpwent_p(struct net_data *net_data) { struct irs_pw *pw; if ((net_data != NULL) && ((pw = net_data->pw) != NULL)) (*pw->minimize)(pw); } /* Private */ static struct net_data * init() { struct net_data *net_data; if (!(net_data = net_data_init(NULL))) goto error; if (!net_data->pw) { net_data->pw = (*net_data->irs->pw_map)(net_data->irs); if (!net_data->pw || !net_data->res) { error: errno = EIO; return (NULL); } (*net_data->pw->res_set)(net_data->pw, net_data->res, NULL); } return (net_data); } #endif /* WANT_IRS_PW */ /*! \file */