/* $NetBSD: getnetgrent_r.c,v 1.1.1.2 2012/09/09 16:07:57 christos Exp $ */ /* * Copyright (C) 2004, 2005, 2008 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1998, 1999, 2001, 2003 Internet Software Consortium. * * Permission to use, copy, modify, and/or 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(LIBC_SCCS) && !defined(lint) static const char rcsid[] = "Id: getnetgrent_r.c,v 1.14 2008/11/14 02:36:51 marka Exp "; #endif /* LIBC_SCCS and not lint */ #include #if !defined(_REENTRANT) || !defined(DO_PTHREADS) static int getnetgrent_r_not_required = 0; #else #include #include #include #include #include #include #include #include #ifdef NGR_R_RETURN #ifndef NGR_R_PRIVATE #define NGR_R_PRIVATE 0 #endif static NGR_R_RETURN copy_protoent(NGR_R_CONST char **, NGR_R_CONST char **, NGR_R_CONST char **, const char *, const char *, const char *, NGR_R_COPY_ARGS); NGR_R_RETURN innetgr_r(const char *netgroup, const char *host, const char *user, const char *domain) { char *ng, *ho, *us, *dom; DE_CONST(netgroup, ng); DE_CONST(host, ho); DE_CONST(user, us); DE_CONST(domain, dom); return (innetgr(ng, ho, us, dom)); } /*% * These assume a single context is in operation per thread. * If this is not the case we will need to call irs directly * rather than through the base functions. */ NGR_R_RETURN getnetgrent_r(NGR_R_CONST char **machinep, NGR_R_CONST char **userp, NGR_R_CONST char **domainp, NGR_R_ARGS) { NGR_R_CONST char *mp, *up, *dp; int res = getnetgrent(&mp, &up, &dp); if (res != 1) return (res); return (copy_protoent(machinep, userp, domainp, mp, up, dp, NGR_R_COPY)); } #if NGR_R_PRIVATE == 2 struct private { char *buf; }; #endif NGR_R_SET_RETURN #ifdef NGR_R_SET_ARGS setnetgrent_r(NGR_R_SET_CONST char *netgroup, NGR_R_SET_ARGS) #else setnetgrent_r(NGR_R_SET_CONST char *netgroup) #endif { #if NGR_R_PRIVATE == 2 struct private *p; #endif char *tmp; #if defined(NGR_R_SET_ARGS) && NGR_R_PRIVATE == 0 UNUSED(buf); UNUSED(buflen); #endif DE_CONST(netgroup, tmp); setnetgrent(tmp); #if NGR_R_PRIVATE == 1 *buf = NULL; #elif NGR_R_PRIVATE == 2 *buf = p = malloc(sizeof(struct private)); if (p == NULL) #ifdef NGR_R_SET_RESULT return (NGR_R_BAD); #else return; #endif p->buf = NULL; #endif #ifdef NGR_R_SET_RESULT return (NGR_R_SET_RESULT); #endif } NGR_R_END_RETURN #ifdef NGR_R_END_ARGS endnetgrent_r(NGR_R_END_ARGS) #else endnetgrent_r(void) #endif { #if NGR_R_PRIVATE == 2 struct private *p = buf; #endif #if defined(NGR_R_SET_ARGS) && NGR_R_PRIVATE == 0 UNUSED(buf); UNUSED(buflen); #endif endnetgrent(); #if NGR_R_PRIVATE == 1 if (*buf != NULL) free(*buf); *buf = NULL; #elif NGR_R_PRIVATE == 2 if (p->buf != NULL) free(p->buf); free(p); #endif NGR_R_END_RESULT(NGR_R_OK); } /* Private */ static int copy_protoent(NGR_R_CONST char **machinep, NGR_R_CONST char **userp, NGR_R_CONST char **domainp, const char *mp, const char *up, const char *dp, NGR_R_COPY_ARGS) { #if NGR_R_PRIVATE == 2 struct private *p = buf; #endif char *cp; int n; int len; /* Find out the amount of space required to store the answer. */ len = 0; if (mp != NULL) len += strlen(mp) + 1; if (up != NULL) len += strlen(up) + 1; if (dp != NULL) len += strlen(dp) + 1; #if NGR_R_PRIVATE == 1 if (*buf != NULL) free(*buf); *buf = malloc(len); if (*buf == NULL) return(NGR_R_BAD); cp = *buf; #elif NGR_R_PRIVATE == 2 if (p->buf) free(p->buf); p->buf = malloc(len); if (p->buf == NULL) return(NGR_R_BAD); cp = p->buf; #else if (len > (int)buflen) { errno = ERANGE; return (NGR_R_BAD); } cp = buf; #endif if (mp != NULL) { n = strlen(mp) + 1; strcpy(cp, mp); *machinep = cp; cp += n; } else *machinep = NULL; if (up != NULL) { n = strlen(up) + 1; strcpy(cp, up); *userp = cp; cp += n; } else *userp = NULL; if (dp != NULL) { n = strlen(dp) + 1; strcpy(cp, dp); *domainp = cp; cp += n; } else *domainp = NULL; return (NGR_R_OK); } #else /* NGR_R_RETURN */ static int getnetgrent_r_unknown_system = 0; #endif /* NGR_R_RETURN */ #endif /* !defined(_REENTRANT) || !defined(DO_PTHREADS) */ /*! \file */