/* $NetBSD: getpwent_r.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) 1998-1999 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(LIBC_SCCS) && !defined(lint) static const char rcsid[] = "Id: getpwent_r.c,v 1.8 2005/04/27 04:56:26 sra Exp "; #endif /* LIBC_SCCS and not lint */ #include #if !defined(_REENTRANT) || !defined(DO_PTHREADS) || !defined(WANT_IRS_PW) static int getpwent_r_not_required = 0; #else #include #include #include #include #if (defined(POSIX_GETPWNAM_R) || defined(POSIX_GETPWUID_R)) #if defined(_POSIX_PTHREAD_SEMANTICS) /* turn off solaris remapping in */ #undef _POSIX_PTHREAD_SEMANTICS #include #define _POSIX_PTHREAD_SEMANTICS 1 #else #define _UNIX95 1 #include #endif #else #include #endif #include #ifdef PASS_R_RETURN static int copy_passwd(struct passwd *, struct passwd *, char *buf, int buflen); /* POSIX 1003.1c */ #ifdef POSIX_GETPWNAM_R int __posix_getpwnam_r(const char *login, struct passwd *pwptr, char *buf, size_t buflen, struct passwd **result) { #else int getpwnam_r(const char *login, struct passwd *pwptr, char *buf, size_t buflen, struct passwd **result) { #endif struct passwd *pw = getpwnam(login); int res; if (pw == NULL) { *result = NULL; return (0); } res = copy_passwd(pw, pwptr, buf, buflen); *result = res ? NULL : pwptr; return (res); } #ifdef POSIX_GETPWNAM_R struct passwd * getpwnam_r(const char *login, struct passwd *pwptr, char *buf, int buflen) { struct passwd *pw = getpwnam(login); int res; if (pw == NULL) return (NULL); res = copy_passwd(pw, pwptr, buf, buflen); return (res ? NULL : pwptr); } #endif /* POSIX 1003.1c */ #ifdef POSIX_GETPWUID_R int __posix_getpwuid_r(uid_t uid, struct passwd *pwptr, char *buf, int buflen, struct passwd **result) { #else int getpwuid_r(uid_t uid, struct passwd *pwptr, char *buf, size_t buflen, struct passwd **result) { #endif struct passwd *pw = getpwuid(uid); int res; if (pw == NULL) { *result = NULL; return (0); } res = copy_passwd(pw, pwptr, buf, buflen); *result = res ? NULL : pwptr; return (res); } #ifdef POSIX_GETPWUID_R struct passwd * getpwuid_r(uid_t uid, struct passwd *pwptr, char *buf, int buflen) { struct passwd *pw = getpwuid(uid); int res; if (pw == NULL) return (NULL); res = copy_passwd(pw, pwptr, buf, buflen); return (res ? NULL : pwptr); } #endif /*% * 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. */ PASS_R_RETURN getpwent_r(struct passwd *pwptr, PASS_R_ARGS) { struct passwd *pw = getpwent(); int res = 0; if (pw == NULL) return (PASS_R_BAD); res = copy_passwd(pw, pwptr, buf, buflen); return (res ? PASS_R_BAD : PASS_R_OK); } PASS_R_SET_RETURN #ifdef PASS_R_ENT_ARGS setpassent_r(int stayopen, PASS_R_ENT_ARGS) #else setpassent_r(int stayopen) #endif { setpassent(stayopen); #ifdef PASS_R_SET_RESULT return (PASS_R_SET_RESULT); #endif } PASS_R_SET_RETURN #ifdef PASS_R_ENT_ARGS setpwent_r(PASS_R_ENT_ARGS) #else setpwent_r(void) #endif { setpwent(); #ifdef PASS_R_SET_RESULT return (PASS_R_SET_RESULT); #endif } PASS_R_END_RETURN #ifdef PASS_R_ENT_ARGS endpwent_r(PASS_R_ENT_ARGS) #else endpwent_r(void) #endif { endpwent(); PASS_R_END_RESULT(PASS_R_OK); } #ifdef HAS_FGETPWENT PASS_R_RETURN fgetpwent_r(FILE *f, struct passwd *pwptr, PASS_R_COPY_ARGS) { struct passwd *pw = fgetpwent(f); int res = 0; if (pw == NULL) return (PASS_R_BAD); res = copy_passwd(pw, pwptr, PASS_R_COPY); return (res ? PASS_R_BAD : PASS_R_OK ); } #endif /* Private */ static int copy_passwd(struct passwd *pw, struct passwd *pwptr, char *buf, int buflen) { char *cp; int n; int len; /* Find out the amount of space required to store the answer. */ len = strlen(pw->pw_name) + 1; len += strlen(pw->pw_passwd) + 1; #ifdef HAVE_PW_CLASS len += strlen(pw->pw_class) + 1; #endif len += strlen(pw->pw_gecos) + 1; len += strlen(pw->pw_dir) + 1; len += strlen(pw->pw_shell) + 1; if (len > buflen) { errno = ERANGE; return (ERANGE); } /* copy fixed atomic values*/ pwptr->pw_uid = pw->pw_uid; pwptr->pw_gid = pw->pw_gid; #ifdef HAVE_PW_CHANGE pwptr->pw_change = pw->pw_change; #endif #ifdef HAVE_PW_EXPIRE pwptr->pw_expire = pw->pw_expire; #endif cp = buf; /* copy official name */ n = strlen(pw->pw_name) + 1; strcpy(cp, pw->pw_name); pwptr->pw_name = cp; cp += n; /* copy password */ n = strlen(pw->pw_passwd) + 1; strcpy(cp, pw->pw_passwd); pwptr->pw_passwd = cp; cp += n; #ifdef HAVE_PW_CLASS /* copy class */ n = strlen(pw->pw_class) + 1; strcpy(cp, pw->pw_class); pwptr->pw_class = cp; cp += n; #endif /* copy gecos */ n = strlen(pw->pw_gecos) + 1; strcpy(cp, pw->pw_gecos); pwptr->pw_gecos = cp; cp += n; /* copy directory */ n = strlen(pw->pw_dir) + 1; strcpy(cp, pw->pw_dir); pwptr->pw_dir = cp; cp += n; /* copy login shell */ n = strlen(pw->pw_shell) + 1; strcpy(cp, pw->pw_shell); pwptr->pw_shell = cp; cp += n; return (0); } #else /* PASS_R_RETURN */ static int getpwent_r_unknown_system = 0; #endif /* PASS_R_RETURN */ #endif /* !def(_REENTRANT) || !def(DO_PTHREADS) || !def(WANT_IRS_PW) */ /*! \file */