diff options
Diffstat (limited to 'usr/src/lib/libresolv2/common/irs/getpwent_r.c')
| -rw-r--r-- | usr/src/lib/libresolv2/common/irs/getpwent_r.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/usr/src/lib/libresolv2/common/irs/getpwent_r.c b/usr/src/lib/libresolv2/common/irs/getpwent_r.c new file mode 100644 index 0000000000..4e3b8a2578 --- /dev/null +++ b/usr/src/lib/libresolv2/common/irs/getpwent_r.c @@ -0,0 +1,283 @@ +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* + * 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM 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. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#if defined(LIBC_SCCS) && !defined(lint) +static const char rcsid[] = + "$Id: getpwent_r.c,v 8.6 2001/11/01 08:02:15 marka Exp $"; +#endif /* LIBC_SCCS and not lint */ + +#include <port_before.h> +#if !defined(_REENTRANT) || !defined(DO_PTHREADS) || !defined(WANT_IRS_PW) + static int getpwent_r_not_required = 0; +#else +#include <errno.h> +#include <string.h> +#include <stdio.h> +#include <sys/types.h> +#if (defined(POSIX_GETPWNAM_R) || defined(POSIX_GETPWUID_R)) +#if defined(_POSIX_PTHREAD_SEMANTICS) + /* turn off solaris remapping in <grp.h> */ +#undef _POSIX_PTHREAD_SEMANTICS +#include <pwd.h> +#define _POSIX_PTHREAD_SEMANTICS 1 +#else +#define _UNIX95 1 +#include <pwd.h> +#endif +#else +#include <pwd.h> +#endif +#include <port_after.h> + +#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, size_t 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; + + 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; + + 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) */ |