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/*
* 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static const char rcsid[] = "$Id: getpwent_r.c,v 8.3 1999/01/08 19:24:33 vixie 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>
#include <pwd.h>
#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 (-1);
}
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 (-1);
}
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
setpwent_r(PASS_R_ENT_ARGS) {
setpwent();
#ifdef PASS_R_SET_RESULT
return (PASS_R_SET_RESULT);
#endif
}
PASS_R_END_RETURN
endpwent_r(PASS_R_ENT_ARGS) {
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 i, n;
int numptr, 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 (-1);
}
/* 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_systemm = 0;
#endif /* PASS_R_RETURN */
#endif /* !def(_REENTRANT) || !def(DO_PTHREADS) || !def(WANT_IRS_PW) */
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