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3254235ecc
Submitted by: "Richard Seaman, Jr." <dick@tar.com> Native FreeBSD port of the linuxthreads library Includes added files and stuff you need to add to the rest of your system. This is for -current I'm sure Richard's older version might be a good place to start for a 3.x version.
145 lines
4.0 KiB
C
145 lines
4.0 KiB
C
/*
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* Copyright (c) 1999 Richard Seaman, Jr.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Richard Seaman, Jr.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY RICHARD SEAMAN, Jr. AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/types.h>
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#include <stddef.h>
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#include <string.h>
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#include <errno.h>
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#include <grp.h>
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#include "pthread.h"
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static pthread_mutex_t getgr_mutex = PTHREAD_MUTEX_INITIALIZER;
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static int
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convert (struct group *ret, struct group *result,
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char *buf, int buflen)
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{
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int len;
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int count;
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char **gr_mem;
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char *buf1;
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if (!buf) return -1;
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*result = *ret;
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result->gr_name = (char *) buf;
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/* This is the size. */
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len = strlen (ret->gr_name) + 1;
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if (len > buflen) return -1;
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buflen -= len;
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buf += len;
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strcpy (result->gr_name, ret->gr_name);
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result->gr_passwd = (char *) buf;
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/* This is the size. */
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len = strlen (ret->gr_passwd) + 1;
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if (len > buflen) return -1;
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buflen -= len;
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buf += len;
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strcpy (result->gr_passwd, ret->gr_passwd);
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count = 0;
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gr_mem = ret->gr_mem;
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while (*gr_mem){
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count++;
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gr_mem++;
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}
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len = sizeof (*gr_mem)*(count+1);
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if (len > buflen) return -1;
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buf1 = buf;
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buflen -= len;
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buf += len;
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gr_mem = ret->gr_mem;
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while (*gr_mem){
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len = strlen (*gr_mem) + 1;
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if (len > buflen) return -1;
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buf1 = buf;
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strcpy (buf, *gr_mem);
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buflen -= len;
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buf += len;
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buf1 += sizeof (buf1);
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gr_mem++;
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}
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buf1 = NULL;
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return 0;
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}
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int getgrnam_r (const char *name, struct group *result,
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char *buffer, size_t buflen,
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struct group ** resptr)
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{
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struct group * p;
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int retval;
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pthread_mutex_lock (&getgr_mutex);
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p = getgrnam (name);
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if (p == NULL) {
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*resptr = NULL;
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retval = ESRCH;
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} else
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if (convert (p, result, buffer, buflen) != 0) {
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*resptr = NULL;
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retval = ERANGE;
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} else {
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*resptr = result;
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retval = 0;
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}
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pthread_mutex_unlock (&getgr_mutex);
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return retval;
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}
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int getgrgid_r (uid_t uid, struct group *result,
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char *buffer, size_t buflen,
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struct group ** resptr)
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{
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struct group * p;
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int retval;
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pthread_mutex_lock (&getgr_mutex);
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p = getgrgid (uid);
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if (p == NULL) {
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*resptr = NULL;
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retval = ESRCH;
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} else
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if (convert (p, result, buffer, buflen) != 0) {
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*resptr = NULL;
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retval = ERANGE;
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} else {
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*resptr = result;
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retval = 0;
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}
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pthread_mutex_unlock (&getgr_mutex);
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return retval;
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}
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