mirror of
https://git.FreeBSD.org/ports.git
synced 2024-10-30 21:49:25 +00:00
145 lines
4.0 KiB
C
145 lines
4.0 KiB
C
|
/*
|
||
|
* Copyright (c) 1999 Richard Seaman, Jr.
|
||
|
* All rights reserved.
|
||
|
*
|
||
|
* Redistribution and use in source and binary forms, with or without
|
||
|
* modification, are permitted provided that the following conditions
|
||
|
* are met:
|
||
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
* notice, this list of conditions and the following disclaimer.
|
||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
* documentation and/or other materials provided with the distribution.
|
||
|
* 3. All advertising materials mentioning features or use of this software
|
||
|
* must display the following acknowledgement:
|
||
|
* This product includes software developed by Richard Seaman, Jr.
|
||
|
* 4. Neither the name of the author nor the names of any co-contributors
|
||
|
* may be used to endorse or promote products derived from this software
|
||
|
* without specific prior written permission.
|
||
|
*
|
||
|
* THIS SOFTWARE IS PROVIDED BY RICHARD SEAMAN, Jr. AND CONTRIBUTORS ``AS IS'' AND
|
||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
* SUCH DAMAGE.
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
#include <sys/types.h>
|
||
|
#include <stddef.h>
|
||
|
#include <string.h>
|
||
|
#include <errno.h>
|
||
|
#include <grp.h>
|
||
|
#include "pthread.h"
|
||
|
|
||
|
static pthread_mutex_t getgr_mutex = PTHREAD_MUTEX_INITIALIZER;
|
||
|
|
||
|
static int
|
||
|
convert (struct group *ret, struct group *result,
|
||
|
char *buf, int buflen)
|
||
|
{
|
||
|
int len;
|
||
|
int count;
|
||
|
char **gr_mem;
|
||
|
char *buf1;
|
||
|
|
||
|
if (!buf) return -1;
|
||
|
|
||
|
*result = *ret;
|
||
|
|
||
|
result->gr_name = (char *) buf;
|
||
|
/* This is the size. */
|
||
|
len = strlen (ret->gr_name) + 1;
|
||
|
if (len > buflen) return -1;
|
||
|
buflen -= len;
|
||
|
buf += len;
|
||
|
strcpy (result->gr_name, ret->gr_name);
|
||
|
|
||
|
result->gr_passwd = (char *) buf;
|
||
|
/* This is the size. */
|
||
|
len = strlen (ret->gr_passwd) + 1;
|
||
|
if (len > buflen) return -1;
|
||
|
buflen -= len;
|
||
|
buf += len;
|
||
|
strcpy (result->gr_passwd, ret->gr_passwd);
|
||
|
|
||
|
count = 0;
|
||
|
gr_mem = ret->gr_mem;
|
||
|
while (*gr_mem){
|
||
|
count++;
|
||
|
gr_mem++;
|
||
|
}
|
||
|
len = sizeof (*gr_mem)*(count+1);
|
||
|
if (len > buflen) return -1;
|
||
|
buf1 = buf;
|
||
|
buflen -= len;
|
||
|
buf += len;
|
||
|
gr_mem = ret->gr_mem;
|
||
|
while (*gr_mem){
|
||
|
len = strlen (*gr_mem) + 1;
|
||
|
if (len > buflen) return -1;
|
||
|
buf1 = buf;
|
||
|
strcpy (buf, *gr_mem);
|
||
|
buflen -= len;
|
||
|
buf += len;
|
||
|
buf1 += sizeof (buf1);
|
||
|
gr_mem++;
|
||
|
}
|
||
|
buf1 = NULL;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int getgrnam_r (const char *name, struct group *result,
|
||
|
char *buffer, size_t buflen,
|
||
|
struct group ** resptr)
|
||
|
{
|
||
|
struct group * p;
|
||
|
int retval;
|
||
|
|
||
|
pthread_mutex_lock (&getgr_mutex);
|
||
|
p = getgrnam (name);
|
||
|
if (p == NULL) {
|
||
|
*resptr = NULL;
|
||
|
retval = ESRCH;
|
||
|
} else
|
||
|
if (convert (p, result, buffer, buflen) != 0) {
|
||
|
*resptr = NULL;
|
||
|
retval = ERANGE;
|
||
|
} else {
|
||
|
*resptr = result;
|
||
|
retval = 0;
|
||
|
}
|
||
|
pthread_mutex_unlock (&getgr_mutex);
|
||
|
return retval;
|
||
|
}
|
||
|
|
||
|
int getgrgid_r (uid_t uid, struct group *result,
|
||
|
char *buffer, size_t buflen,
|
||
|
struct group ** resptr)
|
||
|
{
|
||
|
struct group * p;
|
||
|
int retval;
|
||
|
|
||
|
pthread_mutex_lock (&getgr_mutex);
|
||
|
p = getgrgid (uid);
|
||
|
if (p == NULL) {
|
||
|
*resptr = NULL;
|
||
|
retval = ESRCH;
|
||
|
} else
|
||
|
if (convert (p, result, buffer, buflen) != 0) {
|
||
|
*resptr = NULL;
|
||
|
retval = ERANGE;
|
||
|
} else {
|
||
|
*resptr = result;
|
||
|
retval = 0;
|
||
|
}
|
||
|
pthread_mutex_unlock (&getgr_mutex);
|
||
|
return retval;
|
||
|
}
|