# 2.11BSD#431 - /usr/src/lib/libc/gen/getgrouplist.c

##### Functions

    getgrouplist      X

       1: /*
       2:  * Copyright (c) 1991, 1993
       3:  *	The Regents of the University of California.  All rights reserved.
       4:  *
       5:  * Redistribution and use in source and binary forms, with or without
       6:  * modification, are permitted provided that the following conditions
       7:  * are met:
       8:  * 1. Redistributions of source code must retain the above copyright
       9:  *    notice, this list of conditions and the following disclaimer.
      10:  * 2. Redistributions in binary form must reproduce the above copyright
      11:  *    notice, this list of conditions and the following disclaimer in the
      12:  *    documentation and/or other materials provided with the distribution.
      13:  * 3. All advertising materials mentioning features or use of this software
      14:  *    must display the following acknowledgement:
      15:  *	This product includes software developed by the University of
      16:  *	California, Berkeley and its contributors.
      17:  * 4. Neither the name of the University nor the names of its contributors
      18:  *    may be used to endorse or promote products derived from this software
      19:  *    without specific prior written permission.
      20:  *
      21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31:  * SUCH DAMAGE.
      32:  */
      33:
      34: #if defined(LIBC_SCCS) && !defined(lint)
      35: static char sccsid[] = "@(#)getgrouplist.c	8.2.1 (2.11BSD) 1997/6/25";
      36: #endif /* LIBC_SCCS and not lint */
      37:
      38: /*
      39:  * get credential
      40:  */
      41: #include <sys/types.h>
      42: #include <string.h>
      43: #include <grp.h>
      44:
      45: int
      46: getgrouplist(uname, agroup, groups, grpcnt)
      47:     char *uname;
      48:     gid_t agroup;
      49:     register gid_t *groups;
      50:     int *grpcnt;
      51: {
      52:     register struct group *grp;
      53:     int i, ngroups, ret, maxgroups;
      54:
      55:     ret = 0;
      56:     ngroups = 0;
      57:     maxgroups = *grpcnt;
      58:     /*
      59: 	 * When installing primary group, duplicate it;
      60: 	 * the first element of groups is the effective gid
      61: 	 * and will be overwritten when a setgid file is executed.
      62: 	 */
      63:     groups[ngroups++] = agroup;
      64:     if (maxgroups > 1)
      65:         groups[ngroups++] = agroup;
      66:     /*
      67: 	 * Scan the group file to find additional groups.
      68: 	 */
      69:     setgrent();
      70:     while (grp = getgrent()) {
      71:         if (grp->gr_gid == agroup)
      72:             continue;
      73:         for (i = 0; grp->gr_mem[i]; i++) {
      74:             if (!strcmp(grp->gr_mem[i], uname)) {
      75:                 if (ngroups >= maxgroups) {
      76:                     ret = -1;
      77:                     break;
      78:                 }
      79:                 groups[ngroups++] = grp->gr_gid;
      80:                 break;
      81:             }
      82:         }
      83:     }
      84:     endgrent();
      85:     *grpcnt = ngroups;
      86:     return (ret);
      87: }

#### Defined functions

getgrouplist defined in line 45; used 2 times

- in /usr/src/usr.bin/id/id.c line 243, 269

#### Defined variables

sccsid defined in line 35; never used

Last modified: 1997-06-26 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 531 |