/* * Copyright (c) 2008 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #define _DARWIN_C_SOURCE #include <errno.h> #include <pwd.h> #include <stdint.h> #include <unistd.h> int32_t getgroupcount(const char *name, gid_t basegid); /* * getgroups extension; not limited by NGROUPS_MAX */ int getgroups(int gidsetsize, gid_t grouplist[]) { struct passwd *pw; int n; if ((pw = getpwuid(getuid())) == NULL) { errno = EINVAL; return -1; } if (gidsetsize == 0) { if ((n = getgroupcount(pw->pw_name, pw->pw_gid)) == 0) { errno = EINVAL; return -1; } return n; } n = gidsetsize; if (getgrouplist(pw->pw_name, pw->pw_gid, (int *)grouplist, &n) < 0) { errno = EINVAL; return -1; } return n; }