github.com/miolini/go@v0.0.0-20160405192216-fca68c8cb408/src/os/user/getgrouplist_darwin.c (about) 1 // Copyright 2016 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // +build cgo 6 7 #include <unistd.h> 8 #include <sys/types.h> 9 #include <stdlib.h> 10 11 int mygetgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups) { 12 int* buf = malloc(*ngroups * sizeof(int)); 13 int rv = getgrouplist(user, (int) group, buf, ngroups); 14 int i; 15 if (rv == 0) { 16 for (i = 0; i < *ngroups; i++) { 17 groups[i] = (gid_t) buf[i]; 18 } 19 } 20 free(buf); 21 return rv; 22 }