1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/syscall.h> 30 31 #include <project.h> 32 #include <stdlib.h> 33 #include <errno.h> 34 35 static size_t 36 projlist(id_t *idbuf, size_t idbufsz) 37 { 38 return (syscall(SYS_tasksys, 3, 0, 0, idbuf, idbufsz)); 39 } 40 41 int 42 project_walk(int (*callback)(projid_t, void *), void *init_data) 43 { 44 int ret = 0; 45 projid_t *projids = NULL; 46 projid_t *curr_projid; 47 size_t sz; 48 size_t osz = 0; 49 50 while ((sz = projlist(projids, osz * sizeof (projid_t))) != osz) { 51 osz = sz; 52 curr_projid = projids; 53 if ((projids = realloc(projids, sz * sizeof (projid_t))) 54 == NULL) { 55 /* 56 * If realloc() fails, we return ENOMEM. 57 */ 58 if (errno == EAGAIN) 59 errno = ENOMEM; 60 if (curr_projid != NULL) 61 free(curr_projid); 62 return (-1); 63 } 64 } 65 66 for (curr_projid = projids; curr_projid < projids + sz; curr_projid++) { 67 if (ret = callback(*curr_projid, init_data)) 68 break; 69 } 70 71 free(projids); 72 return (ret); 73 } 74