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 #include <sys/syscall.h> 28 29 #include <project.h> 30 #include <stdlib.h> 31 #include <errno.h> 32 33 static size_t 34 projlist(id_t *idbuf, size_t idbufsz) 35 { 36 return (syscall(SYS_tasksys, 3, 0, 0, idbuf, idbufsz)); 37 } 38 39 int 40 project_walk(int (*callback)(projid_t, void *), void *init_data) 41 { 42 int ret = 0; 43 projid_t *projids = NULL; 44 projid_t *curr_projid; 45 size_t sz; 46 size_t osz = 0; 47 48 while ((sz = projlist(projids, osz * sizeof (projid_t))) != osz) { 49 osz = sz; 50 curr_projid = projids; 51 if ((projids = realloc(projids, sz * sizeof (projid_t))) 52 == NULL) { 53 /* 54 * If realloc() fails, we return ENOMEM. 55 */ 56 if (errno == EAGAIN) 57 errno = ENOMEM; 58 if (curr_projid != NULL) 59 free(curr_projid); 60 return (-1); 61 } 62 } 63 64 for (curr_projid = projids; curr_projid < projids + sz; curr_projid++) { 65 if (ret = callback(*curr_projid, init_data)) 66 break; 67 } 68 69 free(projids); 70 return (ret); 71 } 72