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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * mkdtemp(3C) - create a directory with a unique name. 31 */ 32 33 #include "lint.h" 34 #include <alloca.h> 35 #include <errno.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <sys/stat.h> 39 40 char * 41 mkdtemp(char *template) 42 { 43 char *t = alloca(strlen(template) + 1); 44 char *r; 45 46 /* Save template */ 47 (void) strcpy(t, template); 48 for (;;) { 49 r = mktemp(template); 50 51 if (*r == '\0') 52 return (NULL); 53 54 if (mkdir(template, 0700) == 0) 55 return (r); 56 57 /* Other errors indicate persistent conditions. */ 58 if (errno != EEXIST) 59 return (NULL); 60 61 /* Reset template */ 62 (void) strcpy(template, t); 63 } 64 } 65