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 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include "libuutil_common.h" 28 29 #include <sys/time.h> 30 31 #include <errno.h> 32 #include <fcntl.h> 33 #include <limits.h> 34 #include <stdio.h> 35 #include <unistd.h> 36 37 #ifdef _LP64 38 #define TMPPATHFMT "%s/uu%ld" 39 #else /* _LP64 */ 40 #define TMPPATHFMT "%s/uu%lld" 41 #endif /* _LP64 */ 42 43 /*ARGSUSED*/ 44 int 45 uu_open_tmp(const char *dir, uint_t uflags) 46 { 47 int f; 48 char *fname = uu_zalloc(PATH_MAX); 49 50 if (fname == NULL) 51 return (-1); 52 53 for (;;) { 54 (void) snprintf(fname, PATH_MAX, "%s/uu%lld", dir, gethrtime()); 55 56 f = open(fname, O_CREAT | O_EXCL | O_RDWR, 0600); 57 58 if (f >= 0 || errno != EEXIST) 59 break; 60 } 61 62 if (f >= 0) 63 (void) unlink(fname); 64 65 uu_free(fname); 66 67 return (f); 68 } 69