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 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include "libuutil_common.h" 30 31 #include <sys/time.h> 32 33 #include <errno.h> 34 #include <fcntl.h> 35 #include <limits.h> 36 #include <stdio.h> 37 #include <unistd.h> 38 39 #ifdef _LP64 40 #define TMPPATHFMT "%s/uu%ld" 41 #else /* _LP64 */ 42 #define TMPPATHFMT "%s/uu%lld" 43 #endif /* _LP64 */ 44 45 /*ARGSUSED*/ 46 int 47 uu_open_tmp(const char *dir, uint_t uflags) 48 { 49 int f; 50 char *fname = uu_zalloc(PATH_MAX); 51 52 if (fname == NULL) 53 return (-1); 54 55 for (;;) { 56 (void) snprintf(fname, PATH_MAX, "%s/uu%lld", dir, gethrtime()); 57 58 f = open(fname, O_CREAT | O_EXCL | O_RDWR, 0600); 59 60 if (f >= 0 || errno != EEXIST) 61 break; 62 } 63 64 if (f >= 0) 65 (void) unlink(fname); 66 67 uu_free(fname); 68 69 return (f); 70 } 71