2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A/*
2N/A * Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
2N/A * All Rights Reserved
2N/A *
2N/A * Portions of this source code were derived from Berkeley
2N/A * 4.3 BSD under license from the regents of the University of
2N/A * California.
2N/A */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A#include <sys/feature_tests.h>
2N/A
2N/A#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
2N/A#define mkstemp mkstemp64
2N/A#define mkstemps mkstemps64
2N/A#define libc_mkstemps libc_mkstemps64 /* prefer unique statics */
2N/A#pragma weak _mkstemp64 = mkstemp64
2N/A#else
2N/A#pragma weak _mkstemp = mkstemp
2N/A#endif
2N/A
2N/A#include "lint.h"
2N/A#include <sys/fcntl.h>
2N/A#include <stdlib.h>
2N/A#include <string.h>
2N/A#include <errno.h>
2N/A#include <alloca.h>
2N/A#include <sys/types.h>
2N/A#include <sys/stat.h>
2N/A#include <fcntl.h>
2N/A
2N/Aextern char *libc_mktemps(char *, int);
2N/A
2N/Astatic int
2N/Alibc_mkstemps(char *as, int slen)
2N/A{
2N/A int fd;
2N/A int len;
2N/A char *tstr, *str, *mkret;
2N/A
2N/A if (as == NULL || *as == NULL)
2N/A return (-1);
2N/A
2N/A len = (int)strlen(as);
2N/A tstr = alloca(len + 1);
2N/A (void) strcpy(tstr, as);
2N/A
2N/A if (slen < 0 || slen >= len)
2N/A return (-1);
2N/A
2N/A str = tstr + (len - 1 - slen);
2N/A
2N/A /*
2N/A * The following for() loop is doing work. mktemp() will generate
2N/A * a different name each time through the loop. So if the first
2N/A * name is used then keep trying until you find a free filename.
2N/A */
2N/A
2N/A for (;;) {
2N/A if (*str == 'X') { /* If no trailing X's don't call mktemp. */
2N/A mkret = libc_mktemps(as, slen);
2N/A if (*mkret == '\0') {
2N/A return (-1);
2N/A }
2N/A }
2N/A#if _FILE_OFFSET_BITS == 64
2N/A if ((fd = open64(as, O_CREAT|O_EXCL|O_RDWR, 0600)) != -1) {
2N/A return (fd);
2N/A }
2N/A#else
2N/A if ((fd = open(as, O_CREAT|O_EXCL|O_RDWR, 0600)) != -1) {
2N/A return (fd);
2N/A }
2N/A#endif /* _FILE_OFFSET_BITS == 64 */
2N/A
2N/A /*
2N/A * If the error condition is other than EEXIST or if the
2N/A * file exists and there are no X's in the string
2N/A * return -1.
2N/A */
2N/A
2N/A if ((errno != EEXIST) || (*str != 'X')) {
2N/A return (-1);
2N/A }
2N/A (void) strcpy(as, tstr);
2N/A }
2N/A}
2N/A
2N/Aint
2N/Amkstemp(char *as)
2N/A{
2N/A return (libc_mkstemps(as, 0));
2N/A}
2N/A
2N/Aint
2N/Amkstemps(char *as, int slen)
2N/A{
2N/A return (libc_mkstemps(as, slen));
2N/A}