--- /dev/null
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * Copyright (c) 1987, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "apr_private.h"
+#include "apr_file_io.h" /* prototype of apr_mkstemp() */
+#include "apr_strings.h" /* prototype of apr_mkstemp() */
+#include "apr_arch_file_io.h" /* prototype of apr_mkstemp() */
+#include "apr_portable.h" /* for apr_os_file_put() */
+
+#ifndef HAVE_MKSTEMP
+
+#if defined(SVR4) || defined(WIN32) || defined(NETWARE)
+#ifdef SVR4
+#if HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+#endif
+#define arc4random() rand()
+#define seedrandom(a) srand(a)
+#else
+#if APR_HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#define arc4random() random()
+#define seedrandom(a) srandom(a)
+#endif
+
+#if APR_HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#if APR_HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#if APR_HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+
+static const unsigned char padchar[] =
+"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+static apr_uint32_t randseed=0;
+
+static int gettemp(char *path, apr_file_t **doopen, apr_int32_t flags, apr_pool_t *p)
+{
+ register char *start, *trv, *suffp;
+ char *pad;
+ apr_finfo_t sbuf;
+ apr_status_t rv;
+ apr_uint32_t randnum;
+
+ if (randseed==0) {
+ randseed = (int)apr_time_now();
+ seedrandom(randseed);
+ }
+
+ for (trv = path; *trv; ++trv)
+ ;
+ suffp = trv;
+ --trv;
+ if (trv < path) {
+ return APR_EINVAL;
+ }
+
+ /* Fill space with random characters */
+ while (*trv == 'X') {
+ randnum = arc4random() % (sizeof(padchar) - 1);
+ *trv-- = padchar[randnum];
+ }
+ start = trv + 1;
+
+ /*
+ * check the target directory.
+ */
+ for (;; --trv) {
+ if (trv <= path)
+ break;
+ if (*trv == '/') {
+ *trv = '\0';
+ rv = apr_stat(&sbuf, path, APR_FINFO_TYPE, p);
+ *trv = '/';
+ if (rv != APR_SUCCESS)
+ return rv;
+ if (sbuf.filetype != APR_DIR) {
+ return APR_ENOTDIR;
+ }
+ break;
+ }
+ }
+
+ for (;;) {
+ if ((rv = apr_file_open(doopen, path, flags,
+ APR_UREAD | APR_UWRITE, p)) == APR_SUCCESS)
+ return APR_SUCCESS;
+ if (!APR_STATUS_IS_EEXIST(rv))
+ return rv;
+
+ /* If we have a collision, cycle through the space of filenames */
+ for (trv = start;;) {
+ if (*trv == '\0' || trv == suffp)
+ return APR_EINVAL; /* XXX: is this the correct return code? */
+ pad = strchr((char *)padchar, *trv);
+ if (pad == NULL || !*++pad) {
+ *trv++ = padchar[0];
+ }
+ else {
+ *trv++ = *pad;
+ break;
+ }
+ }
+ }
+ /*NOTREACHED*/
+}
+
+#else
+
+#if APR_HAVE_STDLIB_H
+#include <stdlib.h> /* for mkstemp() - Single Unix */
+#endif
+#if APR_HAVE_UNISTD_H
+#include <unistd.h> /* for mkstemp() - FreeBSD */
+#endif
+#endif /* !defined(HAVE_MKSTEMP) */
+
+APR_DECLARE(apr_status_t) apr_file_mktemp(apr_file_t **fp, char *template, apr_int32_t flags, apr_pool_t *p)
+{
+#ifdef HAVE_MKSTEMP
+ int fd;
+#endif
+ flags = (!flags) ? APR_CREATE | APR_READ | APR_WRITE | APR_EXCL |
+ APR_DELONCLOSE : flags;
+#ifndef HAVE_MKSTEMP
+ return gettemp(template, fp, flags, p);
+#else
+
+ fd = mkstemp(template);
+ if (fd == -1) {
+ return errno;
+ }
+ /* XXX: We must reset several flags values as passed-in, since
+ * mkstemp didn't subscribe to our preference flags.
+ *
+ * We either have to unset the flags, or fix up the fd and other
+ * xthread and inherit bits appropriately. Since gettemp() above
+ * calls apr_file_open, our flags are respected in that code path.
+ */
+ apr_os_file_put(fp, &fd, flags, p);
+ (*fp)->fname = apr_pstrdup(p, template);
+
+ if (!(flags & APR_FILE_NOCLEANUP)) {
+ apr_pool_cleanup_register((*fp)->pool, (void *)(*fp),
+ apr_unix_file_cleanup,
+ apr_unix_child_file_cleanup);
+ }
+#endif
+ return APR_SUCCESS;
+}
+
Code Review / bottlenecks.git / blobdiff