The Tor Browser: comparison toolkit/crashreporter/google-breakpad/src/common/android/testing/mkdtemp.h

--1:000000000000
+:1651e17f7402
+// Copyright (c) 2012, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of Google Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT
+// OWNER 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.
+// Android doesn't provide mkdtemp(). Keep this implementation in an
+// C++ anonymous namespace to avoid conflicts on Chromium (which
+// already provides an extern "C" mkdtemp function).
+//
+// The reason this is inlined here is to avoid linking a new object file
+// into each unit test program (i.e. keep build files simple).
+#ifndef GOOGLE_BREAKPAD_COMMON_ANDROID_TESTING_MKDTEMP_H
+#define GOOGLE_BREAKPAD_COMMON_ANDROID_TESTING_MKDTEMP_H
+#include <assert.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+namespace {
+char* mkdtemp(char* path) {
+if (path == NULL) {
+errno = EINVAL;
+return NULL;
+}
+// 'path' must be terminated with six 'X'
+const char kSuffix[] = "XXXXXX";
+const size_t kSuffixLen = strlen(kSuffix);
+char* path_end = path + strlen(path);
+if (static_cast<size_t>(path_end - path) < kSuffixLen ||
+memcmp(path_end - kSuffixLen, kSuffix, kSuffixLen) != 0) {
+errno = EINVAL;
+return NULL;
+}
+// If 'path' contains a directory separator, check that it exists to
+// avoid looping later.
+char* sep = strrchr(path, '/');
+if (sep != NULL) {
+struct stat st;
+int ret;
+*sep = '\0';  // temporarily zero-terminate the dirname.
+ret = stat(path, &st);
+*sep = '/';   // restore full path.
+if (ret < 0)
+return NULL;
+if (!S_ISDIR(st.st_mode)) {
+errno = ENOTDIR;
+return NULL;
+}
+}
+// Loop. On each iteration, replace the XXXXXX suffix with a random
+// number.
+int tries;
+for (tries = 128; tries > 0; tries--) {
+int random = rand() % 1000000;
+snprintf(path_end - kSuffixLen, kSuffixLen + 1, "%0d", random);
+if (mkdir(path, 0700) == 0)
+return path;  // Success
+if (errno != EEXIST)
+return NULL;
+}
+assert(errno == EEXIST);
+return NULL;
+}
+}  // namespace
+#endif  // GOOGLE_BREAKPAD_COMMON_ANDROID_TESTING_MKDTEMP_H

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comparison: toolkit/crashreporter/google-breakpad/src/common/android/testing/mkdtemp.h

toolkit/crashreporter/google-breakpad/src/common/android/testing/mkdtemp.h