* Added breakpad support for Linux.

thirdparty/breakpad/common/mac/file_id.cc

@@ -0,0 +1,101 @@
+// Copyright (c) 2006, 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.
+
+// file_id.cc: Return a unique identifier for a file
+//
+// See file_id.h for documentation
+//
+// Author: Dan Waylonis
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "common/mac/file_id.h"
+#include "common/mac/macho_id.h"
+
+using MacFileUtilities::MachoID;
+
+namespace google_breakpad {
+
+FileID::FileID(const char *path) {
+  strlcpy(path_, path, sizeof(path_));
+}
+
+bool FileID::FileIdentifier(unsigned char identifier[16]) {
+  int fd = open(path_, O_RDONLY);
+  if (fd == -1)
+    return false;
+
+  MD5Context md5;
+  MD5Init(&md5);
+
+  // Read 4k x 2 bytes at a time.  This is faster than just 4k bytes, but
+  // doesn't seem to be an unreasonable size for the stack.
+  unsigned char buffer[4096 * 2];
+  size_t buffer_size = sizeof(buffer);
+  while ((buffer_size = read(fd, buffer, buffer_size) > 0)) {
+    MD5Update(&md5, buffer, buffer_size);
+  }
+
+  close(fd);
+  MD5Final(identifier, &md5);
+
+  return true;
+}
+
+bool FileID::MachoIdentifier(int cpu_type, unsigned char identifier[16]) {
+  MachoID macho(path_);
+
+  if (macho.UUIDCommand(cpu_type, identifier))
+    return true;
+
+  return macho.MD5(cpu_type, identifier);
+}
+
+// static
+void FileID::ConvertIdentifierToString(const unsigned char identifier[16],
+                                       char *buffer, int buffer_length) {
+  int buffer_idx = 0;
+  for (int idx = 0; (buffer_idx < buffer_length) && (idx < 16); ++idx) {
+    int hi = (identifier[idx] >> 4) & 0x0F;
+    int lo = (identifier[idx]) & 0x0F;
+
+    if (idx == 4 || idx == 6 || idx == 8 || idx == 10)
+      buffer[buffer_idx++] = '-';
+
+    buffer[buffer_idx++] = (hi >= 10) ? 'A' + hi - 10 : '0' + hi;
+    buffer[buffer_idx++] = (lo >= 10) ? 'A' + lo - 10 : '0' + lo;
+  }
+
+  // NULL terminate
+  buffer[(buffer_idx < buffer_length) ? buffer_idx : buffer_idx - 1] = 0;
+}
+
+}  // namespace google_breakpad