author Ted Mielczarek <>
Thu, 14 Oct 2010 20:38:19 -0400
changeset 56282 f2253edf5fc4879285a092f94f7b1a70a5c92b2f
child 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
bug 603592 - make a file_id host binary that can spit out a Breakpad file id. r=mwu a=blocking-fennec

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is Mozilla Breakpad integration
 * The Initial Developer of the Original Code is
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 *  Ted Mielczarek <>
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#include <string>

#include <stdio.h>

#include "common/linux/file_id.h"

//TODO: move this somewhere common, this is copied from
// Format the Elf file identifier in IDENTIFIER as a UUID with the
// dashes removed.
std::string FormatIdentifier(unsigned char identifier[16]) {
  char identifier_str[40];
  std::string id_no_dash;
  for (int i = 0; identifier_str[i] != '\0'; ++i)
    if (identifier_str[i] != '-')
      id_no_dash += identifier_str[i];
  // Add an extra "0" by the end.  PDB files on Windows have an 'age'
  // number appended to the end of the file identifier; this isn't
  // really used or necessary on other platforms, but let's preserve
  // the pattern.
  id_no_dash += '0';
  return id_no_dash;

int main(int argc, char** argv)
  if (argc != 2) {
    fprintf(stderr, "usage: file_id <elf file>\n");
    return 1;

  unsigned char identifier[google_breakpad::kMDGUIDSize];
  google_breakpad::FileID file_id(argv[1]);
  if (!file_id.ElfFileIdentifier(identifier)) {
    fprintf(stderr, "%s: unable to generate file identifier\n",
    return 1;
  printf("%s\n", FormatIdentifier(identifier).c_str());
  return 0;