diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/common/solaris/file_id.cc')
| -rw-r--r-- | toolkit/crashreporter/google-breakpad/src/common/solaris/file_id.cc | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/solaris/file_id.cc b/toolkit/crashreporter/google-breakpad/src/common/solaris/file_id.cc deleted file mode 100644 index 643a14629..000000000 --- a/toolkit/crashreporter/google-breakpad/src/common/solaris/file_id.cc +++ /dev/null @@ -1,197 +0,0 @@ -// Copyright (c) 2007, 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: Alfred Peng - -#include <elf.h> -#include <fcntl.h> -#include <gelf.h> -#include <sys/mman.h> -#include <sys/ksyms.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include <cassert> -#include <cstdio> - -#include "common/md5.h" -#include "common/solaris/file_id.h" -#include "common/solaris/message_output.h" -#include "google_breakpad/common/minidump_format.h" - -namespace google_breakpad { - -class AutoElfEnder { - public: - AutoElfEnder(Elf *elf) : elf_(elf) {} - ~AutoElfEnder() { if (elf_) elf_end(elf_); } - private: - Elf *elf_; -}; - -// Find the text section in elf object file. -// Return the section start address and the size. -static bool FindElfTextSection(int fd, const void *elf_base, - const void **text_start, - int *text_size) { - assert(text_start); - assert(text_size); - - *text_start = NULL; - *text_size = 0; - - if (elf_version(EV_CURRENT) == EV_NONE) { - print_message2(2, "elf_version() failed: %s\n", elf_errmsg(0)); - return false; - } - - GElf_Ehdr elf_header; - lseek(fd, 0L, 0); - Elf *elf = elf_begin(fd, ELF_C_READ, NULL); - AutoElfEnder elfEnder(elf); - - if (gelf_getehdr(elf, &elf_header) == (GElf_Ehdr *)NULL) { - print_message2(2, "failed to read elf header: %s\n", elf_errmsg(-1)); - return false; - } - - if (elf_header.e_ident[EI_MAG0] != ELFMAG0 || - elf_header.e_ident[EI_MAG1] != ELFMAG1 || - elf_header.e_ident[EI_MAG2] != ELFMAG2 || - elf_header.e_ident[EI_MAG3] != ELFMAG3) { - print_message1(2, "header magic doesn't match\n"); - return false; - } - - static const char kTextSectionName[] = ".text"; - const GElf_Shdr *text_section = NULL; - Elf_Scn *scn = NULL; - GElf_Shdr shdr; - - while ((scn = elf_nextscn(elf, scn)) != NULL) { - if (gelf_getshdr(scn, &shdr) == (GElf_Shdr *)0) { - print_message2(2, "failed to read section header: %s\n", elf_errmsg(0)); - return false; - } - - if (shdr.sh_type == SHT_PROGBITS) { - const char *section_name = elf_strptr(elf, elf_header.e_shstrndx, - shdr.sh_name); - if (!section_name) { - print_message2(2, "Section name error: %s\n", elf_errmsg(-1)); - continue; - } - - if (strcmp(section_name, kTextSectionName) == 0) { - text_section = &shdr; - break; - } - } - } - if (text_section != NULL && text_section->sh_size > 0) { - *text_start = (char *)elf_base + text_section->sh_offset; - *text_size = text_section->sh_size; - return true; - } - - return false; -} - -FileID::FileID(const char *path) { - strcpy(path_, path); -} - -class AutoCloser { - public: - AutoCloser(int fd) : fd_(fd) {} - ~AutoCloser() { if (fd_) close(fd_); } - private: - int fd_; -}; - -bool FileID::ElfFileIdentifier(unsigned char identifier[16]) { - int fd = 0; - if ((fd = open(path_, O_RDONLY)) < 0) - return false; - - AutoCloser autocloser(fd); - struct stat st; - if (fstat(fd, &st) != 0 || st.st_size <= 0) - return false; - - void *base = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); - if (base == MAP_FAILED) - return false; - - bool success = false; - const void *text_section = NULL; - int text_size = 0; - - if (FindElfTextSection(fd, base, &text_section, &text_size)) { - MD5Context md5; - MD5Init(&md5); - MD5Update(&md5, (const unsigned char *)text_section, text_size); - MD5Final(identifier, &md5); - success = true; - } - - munmap((char *)base, st.st_size); - return success; -} - -// static -bool FileID::ConvertIdentifierToString(const unsigned char identifier[16], - char *buffer, int buffer_length) { - if (buffer_length < 34) - return false; - - int buffer_idx = 0; - for (int idx = 0; idx < 16; ++idx) { - int hi = (identifier[idx] >> 4) & 0x0F; - int lo = (identifier[idx]) & 0x0F; - - buffer[buffer_idx++] = (hi >= 10) ? 'A' + hi - 10 : '0' + hi; - buffer[buffer_idx++] = (lo >= 10) ? 'A' + lo - 10 : '0' + lo; - } - - // Add an extra "0" by the end. - buffer[buffer_idx++] = '0'; - - // NULL terminate - buffer[buffer_idx] = 0; - - return true; -} - -} // namespace google_breakpad |