59 static int OpenAndReadMagic(const char* filename, uint32_t* magic, std::string* error_msg) {  in OpenAndReadMagic()  argument
60   CHECK(magic != nullptr);  in OpenAndReadMagic()
66   int n = TEMP_FAILURE_RETRY(read(fd.get(), magic, sizeof(*magic)));  in OpenAndReadMagic()
67   if (n != sizeof(*magic)) {  in OpenAndReadMagic()
81   uint32_t magic;  in GetChecksum()  local
95   ScopedFd fd(OpenAndReadMagic(file_part, &magic, error_msg));  in GetChecksum()
100   if (IsZipMagic(magic)) {  in GetChecksum()
117   if (IsDexMagic(magic)) {  in GetChecksum()
133   uint32_t magic;  in Open()  local
134   ScopedFd fd(OpenAndReadMagic(filename, &magic, error_msg));  in Open()
139   if (IsZipMagic(magic)) {  in Open()
142   if (IsDexMagic(magic)) {  in Open()
167   uint32_t magic;  in MaybeDex()  local
169   ScopedFd fd(OpenAndReadMagic(filename, &magic, &error_msg));  in MaybeDex()
173   if (IsZipMagic(magic)) {  in MaybeDex()
175   } else if (IsDexMagic(magic)) {  in MaybeDex()
459 bool DexFile::IsMagicValid(const uint8_t* magic) {  in IsMagicValid()  argument
460   return (memcmp(magic, kDexMagic, sizeof(kDexMagic)) == 0);  in IsMagicValid()
463 bool DexFile::IsVersionValid(const uint8_t* magic) {  in IsVersionValid()  argument
464   const uint8_t* version = &magic[sizeof(kDexMagic)];  in IsVersionValid()