lib/Support/Path.cpp

954 file_magic identify_magic(StringRef Magic) {
955   if (Magic.size() < 4)
957   switch ((unsigned char)Magic[0]) {
960       if (Magic[1] == (char)0x00 && Magic[2] == (char)0xff &&
961           Magic[3] == (char)0xff) {
963         if (Magic.size() < MinSize)
967             Magic.data() + offsetof(COFF::BigObjHeader, Version));
971         const char *Start = Magic.data() + offsetof(COFF::BigObjHeader, UUID);
978       if (Magic.size() >= sizeof(Expected) &&
979           memcmp(Magic.data(), Expected, sizeof(Expected)) == 0)
982       if (Magic[1] == 0)
987       if (Magic[1] == (char)0xC0 && Magic[2] == (char)0x17 &&
988           Magic[3] == (char)0x0B)
992       if (Magic[1] == 'C' && Magic[2] == (char)0xC0 && Magic[3] == (char)0xDE)
996       if (Magic.size() >= 8)
997         if (memcmp(Magic.data(), "!<arch>\n", 8) == 0 ||
998             memcmp(Magic.data(), "!<thin>\n", 8) == 0)
1003       if (Magic.size() >= 18 && Magic[1] == 'E' && Magic[2] == 'L' &&
1004           Magic[3] == 'F') {
1005         bool Data2MSB = Magic[5] == 2;
1008         if (Magic[high] == 0)
1009           switch (Magic[low]) {
1023       if (Magic[1] == char(0xFE) && Magic[2] == char(0xBA) &&
1024           Magic[3] == char(0xBE)) {
1027         if (Magic.size() >= 8 && Magic[7] < 43)
1039       if (Magic[0] == char(0xFE) && Magic[1] == char(0xED) &&
1040           Magic[2] == char(0xFA) &&
1041           (Magic[3] == char(0xCE) || Magic[3] == char(0xCF))) {
1043         if (Magic.size() >= 16) type = Magic[14] << 8 | Magic[15];
1044       } else if ((Magic[0] == char(0xCE) || Magic[0] == char(0xCF)) &&
1045                  Magic[1] == char(0xFA) && Magic[2] == char(0xED) &&
1046                  Magic[3] == char(0xFE)) {
1048         if (Magic.size() >= 14) type = Magic[13] << 8 | Magic[12];
1073       if (Magic[1] == 0x01)
1078       if (Magic[1] == 0x02)
1083       if (Magic[1] == 'Z') {
1084         uint32_t off = read32le(Magic.data() + 0x3c);
1086         if (off < Magic.size() &&
1087             memcmp(Magic.data()+off, COFF::PEMagic, sizeof(COFF::PEMagic)) == 0)
1093       if (Magic[1] == char(0x86))