| 60 | } |
| 61 | |
| 62 | static inline bool DecodeUnsignedLeb128Checked(const uint8_t** data, |
| 63 | const void* end, |
| 64 | uint32_t* out) { |
| 65 | const uint8_t* ptr = *data; |
| 66 | if (ptr >= end) { |
| 67 | return false; |
| 68 | } |
| 69 | int result = *(ptr++); |
| 70 | if (UNLIKELY(result > 0x7f)) { |
| 71 | if (ptr >= end) { |
| 72 | return false; |
| 73 | } |
| 74 | int cur = *(ptr++); |
| 75 | result = (result & 0x7f) | ((cur & 0x7f) << 7); |
| 76 | if (cur > 0x7f) { |
| 77 | if (ptr >= end) { |
| 78 | return false; |
| 79 | } |
| 80 | cur = *(ptr++); |
| 81 | result |= (cur & 0x7f) << 14; |
| 82 | if (cur > 0x7f) { |
| 83 | if (ptr >= end) { |
| 84 | return false; |
| 85 | } |
| 86 | cur = *(ptr++); |
| 87 | result |= (cur & 0x7f) << 21; |
| 88 | if (cur > 0x7f) { |
| 89 | if (ptr >= end) { |
| 90 | return false; |
| 91 | } |
| 92 | // Note: We don't check to see if cur is out of range here, |
| 93 | // meaning we tolerate garbage in the four high-order bits. |
| 94 | cur = *(ptr++); |
| 95 | result |= cur << 28; |
| 96 | } |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | *data = ptr; |
| 101 | *out = static_cast<uint32_t>(result); |
| 102 | return true; |
| 103 | } |
| 104 | |
| 105 | // Reads an unsigned LEB128 + 1 value. updating the given pointer to point |
| 106 | // just past the end of the read value. This function tolerates |
no outgoing calls
no test coverage detected