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Misc sanity checks

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This commit is contained in:
Henrik Rydgård
2025-06-14 08:43:50 +02:00
parent aea6df0ca4
commit 70f1edb28f
8 changed files with 37 additions and 18 deletions
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Common/Data/Encoding/Utf8.cpp
+7
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@@ -322,6 +322,10 @@ void ConvertUTF8ToJavaModifiedUTF8(std::string *output, std::string_view input)
output[out_idx++] = (char)0x80;
i++;
} else if ((c & 0xF0) == 0xF0) { // 4-byte sequence (U+10000 to U+10FFFF)
if (i + 4 > input.length()) {
// Bad.
break;
}
// Decode the Unicode code point from the UTF-8 sequence
uint32_t code_point = ((input[i] & 0x07) << 18) |
((input[i + 1] & 0x3F) << 12) |
@@ -345,6 +349,9 @@ void ConvertUTF8ToJavaModifiedUTF8(std::string *output, std::string_view input)
} else if ((c & 0xF0) == 0xE0) {
utf8_len = 3; // 3-byte sequence
}
if (i + utf8_len > input.length()) {
break;
}
memcpy(output->data() + out_idx, input.data() + i, utf8_len);
out_idx += utf8_len;
i += utf8_len;