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do not convert UTF-16 surrogate pairs to an invalid sequence - grabtitle - stup… |
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git clone git://git.codemadness.org/grabtitle |
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--- |
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commit efe5e8763fcc364f504198009d79f841c48bf7dc |
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parent 375166031e3942890db414e46937ae485986a2fa |
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Author: Hiltjo Posthuma <[email protected]> |
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Date: Thu, 22 Apr 2021 20:19:06 +0200 |
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do not convert UTF-16 surrogate pairs to an invalid sequence |
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Diffstat: |
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M xml.c | 5 +++-- |
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1 file changed, 3 insertions(+), 2 deletions(-) |
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--- |
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diff --git a/xml.c b/xml.c |
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@@ -199,8 +199,9 @@ numericentitytostr(const char *e, char *buf, size_t bufsiz) |
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l = strtol(++e, &end, 16); |
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else |
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l = strtol(e, &end, 10); |
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- /* invalid value or not a well-formed entity or invalid codepoint */ |
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- if (errno || e == end || *end != ';' || l < 0 || l > 0x10ffff) |
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+ /* invalid value or not a well-formed entity or invalid code point */ |
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+ if (errno || e == end || *end != ';' || l < 0 || l > 0x10ffff || |
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+ (l >= 0xd800 && l <= 0xdfff)) |
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return -1; |
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len = codepointtoutf8(l, buf); |
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buf[len] = '\0'; |
