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setup.c: stop prefix_pathspec() from looping past the end of string
The code assumes that the string ends at either `)` or `,`, and does not handle the case where strcspn() returns length due to end of string. So specifying ":(top" as pathspec will cause the loop to go past the end of string. Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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setup.c
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setup.c
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@ -199,10 +199,11 @@ static const char *prefix_pathspec(const char *prefix, int prefixlen, const char
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*copyfrom && *copyfrom != ')';
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copyfrom = nextat) {
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size_t len = strcspn(copyfrom, ",)");
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if (copyfrom[len] == ')')
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nextat = copyfrom + len;
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else
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if (copyfrom[len] == ',')
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nextat = copyfrom + len + 1;
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else
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/* handle ')' and '\0' */
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nextat = copyfrom + len;
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if (!len)
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continue;
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for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++)
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