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color.c: fix color_parse_mem() with value_len == 0 

In this code we want to match the word "reset". If len is zero,
strncasecmp() will return zero and we incorrectly assume it's "reset" as
a result.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Nguyễn Thái Ngọc Duy 2017-01-19 18:41:21 +07:00 committed by Junio C Hamano
parent 6ebdac1bab
commit c2f41bf521
1 changed files with 3 additions and 0 deletions
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color.c
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@ -207,6 +207,9 @@ int color_parse_mem(const char *value, int value_len, char *dst)
struct color fg = { COLOR_UNSPECIFIED };
struct color bg = { COLOR_UNSPECIFIED };

if (!len)
return -1;

if (!strncasecmp(value, "reset", len)) {
xsnprintf(dst, end - dst, GIT_COLOR_RESET);
return 0;