mirror of https://github.com/merbanan/rtl_433.git
14 lines
686 B
Diff
14 lines
686 B
Diff
diff --git a/src/common/str_util.c b/src/common/str_util.c
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index cc825cb..5a0b8b1 100644
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--- a/src/common/str_util.c
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+++ b/src/common/str_util.c
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@@ -507,7 +507,7 @@ size_t mg_match_prefix_n(const struct mg_str pattern, const struct mg_str str) {
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const struct mg_str pstr = {pattern.p + i, pattern.len - i};
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const struct mg_str sstr = {str.p + j + len, str.len - j - len};
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res = mg_match_prefix_n(pstr, sstr);
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- } while (res == 0 && len != 0 && len-- > 0);
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+ } while (res == 0 && len != 0 && --len > 0);
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return res == 0 ? 0 : j + res + len;
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} else if (str_util_lowercase(&pattern.p[i]) !=
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str_util_lowercase(&str.p[j])) {
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