os: fix sprintf signed char error
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06514e13df
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@ -67,7 +67,7 @@ bool taosMbsToUcs4(const char *mbs, size_t mbs_len, TdUcs4 *ucs4, int32_t ucs
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int32_t tasoUcs4Compare(TdUcs4 *f1_ucs4, TdUcs4 *f2_ucs4, int32_t bytes);
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TdUcs4* tasoUcs4Copy(TdUcs4 *target_ucs4, TdUcs4 *source_ucs4, int32_t len_ucs4);
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bool taosValidateEncodec(const char *encodec);
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int32_t taosHexEncode(const char *src, char *dst, int32_t len);
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int32_t taosHexEncode(const unsigned char *src, char *dst, int32_t len);
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int32_t taosHexDecode(const char *src, char *dst, int32_t len);
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int32_t taosWcharWidth(TdWchar wchar);
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@ -196,7 +196,7 @@ int32_t taosUcs4len(TdUcs4 *ucs4) {
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}
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//dst buffer size should be at least 2*len + 1
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int32_t taosHexEncode(const char *src, char *dst, int32_t len) {
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int32_t taosHexEncode(const unsigned char *src, char *dst, int32_t len) {
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if (!dst) {
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return -1;
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}
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