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convert: fix handling of dashless UTF prefix in validate_encoding()
Strip "UTF" and an optional dash from the start of 'upper' without passing a NULL pointer to skip_prefix() in the second call, as it cannot handle that. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -289,8 +289,8 @@ static int validate_encoding(const char *path, const char *enc,
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const char *stripped = NULL;
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char *upper = xstrdup_toupper(enc);
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upper[strlen(upper)-2] = '\0';
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if (!skip_prefix(upper, "UTF-", &stripped))
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skip_prefix(stripped, "UTF", &stripped);
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if (skip_prefix(upper, "UTF", &stripped))
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skip_prefix(stripped, "-", &stripped);
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advise(advise_msg, path, stripped);
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free(upper);
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if (die_on_error)
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@ -309,8 +309,8 @@ static int validate_encoding(const char *path, const char *enc,
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"working-tree-encoding.");
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const char *stripped = NULL;
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char *upper = xstrdup_toupper(enc);
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if (!skip_prefix(upper, "UTF-", &stripped))
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skip_prefix(stripped, "UTF", &stripped);
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if (skip_prefix(upper, "UTF", &stripped))
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skip_prefix(stripped, "-", &stripped);
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advise(advise_msg, path, stripped, stripped);
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free(upper);
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if (die_on_error)
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