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Revert strlen -> strnlen optimization pre-v11.

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We don't have a src/port substitute for that function in older branches,
so it fails on platforms lacking the function natively.  Per buildfarm.
This commit is contained in:
Tom Lane
2019-03-23 17:35:04 -04:00
parent de922529fe
commit d88d71e310
1 changed files with 2 additions and 9 deletions
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11
src/backend/utils/adt/xml.c
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@ -1213,15 +1213,8 @@ parse_xml_decl(const xmlChar *str, size_t *lenp,
if (xmlStrncmp(p, (xmlChar *) "<?xml", 5) != 0)
goto finished;
/*
* If next char is a name char, it's a PI like <?xml-stylesheet ...?>
* rather than an XMLDecl, so we have done what we came to do and found no
* XMLDecl.
*
* We need an input length value for xmlGetUTF8Char, but there's no need
* to count the whole document size, so use strnlen not strlen.
*/
utf8len = strnlen((const char *) (p + 5), MAX_MULTIBYTE_CHAR_LEN);
/* if next char is name char, it's a PI like <?xml-stylesheet ...?> */
utf8len = strlen((const char *) (p + 5));
utf8char = xmlGetUTF8Char(p + 5, &utf8len);
if (PG_XMLISNAMECHAR(utf8char))
goto finished;