Re: [FIX] Bug #25585: PHP crash if executed MSSQL-query with RAISERROR() call and error 515

From: Date: Mon, 01 Dec 2003 19:02:28 +0000
Subject: Re: [FIX] Bug #25585: PHP crash if executed MSSQL-query with RAISERROR() call and error 515
Groups: php.internals 
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This does not fix the problem. mssql_query is designed to stop fetching for each result. Use mssql_next_result() to move the internal pointer to the nex result and process the data. I have tested the code provided with the bug report and it works as I expect (no crash). - Frank > I believe the problem here is in how mssql_query handles result sets > that have multiple results returned, but none with rows (such as in > this bug where there are multiple commands executed and multiple errors > returned). In the php_mssql.c for PHP 4.3.4 the block at line 1145 > reads: > > while ((num_fields = dbnumcols(mssql_ptr->link)) <= 0 && retvalue == > SUCCEED) { > retvalue = dbresults(mssql_ptr->link); > } > > According to Microsoft > (http://msdn.microsoft.com/library/en-us/dblibc/dbc_pdc04e_52sz.asp), > however: > > "You must call dbresults until it returns NO_MORE_RESULTS, or > any continued use of the DBPROCESS causes the DB-Library error > 10038 'Results Pending'." > > As this code in php_mssql.c currently stands it stops looping the empty > result sets too early becuase it's looking for SUCCEED instead of > NO_MORE_RESULTS. Changing this code to: > > while ((num_fields = dbnumcols(mssql_ptr->link)) <= 0 && retvalue != > NO_MORE_RESULTS) { > retvalue = dbresults(mssql_ptr->link); > } > > causes both SQL Server error messages generated by the sample query in > the bug report to be correctly displayed and eliminates the fault. > > Michael Sisolak > msisolak@yahoo.com > > > __________________________________ > Do you Yahoo!? > Free Pop-Up Blocker - Get it now > http://companion.yahoo.com/ > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php >

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