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Add guard code to protect from buffer overruns on long date/time input

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strings. Should go back in and look at doing this a bit more elegantly
 and (hopefully) cheaper. Probably not too bad anyway, but it seems a
 shame to scan the strings twice: once for length for this buffer overrun
 protection, and once to parse the line.
Remove use of pow() in date/time handling; was already gone from everything
 *but* the time data types.
Define macros for handling typmod manipulation for date/time types.
 Should be more robust than all of that brute-force inline code.
Rename macros for masking and typmod manipulation to put TIMESTAMP_
 or INTERVAL_ in front of the macro name, to reduce the possibility
 of name space collisions.
This commit is contained in:
Thomas G. Lockhart
2002-08-04 06:44:47 +00:00
parent e025bb7a72
commit b71310d8e0
6 changed files with 418 additions and 320 deletions
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4
src/backend/utils/adt/varlena.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varlena.c,v 1.86 2002/06/20 20:29:38 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varlena.c,v 1.87 2002/08/04 06:44:47 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@ -550,7 +550,7 @@ varstr_cmp(char *arg1, int len1, char *arg2, int len2)
/*
* Unfortunately, there is no strncoll(), so in the non-C locale
* case we have to do some memory copying. This turns out to be
* significantly slower, so we optimize the case were LC_COLLATE
* significantly slower, so we optimize the case where LC_COLLATE
* is C.
*/
if (!lc_collate_is_c())