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32 Commits

Author SHA1 Message Date
Evan Miller
615b625d79 Let LC_COLLATE influence string-comparison operations 
By default this will be set to the C locale, but set it to the user's
locale when string comparisons are performed from mdb-sql. Note that
this can be overridden with the LC_COLLATE environment variable.

We could infer the collation locale from the file itself, but this will
likely require a big ball of glue between the Windows locales and Unix
ones.
 2021-01-19 21:24:31 -05:00
Evan Miller
2bb31f05ee Improve bounds checking 
No particular crashes, but replace strcpy / strncpy with snprintf
and GLib functions wherever possible.
 2020-12-28 20:12:39 -05:00
Evan Miller
1b96ef4b0d Clarify mdb_unicode2ascii API and fix buffer overrun (#220) 
There was some confusion as to whether the destination buffer length
should include space for the null terminator. Some callers of the
function assumed that a terminator would be added beyond the end
of the stated buffer size, while others did not. Make everything
consistent and also fix an overrun when there was insufficient
space for the output in the non-iconv implementation.

As stated in a code comment, a better solution would follow the lead
of libxls and use wcstombs and friends when iconv is not available.
But this gets into the weeds with conversion functions named differently
across platforms. The goal here is to fix the buffer overrun.

See oss-fuzz/28773
 2020-12-19 08:24:32 -05:00
Evan Miller
a13936bd77 Support comparisons with MDB_FLOAT and MDB_DOUBLE 
See https://github.com/mdbtools/mdbtools/issues/105
 2020-09-02 21:24:24 -04:00
Evan Miller
90ee7bfcb5 Remove references to dmalloc 
There are more modern tools for memory debugging, get rid of DMALLOC
crap in the source code.

I've left one reference in backend.c to prevent a merge conflict but
this can be removed later.
 2020-08-20 08:59:08 -04:00
Evan Miller
8a63560ca1 Merge https://github.com/markord/mdbtools 
Enable memo field filtering. See:

brianb/mdbtools#140
brianb/mdbtools#141
 2020-08-03 17:25:09 -04:00
Mark Ord
f893efb401 Unable to filter on memo field #140 
* Added case statement for comparing memo fields
 2018-05-26 10:37:05 -07:00
leecher1337
2355aec912 At least for me IS NULL and IS NOT NULL are the wrong way round in SQL, fixed it. 2016-08-29 12:14:51 -04:00
leecher1337
e2449c11f3 Added strptime function to SQL parser as a feature. This is needed to i.e. be able to query time-fields in DB and to use dates <1.1.1970 and >19.1.2038. All changes should be backwards-compatible to not break existing queries. 2015-08-30 11:23:57 +02:00
leecher1337
5ce4cc5528 At least for me IS NULL and IS NOT NULL are the wrong way round in SQL, fixed it. 2015-08-21 14:50:34 +02:00
Nirgal Vourgère
2a70e16a8b Allow CFLGAS="-std=c99 -D_POSIX_C_SOURCE=2" 
Use glib function:
strcasecmp -> g_ascii_strcasecmp
bzero -> memset
strdup -> g_strdump

Don't use arithmetic void*+int
 2014-12-28 12:36:55 +01:00
Nirgal Vourgère
7841d30d43 Revert use of config.h 
Revert
7162e8db74
088493d499

And drop AC_CONFIG_HEADERS so that config goes though the command line.
No longer generating config.h, update .gitignore
 2013-07-15 02:42:12 +02:00
Nirgal Vourgère
7162e8db74 Include config.h in all .c files 
Need to be the first file since it may define large files support
and other options.
 2013-07-04 10:53:13 +02:00
Jean-Michel Vourgère
1db0a89ee2 Removed last compilation warnings, updated TODO 2012-07-02 23:29:05 +02:00
Nirgal Vourgre
dd0f4c3819 Patch docs.diff from Nirgal 2011-08-28 19:53:29 -04:00
Nirgal Vourgre
fba597765d Patch wheredate.diff from Nirgal 2011-08-28 19:47:18 -04:00
whydoubt
b4d9eb5225 Remove some unused variables 2005-03-13 22:14:06 +00:00
whydoubt
d271b5fae5 Better compressed text handling 2004-12-11 06:07:20 +00:00
brianb
fa8d24dd2b patch from Wind Li for iconv on jet3. 
Small changes from me for writing.
 2004-12-01 23:31:48 +00:00
brianb
34a9eac4ea iconv conversion code 2004-11-26 05:22:52 +00:00
whydoubt
e121a82946 Lots more gcc warnings fixes 2004-07-09 12:47:04 +00:00
brianb
fed589b2e7 rework of patch #879693 to support 0=1 in where clause 2004-02-08 21:54:20 +00:00
brianb
fcf4e1a53a fixed booleans 2004-02-07 00:58:29 +00:00
brianb
5f02ba4fd2 add IS NULL/IS NOT NULL support, patches 2004-02-06 23:55:18 +00:00
brianb
a74094c667 sync up, see ChangeLog for details 2004-02-06 02:34:20 +00:00
brianb
aa19a0892f resync...no idea what's in here, it's been sitting on the shelf for a while 2003-04-29 17:55:09 +00:00
brianb
75216d7a90 index work 
dmalloc headers
mem leak fixes
start on i18n
 2003-01-28 23:51:06 +00:00
brianb
b0942cbf7d fix for like clause in jet4 2003-01-21 23:43:31 +00:00
brianb
092e2b79af query planner stuff 
some gcc -Wall fixes
added suport for _ in identifier names in SQL
gmdb2 manual additions
 2003-01-20 16:04:24 +00:00
brianb
606887dfbd added like operator and handling of string sargs 
Added index stuff to HACKING file
Misc. mdb-sql updates
 2001-04-20 21:06:46 +00:00
brianb
5ceaff28ce new index code 2001-04-01 22:10:15 +00:00
brianb
b40283a8f8 First cut of sarg (search argument) support. 2001-03-29 04:50:35 +00:00