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Enhance the sqlite3_create_function() interfaces to assume a value of

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SQLITE_UTF8 is presented with a nonsense value for the preferred encoding.
This is undocumented behavior added for robustness.

FossilOrigin-Name: c1bb5cff527af6a97b025d646581c68ac9b56924ae199f86964026a7bc9724fd
This commit is contained in:
drh
2021-07-09 13:52:01 +00:00
parent f33e7795b3
commit 62f560f805
3 changed files with 32 additions and 21 deletions
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14
manifest
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@@ -1,5 +1,5 @@
C Add\sthe\susual\s"#ifdef\s__cplusplus"\smagic\sto\sheader\sfile\sext/misc/carray.h.\sAlso\supdate\scarray.h/carray.c\sto\suse\sSQLITE_API\sin\sthe\susual\sway.
D 2021-07-09T11:52:53.967
C Enhance\sthe\ssqlite3_create_function()\sinterfaces\sto\sassume\sa\svalue\sof\nSQLITE_UTF8\sis\spresented\swith\sa\snonsense\svalue\sfor\sthe\spreferred\sencoding.\nThis\sis\sundocumented\sbehavior\sadded\sfor\srobustness.
D 2021-07-09T13:52:01.084
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -508,7 +508,7 @@ F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
F src/insert.c d560dc585c50e01b015cbf924c173de88f61c8c85b3d1adb9d4865b92fff2d72
F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
F src/loadext.c 0aa9e7f08e168e3874cb54984408e3976dafdf5616d511952c425b5ac088ea3e
F src/main.c aedd8596e4dbdedacbf69fc4ff0462404effb9e6528146a1fdf4adee004053c9
F src/main.c 6df43445e0c0c45642aff43726c0b2d42fcbb73c0c5a1e805c3b5b3c9b4eb106
F src/malloc.c cbc93cdd429c4594912017d92ab656e2579aca64dbd1c6888551275bed46f25b
F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
F src/mem1.c c12a42539b1ba105e3707d0e628ad70e611040d8f5e38cf942cee30c867083de
@@ -1920,7 +1920,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P eb8af9a494fb68c0a1c600b3ac71467645b51b296fc6e2116d7d855319d59a59
R 4921ff9c6662da771dcaa161286cae4d
U dan
Z a202a1f73cdb865aaa148dd68fbda945
P 0f97c2a459bfadc2fe19e710e8845039b4434010656d311074b9594b02d0826a
R 7868302cf3bc690aec9205f019a549f7
U drh
Z f8eef76cb448b8627630bf5bdf905136

2
manifest.uuid
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@@ -1 +1 @@
0f97c2a459bfadc2fe19e710e8845039b4434010656d311074b9594b02d0826a
c1bb5cff527af6a97b025d646581c68ac9b56924ae199f86964026a7bc9724fd

15
src/main.c
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@@ -1854,9 +1854,11 @@ int sqlite3CreateFunc(
** If SQLITE_ANY is specified, add three versions of the function
** to the hash table.
*/
if( enc==SQLITE_UTF16 ){
switch( enc ){
case SQLITE_UTF16:
enc = SQLITE_UTF16NATIVE;
}else if( enc==SQLITE_ANY ){
break;
case SQLITE_ANY: {
int rc;
rc = sqlite3CreateFunc(db, zFunctionName, nArg,
(SQLITE_UTF8|extraFlags)^SQLITE_FUNC_UNSAFE,
@@ -1870,6 +1872,15 @@ int sqlite3CreateFunc(
return rc;
}
enc = SQLITE_UTF16BE;
break;
}
case SQLITE_UTF8:
case SQLITE_UTF16LE:
case SQLITE_UTF16BE:
break;
default:
enc = SQLITE_UTF8;
break;
}
#else
enc = SQLITE_UTF8;