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Do not allow SQLITE_LIMIT_LENGTH to be set lower than 1 as an

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SQLITE_LIMIT_LENGTH of 0 causes lots of unnecessary problems for
users of the sqlite3_str object.

FossilOrigin-Name: 8fd5b8ec4ab9b5554d27f25a4638d56e347eab78b60900f24b15a815d3731330
This commit is contained in:
drh
2021-12-06 15:40:24 +00:00
parent 38ed1ceb5a
commit f6a4ef144e
3 changed files with 9 additions and 7 deletions
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@@ -1,5 +1,5 @@
C Do\snot\sallow\scertain\sdangerous\s".testctrl"\scommands\sin\ssafe\smode. C Do\snot\sallow\sSQLITE_LIMIT_LENGTH\sto\sbe\sset\slower\sthan\s1\sas\san\s\nSQLITE_LIMIT_LENGTH\sof\s0\scauses\slots\sof\sunnecessary\sproblems\sfor\nusers\sof\sthe\ssqlite3_str\sobject.
D 2021-12-06T15:24:36.293 D 2021-12-06T15:40:24.187
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F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -514,7 +514,7 @@ F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
F src/insert.c e0293a6f686e18cb2c9dd0619a731518e0109d7e1f1db1932974659e7843cfd1 F src/insert.c e0293a6f686e18cb2c9dd0619a731518e0109d7e1f1db1932974659e7843cfd1
F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
F src/loadext.c e1dcff1c916bf6834e150b492eddda5d9792453182d2ad64294d2266b6e93c4c F src/loadext.c e1dcff1c916bf6834e150b492eddda5d9792453182d2ad64294d2266b6e93c4c
F src/main.c e94230dba03f44b73c52abc8b814468a0cb6d4a66d71af33452edd78ed1b1228 F src/main.c 1ea70751e6005ab6a9f784730fa0919efaa6639440a287deb73cb711e5aae57a
F src/malloc.c ef796bcc0e81d845d59a469f1cf235056caf9024172fd524e32136e65593647b F src/malloc.c ef796bcc0e81d845d59a469f1cf235056caf9024172fd524e32136e65593647b
F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
F src/mem1.c c12a42539b1ba105e3707d0e628ad70e611040d8f5e38cf942cee30c867083de F src/mem1.c c12a42539b1ba105e3707d0e628ad70e611040d8f5e38cf942cee30c867083de
@@ -1933,7 +1933,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
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U drh U drh
Z c109fbe5b7da812b5ec8b08a3717b168 Z 860c42735bbc5c02ee56a87604c8521a

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manifest.uuid
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@@ -1 +1 @@
080e72d119b836c49916201bf135445aa7d53cefe40a47437a93448c4d0f41cd 8fd5b8ec4ab9b5554d27f25a4638d56e347eab78b60900f24b15a815d3731330

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src/main.c
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@@ -2857,6 +2857,8 @@ int sqlite3_limit(sqlite3 *db, int limitId, int newLimit){
if( newLimit>=0 ){ /* IMP: R-52476-28732 */ if( newLimit>=0 ){ /* IMP: R-52476-28732 */
if( newLimit>aHardLimit[limitId] ){ if( newLimit>aHardLimit[limitId] ){
newLimit = aHardLimit[limitId]; /* IMP: R-51463-25634 */ newLimit = aHardLimit[limitId]; /* IMP: R-51463-25634 */
}else if( newLimit<1 && limitId==SQLITE_LIMIT_LENGTH ){
newLimit = 1;
} }
db->aLimit[limitId] = newLimit; db->aLimit[limitId] = newLimit;
} }