Fix a problem with handling SQLITE_FCNTL_MMAP_SIZE requests with a negative

parameter in os_unix.c.

FossilOrigin-Name: 4249fcf7b0c0233f9b3ba5139702738d5221c5309240e6e91dc139eff59471fe

diff --git a/manifest b/manifest
index 40348eadcad116bf1d8b4ba86327f80c9049530c..5a37dac9d074c070edf2ea2cf58aa9bd7d5ee768 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Update\sbigmmap.test\sto\saccount\sfor\sbuilds\sthat\suse\n"-DSQLITE_MAX_MMAP_SIZE=<integer-constant>LL".
-D 2017-08-07T18:27:19.354
+C Fix\sa\sproblem\swith\shandling\sSQLITE_FCNTL_MMAP_SIZE\srequests\swith\sa\snegative\nparameter\sin\sos_unix.c.
+D 2017-08-07T18:54:10.201
 F Makefile.in d9873c9925917cca9990ee24be17eb9613a668012c85a343aef7e5536ae266e8
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 02b469e9dcd5b7ee63fc1fb05babc174260ee4cfa4e0ef2e48c3c6801567a016
@@ -436,7 +436,7 @@ F src/os.c add02933b1dce7a39a005b00a2f5364b763e9a24
 F src/os.h 8e976e59eb4ca1c0fca6d35ee803e38951cb0343
 F src/os_common.h b2f4707a603e36811d9b1a13278bffd757857b85
 F src/os_setup.h 0dbaea40a7d36bf311613d31342e0b99e2536586
-F src/os_unix.c bbe39b5921b7ced6d25fcbff9fd17eb4aa101fd0bd97e1db3c3e2d526527f9de
+F src/os_unix.c 47b6c1e501902272fa23f1356e1048bcdfa89b9974a664612e4ad018a16bf533
 F src/os_win.c 2a6c73eef01c51a048cc4ddccd57f981afbec18a
 F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
 F src/pager.c 1e63b0299cf123cf38c48413ec03190f56c1e7d0ccc6573c467d8ac240b898e9
@@ -1644,7 +1644,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 46c3085dcad6372ac20eff499e17fe11680fdf4adb9186bf8b12221a5047e485
-R 917e163835aeeed6d367dbe94c0c0ca5
+P 7c8b6f1cace42ee1182c252c8e66e5679f523f4248c27d38c075ae21e7c25374
+R 798f9b25fca6a2710c43590a6d82bf28
 U dan
-Z a557a600c035a5d5a09fd207b43b667b
+Z 6e6dcb1a7a4b333e27c902b697e4e4b3

diff --git a/manifest.uuid b/manifest.uuid
index 721979933e6c423c6ad392294c87ade2ac9d0435..5b50b75668768e8bee12c77a990018fedbd30c79 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-7c8b6f1cace42ee1182c252c8e66e5679f523f4248c27d38c075ae21e7c25374
\ No newline at end of file
+4249fcf7b0c0233f9b3ba5139702738d5221c5309240e6e91dc139eff59471fe
\ No newline at end of file

diff --git a/src/os_unix.c b/src/os_unix.c
index 99a06279f3632d6f56eed148816e928180cace3f..3daa8fec9a45cf3132a8355a5620d5ec66043403 100644 (file)
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -3861,7 +3861,7 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
 
       /* The value of newLimit may be eventually cast to (size_t) and passed
       ** to mmap(). Restrict its value to 2GB if (size_t) is a 32-bit type. */
-      if( sizeof(size_t)<8 ){
+      if( newLimit>0 && sizeof(size_t)<8 ){
         newLimit = (newLimit & 0x7FFFFFFF);
       }