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Avoid the possibility of integer overflow on the --pagecache option to

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the CLI. See [forum:10a2892377|forum post 10a2892377]

FossilOrigin-Name: d3d13df31a97648f952beb2e1a783f947a80ec843227985ad9ebd14452d2f654
This commit is contained in:
drh
2020-09-28 13:34:05 +00:00
parent 273ee15121
commit f573b4fb94
3 changed files with 14 additions and 11 deletions
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14
manifest
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@@ -1,5 +1,5 @@
C Fix\sharmless\scompiler\swarning\sseen\swith\sMSVC. C Avoid\sthe\spossibility\sof\sinteger\soverflow\son\sthe\s--pagecache\soption\sto\nthe\sCLI.\sSee\s[forum:10a2892377|forum\spost\s10a2892377]
D 2020-09-21T20:18:44.298 D 2020-09-28T13:34:05.229
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -536,7 +536,7 @@ F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
F src/resolve.c 97b91fb25d86881ff20c9ad2ad98412c6c1bb5f7d6c9bb044db250cbc9cfcd4b F src/resolve.c 97b91fb25d86881ff20c9ad2ad98412c6c1bb5f7d6c9bb044db250cbc9cfcd4b
F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92 F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
F src/select.c 6c3f7d60295f06ce7fa128bb23b1159648f0aa96a78c257af35dfef727ac63f1 F src/select.c 6c3f7d60295f06ce7fa128bb23b1159648f0aa96a78c257af35dfef727ac63f1
F src/shell.c.in 0fd9eca42731d94a293d7b12a76c6614976f8bdbb2874768ad2e6ddbb86dffd8 F src/shell.c.in 4e6ea7bf44ace40faf2b4214b7cb336fd15d22d2f7d04b70b5aa10a7716f7be7
F src/sqlite.h.in cb9f0862e8d0f8691de95b18439ab60666f868c83bc65e3a17f0a0b44cc8f8a9 F src/sqlite.h.in cb9f0862e8d0f8691de95b18439ab60666f868c83bc65e3a17f0a0b44cc8f8a9
F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
F src/sqlite3ext.h 2d1af80082edffd71c6f96f70ad1ce6a4fb46615ad10291fc77fe0dea9ff0197 F src/sqlite3ext.h 2d1af80082edffd71c6f96f70ad1ce6a4fb46615ad10291fc77fe0dea9ff0197
@@ -1880,7 +1880,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 782163693f37aeb65209bebbaeb6659a36881b8c4b4bec778b366658488bf966 P 4591ee03d7a1ef3f0f6ad0629493fdb7a1c0ddb3277a9e87aa244cb0ca770593
R 5af95199526128dc811fede293f15c08 R 096d8fd2cb406180b5d1086b876d6b9e
U mistachkin U drh
Z 03a5a4cf0703ce5a197f76e2fac51ef2 Z 99fd9cfbb690a189978738ae4f65f4ca

2
manifest.uuid
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@@ -1 +1 @@
4591ee03d7a1ef3f0f6ad0629493fdb7a1c0ddb3277a9e87aa244cb0ca770593 d3d13df31a97648f952beb2e1a783f947a80ec843227985ad9ebd14452d2f654

9
src/shell.c.in
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@@ -10925,11 +10925,14 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
(void)cmdline_option_value(argc, argv, ++i); (void)cmdline_option_value(argc, argv, ++i);
#endif #endif
}else if( strcmp(z,"-pagecache")==0 ){ }else if( strcmp(z,"-pagecache")==0 ){
int n, sz; sqlite3_int64 n, sz;
sz = (int)integerValue(cmdline_option_value(argc,argv,++i)); sz = integerValue(cmdline_option_value(argc,argv,++i));
if( sz>70000 ) sz = 70000; if( sz>70000 ) sz = 70000;
if( sz<0 ) sz = 0; if( sz<0 ) sz = 0;
n = (int)integerValue(cmdline_option_value(argc,argv,++i)); n = integerValue(cmdline_option_value(argc,argv,++i));
if( sz>0 && n>0 && 0xffffffffffffLL/sz<n ){
n = 0xffffffffffffLL/sz;
}
sqlite3_config(SQLITE_CONFIG_PAGECACHE, sqlite3_config(SQLITE_CONFIG_PAGECACHE,
(n>0 && sz>0) ? malloc(n*sz) : 0, sz, n); (n>0 && sz>0) ? malloc(n*sz) : 0, sz, n);
data.shellFlgs |= SHFLG_Pagecache; data.shellFlgs |= SHFLG_Pagecache;