From eaacb4ac37ae111758f25711eff268a3575ae020 Mon Sep 17 00:00:00 2001
From: drh <>
Date: Sun, 2 Nov 2025 22:57:26 +0000
Subject: [PATCH] Add pedantic OOM detection logic to some disused diagnostic
 and test code. No changes to any deliverables.

FossilOrigin-Name: abb6945fc62a1855786bda1f473edef0e937a791c453387a0859a6ce0451635a
---
 ext/misc/vtablog.c |  4 ++++
 manifest           | 18 +++++++++---------
 manifest.uuid      |  2 +-
 mptest/mptest.c    |  4 ++++
 tool/loadfts.c     |  1 +
 tool/showstat4.c   |  1 +
 6 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/ext/misc/vtablog.c b/ext/misc/vtablog.c
index 44acc32e67..2b3e303559 100644
--- a/ext/misc/vtablog.c
+++ b/ext/misc/vtablog.c
@@ -206,6 +206,10 @@ static int vtablogConnectCreate(
   }
   if( zSchema==0 ){
     zSchema = sqlite3_mprintf("%s","CREATE TABLE x(a,b);");
+    if( zSchema==0 ){
+      rc = SQLITE_NOMEM;
+      goto vtablog_end_connect;
+    }
   }
   printf("  schema = '%s'\n", zSchema);
   rc = sqlite3_declare_vtab(db, zSchema);
diff --git a/manifest b/manifest
index 20e0a64e1b..fa4b667451 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Update\sthe\stest/walthread.test\stesting\sscript\sso\sthat\sit\suses\sa\srandom\ndatabase\sname.
-D 2025-11-01T20:14:43.048
+C Add\spedantic\sOOM\sdetection\slogic\sto\ssome\sdisused\sdiagnostic\sand\stest\scode.\nNo\schanges\sto\sany\sdeliverables.
+D 2025-11-02T22:57:26.993
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -410,7 +410,7 @@ F ext/misc/uuid.c 5bb2264c1b64d163efa46509544fd7500cb8769cb7c16dd52052da8d961505
 F ext/misc/vfslog.c 3932ab932eeb2601dbc4447cb14d445aaa9fbe43b863ef5f014401c3420afd20
 F ext/misc/vfsstat.c 0b23c0a69a2b63dc0ef0af44f9c1fc977300c480a1f7a9814500369d8211f56e
 F ext/misc/vfstrace.c 0e4b8b17ac0675ea90f6d168d8214687e06ca3efbc0060aad4814994d82b41fb
-F ext/misc/vtablog.c 9f7e02e9e8de585f3bfb48405db36c2eb4b680a23a67d7a4b738dd20f6ad7aec
+F ext/misc/vtablog.c 2d04386c2f5a3bb93bc9ae978f0b7dcd5a264e126abd640dd6d82aa9067cbd48
 F ext/misc/vtshim.c e5bce24ab8c532f4fdc600148718fe1802cb6ed57417f1c1032d8961f72b0e8f
 F ext/misc/wholenumber.c 0fa0c082676b7868bf2fa918e911133f2b349bcdceabd1198bba5f65b4fc0668
 F ext/misc/windirent.h 02211ce51f3034c675f2dbf4d228194d51b3ee05734678bad5106fff6292e60c
@@ -663,7 +663,7 @@ F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
 F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
 F mptest/crash01.test 61e61469e257df0850df4293d7d4d6c2af301421
 F mptest/crash02.subtest f4ef05adcd15d60e5d2bd654204f2c008b519df8
-F mptest/mptest.c aa41ace6dbc5050d76b02548d3521e6bbccae4f0
+F mptest/mptest.c 7ecf39040c1187d9cbc487409bc052f194e93c165f667c55b052690a741d9d71
 F mptest/multiwrite01.test dab5c5f8f9534971efce679152c5146da265222d
 F sqlite.pc.in 42b7bf0d02e08b9e77734a47798d1a55a9e0716b
 F sqlite3.1 1b9c24374a85dfc7eb8fa7c4266ee0db4f9609cceecfc5481cd8307e5af04366
@@ -2109,7 +2109,7 @@ F tool/index_usage.c f62a0c701b2c7ff2f3e21d206f093c123f222dbf07136a10ffd1ca15a5c
 F tool/lemon.c 8f6c122e5727cb0e5f302b8efc91489b1947a8d98206d7a1b1cfc0ed685b6e7c
 F tool/lempar.c bdffd3b233a4e4e78056c9c01fadd2bb3fe902435abde3bce3d769fdf0d5cca2
 F tool/libvers.c caafc3b689638a1d88d44bc5f526c2278760d9b9
-F tool/loadfts.c c3c64e4d5e90e8ba41159232c2189dba4be7b862
+F tool/loadfts.c 63412f9790e5e8538fbde0b4f6db154aaaf80f7a10a01e3c94d14b773a8dd5a6
 F tool/logest.c c34e5944318415de513d29a6098df247a9618c96d83c38d4abd88641fe46e669
 F tool/max-limits.c cbb635fbb37ae4d05f240bfb5b5270bb63c54439
 F tool/merge-test.tcl de76b62f2de2a92d4c1ca4f976bce0aea6899e0229e250479b229b2a1914b176
@@ -2145,7 +2145,7 @@ F tool/showdb.c 3956d71e5193162609a60e8c9edfcf09274c00cfea2b1d221261427adb2b5cca
 F tool/showjournal.c 5bad7ae8784a43d2b270d953060423b8bd480818
 F tool/showlocks.c 9cc5e66d4ebbf2d194f39db2527ece92077e86ae627ddd233ee48e16e8142564
 F tool/showshm.c a0ab6ec32dd1f11218ca2a4018f8fb875b59414801ab8ceed8b2e69b7b45a809
-F tool/showstat4.c 0682ebea7abf4d3657f53c4a243f2e7eab48eab344ed36a94bb75dcd19a5c2a1
+F tool/showstat4.c b706fcbc4cd1a6e4a73ac32549afc4b460479d650402d64b23e8d813516e8de4
 F tool/showwal.c 11eca547980a066b081f512636151233350ac679f29ecf4ebfce7f4530230b3d
 F tool/soak1.tcl a3892082ed1079671565c044e93b55c3c7f38829aedf53cc597c65d23ffdaddf
 F tool/spaceanal.tcl 1f83962090a6b60e1d7bf92495d643e622bef9fe82ea3f2d22350dcbce9a12d0
@@ -2171,8 +2171,8 @@ F tool/version-info.c 33d0390ef484b3b1cb685d59362be891ea162123cea181cb8e6d2cf6dd
 F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee87c1b31a7
 F tool/warnings.sh d924598cf2f55a4ecbc2aeb055c10bd5f48114793e7ba25f9585435da29e7e98
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P d25a92d88923f880d6477a99f2a35528faea83e7db245f2b07db80613b4aeb8e
-R 90592ab746f3751e2ee7e35915c03115
+P ce25a758d4cea1741cb3db6384720f17faef61b352d494ab410a83a41f1721d3
+R 2800055e6677b1a1b1ea5135c68cec66
 U drh
-Z e53fd1ab0932500170aad04e560ed29f
+Z 2d5afc89f81af7d4e3e7bee3ca7202ac
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index f07064a16b..bc6eb320b6 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-ce25a758d4cea1741cb3db6384720f17faef61b352d494ab410a83a41f1721d3
+abb6945fc62a1855786bda1f473edef0e937a791c453387a0859a6ce0451635a
diff --git a/mptest/mptest.c b/mptest/mptest.c
index 5022b009e6..25a1bcc821 100644
--- a/mptest/mptest.c
+++ b/mptest/mptest.c
@@ -1037,6 +1037,10 @@ static void runScript(
         for(k=(int)strlen(zFilename)-1; k>=0 && !isDirSep(zFilename[k]); k--){}
         if( k>0 ){
           zNewFile = zToDel = sqlite3_mprintf("%.*s/%s", k,zFilename,zNewFile);
+          if( zNewFile==0 ){
+            fprintf(stderr, "out of memory\n");
+            abort();
+          }
         }
       }
       zNewScript = readFile(zNewFile);
diff --git a/tool/loadfts.c b/tool/loadfts.c
index 0000797b88..5ed03b7bdc 100644
--- a/tool/loadfts.c
+++ b/tool/loadfts.c
@@ -145,6 +145,7 @@ static void traverse(
   for(e=readdir(d); e; e=readdir(d)){
     if( strcmp(e->d_name, ".")==0 || strcmp(e->d_name, "..")==0 ) continue;
     char *zPath = sqlite3_mprintf("%s/%s", zDir, e->d_name);
+    if( zPath==0 ){ fprintf(stderr, "out of memory\n"); abort(); }
     if (e->d_type & DT_DIR) {
       traverse(zPath, pCtx, xCallback);
     }else{
diff --git a/tool/showstat4.c b/tool/showstat4.c
index b8a12ad63c..d1ff4961bb 100644
--- a/tool/showstat4.c
+++ b/tool/showstat4.c
@@ -67,6 +67,7 @@ int main(int argc, char **argv){
                         "**************\n\n");
       sqlite3_free(zIdx);
       zIdx = sqlite3_mprintf("%s", sqlite3_column_text(pStmt,0));
+      if( zIdx==0 ){ fprintf(stderr, "out of memory\n"); abort(); }
       iRow = 0;
     }
     printf("%s sample %d ------------------------------------\n", zIdx, ++iRow);
-- 
2.47.3