Add Python 3.14 support, fix buffer allocation for bigint and update workflow to use macos latest

.github/workflows/bld_wheels_and_upload.yml

@@ -19,12 +19,12 @@ jobs:
         os: [windows-latest]
 
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.22.0
+        uses: pypa/cibuildwheel@v3.1.4
         env:
           CIBW_BUILD: "*-win_amd64"
-          CIBW_SKIP: "cp36-* pp*"
+          CIBW_SKIP: "cp38-*"
 
       - uses: actions/upload-artifact@v4.4.3
         with:
@@ -39,12 +39,12 @@ jobs:
         os: [windows-latest]
 
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.22.0
+        uses: pypa/cibuildwheel@v3.1.4
         env:
           CIBW_BUILD: "*-win32"
-          CIBW_SKIP: "cp36-* pp*"
+          CIBW_SKIP: "cp38-*"
 
       - uses: actions/upload-artifact@v4.4.3
         with:
@@ -59,12 +59,14 @@ jobs:
         os: [ubuntu-latest]
 
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.22.0
+        uses: pypa/cibuildwheel@v3.1.4
         env:
+         CIBW_ARCHS_LINUX: "x86_64 i686"
+         CIBW_MANYLINUX_I686_IMAGE: manylinux2014
          CIBW_MANYLINUX_X86_64_IMAGE: manylinux2014
-         CIBW_SKIP: "cp36-* *-musllinux_* pp* *-*linux_{aarch64,ppc64le}"
+         CIBW_SKIP: "cp38-* *-musllinux_* *-*linux_{aarch64,ppc64le}"
          CIBW_REPAIR_WHEEL_COMMAND_LINUX:
             auditwheel repair
               --exclude libdb2.so.1
@@ -86,17 +88,17 @@ jobs:
 
   build_wheels_macos_arm64:
     name: Build wheels on macOS ARM64
-    runs-on: macos-14
+    runs-on: macos-latest
     strategy:
       matrix:
         architecture: [arm64]
 
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.22.0
+        uses: pypa/cibuildwheel@v3.1.4
         env:
-          CIBW_SKIP: "cp36-* cp37-* cp38-* pp*"
+          CIBW_SKIP: "cp38-*"
           MACOSX_DEPLOYMENT_TARGET: 14.0
 
       - uses: actions/upload-artifact@v4.4.3
@@ -106,17 +108,18 @@ jobs:
 
   build_wheels_macos_x86:
     name: Build wheels for macOS x86_64
-    runs-on: macos-13
+    runs-on: macos-15-intel
     strategy:
       matrix:
         architecture: [x86_64]
 
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.22.0
+        uses: pypa/cibuildwheel@v3.1.4
         env:
-          CIBW_SKIP: "cp36-* pp*"
+          CIBW_ARCHS: "x86_64"
+          CIBW_SKIP: "cp38-*"
           MACOSX_DEPLOYMENT_TARGET: 10.15
 
       - uses: actions/upload-artifact@v4.4.3
@@ -128,7 +131,7 @@ jobs:
     name: Build source distribution
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5
       - name: Install Python dependencies
         run: python -m pip install --upgrade pip build
       - name: Build sdist
@@ -170,7 +173,7 @@ jobs:
     #upload to PyPI on every tag starting with 'v'
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
     steps:
-    - uses: actions/download-artifact@v4.1.7
+    - uses: actions/download-artifact@v5
       with:
         path: dist
         pattern: ibmdb-*

README.md

@@ -22,7 +22,7 @@ https://github.com/ibmdb/python-ibmdb/wiki/APIs
 
 ## Pre-requisites
 
-Install Python 3.7 <= 3.13. The minimum python version supported by driver is python 3.7 and the latest version supported is python 3.13.
+Install Python 3.9 <= 3.14. The minimum python version supported by driver is python 3.9 and the latest version supported is python 3.14.
 MacOS arm64 is supported Python 3.9 onwards.
 
 ### To install ibm_db on z/OS system

ibm_db.c

@@ -7881,9 +7881,9 @@ static int _python_ibm_db_bind_data(stmt_handle *stmt_res, param_node *curr, PyO
 #endif
                 curr->svalue = PyBytes_AsString(tempobj);
                 curr->ivalue = strlen(curr->svalue);
-                curr->svalue = memcpy(PyMem_Malloc((sizeof(char)) * (curr->ivalue + 1)), curr->svalue, curr->ivalue);
+                size_t alloc_size = (curr->param_size > curr->ivalue) ? curr->param_size : curr->ivalue;
+                curr->svalue = memcpy(PyMem_Malloc((sizeof(char)) * (alloc_size + 1)), curr->svalue, curr->ivalue);
                 curr->svalue[curr->ivalue] = '\0';
-                curr->bind_indicator = curr->ivalue;
                 snprintf(messageStr, sizeof(messageStr),
                          "Processing single value: svalue=%s, ivalue=%d, bind_indicator=%d", curr->svalue, curr->ivalue, curr->bind_indicator);
                 LogMsg(DEBUG, messageStr);

setup.py

@@ -546,13 +546,12 @@ def print_exception( e, url):
                     'Operating System :: MacOS',
                     'Operating System :: MacOS :: MacOS X',
                     'Programming Language :: Python',
-                    'Programming Language :: Python :: 3.7',
-                    'Programming Language :: Python :: 3.8',
                     'Programming Language :: Python :: 3.9',
                     'Programming Language :: Python :: 3.10',
                     'Programming Language :: Python :: 3.11',
                     'Programming Language :: Python :: 3.12',
                     'Programming Language :: Python :: 3.13',
+                    'Programming Language :: Python :: 3.14',
                     'Topic :: Database :: Front-Ends'],
 
     long_description = open(readme).read(),