pythongh-131809: Upgrade vendored expat to 2.7.1 (python#132192)

Author: gpshead

Diff for: Misc/NEWS.d/next/Security/2025-04-07-04-11-08.gh-issue-131809.4MBDuy.rst

@@ -0,0 +1 @@
+Update bundled libexpat to 2.7.1

Diff for: Misc/sbom.spdx.json

@@ -1068,7 +1068,7 @@ XML_SetReparseDeferralEnabled(XML_Parser parser, XML_Bool enabled);
 */
 #define XML_MAJOR_VERSION 2
 #define XML_MINOR_VERSION 7
-#define XML_MICRO_VERSION 0
+#define XML_MICRO_VERSION 1
 
 #ifdef __cplusplus
 }

Diff for: Modules/expat/expat.h

@@ -28,7 +28,7 @@
    Copyright (c) 2002-2003 Fred L. Drake, Jr. <[email protected]>
    Copyright (c) 2002-2006 Karl Waclawek <[email protected]>
    Copyright (c) 2003      Greg Stein <[email protected]>
-   Copyright (c) 2016-2024 Sebastian Pipping <[email protected]>
+   Copyright (c) 2016-2025 Sebastian Pipping <[email protected]>
    Copyright (c) 2018      Yury Gribov <[email protected]>
    Copyright (c) 2019      David Loffredo <[email protected]>
    Copyright (c) 2023-2024 Sony Corporation / Snild Dolkow <[email protected]>
@@ -127,6 +127,9 @@
 #  elif ULONG_MAX == 18446744073709551615u // 2^64-1
 #    define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "ld"
 #    define EXPAT_FMT_SIZE_T(midpart) "%" midpart "lu"
+#  elif defined(EMSCRIPTEN) // 32bit mode Emscripten
+#    define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "ld"
+#    define EXPAT_FMT_SIZE_T(midpart) "%" midpart "zu"
 #  else
 #    define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d"
 #    define EXPAT_FMT_SIZE_T(midpart) "%" midpart "u"

Diff for: Modules/expat/internal.h

@@ -12,9 +12,9 @@ fi
 
 # Update this when updating to a new version after verifying that the changes
 # the update brings in are good. These values are used for verifying the SBOM, too.
-expected_libexpat_tag="R_2_7_0"
-expected_libexpat_version="2.7.0"
-expected_libexpat_sha256="362e89ca6b8a0d46fc5740a917eb2a8b4d6356edbe016eee09f49c0781215844"
+expected_libexpat_tag="R_2_7_1"
+expected_libexpat_version="2.7.1"
+expected_libexpat_sha256="0cce2e6e69b327fc607b8ff264f4b66bdf71ead55a87ffd5f3143f535f15cfa2"
 
 expat_dir="$(realpath "$(dirname -- "${BASH_SOURCE[0]}")")"
 cd ${expat_dir}

Diff for: Modules/expat/refresh.sh

@@ -1,4 +1,4 @@
-/* 7d6840a33c250b74adb0ba295d6ec818dccebebaffc8c3ed27d0b29c28adbeb3 (2.7.0+)
+/* d19ae032c224863c1527ba44d228cc34b99192c3a4c5a27af1f4e054d45ee031 (2.7.1+)
                             __  __            _
                          ___\ \/ /_ __   __ _| |_
                         / _ \\  /| '_ \ / _` | __|
@@ -3402,12 +3402,13 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
       break;
       /* LCOV_EXCL_STOP */
     }
-    *eventPP = s = next;
     switch (parser->m_parsingStatus.parsing) {
     case XML_SUSPENDED:
+      *eventPP = next;
       *nextPtr = next;
       return XML_ERROR_NONE;
     case XML_FINISHED:
+      *eventPP = next;
       return XML_ERROR_ABORTED;
     case XML_PARSING:
       if (parser->m_reenter) {
@@ -3416,6 +3417,7 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
       }
       /* Fall through */
     default:;
+      *eventPP = s = next;
     }
   }
   /* not reached */
@@ -4332,19 +4334,21 @@ doCdataSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
       /* LCOV_EXCL_STOP */
     }
 
-    *eventPP = s = next;
     switch (parser->m_parsingStatus.parsing) {
     case XML_SUSPENDED:
+      *eventPP = next;
       *nextPtr = next;
       return XML_ERROR_NONE;
     case XML_FINISHED:
+      *eventPP = next;
       return XML_ERROR_ABORTED;
     case XML_PARSING:
       if (parser->m_reenter) {
         return XML_ERROR_UNEXPECTED_STATE; // LCOV_EXCL_LINE
       }
       /* Fall through */
     default:;
+      *eventPP = s = next;
     }
   }
   /* not reached */
@@ -5951,19 +5955,21 @@ epilogProcessor(XML_Parser parser, const char *s, const char *end,
     default:
       return XML_ERROR_JUNK_AFTER_DOC_ELEMENT;
     }
-    parser->m_eventPtr = s = next;
     switch (parser->m_parsingStatus.parsing) {
     case XML_SUSPENDED:
+      parser->m_eventPtr = next;
       *nextPtr = next;
       return XML_ERROR_NONE;
     case XML_FINISHED:
+      parser->m_eventPtr = next;
       return XML_ERROR_ABORTED;
     case XML_PARSING:
       if (parser->m_reenter) {
         return XML_ERROR_UNEXPECTED_STATE; // LCOV_EXCL_LINE
       }
     /* Fall through */
     default:;
+      parser->m_eventPtr = s = next;
     }
   }
 }
@@ -8245,7 +8251,7 @@ entityTrackingReportStats(XML_Parser rootParser, ENTITY *entity,
       (void *)rootParser, rootParser->m_entity_stats.countEverOpened,
       rootParser->m_entity_stats.currentDepth,
       rootParser->m_entity_stats.maximumDepthSeen,
-      (rootParser->m_entity_stats.currentDepth - 1) * 2, "",
+      ((int)rootParser->m_entity_stats.currentDepth - 1) * 2, "",
       entity->is_param ? "%" : "&", entityName, action, entity->textLen,
       sourceLine);
 }