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Code Activity
7,666 Commits 9 Branches 238 Tags
6c0188549b0b5bfad9abfbcee37ba09d66f2465c
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339 Commits

Author SHA1 Message Date
Nick Wellnhofer
6a6a46f017 doc: Fix autolink errors 
Fix links, remove links to internal functions.
 2025-05-28 16:02:41 +02:00
Nick Wellnhofer
7bd8d1d9cc doc: Prefix autolinks with '#' 
Use `#func` instead of `func()` to ignore parameters and make all
autolinks work.
 2025-05-28 16:01:52 +02:00
Nick Wellnhofer
6f4b452742 parser: Stop using ctxt->linenumbers 
I think this was used to avoid setting the `line` member before it was
added (20+ years ago).
 2025-05-16 18:03:12 +02:00
Nick Wellnhofer
adfbeb7e08 doc: Stop using *Ptr typedefs in documentation 2025-05-16 18:03:12 +02:00
Nick Wellnhofer
a40f36e7f2 include: Stop using *Ptr typedefs in public headers 2025-05-16 18:03:12 +02:00
Nick Wellnhofer
442c1903af doc: Fix some damage from automated conversions 
Add some newlines, fix returns.
 2025-05-11 20:29:25 +02:00
Nick Wellnhofer
9bbffec568 doc: Move brief to top, params to bottom of doc comments 2025-05-06 19:51:38 +02:00
Nick Wellnhofer
cb1635a642 doc: Use @since command 2025-05-02 19:05:25 +02:00
Nick Wellnhofer
e525564f65 doc: Remove empty lines at start of block 
These lines were left over after automatic conversion.
 2025-05-02 11:42:05 +02:00
Nick Wellnhofer
e549622bc5 doc: Convert documentation to Doxygen 
Automated conversion based on a few regexes.
 2025-05-01 23:23:42 +02:00
Nick Wellnhofer
69879da88f doc: Remove email addresses from documentation 
Also remove authorship information from generated files, hash.c and
globals.c which were rewritten.
 2025-05-01 23:23:42 +02:00
Nick Wellnhofer
61890e399d doc: Prepare for conversion to Doxygen 
Fix many params in internal functions (not really necessary but Doxygen
warns about that in XML mode).

Fix formatting in a few corner cases that automatic conversion can't
handle.

Rearrange some DOC_DISABLE blocks.
 2025-05-01 23:23:42 +02:00
Nick Wellnhofer
487ee1d871 [CVE-2025-32415] schemas: Fix heap buffer overflow in xmlSchemaIDCFillNodeTables 
Don't use local variable which could contain a stale value.

Fixes #890.
 2025-04-17 12:57:56 +02:00
Nick Wellnhofer
9f8484602f malloc-fail: Fix type confusion in xmlSchemaCheckAGPropsCorrect 
Attribute groups must be marked as containing references also if an OOM
error occurred. Otherwise, references won't be resolved, leading to type
confusion in xmlSchemaCheckAGPropsCorrect later in the fixup phase.

I'm not sure why xmlSchemaFixupComponents is called at all if an error
occurred. This has lead to similar issues in the past. On the other
hand, continuing in the presence of errors helps when fuzzing.

See #344.
 2025-03-09 13:53:13 +01:00
Nick Wellnhofer
7ae8e8ac7d schemas: Make xmlSchemaDump depend on DEBUG_ENABLED 2025-02-22 21:06:34 +01:00
Nick Wellnhofer
5880a9a6bd [CVE-2024-56171] Fix use-after-free after xmlSchemaItemListAdd 
xmlSchemaItemListAdd can reallocate the items array. Update local
variables after adding item in

- xmlSchemaIDCFillNodeTables
- xmlSchemaBubbleIDCNodeTables

Fixes #828.
 2025-02-18 15:07:44 +01:00
Nick Wellnhofer
9c16a153d8 Revert "include: Make most IS_* macros private" 
This reverts commit 84a6c82ff8.
 2025-02-13 20:20:17 +01:00
Nick Wellnhofer
e41941109d schemas: Make ValidateStream take a const SAXHandler 2025-01-17 20:05:57 +01:00
Nick Wellnhofer
84a6c82ff8 include: Make most IS_* macros private 
Macros like IS_DIGIT or IS_LETTER severely pollute the C namespace.
 2024-12-21 20:01:30 +01:00
Nick Wellnhofer
3f0bac4820 malloc-fail: Handle more malloc failures in schema code 
These issues can only arise after a memory allocation failed.

- WXS_ADD_*: Add NULL check and raise error
- XML_SCHEMA_*: Make macros safe
- xmlSchemaParseUnion: Fix leak, raise error, commit after success to
  avoid memory corruption
- xmlSchemaVAddNodeQName: Restore nbItems after partial success,
  raise error
- xmlSchemaIDCAcquireTargetList: Raise error
- xmlSchemaXPathProcessHistory: Handle errors
- xmlSchemaIDCFillNodeTables: Fix leak
- xmlSchemaCheckCVCIDCKeyRef: Handle errors
- xmlSchemaVPushText: Reset flag to avoid memory corruption
- xmlSchemaNewValidCtxt: Handle errors
- xmlSchemaVDocWalk: Fix leak
- xmlSchemaInitBasicType: Handle error
- xmlSchemaCleanupTypesInternal: Fix null deref
- xmlSchemaWhiteSpaceReplace: Handle error
- xmlSchemaParseUInt: Handle error
- xmlSchemaValAtomicType: Fix leak, handle error
- xmlSchemaDateNormalize: Fix leak
 2024-12-21 19:41:16 +01:00
Nick Wellnhofer
db8cce3d27 schemas: Check reallocations for overflow 2024-12-21 19:37:38 +01:00
Nick Wellnhofer
0f4f89005d parser: Rename inputPush to xmlCtxtPushInput 2024-11-19 00:25:23 +01:00
Nick Wellnhofer
5d36664fc9 memory: Deprecate xmlGcMemSetup 2024-07-16 17:42:10 +02:00
Nick Wellnhofer
2e63656ec6 parser: Check return value of inputPush 
inputPush typically doesn't fail because we pre-allocate the input
table. The return value should be checked nevertheless.
 2024-07-08 11:27:52 +02:00
Rosen Penev
217e9b7af2 clang-tidy: don't return in void functions 
Found with readability-redundant-control-flow

Signed-off-by: Rosen Penev <rosenp@gmail.com>
 2024-06-20 20:37:34 +00:00
Nick Wellnhofer
ef8dc4f673 schemas: Add callbacks for resource loader 2024-06-12 16:36:12 +02:00
Nick Wellnhofer
869f72442a schemas: Fix ADD_ANNOTATION 
Fix adding multiple annotations.
 2024-03-17 16:14:04 +01:00
Nick Wellnhofer
d0d6174e81 valid: Rework xmlAddID 2024-03-15 19:47:07 +01:00
Benjamin Gilbert
653ef99902 schemas: fix spurious warning about truncated snprintf output 
Fix warning:

    xmlschemas.c: In function 'xmlSchemaVAttributesComplex':
    xmlschemas.c:25506:63: warning: 'snprintf' output may be truncated before the last format character [-Wformat-truncation=]
    xmlschemas.c:25506:29: note: 'snprintf' output between 3 and 13 bytes into a destination of size 12

On my system (GCC 13.2.1 x86_64) the warning only appears with -O0.
counter can't exceed 1000, so there's no real bug.
 2024-03-02 17:03:28 +09:00
Nick Wellnhofer
c8f1f4a280 doc: Improve documentation of error handlers 2023-12-21 17:36:17 +01:00
Nick Wellnhofer
531d06add6 error: Stop printing some errors by default 
Unfortunately, it's long-standing behavior for libxml2 to print all
reported errors to stderr by default. This default behavior is now
partially disabled. If no error handler is set, only parser and
validation errors are passed to a generic error handler or printed to
stderr. Other errors are still available via xmlGetLastError and can be
captured with a structured error handler.
 2023-12-21 15:02:24 +01:00
Nick Wellnhofer
06c00f6582 schemas: Improve error handling 
Introduce xmlSchema*ErrFull which checks for memory allocation failures
during error reporting.

Remove arguments from memory error handlers.

Use xmlRaiseMemoryError.

Remove TODO macro.
 2023-12-21 02:46:27 +01:00
Nick Wellnhofer
da703eaaea schemas: Fix reallocation in xmlSchemaXPathProcessHistory 
See #614.
 2023-11-05 02:03:05 +01:00
Nick Wellnhofer
45470611b0 error: Make xmlGetLastError return a const error 
This is a slight break of the API, but users really shouldn't modify the
global error struct. The goal is to make xmlLastError use static buffers
for its strings eventually. This should warn people if they're abusing
the struct.
 2023-09-22 13:29:07 +02:00
Nick Wellnhofer
4e1c13ebfd debug: Remove debugging code 
This is barely useful these days and only clutters the code base.
 2023-09-19 17:35:09 +02:00
Nick Wellnhofer
90d5b79958 schemas: Fix memory leak of annotations in notations 
Found by OSS-Fuzz.
 2023-09-14 15:30:38 +02:00
Nick Wellnhofer
d88763ccad schemas: Fix filename in xmlSchemaValidateFile 
Make sure that filename appears in error messages.
 2023-04-30 21:45:39 +02:00
Nick Wellnhofer
165f3436fc schemas: Fix line numbers in streaming validation 2023-04-30 21:45:39 +02:00
Nick Wellnhofer
57d88da675 schemas: Fix memory leak in xmlSchemaValidateStream 
Regressed in 9a82b94a.

Fixes #530.
 2023-04-30 21:45:39 +02:00
Nick Wellnhofer
e4f85f1bd2 [CVE-2023-28484] Fix null deref in xmlSchemaFixupComplexType 
Fix a null pointer dereference when parsing (invalid) XML schemas.

Thanks to Robby Simpson for the report!

Fixes #491.
 2023-04-11 14:29:50 +02:00
Nick Wellnhofer
f8efa589e8 malloc-fail: Handle malloc failures in xmlSchemaInitTypes 
Note that this changes the return value of public function
xmlSchemaInitTypes from void to int. This shouldn't break the ABI on
most platforms.

Found when investigating #500.
 2023-03-14 15:14:38 +01:00
Nick Wellnhofer
73bd5d52ae malloc-fail: Fix type confusion after xmlSchemaFixupTypeAttributeUses 
Found with libFuzzer, see #344.
 2023-03-08 13:17:49 +01:00
Nick Wellnhofer
767ae50bc9 malloc-fail: Fix null deref after xmlSchemaItemList{Add,Insert} 
Found with libFuzzer, see #344.
 2023-03-08 13:17:49 +01:00
Nick Wellnhofer
961a4f35bf malloc-fail: Fix memory leak in xmlSchemaParseUnion 
Also report malloc failure from xmlStrndup.

Found with libFuzzer, see #344.
 2023-03-08 13:17:49 +01:00
Nick Wellnhofer
260d6b8d77 malloc-fail: Fix another memory leak in xmlSchemaBucketCreate 
Found with libFuzzer, see #344.
 2023-03-08 13:17:48 +01:00
Nick Wellnhofer
31844c74df malloc-fail: Fix null deref in xmlSchemaParseUnion 
Found with libFuzzer, see #344.
 2023-03-08 13:17:48 +01:00
Nick Wellnhofer
9afb6c5fb8 malloc-fail: Fix memory leak in WXS_ADD_{LOCAL,GLOBAL} 
It's somewhat dangerous to add the cleanup code to a macro, but
otherwise we'd have to fix all the call sites.

Found with libFuzzer, see #344.
 2023-03-08 13:17:48 +01:00
Nick Wellnhofer
a5787229e5 malloc-fail: Fix memory leak in xmlSchemaBucketCreate 
Found with libFuzzer, see #344.
 2023-03-08 13:17:48 +01:00
Nick Wellnhofer
e15838ab54 malloc-fail: Fix null deref in xmlSchemaParseWildcardNs 
Found with libFuzzer, see #344.
 2023-03-08 13:17:48 +01:00
Nick Wellnhofer
ba290a8663 malloc-fail: Fix memory leak in xmlSchemaItemListAddSize 
Found with libFuzzer, see #344.
 2023-03-08 13:17:47 +01:00