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fuzz: Move back to xmlSetExternalEntityLoader

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xmlParserInputBufferCreateFilenameDefault can't report malloc failures.
This commit is contained in:
Nick Wellnhofer
2024-05-19 19:31:54 +02:00
parent 4fefba4cf6
commit caa8bb3848
11 changed files with 36 additions and 13 deletions
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27
fuzz/fuzz.c
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@@ -391,8 +391,10 @@ xmlFuzzMainEntity(size_t *size) {
*
* The entity loader for fuzz data.
*/
xmlParserInputBufferPtr
xmlFuzzEntityLoader(const char *URL, xmlCharEncoding enc) {
xmlParserInputPtr
xmlFuzzEntityLoader(const char *URL, const char *ID ATTRIBUTE_UNUSED,
xmlParserCtxtPtr ctxt) {
xmlParserInputPtr input;
xmlFuzzEntityInfo *entity;
if (URL == NULL)
@@ -401,7 +403,26 @@ xmlFuzzEntityLoader(const char *URL, xmlCharEncoding enc) {
if (entity == NULL)
return(NULL);
return(xmlParserInputBufferCreateMem(entity->data, entity->size, enc));
input = xmlNewInputStream(ctxt);
if (input == NULL)
return(NULL);
input->filename = (char *) xmlCharStrdup(URL);
if (input->filename == NULL) {
xmlCtxtErrMemory(ctxt);
xmlFreeInputStream(input);
return(NULL);
}
input->buf = xmlParserInputBufferCreateMem(entity->data, entity->size,
XML_CHAR_ENCODING_NONE);
if (input->buf == NULL) {
xmlCtxtErrMemory(ctxt);
xmlFreeInputStream(input);
return(NULL);
}
input->base = input->cur = xmlBufContent(input->buf->buffer);
input->end = input->base + xmlBufUse(input->buf->buffer);
return input;
}
char *