adding xmlMemBlocks() work on generator of an automatic API regression

* xmlmemory.c include/libxml/xmlmemory.h: adding xmlMemBlocks()
* Makefile.am gentest.py testapi.c: work on generator of an
  automatic API regression test tool.
* SAX2.c nanoftp.c parser.c parserInternals.c tree.c xmlIO.c
  xmlstring.c: various API hardeing changes as a result of running
  teh first set of automatic API regression tests.
* test/slashdot16.xml: apparently missing from CVS, commited it
Daniel

1 files changed, 6 insertions, 0 deletions

diff --git a/HTMLtree.c b/HTMLtree.c
index 9a5d35fe..dc0b0f5e 100644
--- a/HTMLtree.c
+++ b/HTMLtree.c
@@ -1053,6 +1053,9 @@ htmlSaveFile(const char *filename, xmlDocPtr cur) {
     const char *encoding;
     int ret;
 
+    if ((cur == NULL) || (filename == NULL))
+        return(-1);
+       
     xmlInitParser();
 
     encoding = (const char *) htmlGetMetaEncoding(cur);
@@ -1113,6 +1116,9 @@ htmlSaveFileFormat(const char *filename, xmlDocPtr cur,
     xmlCharEncodingHandlerPtr handler = NULL;
     int ret;
 
+    if ((cur == NULL) || (filename == NULL))
+        return(-1);
+       
     xmlInitParser();
 
     if (encoding != NULL) {