discount-null-pointer-dereference-fixes-no-whitespace.diff

discount-null-pointer-dereference-fixes-no-whitespace.diff

diff --git a/generate.c b/generate.c
index 8e82afd..f3a1bd9 100644
--- a/generate.c
+++ b/generate.c
@@ -652,6 +652,7 @@ linkyformat(MMIOT *f, Cstring text, int image, Footnote *ref)
     if ( f->flags & IS_LABEL )
 	___mkd_reparse(T(text), S(text), tag->flags, f, 0);
     else if ( tag->link_pfx ) {
+        if (ref) {
 	printlinkyref(f, tag, T(ref->link), S(ref->link));
 
 	if ( tag->WxH ) {
@@ -669,7 +670,8 @@ linkyformat(MMIOT *f, Cstring text, int image, Footnote *ref)
 	___mkd_reparse(T(text), S(text), tag->flags, f, 0);
 	Qstring(tag->text_sfx, f);
     }
-    else
+    }
+    else if (ref)
 	Qwrite(T(ref->link) + tag->szpat, S(ref->link) - tag->szpat, f);
 
     return 1;
diff --git a/markdown.c b/markdown.c
index 99acc60..d01d5dc 100644
--- a/markdown.c
+++ b/markdown.c
@@ -784,6 +784,8 @@ quoteblock(Paragraph *p, DWORD flags)
 	int i;
 	
 	q = p->text;
+        
+        if (q) {
 	p->text = p->text->next;
 
 	if ( (i = szmarkerclass(1+T(q->text))) == 3 )
@@ -796,6 +798,7 @@ quoteblock(Paragraph *p, DWORD flags)
 
 	___mkd_freeLine(q);
     }
+    };
     return t;
 }
 
@@ -1169,6 +1172,7 @@ actually_a_table(MMIOT *f, Line *pp)
     /* second line must be only whitespace, -, |, or : */
     r = pp->next;
 
+    if (r) {
     for ( j=r->dle; j < S(r->text); ++j ) {
 	c = T(r->text)[j];
 
@@ -1176,6 +1180,7 @@ actually_a_table(MMIOT *f, Line *pp)
 	    return 0;
 	}
     }
+    }
 
     return 1;
 }