fixes bug 190549 "Textarea with lots of text within refuses to submit"

r=sicking sr=bzbarsky a=asa git-svn-id: svn://10.0.0.236/trunk@137068 18797224-902f-48f8-a5cc-f745e15eee43
2003-01-29 06:40:16 +00:00
parent f4dbfceb41
commit 57bac18c51
5 changed files with 67 additions and 64 deletions
--- a/mozilla/xpcom/io/nsStringStream.cpp
+++ b/mozilla/xpcom/io/nsStringStream.cpp
@@ -312,6 +312,10 @@ class ConstCharImpl
                                                     PRUint32 aCount, PRUint32 *result) {
                                            nsresult rv;
                                            PRInt32 maxCount = mLength - mOffset;
+                                            if (maxCount == 0) {
+                                                *result = 0;
+                                                return NS_OK;
+                                            }
                                            if ((PRInt32)aCount > maxCount)
                                                aCount = maxCount;
                                            rv = writer(this, closure, mConstString + mOffset,