fixed runaway memory alloc bug on 64-bit in ParseString found by sirius-m

git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@74 1a98c847-1fd6-4fd8-948a-caf3550aa51b

1 files changed, 10 insertions, 4 deletions

diff --git a/util.cpp b/util.cpp
index 09de89b10f..acfbcd6c90 100644
--- a/util.cpp
+++ b/util.cpp
@@ -282,15 +282,21 @@ bool error(const char* format, ...)
 

 void ParseString(const string& str, char c, vector<string>& v)

 {

-    unsigned int i1 = 0;

-    unsigned int i2;

-    do

+    if (str.empty())

+        return;

+    string::size_type i1 = 0;

+    string::size_type i2;

+    loop

     {

         i2 = str.find(c, i1);

+        if (i2 == str.npos)

+        {

+            v.push_back(str.substr(i1));

+            return;

+        }

         v.push_back(str.substr(i1, i2-i1));

         i1 = i2+1;

     }

-    while (i2 != str.npos);

 }