2 files changed, 14 insertions, 0 deletions

diff --git a/linden/indra/llcommon/llstring.cpp b/linden/indra/llcommon/llstring.cpp
index 1f653c1..32a75c0 100644
--- a/linden/indra/llcommon/llstring.cpp
+++ b/linden/indra/llcommon/llstring.cpp
@@ -595,6 +595,18 @@ std::string utf8str_removeCRLF(const std::string& utf8str)
         return out;
 }
 
+bool LLStringOps::isHexString(const std::string& str)
+{
+        const char* buf = str.c_str();
+        int len = str.size();
+        while (--len >= 0)
+        {
+                if (!isxdigit(buf[len])) return false;
+        }
+
+        return true;
+}
+
 #if LL_WINDOWS
 // documentation moved to header. Phoenix 2007-11-27
 namespace snprintf_hack
diff --git a/linden/indra/llcommon/llstring.h b/linden/indra/llcommon/llstring.h
index 61767ac..1717479 100644
--- a/linden/indra/llcommon/llstring.h
+++ b/linden/indra/llcommon/llstring.h
@@ -175,6 +175,8 @@ public:
 
         static S32      collate(const char* a, const char* b) { return strcoll(a, b); }
         static S32      collate(const llwchar* a, const llwchar* b);
+
+        static bool isHexString(const std::string& str);
 };
 
 /**