1 files changed, 25 insertions, 0 deletions
diff --git a/util.h b/util.h
index f192990..bf50659 100644
--- a/util.h
+++ b/util.h
@@ -30,6 +30,7 @@
 #ifndef __UTIL_H
 #define __UTIL_H
 #include <stdlib.h>
+#include <stdio.h>
 
 /* Abort on out of memory */
 static void redisOOM(void) {
@@ -37,4 +38,28 @@ static void redisOOM(void) {
     exit(1);
 }
 
+static size_t chrtos(char *buf, size_t size, char byte) {
+    size_t len = 0;
+
+    switch(byte) {
+    case '\\':
+    case '"':
+        len = snprintf(buf,size,"\"\\%c\"",byte);
+        break;
+    case '\n': len = snprintf(buf,size,"\"\\n\""); break;
+    case '\r': len = snprintf(buf,size,"\"\\r\""); break;
+    case '\t': len = snprintf(buf,size,"\"\\t\""); break;
+    case '\a': len = snprintf(buf,size,"\"\\a\""); break;
+    case '\b': len = snprintf(buf,size,"\"\\b\""); break;
+    default:
+        if (isprint(byte))
+            len = snprintf(buf,size,"\"%c\"",byte);
+        else
+            len = snprintf(buf,size,"\"\\x%02x\"",(unsigned char)byte);
+        break;
+    }
+
+    return len;
+}
+
 #endif