--- loncom/debugging_tools/dump_db.c	2006/06/19 21:21:47	1.1
+++ loncom/debugging_tools/dump_db.c	2006/08/24 22:46:30	1.2
@@ -4,6 +4,42 @@
 #include <gdbm.h>
 #include <errno.h>
 #include <string.h>
+#include <ctype.h>
+
+static const char c2x_table[] = "0123456789abcdef";
+
+void c2x(unsigned what, unsigned char prefix, char *where,
+	 unsigned int offset)
+{
+    where[offset] = prefix;
+    where[offset+1] = c2x_table[what >> 4];
+    where[offset+2] = c2x_table[what & 0xf];
+}
+
+
+datum* http_escape(datum* data)
+{
+  datum *escaped_data;
+  escaped_data = malloc(sizeof(datum));
+  escaped_data->dsize =  (3 * data->dsize) + 3;
+  escaped_data->dptr  = malloc(escaped_data->dsize);
+  unsigned int c,i,j;
+
+  j=0;
+  for (i=0;i<data->dsize;i++) {
+    c = data->dptr[i];
+    if (!isalnum(c)) {
+      c2x(c, '%', escaped_data->dptr, j);
+      j+=3;
+    } else {
+      escaped_data->dptr[j] = c;
+      j++;
+    }
+  }
+  escaped_data->dsize=j;
+  return escaped_data;
+}
+
 
 void usage()
 {
@@ -14,22 +50,32 @@ void read_db(char *filename)
 {
   GDBM_FILE db;
   datum key, nextkey, content;
+  datum *escaped_key, *escaped_content;
   db = gdbm_open(filename, 0, GDBM_READER, 0, 0);
 
   if (db == NULL) {
-    printf("Unable to open db %s beacsue of %s (%d) -- %s (%d)\n",filename,
-	   gdbm_strerror(gdbm_errno),gdbm_errno,strerror(errno),errno);
+    printf("ERROR:Unable to open db %s because of %s (%d) -- %s (%d)\n",
+	   filename,gdbm_strerror(gdbm_errno),gdbm_errno,strerror(errno),
+	   errno);
     return;
   }
   key = gdbm_firstkey(db);
 
   while ( key.dptr ) {
     content = gdbm_fetch(db, key);
-    fwrite(key.dptr, key.dsize, sizeof(char), stdout);
+    escaped_key     = http_escape(&key);
+    escaped_content = http_escape(&content);
+    fwrite(escaped_key->dptr,
+	   escaped_key->dsize, sizeof(char), stdout);
     printf(" -> ");
-    fwrite(content.dptr, content.dsize, sizeof(char), stdout);
+    fwrite(escaped_content->dptr,
+	   escaped_content->dsize, sizeof(char), stdout);
     printf("\n");
     free(content.dptr);
+    free(escaped_content->dptr);
+    free(escaped_content);
+    free(escaped_key->dptr);
+    free(escaped_key);
     nextkey = gdbm_nextkey(db, key);
     free(key.dptr);
     key = nextkey;
@@ -61,3 +107,4 @@ int main(int argc, char  **argv)
   return 0;
 }
 
+