Fixed canonizer.c passing NULL to various functions.

query_classifier/test/canonical_tests/canonizer.c

@@ -66,10 +66,15 @@ int main(int argc, char** argv)
   
   qbuff = malloc(sizeof(GWBUF*)*lines);
   
+  for(i = 0;i<lines;i++){
+    qbuff[i] = NULL;
+  }
+
   i = 0;
   tok = strtok(buffer,"\n");
 
   while(tok){
+    if(strlen(tok) > 0){
       qin = strdup(tok);
       psize = strlen(qin);
       qbuff[i] = gwbuf_alloc(psize + 6);
@@ -83,10 +88,12 @@ int main(int argc, char** argv)
       free(qin);
       i++;
     }
+  }
 
   fdout = open(argv[2],O_TRUNC|O_CREAT|O_WRONLY,S_IRWXU|S_IXGRP|S_IXOTH);
 
   for(i = 0;i<lines;i++){
+    if(qbuff[i]){
       parse_query(qbuff[i]);
       tok = skygw_get_canonical(qbuff[i]);
       write(fdout,tok,strlen(tok));
@@ -94,6 +101,8 @@ int main(int argc, char** argv)
       gwbuf_free(qbuff[i]);
     }
     
+  }
+
   close(fdin);
   close(fdout);