Initialized the variables root and ri.

third_party/mongoose/mongoose.c

 // Copyright (c) 2004-2011 Sergey Lyubka
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
 //
 // The above copyright notice and this permission notice shall be included in
@@ skipping 2802 matching lines @@
                                     const char *prog,
                                     struct cgi_env_block *blk) {
   const char *s, *slash;
   struct vec var_vec, root;
   char *p;
   int  i;
 
   blk->len = blk->nvars = 0;
   blk->conn = conn;
 
+  memset(&root, 0, sizeof(root));
+
   get_document_root(conn, &root);
 
   addenv(blk, "SERVER_NAME=%s", conn->ctx->config[AUTHENTICATION_DOMAIN]);
   addenv(blk, "SERVER_ROOT=%.*s", root.len, root.ptr);
   addenv(blk, "DOCUMENT_ROOT=%.*s", root.len, root.ptr);
 
   // Prepare the environment block
   addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
   addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
   addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP
@@ skipping 76 matching lines @@
 
 static void handle_cgi_request(struct mg_connection *conn, const char *prog) {
   int headers_len, data_len, i, fd_stdin[2], fd_stdout[2];
   const char *status;
   char buf[BUFSIZ], *pbuf, dir[PATH_MAX], *p;
   struct mg_request_info ri;
   struct cgi_env_block blk;
   FILE *in, *out;
   pid_t pid;
 
+  memset(&ri, 0, sizeof(ri));
+
   prepare_cgi_environment(conn, prog, &blk);
 
   // CGI must be executed in its own directory. 'dir' must point to the
   // directory containing executable program, 'p' must point to the
   // executable program name relative to 'dir'.
   (void) mg_snprintf(conn, dir, sizeof(dir), "%s", prog);
   if ((p = strrchr(dir, DIRSEP)) != NULL) {
     *p++ = '\0';
   } else {
     dir[0] = '.', dir[1] = '\0';
@@ skipping 1322 matching lines @@
   for (i = 0; i < atoi(ctx->config[NUM_THREADS]); i++) {
     if (start_thread(ctx, (mg_thread_func_t) worker_thread, ctx) != 0) {
       cry(fc(ctx), "Cannot start worker thread: %d", ERRNO);
     } else {
       ctx->num_threads++;
     }
   }
 
   return ctx;
 }