.NET CLR Injection: Modify IL Code during Run-time

/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at http://curl.haxx.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ***************************************************************************/
#include "curlcheck.h"
#include "netrc.h"
#include "memdebug.h" /* LAST include file */

static char *login;
static char *password;
static char filename[64];

static CURLcode unit_setup(void)
{
  password = strdup("");
  login = strdup("");
  return CURLE_OK;
}

static void unit_stop(void)
{
}

UNITTEST_START
  int result;

  static const char* filename1 = "log/netrc1304";
  memcpy(filename, filename1, strlen(filename1));

  /*
   * Test a non existent host in our netrc file.
   */
  result = Curl_parsenetrc("test.example.com", &login, &password, filename);
  fail_unless(result == 1, "Host not found should return 1");
  fail_unless(password[0] == 0, "password should not have been changed");
  fail_unless(login[0] == 0, "login should not have been changed");

  /*
   * Test a non existent login in our netrc file.
   */
  free(login);
  login = strdup("me");
  result = Curl_parsenetrc("example.com", &login, &password, filename);
  fail_unless(result == 0, "Host should be found");
  fail_unless(password[0] == 0, "password should not have been changed");
  fail_unless(strncmp(login, "me", 2) == 0, "login should not have been changed");

  /*
   * Test a non existent login and host in our netrc file.
   */
  free(login);
  login = strdup("me");
  result = Curl_parsenetrc("test.example.com", &login, &password, filename);
  fail_unless(result == 1, "Host should be found");
  fail_unless(password[0] == 0, "password should not have been changed");
  fail_unless(strncmp(login, "me", 2) == 0, "login should not have been changed");

  /*
   * Test a non existent login (substring of an existing one) in our
   * netrc file.
   */
  free(login);
  login = strdup("admi");
  result = Curl_parsenetrc("example.com", &login, &password, filename);
  fail_unless(result == 0, "Host should be found");
  fail_unless(password[0] == 0, "password should not have been changed");
  fail_unless(strncmp(login, "admi", 4) == 0, "login should not have been changed");

  /*
   * Test a non existent login (superstring of an existing one)
   * in our netrc file.
   */
  free(login);
  login = strdup("adminn");
  result = Curl_parsenetrc("example.com", &login, &password, filename);
  fail_unless(result == 0, "Host should be found");
  fail_unless(password[0] == 0, "password should not have been changed");
  fail_unless(strncmp(login, "adminn", 6) == 0, "login should not have been changed");

  /*
   * Test for the first existing host in our netrc file
   * with login[0] = 0.
   */
  free(login);
  login = strdup("");
  result = Curl_parsenetrc("example.com", &login, &password, filename);
  fail_unless(result == 0, "Host should have been found");
  fail_unless(strncmp(password, "passwd", 6) == 0,
              "password should be 'passwd'");
  fail_unless(strncmp(login, "admin", 5) == 0, "login should be 'admin'");

  /*
   * Test for the first existing host in our netrc file
   * with login[0] != 0.
   */
  free(password);
  password = strdup("");
  result = Curl_parsenetrc("example.com", &login, &password, filename);
  fail_unless(result == 0, "Host should have been found");
  fail_unless(strncmp(password, "passwd", 6) == 0,
              "password should be 'passwd'");
  fail_unless(strncmp(login, "admin", 5) == 0, "login should be 'admin'");

  /*
   * Test for the second existing host in our netrc file
   * with login[0] = 0.
   */
  free(password);
  password = strdup("");
  free(login);
  login = strdup("");
  result = Curl_parsenetrc("curl.example.com", &login, &password, filename);
  fail_unless(result == 0, "Host should have been found");
  fail_unless(strncmp(password, "none", 4) == 0,
              "password should be 'none'");
  fail_unless(strncmp(login, "none", 4) == 0, "login should be 'none'");

  /*
   * Test for the second existing host in our netrc file
   * with login[0] != 0.
   */
  free(password);
  password = strdup("");
  result = Curl_parsenetrc("curl.example.com", &login, &password, filename);
  fail_unless(result == 0, "Host should have been found");
  fail_unless(strncmp(password, "none", 4) == 0,
              "password should be 'none'");
  fail_unless(strncmp(login, "none", 4) == 0, "login should be 'none'");

  free(login);
  free(password);

  /* TODO:
   * Test over the size limit password / login!
   * Test files with a bad format
   */
UNITTEST_STOP