text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE78_OS_Command_Injection__wchar_t_connect_socket_w32_spawnlp_01.c
  Label Definition File: CWE78_OS_Command_Injection.strings.label.xml
  Template File: sources-sink-01.tmpl.c
  */
  /*
   * @description
   * CWE: 78 OS Command Injection
   * BadSource: connect_socket Read data using a connect socket (client side)
   * GoodSource: Fixed string
   * Sink: w32_spawnlp
   *    BadSink : execute command with wspawnlp
   * Flow Variant: 01 Baseline
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifdef _WIN32
  #define COMMAND_INT_PATH L"%WINDIR%\\system32\\cmd.exe"
  #define COMMAND_INT L"cmd.exe"
  #define COMMAND_ARG1 L"/c"
  #define COMMAND_ARG2 L"dir "
  #define COMMAND_ARG3 data
  #else /* NOT _WIN32 */
  #include <unistd.h>
  #define COMMAND_INT_PATH L"/bin/sh"
  #define COMMAND_INT L"sh"
  #define COMMAND_ARG1 L"-c"
  #define COMMAND_ARG2 L"ls "
  #define COMMAND_ARG3 data
  #endif
  
  #ifdef _WIN32
  #include <winsock2.h>
  #include <windows.h>
  #include <direct.h>
  #pragma comment(lib, "ws2_32") /* include ws2_32.lib when linking */
  #define CLOSE_SOCKET closesocket
  #else /* NOT _WIN32 */
  #include <sys/types.h>
  #include <sys/socket.h>
  #include <netinet/in.h>
  #include <arpa/inet.h>
  #define INVALID_SOCKET -1
  #define SOCKET_ERROR -1
  #define CLOSE_SOCKET close
  #define SOCKET int
  #endif
  
  #define TCP_PORT 27015
  #define IP_ADDRESS "127.0.0.1"
  
  #include <process.h>
  
  #ifndef OMITBAD
  
  void CWE78_OS_Command_Injection__wchar_t_connect_socket_w32_spawnlp_01_bad()
  {
      wchar_t * data;
      wchar_t dataBuffer[100] = COMMAND_ARG2;
      data = dataBuffer;
      {
  #ifdef _WIN32
          WSADATA wsaData;
          int wsaDataInit = 0;
  #endif
          int recvResult;
          struct sockaddr_in service;
          wchar_t *replace;
          SOCKET connectSocket = INVALID_SOCKET;
          size_t dataLen = wcslen(data);
          do
          {
  #ifdef _WIN32
              if (WSAStartup(MAKEWORD(2,2), &wsaData) != NO_ERROR)
              {
                  break;
              }
              wsaDataInit = 1;
  #endif
              /* POTENTIAL FLAW: Read data using a connect socket */
              connectSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
              if (connectSocket == INVALID_SOCKET)
              {
                  break;
              }
              memset(&service, 0, sizeof(service));
              service.sin_family = AF_INET;
              service.sin_addr.s_addr = inet_addr(IP_ADDRESS);
              service.sin_port = htons(TCP_PORT);
              if (connect(connectSocket, (struct sockaddr*)&service, sizeof(service)) == SOCKET_ERROR)
              {
                  break;
              }
              /* Abort on error or the connection was closed, make sure to recv one
               * less char than is in the recv_buf in order to append a terminator */
              /* Abort on error or the connection was closed */
              recvResult = recv(connectSocket, (char *)(data + dataLen), sizeof(wchar_t) * (100 - dataLen - 1), 0);
              if (recvResult == SOCKET_ERROR || recvResult == 0)
              {
                  break;
              }
              /* Append null terminator */
              data[dataLen + recvResult / sizeof(wchar_t)] = L'\0';
              /* Eliminate CRLF */
              replace = wcschr(data, L'\r');
              if (replace)
              {
                  *replace = L'\0';
              }
              replace = wcschr(data, L'\n');
              if (replace)
              {
                  *replace = L'\0';
              }
          }
          while (0);
          if (connectSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(connectSocket);
          }
  #ifdef _WIN32
          if (wsaDataInit)
          {
              WSACleanup();
          }
  #endif
      }
      /* wspawnlp - searches for the location of the command among
       * the directories specified by the PATH environment variable */
      /* POTENTIAL FLAW: Execute command without validating input possibly leading to command injection */
      _wspawnlp(_P_WAIT, COMMAND_INT, COMMAND_INT, COMMAND_ARG1, COMMAND_ARG3, NULL);
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B uses the GoodSource with the BadSink */
  static void goodG2B()
  {
      wchar_t * data;
      wchar_t dataBuffer[100] = COMMAND_ARG2;
      data = dataBuffer;
      /* FIX: Append a fixed string to data (not user / external input) */
      wcscat(data, L"*.*");
      /* wspawnlp - searches for the location of the command among
       * the directories specified by the PATH environment variable */
      /* POTENTIAL FLAW: Execute command without validating input possibly leading to command injection */
      _wspawnlp(_P_WAIT, COMMAND_INT, COMMAND_INT, COMMAND_ARG1, COMMAND_ARG3, NULL);
  }
  
  void CWE78_OS_Command_Injection__wchar_t_connect_socket_w32_spawnlp_01_good()
  {
      goodG2B();
  }
  
  #endif /* OMITGOOD */
  
  /* Below is the main(). It is only used when building this testcase on
   * its own for testing or for building a binary to use in testing binary
   * analysis tools. It is not used when compiling all the testcases as one
   * application, which is how source code analysis tools are tested.
   */
  
  #ifdef INCLUDEMAIN
  
  int main(int argc, char * argv[])
  {
      /* seed randomness */
      srand( (unsigned)time(NULL) );
  #ifndef OMITGOOD
      printLine("Calling good()...");
      CWE78_OS_Command_Injection__wchar_t_connect_socket_w32_spawnlp_01_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE78_OS_Command_Injection__wchar_t_connect_socket_w32_spawnlp_01_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  