text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE78_OS_Command_Injection__wchar_t_listen_socket_execlp_17.c
  Label Definition File: CWE78_OS_Command_Injection.strings.label.xml
  Template File: sources-sink-17.tmpl.c
  */
  /*
   * @description
   * CWE: 78 OS Command Injection
   * BadSource: listen_socket Read data using a listen socket (server side)
   * GoodSource: Fixed string
   * Sink: execlp
   *    BadSink : execute command with wexeclp
   * Flow Variant: 17 Control flow: for loops
   *
   * */
  
  #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"ls"
  #define COMMAND_ARG2 L"-la"
  #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
  #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 LISTEN_BACKLOG 5
  
  #ifdef _WIN32
  #include <process.h>
  #define EXECLP _wexeclp
  #else /* NOT _WIN32 */
  #define EXECLP execlp
  #endif
  
  #ifndef OMITBAD
  
  void CWE78_OS_Command_Injection__wchar_t_listen_socket_execlp_17_bad()
  {
      int i;
      wchar_t * data;
      wchar_t dataBuffer[100] = L"";
      data = dataBuffer;
      for(i = 0; i < 1; i++)
      {
          {
  #ifdef _WIN32
              WSADATA wsaData;
              int wsaDataInit = 0;
  #endif
              int recvResult;
              struct sockaddr_in service;
              wchar_t *replace;
              SOCKET listenSocket = INVALID_SOCKET;
              SOCKET acceptSocket = 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 listen socket */
                  listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
                  if (listenSocket == INVALID_SOCKET)
                  {
                      break;
                  }
                  memset(&service, 0, sizeof(service));
                  service.sin_family = AF_INET;
                  service.sin_addr.s_addr = INADDR_ANY;
                  service.sin_port = htons(TCP_PORT);
                  if (bind(listenSocket, (struct sockaddr*)&service, sizeof(service)) == SOCKET_ERROR)
                  {
                      break;
                  }
                  if (listen(listenSocket, LISTEN_BACKLOG) == SOCKET_ERROR)
                  {
                      break;
                  }
                  acceptSocket = accept(listenSocket, NULL, NULL);
                  if (acceptSocket == SOCKET_ERROR)
                  {
                      break;
                  }
                  /* Abort on error or the connection was closed */
                  recvResult = recv(acceptSocket, (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 (listenSocket != INVALID_SOCKET)
              {
                  CLOSE_SOCKET(listenSocket);
              }
              if (acceptSocket != INVALID_SOCKET)
              {
                  CLOSE_SOCKET(acceptSocket);
              }
  #ifdef _WIN32
              if (wsaDataInit)
              {
                  WSACleanup();
              }
  #endif
          }
      }
      /* wexeclp - 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 */
      EXECLP(COMMAND_INT, COMMAND_INT, COMMAND_ARG1, COMMAND_ARG2, COMMAND_ARG3, NULL);
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() - use goodsource and badsink by changing the conditions on the for statements */
  static void goodG2B()
  {
      int h;
      wchar_t * data;
      wchar_t dataBuffer[100] = L"";
      data = dataBuffer;
      for(h = 0; h < 1; h++)
      {
          /* FIX: Append a fixed string to data (not user / external input) */
          wcscat(data, L"*.*");
      }
      /* wexeclp - 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 */
      EXECLP(COMMAND_INT, COMMAND_INT, COMMAND_ARG1, COMMAND_ARG2, COMMAND_ARG3, NULL);
  }
  
  void CWE78_OS_Command_Injection__wchar_t_listen_socket_execlp_17_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_listen_socket_execlp_17_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE78_OS_Command_Injection__wchar_t_listen_socket_execlp_17_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  