text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66a.c
  Label Definition File: CWE78_OS_Command_Injection.strings.label.xml
  Template File: sources-sink-66a.tmpl.c
  */
  /*
   * @description
   * CWE: 78 OS Command Injection
   * BadSource: listen_socket Read data using a listen socket (server side)
   * GoodSource: Fixed string
   * Sinks: w32_spawnvp
   *    BadSink : execute command with spawnvp
   * Flow Variant: 66 Data flow: data passed in an array from one function to another in different source files
   *
   * */
  
  #include "std_testcase.h"
  
  #include <wchar.h>
  
  #ifdef _WIN32
  #define COMMAND_INT_PATH "%WINDIR%\\system32\\cmd.exe"
  #define COMMAND_INT "cmd.exe"
  #define COMMAND_ARG1 "/c"
  #define COMMAND_ARG2 "dir "
  #define COMMAND_ARG3 data
  #else /* NOT _WIN32 */
  #include <unistd.h>
  #define COMMAND_INT_PATH "/bin/sh"
  #define COMMAND_INT "sh"
  #define COMMAND_ARG1 "-c"
  #define COMMAND_ARG2 "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
  #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
  
  #include <process.h>
  
  #ifndef OMITBAD
  
  /* bad function declaration */
  void CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66b_badSink(char * dataArray[]);
  
  void CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66_bad()
  {
      char * data;
      char * dataArray[5];
      char dataBuffer[100] = COMMAND_ARG2;
      data = dataBuffer;
      {
  #ifdef _WIN32
          WSADATA wsaData;
          int wsaDataInit = 0;
  #endif
          int recvResult;
          struct sockaddr_in service;
          char *replace;
          SOCKET listenSocket = INVALID_SOCKET;
          SOCKET acceptSocket = INVALID_SOCKET;
          size_t dataLen = strlen(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(char) * (100 - dataLen - 1), 0);
              if (recvResult == SOCKET_ERROR || recvResult == 0)
              {
                  break;
              }
              /* Append null terminator */
              data[dataLen + recvResult / sizeof(char)] = '\0';
              /* Eliminate CRLF */
              replace = strchr(data, '\r');
              if (replace)
              {
                  *replace = '\0';
              }
              replace = strchr(data, '\n');
              if (replace)
              {
                  *replace = '\0';
              }
          }
          while (0);
          if (listenSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(listenSocket);
          }
          if (acceptSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(acceptSocket);
          }
  #ifdef _WIN32
          if (wsaDataInit)
          {
              WSACleanup();
          }
  #endif
      }
      /* put data in array */
      dataArray[2] = data;
      CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66b_badSink(dataArray);
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B uses the GoodSource with the BadSink */
  void CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66b_goodG2BSink(char * dataArray[]);
  
  static void goodG2B()
  {
      char * data;
      char * dataArray[5];
      char dataBuffer[100] = COMMAND_ARG2;
      data = dataBuffer;
      /* FIX: Append a fixed string to data (not user / external input) */
      strcat(data, "*.*");
      dataArray[2] = data;
      CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66b_goodG2BSink(dataArray);
  }
  
  void CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66_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__char_listen_socket_w32_spawnvp_66_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE78_OS_Command_Injection__char_listen_socket_w32_spawnvp_66_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  