text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE606_Unchecked_Loop_Condition__char_connect_socket_45.c
  Label Definition File: CWE606_Unchecked_Loop_Condition.label.xml
  Template File: sources-sinks-45.tmpl.c
  */
  /*
   * @description
   * CWE: 606 Unchecked Input For Loop Condition
   * BadSource: connect_socket Read data using a connect socket (client side)
   * GoodSource: Input a number less than MAX_LOOP
   * Sinks:
   *    GoodSink: Use data as the for loop variant after checking to see if it is less than MAX_LOOP
   *    BadSink : Use data as the for loop variant without checking its size
   * Flow Variant: 45 Data flow: data passed as a static global variable from one function to another in the same source file
   *
   * */
  
  #include "std_testcase.h"
  
  #define MAX_LOOP 10000
  
  #ifndef _WIN32
  #include <wchar.h>
  #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>
  #include <unistd.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"
  
  static char * CWE606_Unchecked_Loop_Condition__char_connect_socket_45_badData;
  static char * CWE606_Unchecked_Loop_Condition__char_connect_socket_45_goodG2BData;
  static char * CWE606_Unchecked_Loop_Condition__char_connect_socket_45_goodB2GData;
  
  #ifndef OMITBAD
  
  static void badSink()
  {
      char * data = CWE606_Unchecked_Loop_Condition__char_connect_socket_45_badData;
      {
          int i, n, intVariable;
          if (sscanf(data, "%d", &n) == 1)
          {
              /* POTENTIAL FLAW: user-supplied value 'n' could lead to very large loop iteration */
              intVariable = 0;
              for (i = 0; i < n; i++)
              {
                  /* INCIDENTAL: CWE 561: Dead Code - non-avoidable if n <= 0 */
                  intVariable++; /* avoid a dead/empty code block issue */
              }
              printIntLine(intVariable);
          }
      }
  }
  
  void CWE606_Unchecked_Loop_Condition__char_connect_socket_45_bad()
  {
      char * data;
      char dataBuffer[100] = "";
      data = dataBuffer;
      {
  #ifdef _WIN32
          WSADATA wsaData;
          int wsaDataInit = 0;
  #endif
          int recvResult;
          struct sockaddr_in service;
          char *replace;
          SOCKET connectSocket = 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 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(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 (connectSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(connectSocket);
          }
  #ifdef _WIN32
          if (wsaDataInit)
          {
              WSACleanup();
          }
  #endif
      }
      CWE606_Unchecked_Loop_Condition__char_connect_socket_45_badData = data;
      badSink();
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B() uses the GoodSource with the BadSink */
  static void goodG2BSink()
  {
      char * data = CWE606_Unchecked_Loop_Condition__char_connect_socket_45_goodG2BData;
      {
          int i, n, intVariable;
          if (sscanf(data, "%d", &n) == 1)
          {
              /* POTENTIAL FLAW: user-supplied value 'n' could lead to very large loop iteration */
              intVariable = 0;
              for (i = 0; i < n; i++)
              {
                  /* INCIDENTAL: CWE 561: Dead Code - non-avoidable if n <= 0 */
                  intVariable++; /* avoid a dead/empty code block issue */
              }
              printIntLine(intVariable);
          }
      }
  }
  
  static void goodG2B()
  {
      char * data;
      char dataBuffer[100] = "";
      data = dataBuffer;
      /* FIX: Set data to a number less than MAX_LOOP */
      strcpy(data, "15");
      CWE606_Unchecked_Loop_Condition__char_connect_socket_45_goodG2BData = data;
      goodG2BSink();
  }
  
  /* goodB2G() uses the BadSource with the GoodSink */
  static void goodB2GSink()
  {
      char * data = CWE606_Unchecked_Loop_Condition__char_connect_socket_45_goodB2GData;
      {
          int i, n, intVariable;
          if (sscanf(data, "%d", &n) == 1)
          {
              /* FIX: limit loop iteration counts */
              if (n < MAX_LOOP)
              {
                  intVariable = 0;
                  for (i = 0; i < n; i++)
                  {
                      /* INCIDENTAL: CWE 561: Dead Code - non-avoidable if n <= 0 */
                      intVariable++; /* avoid a dead/empty code block issue */
                  }
                  printIntLine(intVariable);
              }
          }
      }
  }
  
  static void goodB2G()
  {
      char * data;
      char dataBuffer[100] = "";
      data = dataBuffer;
      {
  #ifdef _WIN32
          WSADATA wsaData;
          int wsaDataInit = 0;
  #endif
          int recvResult;
          struct sockaddr_in service;
          char *replace;
          SOCKET connectSocket = 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 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(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 (connectSocket != INVALID_SOCKET)
          {
              CLOSE_SOCKET(connectSocket);
          }
  #ifdef _WIN32
          if (wsaDataInit)
          {
              WSACleanup();
          }
  #endif
      }
      CWE606_Unchecked_Loop_Condition__char_connect_socket_45_goodB2GData = data;
      goodB2GSink();
  }
  
  void CWE606_Unchecked_Loop_Condition__char_connect_socket_45_good()
  {
      goodG2B();
      goodB2G();
  }
  
  #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()...");
      CWE606_Unchecked_Loop_Condition__char_connect_socket_45_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE606_Unchecked_Loop_Condition__char_connect_socket_45_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  