text: /* TEMPLATE GENERATED TESTCASE FILE
  Filename: CWE194_Unexpected_Sign_Extension__connect_socket_memmove_13.c
  Label Definition File: CWE194_Unexpected_Sign_Extension.label.xml
  Template File: sources-sink-13.tmpl.c
  */
  /*
   * @description
   * CWE: 194 Unexpected Sign Extension
   * BadSource: connect_socket Read data using a connect socket (client side)
   * GoodSource: Positive integer
   * Sink: memmove
   *    BadSink : Copy strings using memmove() with the length of data
   * Flow Variant: 13 Control flow: if(global_const_five==5) and if(global_const_five!=5)
   *
   * */
  
  #include "std_testcase.h"
  
  #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 */
  # define INVALID_SOCKET -1
  # define SOCKET_ERROR -1
  # define CLOSE_SOCKET close
  # define SOCKET int
  #endif
  
  #define TCP_PORT 27015
  /* Must be at least 8 for atoi() to work properly */
  #define CHAR_ARRAY_SIZE 8
  
  #ifndef OMITBAD
  
  void CWE194_Unexpected_Sign_Extension__connect_socket_memmove_13_bad()
  {
      short data;
      /* Initialize data */
      data = 0;
      if(global_const_five==5)
      {
          {
  #ifdef _WIN32
              WSADATA wsa_data;
              int wsa_data_init = 0;
  #endif
              int recv_rv;
              struct sockaddr_in s_in;
              SOCKET connect_socket = INVALID_SOCKET;
              char input_buf[CHAR_ARRAY_SIZE];
              do
              {
  #ifdef _WIN32
                  if (WSAStartup(MAKEWORD(2,2), &wsa_data) != NO_ERROR) break;
                  wsa_data_init = 1;
  #endif
                  connect_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
                  if (connect_socket == INVALID_SOCKET) break;
                  memset(&s_in, 0, sizeof(s_in));
                  s_in.sin_family = AF_INET;
                  s_in.sin_addr.s_addr = inet_addr("127.0.0.1");
                  s_in.sin_port = htons(TCP_PORT);
                  if (connect(connect_socket, (struct sockaddr*)&s_in, sizeof(s_in)) == 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 */
                  /* POTENTIAL FLAW: Use a value input from the network */
                  recv_rv = recv(connect_socket, input_buf, CHAR_ARRAY_SIZE, 0);
                  if (recv_rv == SOCKET_ERROR || recv_rv == 0) break;
                  /* Convert to short */
                  data = (short)atoi(input_buf);
              }
              while (0);
              if (connect_socket != INVALID_SOCKET) CLOSE_SOCKET(connect_socket);
  #ifdef _WIN32
              if (wsa_data_init) WSACleanup();
  #endif
          }
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          /* FIX: Use a positive integer less than &InitialDataSize&*/
          data = 100-1;
      }
      {
          char src[100];
          char dest[100] = "";
          memset(src, 'A', 100-1);
          src[100-1] = '\0';
          if (data < 100)
          {
              /* POTENTIAL FLAW: data is interpreted as an unsigned int - if its value is negative,
               * the sign extension could result in a very large number */
              memmove(dest, src, data);
              dest[data] = '\0'; /* NULL terminate */
          }
          printLine(dest);
      }
  }
  
  #endif /* OMITBAD */
  
  #ifndef OMITGOOD
  
  /* goodG2B1() - use goodsource and badsink by changing the global_const_five==5 to global_const_five!=5 */
  static void goodG2B1()
  {
      short data;
      /* Initialize data */
      data = 0;
      if(global_const_five!=5)
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          {
  #ifdef _WIN32
              WSADATA wsa_data;
              int wsa_data_init = 0;
  #endif
              int recv_rv;
              struct sockaddr_in s_in;
              SOCKET connect_socket = INVALID_SOCKET;
              char input_buf[CHAR_ARRAY_SIZE];
              do
              {
  #ifdef _WIN32
                  if (WSAStartup(MAKEWORD(2,2), &wsa_data) != NO_ERROR) break;
                  wsa_data_init = 1;
  #endif
                  connect_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
                  if (connect_socket == INVALID_SOCKET) break;
                  memset(&s_in, 0, sizeof(s_in));
                  s_in.sin_family = AF_INET;
                  s_in.sin_addr.s_addr = inet_addr("127.0.0.1");
                  s_in.sin_port = htons(TCP_PORT);
                  if (connect(connect_socket, (struct sockaddr*)&s_in, sizeof(s_in)) == 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 */
                  /* POTENTIAL FLAW: Use a value input from the network */
                  recv_rv = recv(connect_socket, input_buf, CHAR_ARRAY_SIZE, 0);
                  if (recv_rv == SOCKET_ERROR || recv_rv == 0) break;
                  /* Convert to short */
                  data = (short)atoi(input_buf);
              }
              while (0);
              if (connect_socket != INVALID_SOCKET) CLOSE_SOCKET(connect_socket);
  #ifdef _WIN32
              if (wsa_data_init) WSACleanup();
  #endif
          }
      }
      else
      {
          /* FIX: Use a positive integer less than &InitialDataSize&*/
          data = 100-1;
      }
      {
          char src[100];
          char dest[100] = "";
          memset(src, 'A', 100-1);
          src[100-1] = '\0';
          if (data < 100)
          {
              /* POTENTIAL FLAW: data is interpreted as an unsigned int - if its value is negative,
               * the sign extension could result in a very large number */
              memmove(dest, src, data);
              dest[data] = '\0'; /* NULL terminate */
          }
          printLine(dest);
      }
  }
  
  /* goodG2B2() - use goodsource and badsink by reversing the blocks in the if statement */
  static void goodG2B2()
  {
      short data;
      /* Initialize data */
      data = 0;
      if(global_const_five==5)
      {
          /* FIX: Use a positive integer less than &InitialDataSize&*/
          data = 100-1;
      }
      else
      {
          /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
          {
  #ifdef _WIN32
              WSADATA wsa_data;
              int wsa_data_init = 0;
  #endif
              int recv_rv;
              struct sockaddr_in s_in;
              SOCKET connect_socket = INVALID_SOCKET;
              char input_buf[CHAR_ARRAY_SIZE];
              do
              {
  #ifdef _WIN32
                  if (WSAStartup(MAKEWORD(2,2), &wsa_data) != NO_ERROR) break;
                  wsa_data_init = 1;
  #endif
                  connect_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
                  if (connect_socket == INVALID_SOCKET) break;
                  memset(&s_in, 0, sizeof(s_in));
                  s_in.sin_family = AF_INET;
                  s_in.sin_addr.s_addr = inet_addr("127.0.0.1");
                  s_in.sin_port = htons(TCP_PORT);
                  if (connect(connect_socket, (struct sockaddr*)&s_in, sizeof(s_in)) == 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 */
                  /* POTENTIAL FLAW: Use a value input from the network */
                  recv_rv = recv(connect_socket, input_buf, CHAR_ARRAY_SIZE, 0);
                  if (recv_rv == SOCKET_ERROR || recv_rv == 0) break;
                  /* Convert to short */
                  data = (short)atoi(input_buf);
              }
              while (0);
              if (connect_socket != INVALID_SOCKET) CLOSE_SOCKET(connect_socket);
  #ifdef _WIN32
              if (wsa_data_init) WSACleanup();
  #endif
          }
      }
      {
          char src[100];
          char dest[100] = "";
          memset(src, 'A', 100-1);
          src[100-1] = '\0';
          if (data < 100)
          {
              /* POTENTIAL FLAW: data is interpreted as an unsigned int - if its value is negative,
               * the sign extension could result in a very large number */
              memmove(dest, src, data);
              dest[data] = '\0'; /* NULL terminate */
          }
          printLine(dest);
      }
  }
  
  void CWE194_Unexpected_Sign_Extension__connect_socket_memmove_13_good()
  {
      goodG2B1();
      goodG2B2();
  }
  
  #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()...");
      CWE194_Unexpected_Sign_Extension__connect_socket_memmove_13_good();
      printLine("Finished good()");
  #endif /* OMITGOOD */
  #ifndef OMITBAD
      printLine("Calling bad()...");
      CWE194_Unexpected_Sign_Extension__connect_socket_memmove_13_bad();
      printLine("Finished bad()");
  #endif /* OMITBAD */
      return 0;
  }
  
  #endif
  