efl/legacy/evil/src/lib/evil_unistd.c

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif /* HAVE_CONFIG_H */

#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif /* HAVE_ERRNO_H */

#define WIN32_LEAN_AND_MEAN
#include <winsock2.h>
#undef WIN32_LEAN_AND_MEAN

#include "Evil.h"
#include "evil_private.h"

/*
 * Process identifer related functions
 *
 */

pid_t
getpid(void)
{
  return (pid_t)GetCurrentProcessId();
}

char *
evil_getcwd(char *buffer, size_t size)
{
#if defined(__CEGCC__) || defined(__MINGW32CE__)
   wchar_t wpath[PATH_MAX];
   char   *cpath;
   char   *delim;
   DWORD   ret = 0;

   if (size <= 0)
     return NULL;

   ret = GetModuleFileName(GetModuleHandle(NULL), (LPWSTR)&wpath, PATH_MAX);

   if (!ret)
     {
        _evil_error_display(__FUNCTION__, ret);
        return NULL;
     }

   cpath = evil_wchar_to_char(wpath);
   if (!cpath)
     return NULL;

   if (strlen(cpath) >= (size - 1))
     {
        free(cpath);
        return NULL;
     }

   delim = strrchr(cpath, '\\');
   if (delim)
     *delim = '\0';

   if (!buffer)
     {
        buffer = (char *)malloc(sizeof(char) * size);
        if (!buffer)
          {
             free(cpath);
             return NULL;
          }
     }

   strcpy(buffer, cpath);
   free(cpath);

   return buffer;
#else
   return _getcwd(buffer, size);
#endif /* ! __CEGCC__ && ! __MINGW32CE__ */
}


/*
 * Sockets and pipe related functions
 *
 */

int
evil_sockets_init(void)
{
   WSADATA wsa_data;

   return (WSAStartup(MAKEWORD(2, 2), &wsa_data) == 0) ? 1 : 0;
}

void
evil_sockets_shutdown(void)
{
   WSACleanup();
}

/*
 * The code of the following functions has been kindly offered
 * by Tor Lillqvist.
 */
int
evil_pipe(int *fds)
{
   struct sockaddr_in saddr;
   struct timeval     tv;
   SOCKET             temp;
   SOCKET             socket1 = INVALID_SOCKET;
   SOCKET             socket2 = INVALID_SOCKET;
   u_long             arg;
   fd_set             read_set;
   fd_set             write_set;
   int                len;

   temp = socket (AF_INET, SOCK_STREAM, 0);

   if (temp == INVALID_SOCKET)
     goto out0;

   arg = 1;
   if (ioctlsocket (temp, FIONBIO, &arg) == SOCKET_ERROR)
     goto out0;

   memset (&saddr, 0, sizeof (saddr));
   saddr.sin_family = AF_INET;
   saddr.sin_port = 0;
   saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);

   if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)))
     goto out0;

   if (listen (temp, 1) == SOCKET_ERROR)
     goto out0;

   len = sizeof (saddr);
   if (getsockname (temp, (struct sockaddr *)&saddr, &len))
     goto out0;

   socket1 = socket (AF_INET, SOCK_STREAM, 0);

   if (socket1 == INVALID_SOCKET)
     goto out0;

   arg = 1;
   if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
      goto out1;

   if ((connect (socket1, (struct sockaddr  *)&saddr, len) == SOCKET_ERROR) &&
       (WSAGetLastError () != WSAEWOULDBLOCK))
     goto out1;

   FD_ZERO (&read_set);
   FD_SET (temp, &read_set);

   tv.tv_sec = 0;
   tv.tv_usec = 0;

   if (select (0, &read_set, NULL, NULL, NULL) == SOCKET_ERROR)
     goto out1;

   if (!FD_ISSET (temp, &read_set))
     goto out1;

   socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
   if (socket2 == INVALID_SOCKET)
     goto out1;

   FD_ZERO (&write_set);
   FD_SET (socket1, &write_set);

   tv.tv_sec = 0;
   tv.tv_usec = 0;

   if (select (0, NULL, &write_set, NULL, NULL) == SOCKET_ERROR)
     goto out2;

   if (!FD_ISSET (socket1, &write_set))
     goto out2;

   arg = 0;
   if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
     goto out2;

   arg = 0;
   if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
     goto out2;

   fds[0] = socket1;
   fds[1] = socket2;

   closesocket (temp);

   return 0;

 out2:
   closesocket (socket2);
 out1:
   closesocket (socket1);
 out0:
   closesocket (temp);

   fds[0] = INVALID_SOCKET;
   fds[1] = INVALID_SOCKET;

   return -1;
}


/*
 * Exec related functions
 *
 */

#if defined (_WIN32_WCE) && ! defined (__CEGCC__)

int execvp( const char *file, char *const argv[])
{
   return 1;
}

#endif /* _WIN32_WCE && ! __CEGCC__ */