Subversion Repositories zet86

#include <stdio.h>

#include <sys/stat.h>

#include <fcntl.h>

int main(int argc, char *argv[])

{

  int fd, count, out0, out1;

  char word[2];

  if (argc != 4) fprintf(stderr, "Syntax: %s infile evenfile oddfile\n",

                         argv[0]);

  fd=open(argv[1], O_RDONLY);

  if(fd < 0)

    {

      fprintf(stderr, "Error opening file\n");

      return 1;

    }

  out0 = open (argv[2], O_WRONLY|O_CREAT|O_TRUNC,

               S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);

  if(out0 < 0)

    {

      fprintf(stderr, "Error creating even file\n");

      return 2;

    }

  out1 = open (argv[3], O_WRONLY|O_CREAT|O_TRUNC,

               S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);

  if(out1 < 0)

    {

      fprintf(stderr, "Error creating odd file\n");

      return 3;

    }

  do {

    count = read(fd, word, 2);

    if (count > 0) write(out0, &word[0], 1);

    if (count > 1) write(out1, &word[1], 1);

  } while (count > 0);

  close (fd);

  close (out0);

  close (out1);

  return 0;

}