copyback.c

来自「在linux下的聊天软件」· C语言 代码 · 共 51 行

/*
  copyback.c
  
  For Free Chat
  
  By Bill Kendrick, ported to NT by Patrick Stepp
  [e-mail], [e-mail]
  http://zippy.sonoma.edu/kendrick/
  
  September 29, 1996 - June 10, 1997
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "readline.h"
#include "copyback.h"
#include "myopen.h"


void copyback(char * dest, char * source)
{
  int c;
  FILE * fi, * fo;
  
  fo = myopen(dest, "w");
  if (fo == NULL)
    {
      printf("System is down!\n");
      exit(0);
    }
  
  fi = myopen(source, "r");
  if (fi == NULL)
    {
      printf("System is down!\n");
      exit(0);
    }
  
  do
    {
      c = fgetc(fi);
      if (c != EOF)
	fputc(c, fo);
    }
  while (c != EOF);
  
  fclose(fi);
  fclose(fo);
}