domacro.c

linux下ftp client程序的源码

/*
 * Copyright (c) 1985, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char     sccsid[] = "@(#)domacro.c	8.3 (Berkeley) 4/2/94";
#endif /* not lint */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <ctype.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>

#include "ftp_var.h"

void
domacro (int argc, char *argv[])
{
  int             i, j, count = 2, loopflg = 0;
  char           *cp1, *cp2, line2[200];
  struct cmd     *c;

  if (argc < 2 && !another (&argc, &argv, "macro name"))
    {
      printf ("Usage: %s macro_name.\n", argv[0]);
      code = -1;
      return;
    }
  for (i = 0; i < macnum; ++i)
    {
      if (!strncmp (argv[1], macros[i].mac_name, 9))
	{
	  break;
	}
    }
  if (i == macnum)
    {
      printf ("'%s' macro not found.\n", argv[1]);
      code = -1;
      return;
    }
  strcpy (line2, line);

  do
    {
      cp1 = macros[i].mac_start;
      while (cp1 != macros[i].mac_end)
	{
	  while (isspace (*cp1))
	    {
	      cp1++;
	    }
	  cp2 = line;
	  while (*cp1 != '\0')
	    {
	      switch (*cp1)
		{
		case '\\':
		  *cp2++ = *++cp1;
		  break;
		case '$':
		  if (isdigit (*(cp1 + 1)))
		    {
		      j = 0;
		      while (isdigit (*++cp1))
			j = 10 * j + *cp1 - '0';
		      cp1--;
		      if (argc - 2 >= j)
			{
			  strcpy (cp2, argv[j + 1]);
			  cp2 += strlen (argv[j + 1]);
			}
		      break;
		    }
		  if (*(cp1 + 1) == 'i')
		    {
		      loopflg = 1;
		      cp1++;
		      if (count < argc)
			{
			  strcpy (cp2, argv[count]);
			  cp2 += strlen (argv[count]);
			}
		      break;
		    }
		  /* intentional drop through */
		default:
		  *cp2++ = *cp1;
		  break;
		}
	      if (*cp1 != '\0')
		cp1++;
	    }
	  *cp2 = '\0';
	  makeargv ();
	  if (margv[0] == NULL)
	    return;
	  c = getcmd (margv[0]);
	  
	  if (c == (struct cmd *) -1)
	    {
	      printf ("?Ambiguous command\n");
	      code = -1;
	    }
	  else if (c == 0)
	    {
	      printf ("?Invalid command\n");
	      code = -1;
	    }
	  else if (c->c_conn && !connected)
	    {
	      printf ("Not connected.\n");
	      code = -1;
	    }
	  else
	    {
	      if (verbose)
		printf ("%s\n", line);
	      (*c->c_handler) (margc, margv);
	      if (bell && c->c_bell)
		putchar ('\007');
	      strcpy (line, line2);
	      makeargv ();
	      argc = margc;
	      argv = margv;
	    }
	  if (cp1 != macros[i].mac_end)
	    cp1++;
	}
    }
  while (loopflg && ++count < argc);
}