server/tun-unet: Fix stupidity in t_create.

[tripe] / common / util.c

/* -*-c-*-
 *
 * $Id: util.c,v 1.3 2004/04/08 01:36:17 mdw Exp $
 *
 * Utilities for the client and the server
 *
 * (c) 2001 Straylight/Edgeware
 */

/*----- Licensing notice --------------------------------------------------*
 *
 * This file is part of Trivial IP Encryption (TrIPE).
 *
 * TrIPE is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * TrIPE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with TrIPE; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*----- Header files ------------------------------------------------------*/

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <mLib/dstr.h>

#include "util.h"

/*----- Main code ---------------------------------------------------------*/

/* --- @u_quotify@ --- *
 *
 * Arguments:	@dstr *d@ = where to write the answer
 *		@const char *p@ = string to quotify
 *
 * Returns:	---
 *
 * Use:		Quotes the given string if necessary, according to our
 *		quoting rules.
 */

void u_quotify(dstr *d, const char *p)
{
  if (d->len)
    dstr_putc(d, ' ');
  if (*p && !p[strcspn(p, "\"' \t\n\v")])
    dstr_puts(d, p);
  else {
    dstr_putc(d, '\"');
    while (*p) {
      if (*p == '\\' || *p == '\"')
	dstr_putc(d, '\\');
      dstr_putc(d, *p++);
    }
    dstr_putc(d, '\"');
  }
}

/*----- That's all, folks -------------------------------------------------*/