getcwd.c

/*
 * This file is part of the Green End SFTP Server.
 * Copyright (C) 2007 Richard Kettlewell
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#include "sftpcommon.h"
#include "alloc.h"
#include "debug.h"
#include "utils.h"
#include <errno.h>
#include <unistd.h>
#include <string.h>

char *sftp_getcwd(struct allocator *a) {
  char *buffer = 0;
  size_t size = 32, oldsize = 0;

  do {
    buffer = sftp_alloc_more(a, buffer, oldsize, size);
    if(getcwd(buffer, size))
      return buffer;
    else if(errno != ERANGE) {
      D(("getcwd returned error %s", strerror(errno)));
      return 0;
    }
    oldsize = size;
    size *= 2;
  } while(size);
  return 0;
}

/*
Local Variables:
c-basic-offset:2
comment-column:40
fill-column:79
indent-tabs-mode:nil
End:
*/