IABSD.fr/src/usr.bin/ssh/sftp-glob.c

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• Author : deraadt
  Date : 2019-11-13 04:47:52
  Hash : d493747f
  Message : stdarg.h required more broadly; ok djm

• usr.bin/ssh/sftp-glob.c

• /* $OpenBSD: sftp-glob.c,v 1.29 2019/11/13 04:47:52 deraadt Exp $ */
  /*
   * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #include <sys/types.h>
  #include <sys/stat.h>
  
  #include <dirent.h>
  #include <glob.h>
  #include <stdlib.h>
  #include <string.h>
  #include <stdarg.h>
  
  #include "xmalloc.h"
  #include "sftp.h"
  #include "sftp-common.h"
  #include "sftp-client.h"
  
  int remote_glob(struct sftp_conn *, const char *, int,
      int (*)(const char *, int), glob_t *);
  
  struct SFTP_OPENDIR {
  	SFTP_DIRENT **dir;
  	int offset;
  };
  
  static struct {
  	struct sftp_conn *conn;
  } cur;
  
  static void *
  fudge_opendir(const char *path)
  {
  	struct SFTP_OPENDIR *r;
  
  	r = xcalloc(1, sizeof(*r));
  
  	if (do_readdir(cur.conn, (char *)path, &r->dir)) {
  		free(r);
  		return(NULL);
  	}
  
  	r->offset = 0;
  
  	return((void *)r);
  }
  
  static struct dirent *
  fudge_readdir(struct SFTP_OPENDIR *od)
  {
  	static struct dirent ret;
  
  	if (od->dir[od->offset] == NULL)
  		return(NULL);
  
  	memset(&ret, 0, sizeof(ret));
  	strlcpy(ret.d_name, od->dir[od->offset++]->filename,
  	    sizeof(ret.d_name));
  
  	return(&ret);
  }
  
  static void
  fudge_closedir(struct SFTP_OPENDIR *od)
  {
  	free_sftp_dirents(od->dir);
  	free(od);
  }
  
  static int
  fudge_lstat(const char *path, struct stat *st)
  {
  	Attrib *a;
  
  	if (!(a = do_lstat(cur.conn, (char *)path, 1)))
  		return(-1);
  
  	attrib_to_stat(a, st);
  
  	return(0);
  }
  
  static int
  fudge_stat(const char *path, struct stat *st)
  {
  	Attrib *a;
  
  	if (!(a = do_stat(cur.conn, (char *)path, 1)))
  		return(-1);
  
  	attrib_to_stat(a, st);
  
  	return(0);
  }
  
  int
  remote_glob(struct sftp_conn *conn, const char *pattern, int flags,
      int (*errfunc)(const char *, int), glob_t *pglob)
  {
  	pglob->gl_opendir = fudge_opendir;
  	pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir;
  	pglob->gl_closedir = (void (*)(void *))fudge_closedir;
  	pglob->gl_lstat = fudge_lstat;
  	pglob->gl_stat = fudge_stat;
  
  	memset(&cur, 0, sizeof(cur));
  	cur.conn = conn;
  
  	return(glob(pattern, flags | GLOB_ALTDIRFUNC, errfunc, pglob));
  }