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Commit	Line	Data
	1	/* $OpenBSD: sftp-glob.c,v 1.22 2006/08/03 03:34:42 deraadt Exp $ */
	2	/*
	3	* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
	4	*
	5	* Permission to use, copy, modify, and distribute this software for any
	6	* purpose with or without fee is hereby granted, provided that the above
	7	* copyright notice and this permission notice appear in all copies.
	8	*
	9	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	10	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	11	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	12	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	13	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	14	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	15	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	16	*/
	17
	18	#include "includes.h"
	19
	20	#include <sys/types.h>
	21	#ifdef HAVE_SYS_STAT_H
	22	# include <sys/stat.h>
	23	#endif
	24
	25	#include <dirent.h>
	26	#include <string.h>
	27
	28	#include "xmalloc.h"
	29	#include "sftp.h"
	30	#include "buffer.h"
	31	#include "sftp-common.h"
	32	#include "sftp-client.h"
	33
	34	int remote_glob(struct sftp_conn , const char , int,
	35	int ()(const char , int), glob_t *);
	36
	37	struct SFTP_OPENDIR {
	38	SFTP_DIRENT **dir;
	39	int offset;
	40	};
	41
	42	static struct {
	43	struct sftp_conn *conn;
	44	} cur;
	45
	46	static void *
	47	fudge_opendir(const char *path)
	48	{
	49	struct SFTP_OPENDIR *r;
	50
	51	r = xmalloc(sizeof(*r));
	52
	53	if (do_readdir(cur.conn, (char *)path, &r->dir)) {
	54	xfree(r);
	55	return(NULL);
	56	}
	57
	58	r->offset = 0;
	59
	60	return((void *)r);
	61	}
	62
	63	static struct dirent *
	64	fudge_readdir(struct SFTP_OPENDIR *od)
	65	{
	66	/* Solaris needs sizeof(dirent) + path length (see below) */
	67	static char buf[sizeof(struct dirent) + MAXPATHLEN];
	68	struct dirent ret = (struct dirent )buf;
	69	#ifdef __GNU_LIBRARY__
	70	static int inum = 1;
	71	#endif /* __GNU_LIBRARY__ */
	72
	73	if (od->dir[od->offset] == NULL)
	74	return(NULL);
	75
	76	memset(buf, 0, sizeof(buf));
	77
	78	/*
	79	* Solaris defines dirent->d_name as a one byte array and expects
	80	* you to hack around it.
	81	*/
	82	#ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME
	83	strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN);
	84	#else
	85	strlcpy(ret->d_name, od->dir[od->offset++]->filename,
	86	sizeof(ret->d_name));
	87	#endif
	88	#ifdef __GNU_LIBRARY__
	89	/*
	90	* Idiot glibc uses extensions to struct dirent for readdir with
	91	* ALTDIRFUNCs. Not that this is documented anywhere but the
	92	* source... Fake an inode number to appease it.
	93	*/
	94	ret->d_ino = inum++;
	95	if (!inum)
	96	inum = 1;
	97	#endif /* __GNU_LIBRARY__ */
	98
	99	return(ret);
	100	}
	101
	102	static void
	103	fudge_closedir(struct SFTP_OPENDIR *od)
	104	{
	105	free_sftp_dirents(od->dir);
	106	xfree(od);
	107	}
	108
	109	static int
	110	fudge_lstat(const char path, struct stat st)
	111	{
	112	Attrib *a;
	113
	114	if (!(a = do_lstat(cur.conn, (char *)path, 0)))
	115	return(-1);
	116
	117	attrib_to_stat(a, st);
	118
	119	return(0);
	120	}
	121
	122	static int
	123	fudge_stat(const char path, struct stat st)
	124	{
	125	Attrib *a;
	126
	127	if (!(a = do_stat(cur.conn, (char *)path, 0)))
	128	return(-1);
	129
	130	attrib_to_stat(a, st);
	131
	132	return(0);
	133	}
	134
	135	int
	136	remote_glob(struct sftp_conn conn, const char pattern, int flags,
	137	int (errfunc)(const char , int), glob_t *pglob)
	138	{
	139	pglob->gl_opendir = fudge_opendir;
	140	pglob->gl_readdir = (struct dirent ()(void *))fudge_readdir;
	141	pglob->gl_closedir = (void ()(void ))fudge_closedir;
	142	pglob->gl_lstat = fudge_lstat;
	143	pglob->gl_stat = fudge_stat;
	144
	145	memset(&cur, 0, sizeof(cur));
	146	cur.conn = conn;
	147
	148	return(glob(pattern, flags \| GLOB_ALTDIRFUNC, errfunc, pglob));
	149	}