118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
|
/* $OpenBSD: nftw.c,v 1.4 2004/07/07 16:05:23 millert Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2003, 2004 Todd C. Miller <Todd.Miller@courtesan.com>
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* Sponsored in part by the Defense Advanced Research Projects
|
||
|
|
* Agency (DARPA) and Air Force Research Laboratory, Air Force
|
||
|
|
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
||
|
|
static const char rcsid[] = "$OpenBSD: nftw.c,v 1.4 2004/07/07 16:05:23 millert Exp $";
|
||
|
|
#endif /* LIBC_SCCS and not lint */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
__FBSDID("$FreeBSD$");
|
||
|
|
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <fts.h>
|
||
|
|
#include <ftw.h>
|
||
|
|
#include <limits.h>
|
||
|
|
|
||
|
|
int
|
||
|
|
nftw(const char *path, int (*fn)(const char *, const struct stat *, int,
|
||
|
|
struct FTW *), int nfds, int ftwflags)
|
||
|
|
{
|
||
|
|
char * const paths[2] = { (char *)path, NULL };
|
||
|
|
struct FTW ftw;
|
||
|
|
FTSENT *cur;
|
||
|
|
FTS *ftsp;
|
||
|
|
int error = 0, ftsflags, fnflag, postorder, sverrno;
|
||
|
|
|
||
|
|
/* XXX - nfds is currently unused */
|
||
|
|
if (nfds < 1 || nfds > OPEN_MAX) {
|
||
|
|
errno = EINVAL;
|
||
|
|
return (-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
ftsflags = FTS_COMFOLLOW;
|
||
|
|
if (!(ftwflags & FTW_CHDIR))
|
||
|
|
ftsflags |= FTS_NOCHDIR;
|
||
|
|
if (ftwflags & FTW_MOUNT)
|
||
|
|
ftsflags |= FTS_XDEV;
|
||
|
|
if (ftwflags & FTW_PHYS)
|
||
|
|
ftsflags |= FTS_PHYSICAL;
|
||
|
|
else
|
||
|
|
ftsflags |= FTS_LOGICAL;
|
||
|
|
postorder = (ftwflags & FTW_DEPTH) != 0;
|
||
|
|
ftsp = fts_open(paths, ftsflags, NULL);
|
||
|
|
if (ftsp == NULL)
|
||
|
|
return (-1);
|
||
|
|
while ((cur = fts_read(ftsp)) != NULL) {
|
||
|
|
switch (cur->fts_info) {
|
||
|
|
case FTS_D:
|
||
|
|
if (postorder)
|
||
|
|
continue;
|
||
|
|
fnflag = FTW_D;
|
||
|
|
break;
|
||
|
|
case FTS_DNR:
|
||
|
|
fnflag = FTW_DNR;
|
||
|
|
break;
|
||
|
|
case FTS_DP:
|
||
|
|
if (!postorder)
|
||
|
|
continue;
|
||
|
|
fnflag = FTW_DP;
|
||
|
|
break;
|
||
|
|
case FTS_F:
|
||
|
|
case FTS_DEFAULT:
|
||
|
|
fnflag = FTW_F;
|
||
|
|
break;
|
||
|
|
case FTS_NS:
|
||
|
|
case FTS_NSOK:
|
||
|
|
fnflag = FTW_NS;
|
||
|
|
break;
|
||
|
|
case FTS_SL:
|
||
|
|
fnflag = FTW_SL;
|
||
|
|
break;
|
||
|
|
case FTS_SLNONE:
|
||
|
|
fnflag = FTW_SLN;
|
||
|
|
break;
|
||
|
|
case FTS_DC:
|
||
|
|
errno = ELOOP;
|
||
|
|
/* FALLTHROUGH */
|
||
|
|
default:
|
||
|
|
error = -1;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
ftw.base = cur->fts_pathlen - cur->fts_namelen;
|
||
|
|
ftw.level = cur->fts_level;
|
||
|
|
error = fn(cur->fts_path, cur->fts_statp, fnflag, &ftw);
|
||
|
|
if (error != 0)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
done:
|
||
|
|
sverrno = errno;
|
||
|
|
if (fts_close(ftsp) != 0 && error == 0)
|
||
|
|
error = -1;
|
||
|
|
else
|
||
|
|
errno = sverrno;
|
||
|
|
return (error);
|
||
|
|
}
|