minix/lib/libc/gen/ftw.c
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00

98 lines
2.4 KiB
C

/* $NetBSD: ftw.c,v 1.1 2005/12/30 23:07:32 agc Exp $ */
/* From OpenBSD: ftw.c,v 1.2 2003/07/21 21:15:32 millert Exp */
/*
* Copyright (c) 2003 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: ftw.c,v 1.1 2005/12/30 23:07:32 agc Exp $");
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fts.h>
#include <ftw.h>
#include <limits.h>
int
ftw(const char *path, int (*fn)(const char *, const struct stat *, int),
int nfds)
{
/* LINTED */
char * const paths[2] = { __UNCONST(path), NULL };
FTSENT *cur;
FTS *ftsp;
int fnflag, error, sverrno;
/* XXX - nfds is currently unused */
if (nfds < 1 || nfds > OPEN_MAX) {
errno = EINVAL;
return (-1);
}
ftsp = fts_open(paths, FTS_COMFOLLOW | FTS_NOCHDIR, NULL);
if (ftsp == NULL)
return (-1);
error = 0;
while ((cur = fts_read(ftsp)) != NULL) {
switch (cur->fts_info) {
case FTS_D:
fnflag = FTW_D;
break;
case FTS_DNR:
fnflag = FTW_DNR;
break;
case FTS_DP:
/* we only visit in preorder */
continue;
case FTS_F:
case FTS_DEFAULT:
fnflag = FTW_F;
break;
case FTS_NS:
case FTS_NSOK:
case FTS_SLNONE:
fnflag = FTW_NS;
break;
case FTS_SL:
fnflag = FTW_SL;
break;
case FTS_DC:
errno = ELOOP;
/* FALLTHROUGH */
default:
error = -1;
goto done;
}
error = fn(cur->fts_path, cur->fts_statp, fnflag);
if (error != 0)
break;
}
done:
sverrno = errno;
if (fts_close(ftsp) != 0 && error == 0)
error = -1;
else
errno = sverrno;
return (error);
}