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am 4e9d953a: Merge "libc: add ftw / nftw functions"

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* commit '4e9d953a0e9334c0f3519f470b97973c31da5bb6':
  libc: add ftw / nftw functions
This commit is contained in:
Elliott Hughes 2012-09-13 17:09:51 -07:00 committed by Android Git Automerger
commit 66a97ea9fb
5 changed files with 296 additions and 0 deletions
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2
libc/Android.mk
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@ -331,6 +331,8 @@ libc_common_src_files := \
libc_upstream_netbsd_src_files := \
upstream-netbsd/libc/compat-43/creat.c \
upstream-netbsd/libc/gen/ftw.c \
upstream-netbsd/libc/gen/nftw.c \
upstream-netbsd/libc/gen/nice.c \
upstream-netbsd/libc/gen/psignal.c \
upstream-netbsd/libc/regex/regcomp.c \

20
libc/NOTICE
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@ -3421,6 +3421,26 @@ SUCH DAMAGE.
-------------------------------------------------------------------
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.
-------------------------------------------------------------------
Copyright (c) 2004 The NetBSD Foundation, Inc.
All rights reserved.

62
libc/include/ftw.h Normal file
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@ -0,0 +1,62 @@
/* $NetBSD: ftw.h,v 1.1 2005/12/30 23:07:33 agc Exp $ */
/* From OpenBSD: ftw.h,v 1.1 2003/07/21 21:13:18 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.
*/
#ifndef _FTW_H
#define _FTW_H
#include <sys/types.h>
#include <sys/stat.h>
/*
* Valid flags for the 3rd argument to the function that is passed as the
* second argument to ftw(3) and nftw(3). Say it three times fast!
*/
#define FTW_F 0 /* File. */
#define FTW_D 1 /* Directory. */
#define FTW_DNR 2 /* Directory without read permission. */
#define FTW_DP 3 /* Directory with subdirectories visited. */
#define FTW_NS 4 /* Unknown type; stat() failed. */
#define FTW_SL 5 /* Symbolic link. */
#define FTW_SLN 6 /* Sym link that names a nonexistent file. */
/*
* Flags for use as the 4th argument to nftw(3). These may be ORed together.
*/
#define FTW_PHYS 0x01 /* Physical walk, don't follow sym links. */
#define FTW_MOUNT 0x02 /* The walk does not cross a mount point. */
#define FTW_DEPTH 0x04 /* Subdirs visited before the dir itself. */
#define FTW_CHDIR 0x08 /* Change to a directory before reading it. */
struct FTW {
int base;
int level;
};
__BEGIN_DECLS
int ftw(const char *, int (*)(const char *, const struct stat *, int), int);
int nftw(const char *, int (*)(const char *, const struct stat *, int,
struct FTW *), int, int);
__END_DECLS
#endif /* !_FTW_H */

98
libc/upstream-netbsd/libc/gen/ftw.c Normal file
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@ -0,0 +1,98 @@
/* $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);
}

114
libc/upstream-netbsd/libc/gen/nftw.c Normal file
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@ -0,0 +1,114 @@
/* $NetBSD */
/* From OpenBSD: nftw.c,v 1.2 2003/07/21 21:15:32 millert Exp */
/*
* Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: nftw.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
nftw(const char *path, int (*fn)(const char *, const struct stat *, int,
struct FTW *), int nfds, int ftwflags)
{
/* LINTED */
char * const paths[2] = { __UNCONST(path), NULL };
struct FTW f;
FTSENT *cur;
FTS *ftsp;
int ftsflags, fnflag, error, 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;
postorder = (ftwflags & FTW_DEPTH) != 0;
ftsp = fts_open(paths, ftsflags, NULL);
if (ftsp == NULL)
return (-1);
error = 0;
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;
}
f.base = cur->fts_pathlen - cur->fts_namelen;
f.level = cur->fts_level;
error = fn(cur->fts_path, cur->fts_statp, fnflag, &f);
if (error != 0)
break;
}
done:
sverrno = errno;
(void) fts_close(ftsp);
errno = sverrno;
return (error);
}