+/* File tree traversal functions.
+ Copyright (C) 1994-2022 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
/*-
* Copyright (c) 1990, 1993, 1994
* The Regents of the University of California. All rights reserved.
#include <dirent.h>
#include <errno.h>
#include <fts.h>
+#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#endif
/* Align P to that size. */
#ifndef ALIGN
-#define ALIGN(p) (((unsigned long int) (p) + ALIGNBYTES) & ~ALIGNBYTES)
+#define ALIGN(p) (((uintptr_t) (p) + ALIGNBYTES) & ~ALIGNBYTES)
#endif
-static FTSENT *fts_alloc (FTS *, const char *, size_t) internal_function;
-static FTSENT *fts_build (FTS *, int) internal_function;
-static void fts_lfree (FTSENT *) internal_function;
-static void fts_load (FTS *, FTSENT *) internal_function;
-static size_t fts_maxarglen (char * const *) internal_function;
-static void fts_padjust (FTS *, FTSENT *) internal_function;
-static int fts_palloc (FTS *, size_t) internal_function;
-static FTSENT *fts_sort (FTS *, FTSENT *, int) internal_function;
-static u_short fts_stat (FTS *, FTSENT *, int) internal_function;
-static int fts_safe_changedir (FTS *, FTSENT *, int, const char *)
- internal_function;
+/* Support for the LFS API version. */
+#ifndef FTS_OPEN
+#define FTS_OPEN fts_open
+#define FTS_CLOSE fts_close
+#define FTS_READ fts_read
+#define FTS_SET fts_set
+#define FTS_CHILDREN fts_children
+# define FTSOBJ FTS
+# define FTSENTRY FTSENT
+# define INO_T ino_t
+# define STRUCT_STAT stat
+# define STAT __stat
+# define LSTAT __lstat
+#endif
+
+static FTSENTRY *fts_alloc (FTSOBJ *, const char *, size_t);
+static FTSENTRY *fts_build (FTSOBJ *, int);
+static void fts_lfree (FTSENTRY *);
+static void fts_load (FTSOBJ *, FTSENTRY *);
+static size_t fts_maxarglen (char * const *);
+static void fts_padjust (FTSOBJ *, FTSENTRY *);
+static int fts_palloc (FTSOBJ *, size_t);
+static FTSENTRY *fts_sort (FTSOBJ *, FTSENTRY *, int);
+static u_short fts_stat (FTSOBJ *, FTSENTRY *, int);
+static int fts_safe_changedir (FTSOBJ *, FTSENTRY *, int, const char *);
#ifndef MAX
#define MAX(a, b) ({ __typeof__ (a) _a = (a); \
#define BNAMES 2 /* fts_children, names only */
#define BREAD 3 /* fts_read */
-FTS *
-fts_open(argv, options, compar)
- char * const *argv;
- register int options;
- int (*compar) (const FTSENT **, const FTSENT **);
+FTSOBJ *
+FTS_OPEN (char * const *argv, int options,
+ int (*compar) (const FTSENTRY **, const FTSENTRY **))
{
- register FTS *sp;
- register FTSENT *p, *root;
- register int nitems;
- FTSENT *parent = NULL;
- FTSENT *tmp;
+ FTSOBJ *sp;
+ FTSENTRY *p, *root;
+ int nitems;
+ FTSENTRY *parent = NULL;
+ FTSENTRY *tmp;
/* Options check. */
if (options & ~FTS_OPTIONMASK) {
}
/* Allocate/initialize the stream */
- if ((sp = malloc((u_int)sizeof(FTS))) == NULL)
+ if ((sp = malloc((u_int)sizeof(FTSOBJ))) == NULL)
return (NULL);
- memset(sp, 0, sizeof(FTS));
+ memset(sp, 0, sizeof(FTSOBJ));
sp->fts_compar = (int (*) (const void *, const void *)) compar;
sp->fts_options = options;
}
static void
-internal_function
-fts_load(sp, p)
- FTS *sp;
- register FTSENT *p;
+fts_load (FTSOBJ *sp, FTSENTRY *p)
{
- register int len;
- register char *cp;
+ int len;
+ char *cp;
/*
* Load the stream structure for the next traversal. Since we don't
}
int
-fts_close(sp)
- FTS *sp;
+FTS_CLOSE (FTSOBJ *sp)
{
- register FTSENT *freep, *p;
+ FTSENTRY *freep, *p;
int saved_errno;
/*
(p->fts_path[p->fts_pathlen - 1] == '/' \
? p->fts_pathlen - 1 : p->fts_pathlen)
-FTSENT *
-fts_read(sp)
- register FTS *sp;
+FTSENTRY *
+FTS_READ (FTSOBJ *sp)
{
- register FTSENT *p, *tmp;
- register int instr;
- register char *t;
+ FTSENTRY *p, *tmp;
+ int instr;
+ char *t;
int saved_errno;
/* If finished or unrecoverable error, return NULL. */
*/
/* ARGSUSED */
int
-fts_set(sp, p, instr)
- FTS *sp;
- FTSENT *p;
- int instr;
+FTS_SET (FTSOBJ *sp, FTSENTRY *p, int instr)
{
if (instr != 0 && instr != FTS_AGAIN && instr != FTS_FOLLOW &&
instr != FTS_NOINSTR && instr != FTS_SKIP) {
return (0);
}
-FTSENT *
-fts_children(sp, instr)
- register FTS *sp;
- int instr;
+FTSENTRY *
+FTS_CHILDREN(FTSOBJ *sp, int instr)
{
- register FTSENT *p;
+ FTSENTRY *p;
int fd;
if (instr != 0 && instr != FTS_NAMEONLY) {
return (sp->fts_child);
}
+static inline int
+dirent_not_directory(const struct dirent *dp)
+{
+#if defined DT_DIR && defined _DIRENT_HAVE_D_TYPE
+ return dp->d_type != DT_DIR && dp->d_type != DT_UNKNOWN;
+#else
+ return 0;
+#endif
+}
+
/*
* This is the tricky part -- do not casually change *anything* in here. The
* idea is to build the linked list of entries that are used by fts_children
* directories and for any files after the subdirectories in the directory have
* been found, cutting the stat calls by about 2/3.
*/
-static FTSENT *
-internal_function
-fts_build(sp, type)
- register FTS *sp;
- int type;
+static FTSENTRY *
+fts_build (FTSOBJ *sp, int type)
{
- register struct dirent *dp;
- register FTSENT *p, *head;
- register int nitems;
- FTSENT *cur, *tail;
+ struct dirent *dp;
+ FTSENTRY *p, *head;
+ int nitems;
+ FTSENTRY *cur, *tail;
DIR *dirp;
void *oldaddr;
int cderrno, descend, len, level, nlinks, saved_errno,
p->fts_info = FTS_NSOK;
p->fts_accpath = cur->fts_accpath;
} else if (nlinks == 0
-#if defined DT_DIR && defined _DIRENT_HAVE_D_TYPE
- || (nostat &&
- dp->d_type != DT_DIR && dp->d_type != DT_UNKNOWN)
-#endif
- ) {
+ || (nostat && dirent_not_directory(dp))) {
p->fts_accpath =
ISSET(FTS_NOCHDIR) ? p->fts_path : p->fts_name;
p->fts_info = FTS_NSOK;
}
static u_short
-internal_function
-fts_stat(sp, p, follow)
- FTS *sp;
- register FTSENT *p;
- int follow;
+fts_stat (FTSOBJ *sp, FTSENTRY *p, int follow)
{
- register FTSENT *t;
- register dev_t dev;
- register ino_t ino;
- struct stat *sbp, sb;
+ FTSENTRY *t;
+ dev_t dev;
+ INO_T ino;
+ struct STRUCT_STAT *sbp, sb;
int saved_errno;
/* If user needs stat info, stat buffer already allocated. */
* fail, set the errno from the stat call.
*/
if (ISSET(FTS_LOGICAL) || follow) {
- if (stat(p->fts_accpath, sbp)) {
+ if (STAT(p->fts_accpath, sbp)) {
saved_errno = errno;
- if (!lstat(p->fts_accpath, sbp)) {
+ if (!LSTAT(p->fts_accpath, sbp)) {
__set_errno (0);
return (FTS_SLNONE);
}
p->fts_errno = saved_errno;
goto err;
}
- } else if (lstat(p->fts_accpath, sbp)) {
+ } else if (LSTAT(p->fts_accpath, sbp)) {
p->fts_errno = errno;
-err: memset(sbp, 0, sizeof(struct stat));
+err: memset(sbp, 0, sizeof(struct STRUCT_STAT));
return (FTS_NS);
}
return (FTS_DEFAULT);
}
-static FTSENT *
-internal_function
-fts_sort(sp, head, nitems)
- FTS *sp;
- FTSENT *head;
- register int nitems;
+static FTSENTRY *
+fts_sort (FTSOBJ *sp, FTSENTRY *head, int nitems)
{
- register FTSENT **ap, *p;
+ FTSENTRY **ap, *p;
/*
* Construct an array of pointers to the structures and call qsort(3).
* 40 so don't realloc one entry at a time.
*/
if (nitems > sp->fts_nitems) {
- struct _ftsent **a;
+ FTSENTRY **a;
sp->fts_nitems = nitems + 40;
if ((a = realloc(sp->fts_array,
- (size_t)(sp->fts_nitems * sizeof(FTSENT *)))) == NULL) {
+ (size_t)(sp->fts_nitems * sizeof(FTSENTRY *)))) == NULL) {
free(sp->fts_array);
sp->fts_array = NULL;
sp->fts_nitems = 0;
}
for (ap = sp->fts_array, p = head; p; p = p->fts_link)
*ap++ = p;
- qsort((void *)sp->fts_array, nitems, sizeof(FTSENT *), sp->fts_compar);
+ qsort((void *)sp->fts_array, nitems, sizeof(FTSENTRY *), sp->fts_compar);
for (head = *(ap = sp->fts_array); --nitems; ++ap)
ap[0]->fts_link = ap[1];
ap[0]->fts_link = NULL;
return (head);
}
-static FTSENT *
-internal_function
-fts_alloc(sp, name, namelen)
- FTS *sp;
- const char *name;
- size_t namelen;
+static FTSENTRY *
+fts_alloc (FTSOBJ *sp, const char *name, size_t namelen)
{
- register FTSENT *p;
+ FTSENTRY *p;
size_t len;
/*
* fts_name field is declared to be of size 1, the fts_name pointer is
* namelen + 2 before the first possible address of the stat structure.
*/
- len = sizeof(FTSENT) + namelen;
+ len = sizeof(FTSENTRY) + namelen;
if (!ISSET(FTS_NOSTAT))
- len += sizeof(struct stat) + ALIGNBYTES;
+ len += sizeof(struct STRUCT_STAT) + ALIGNBYTES;
if ((p = malloc(len)) == NULL)
return (NULL);
p->fts_name[namelen] = '\0';
if (!ISSET(FTS_NOSTAT))
- p->fts_statp = (struct stat *)ALIGN(p->fts_name + namelen + 2);
+ p->fts_statp = (struct STRUCT_STAT *)ALIGN(p->fts_name + namelen + 2);
p->fts_namelen = namelen;
p->fts_path = sp->fts_path;
p->fts_errno = 0;
}
static void
-internal_function
-fts_lfree(head)
- register FTSENT *head;
+fts_lfree (FTSENTRY *head)
{
- register FTSENT *p;
+ FTSENTRY *p;
/* Free a linked list of structures. */
while ((p = head)) {
* plus 256 bytes so don't realloc the path 2 bytes at a time.
*/
static int
-internal_function
-fts_palloc(sp, more)
- FTS *sp;
- size_t more;
+fts_palloc (FTSOBJ *sp, size_t more)
{
char *p;
* already returned.
*/
static void
-internal_function
-fts_padjust(sp, head)
- FTS *sp;
- FTSENT *head;
+fts_padjust (FTSOBJ *sp, FTSENTRY *head)
{
- FTSENT *p;
+ FTSENTRY *p;
char *addr = sp->fts_path;
#define ADJUST(p) do { \
}
static size_t
-internal_function
-fts_maxarglen(argv)
- char * const *argv;
+fts_maxarglen (char * const *argv)
{
size_t len, max;
* Assumes p->fts_dev and p->fts_ino are filled in.
*/
static int
-internal_function
-fts_safe_changedir(sp, p, fd, path)
- FTS *sp;
- FTSENT *p;
- int fd;
- const char *path;
+fts_safe_changedir (FTSOBJ *sp, FTSENTRY *p, int fd, const char *path)
{
int ret, oerrno, newfd;
struct stat64 sb;
return (0);
if (fd < 0 && (newfd = __open(path, O_RDONLY, 0)) < 0)
return (-1);
- if (__fxstat64(_STAT_VER, newfd, &sb)) {
+ if (__fstat64(newfd, &sb)) {
ret = -1;
goto bail;
}
git://sourceware.org / glibc.git / blobdiff