2008-03-09 21:35:38 +00:00
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/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <common.h>
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#include <errno.h>
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#include <fs.h>
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#include <linux/stat.h>
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#include <malloc.h>
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#include <xfuncs.h>
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#include <fnmatch.h>
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2012-05-13 13:03:08 +00:00
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#include <qsort.h>
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2008-03-09 21:35:38 +00:00
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#define _GNU_SOURCE
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#include <glob.h>
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#ifdef CONFIG_GLOB
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extern __ptr_t(*__glob_opendir_hook) __P((const char *directory));
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extern void (*__glob_closedir_hook) __P((__ptr_t stream));
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extern const char *(*__glob_readdir_hook) __P((__ptr_t stream));
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static int glob_in_dir __P((const char *pattern, const char *directory,
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int flags,
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int (*errfunc) __P((const char *, int)),
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glob_t * pglob));
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static int prefix_array __P((const char *prefix, char **array, size_t n,
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int add_slash));
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#ifdef __GLOB64
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extern int glob_pattern_p(const char *pattern, int quote);
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#else
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/* Return nonzero if PATTERN contains any metacharacters.
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Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
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int glob_pattern_p(const char *pattern, int quote)
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{
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const char *p;
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int open = 0;
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for (p = pattern; *p != '\0'; ++p)
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switch (*p) {
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case '?':
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case '*':
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return 1;
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case '\\':
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if (quote && p[1] != '\0')
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++p;
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break;
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case '[':
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open = 1;
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break;
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case ']':
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if (open)
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return 1;
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break;
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}
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return 0;
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}
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#endif
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#ifdef CONFIG_GLOB_SORT
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/* Do a collated comparison of A and B. */
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2012-05-13 13:03:08 +00:00
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static int collated_compare(const void *a, const void *b)
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2008-03-09 21:35:38 +00:00
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{
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2012-08-03 06:29:35 +00:00
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const char *const s1 = *(const char *const *)a;
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const char *const s2 = *(const char *const *)b;
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2008-03-09 21:35:38 +00:00
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if (s1 == s2)
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return 0;
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if (s1 == NULL)
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return 1;
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if (s2 == NULL)
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return -1;
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return strcmp(s1, s2);
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}
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#endif
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/* Do glob searching for PATTERN, placing results in PGLOB.
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The bits defined above may be set in FLAGS.
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If a directory cannot be opened or read and ERRFUNC is not nil,
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it is called with the pathname that caused the error, and the
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`errno' value from the failing call; if it returns non-zero
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`glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
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If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
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Otherwise, `glob' returns zero. */
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2010-10-15 06:22:22 +00:00
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int glob(const char *pattern, int flags,
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int (*errfunc) __P((const char *, int)), glob_t *pglob)
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2008-03-09 21:35:38 +00:00
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{
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const char *filename;
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char *dirname = NULL;
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size_t dirlen;
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int status;
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int oldcount;
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if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0) {
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errno = EINVAL;
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return -1;
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}
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/* Find the filename. */
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filename = strrchr(pattern, '/');
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if (filename == NULL) {
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filename = pattern;
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dirname = strdup(".");
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dirlen = 0;
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} else if (filename == pattern) {
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/* "/pattern". */
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dirname = strdup("/");
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dirlen = 1;
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++filename;
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} else {
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dirlen = filename - pattern;
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dirname = (char *)xmalloc(dirlen + 1);
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memcpy(dirname, pattern, dirlen);
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dirname[dirlen] = '\0';
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++filename;
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}
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if (filename[0] == '\0' && dirlen > 1) {
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/* "pattern/". Expand "pattern", appending slashes. */
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int val = glob(dirname, flags | GLOB_MARK, errfunc, pglob);
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if (val == 0)
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pglob->gl_flags =
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(pglob->
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gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK);
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status = val;
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goto out;
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}
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if (!(flags & GLOB_APPEND)) {
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pglob->gl_pathc = 0;
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pglob->gl_pathv = NULL;
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}
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oldcount = pglob->gl_pathc;
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if (glob_pattern_p(dirname, !(flags & GLOB_NOESCAPE))) {
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/* The directory name contains metacharacters, so we
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have to glob for the directory, and then glob for
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the pattern in each directory found. */
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glob_t dirs;
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register int i;
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status = glob(dirname,
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((flags &
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(GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE)) |
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GLOB_NOSORT), errfunc, &dirs);
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if (status != 0)
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goto out;
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/* We have successfully globbed the preceding directory name.
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For each name we found, call glob_in_dir on it and FILENAME,
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appending the results to PGLOB. */
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for (i = 0; i < dirs.gl_pathc; ++i) {
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2010-10-15 06:22:22 +00:00
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int oldcount1;
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2008-03-09 21:35:38 +00:00
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#ifdef SHELL
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{
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/* Make globbing interruptible in the bash shell. */
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extern int interrupt_state;
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if (interrupt_state) {
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globfree(&dirs);
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globfree(&files);
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status = GLOB_ABEND goto out;
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}
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}
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#endif /* SHELL. */
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2010-10-15 06:22:22 +00:00
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oldcount1 = pglob->gl_pathc;
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2008-03-09 21:35:38 +00:00
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status = glob_in_dir(filename, dirs.gl_pathv[i],
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(flags | GLOB_APPEND) &
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~GLOB_NOCHECK, errfunc, pglob);
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if (status == GLOB_NOMATCH) {
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/* No matches in this directory. Try the next. */
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continue;
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}
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if (status != 0) {
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globfree(pglob);
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goto out;
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}
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/* Stick the directory on the front of each name. */
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prefix_array(dirs.gl_pathv[i],
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2010-10-15 06:22:22 +00:00
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&pglob->gl_pathv[oldcount1],
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pglob->gl_pathc - oldcount1,
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2008-03-09 21:35:38 +00:00
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flags & GLOB_MARK);
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}
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globfree(&dirs);
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flags |= GLOB_MAGCHAR;
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if (pglob->gl_pathc == oldcount) {
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/* No matches. */
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2012-04-29 11:55:37 +00:00
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2008-03-09 21:35:38 +00:00
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if (flags & GLOB_NOCHECK) {
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size_t len = strlen(pattern) + 1;
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char *patcopy = (char *)xmalloc(len);
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memcpy(patcopy, pattern, len);
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pglob->gl_pathv
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= (char **)xrealloc(pglob->gl_pathv,
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(pglob->gl_pathc +
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((flags & GLOB_DOOFFS) ?
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pglob->gl_offs : 0) +
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1 + 1) *
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sizeof(char *));
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if (flags & GLOB_DOOFFS)
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while (pglob->gl_pathc < pglob->gl_offs)
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pglob->gl_pathv[pglob->
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gl_pathc++] =
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NULL;
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pglob->gl_pathv[pglob->gl_pathc++] = patcopy;
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pglob->gl_pathv[pglob->gl_pathc] = NULL;
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pglob->gl_flags = flags;
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2012-04-29 11:55:37 +00:00
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} else {
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2008-03-09 21:35:38 +00:00
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status = GLOB_NOMATCH;
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goto out;
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}
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}
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} else {
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status = glob_in_dir(filename, dirname, flags, errfunc, pglob);
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if (status != 0)
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goto out;
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if (dirlen > 0) {
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/* Stick the directory on the front of each name. */
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prefix_array(dirname,
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&pglob->gl_pathv[oldcount],
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pglob->gl_pathc - oldcount,
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flags & GLOB_MARK);
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}
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}
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if (flags & GLOB_MARK) {
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/* Append slashes to directory names. glob_in_dir has already
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allocated the extra character for us. */
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int i;
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struct stat st;
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for (i = oldcount; i < pglob->gl_pathc; ++i)
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if (stat(pglob->gl_pathv[i], &st) == 0 &&
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S_ISDIR(st.st_mode))
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strcat(pglob->gl_pathv[i], "/");
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}
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#ifdef CONFIG_GLOB_SORT
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if (!(flags & GLOB_NOSORT))
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/* Sort the vector. */
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qsort((__ptr_t) & pglob->gl_pathv[oldcount],
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pglob->gl_pathc - oldcount,
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2012-05-13 13:03:08 +00:00
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sizeof(char *), collated_compare);
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2008-03-09 21:35:38 +00:00
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#endif
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status = 0;
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out:
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free(dirname);
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return status;
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}
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/* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
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elements in place. Return nonzero if out of memory, zero if successful.
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A slash is inserted between DIRNAME and each elt of ARRAY,
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unless DIRNAME is just "/". Each old element of ARRAY is freed.
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If ADD_SLASH is non-zero, allocate one character more than
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necessary, so that a slash can be appended later. */
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2010-10-15 06:22:22 +00:00
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static int prefix_array(const char *dirname, char **array, size_t n,
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int add_slash)
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2008-03-09 21:35:38 +00:00
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{
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register size_t i;
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size_t dirlen = strlen(dirname);
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if (dirlen == 1 && dirname[0] == '/')
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/* DIRNAME is just "/", so normal prepending would get us "//foo".
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We want "/foo" instead, so don't prepend any chars from DIRNAME. */
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dirlen = 0;
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for (i = 0; i < n; ++i) {
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size_t eltlen = strlen(array[i]) + 1;
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char *new =
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(char *)xmalloc(dirlen + 1 + eltlen + (add_slash ? 1 : 0));
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memcpy(new, dirname, dirlen);
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new[dirlen] = '/';
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memcpy(&new[dirlen + 1], array[i], eltlen);
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free((__ptr_t) array[i]);
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array[i] = new;
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}
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return 0;
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}
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/* Like `glob', but PATTERN is a final pathname component,
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and matches are searched for in DIRECTORY.
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The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
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The GLOB_APPEND flag is assumed to be set (always appends). */
|
2010-10-15 06:22:22 +00:00
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static int glob_in_dir(const char *pattern, const char *directory,
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int flags, int (*errfunc) __P((const char *, int)), glob_t *pglob)
|
2008-03-09 21:35:38 +00:00
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{
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__ptr_t stream;
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struct globlink {
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struct globlink *next;
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char *name;
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};
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struct globlink *names = NULL;
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size_t nfound = 0;
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int meta;
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stream = opendir(directory);
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if (stream == NULL) {
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if ((errfunc != NULL && (*errfunc) (directory, errno)) ||
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(flags & GLOB_ERR))
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return GLOB_ABORTED;
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}
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meta = glob_pattern_p(pattern, !(flags & GLOB_NOESCAPE));
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if (meta)
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flags |= GLOB_MAGCHAR;
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while (1) {
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const char *name;
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size_t len;
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struct dirent *d = readdir((DIR *) stream);
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if (d == NULL)
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break;
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// if (! (d->d_ino != 0))
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// continue;
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name = d->d_name;
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if ((!meta && strcmp(pattern, name) == 0)
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|| fnmatch(pattern, name,
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(!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) |
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((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)) == 0) {
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struct globlink *new =
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(struct globlink *)xmalloc(sizeof(struct globlink));
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len = strlen(name);
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new->name = xmalloc(len + ((flags & GLOB_MARK) ? 1 : 0) + 1);
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memcpy((__ptr_t) new->name, name, len);
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new->name[len] = '\0';
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new->next = names;
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|
|
names = new;
|
|
|
|
++nfound;
|
|
|
|
if (!meta)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2012-04-29 11:55:37 +00:00
|
|
|
|
2008-03-09 21:35:38 +00:00
|
|
|
if (nfound == 0 && (flags & GLOB_NOCHECK)) {
|
|
|
|
size_t len = strlen(pattern);
|
|
|
|
nfound = 1;
|
|
|
|
names = (struct globlink *)xmalloc(sizeof(struct globlink));
|
|
|
|
names->next = NULL;
|
|
|
|
names->name =
|
|
|
|
(char *)xmalloc(len + (flags & GLOB_MARK ? 1 : 0) + 1);
|
|
|
|
memcpy(names->name, pattern, len);
|
|
|
|
names->name[len] = '\0';
|
|
|
|
}
|
2012-04-29 11:55:37 +00:00
|
|
|
|
2008-03-09 21:35:38 +00:00
|
|
|
pglob->gl_pathv
|
|
|
|
= (char **)xrealloc(pglob->gl_pathv,
|
|
|
|
(pglob->gl_pathc +
|
|
|
|
((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) +
|
|
|
|
nfound + 1) * sizeof(char *));
|
|
|
|
|
|
|
|
if (flags & GLOB_DOOFFS)
|
|
|
|
while (pglob->gl_pathc < pglob->gl_offs)
|
|
|
|
pglob->gl_pathv[pglob->gl_pathc++] = NULL;
|
|
|
|
|
|
|
|
while (names) {
|
|
|
|
struct globlink *tmp;
|
|
|
|
|
|
|
|
pglob->gl_pathv[pglob->gl_pathc++] = names->name;
|
|
|
|
tmp = names;
|
|
|
|
names = names->next;
|
|
|
|
free(tmp);
|
|
|
|
}
|
|
|
|
pglob->gl_pathv[pglob->gl_pathc] = NULL;
|
|
|
|
|
|
|
|
pglob->gl_flags = flags;
|
|
|
|
|
|
|
|
{
|
|
|
|
int save = errno;
|
|
|
|
(void)closedir((DIR *) stream);
|
|
|
|
errno = save;
|
|
|
|
}
|
|
|
|
return nfound == 0 ? GLOB_NOMATCH : 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_GLOB */
|
|
|
|
|
|
|
|
#ifdef CONFIG_FAKE_GLOB
|
|
|
|
/* Fake version of glob. We simply put the input string into
|
|
|
|
* the gl_pathv array. Currently we don't need it as hush.c won't
|
|
|
|
* call us if no glob support is available.
|
|
|
|
*/
|
|
|
|
int glob(pattern, flags, errfunc, pglob)
|
|
|
|
const char *pattern;
|
|
|
|
int flags;
|
|
|
|
int (*errfunc) __P((const char *, int));
|
|
|
|
glob_t *pglob;
|
|
|
|
{
|
|
|
|
int elems, i;
|
|
|
|
|
|
|
|
if (!(flags & GLOB_APPEND)) {
|
|
|
|
pglob->gl_pathc = 0;
|
|
|
|
pglob->gl_pathv = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
elems = pglob->gl_pathc + 2;
|
|
|
|
if (flags & GLOB_DOOFFS)
|
|
|
|
elems += pglob->gl_offs;
|
|
|
|
|
|
|
|
pglob->gl_pathv = xrealloc(pglob->gl_pathv, elems * sizeof(char *));
|
|
|
|
|
|
|
|
if (flags & GLOB_DOOFFS)
|
|
|
|
for (i = 0; i < pglob->gl_offs; i++)
|
|
|
|
pglob->gl_pathv[i] = NULL;
|
|
|
|
|
|
|
|
pglob->gl_pathv[pglob->gl_pathc] = strdup(pattern);
|
|
|
|
pglob->gl_pathc++;
|
|
|
|
pglob->gl_pathv[pglob->gl_pathc] = NULL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_FAKE_GLOB */
|
|
|
|
|
|
|
|
/* Free storage allocated in PGLOB by a previous `glob' call. */
|
2010-10-15 06:22:22 +00:00
|
|
|
void globfree(glob_t *pglob)
|
2008-03-09 21:35:38 +00:00
|
|
|
{
|
|
|
|
if (pglob->gl_pathv != NULL) {
|
2010-10-15 06:22:22 +00:00
|
|
|
int i = pglob->gl_flags & GLOB_DOOFFS ? pglob->gl_offs : 0;
|
2008-03-09 21:35:38 +00:00
|
|
|
for (; i < pglob->gl_pathc; ++i)
|
|
|
|
if (pglob->gl_pathv[i] != NULL)
|
|
|
|
free((__ptr_t) pglob->gl_pathv[i]);
|
|
|
|
free((__ptr_t) pglob->gl_pathv);
|
|
|
|
}
|
|
|
|
}
|