version 1.1, 1993/03/21 09:45:37 |
version 1.23.8.1, 2009/05/13 19:18:23 |
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/* $NetBSD$ */ |
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/* |
/* |
* Copyright (c) 1989 The Regents of the University of California. |
* Copyright (c) 1989, 1993 |
* All rights reserved. |
* The Regents of the University of California. All rights reserved. |
* |
* |
* This code is derived from software contributed to Berkeley by |
* This code is derived from software contributed to Berkeley by |
* Guido van Rossum. |
* Guido van Rossum. |
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* 2. Redistributions in binary form must reproduce the above copyright |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
* 3. Neither the name of the University nor the names of its contributors |
* must display the following acknowledgement: |
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* This product includes software developed by the University of |
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* California, Berkeley and its contributors. |
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* 4. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* without specific prior written permission. |
* |
* |
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* SUCH DAMAGE. |
* SUCH DAMAGE. |
*/ |
*/ |
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#include <sys/cdefs.h> |
#if defined(LIBC_SCCS) && !defined(lint) |
#if defined(LIBC_SCCS) && !defined(lint) |
static char sccsid[] = "@(#)glob.c 5.12 (Berkeley) 6/24/91"; |
#if 0 |
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static char sccsid[] = "@(#)glob.c 8.3 (Berkeley) 10/13/93"; |
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#else |
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__RCSID("$NetBSD$"); |
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#endif |
#endif /* LIBC_SCCS and not lint */ |
#endif /* LIBC_SCCS and not lint */ |
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/* |
/* |
Line 45 static char sccsid[] = "@(#)glob.c 5.12 |
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Line 48 static char sccsid[] = "@(#)glob.c 5.12 |
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* |
* |
* Optional extra services, controlled by flags not defined by POSIX: |
* Optional extra services, controlled by flags not defined by POSIX: |
* |
* |
* GLOB_QUOTE: |
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* Escaping convention: \ inhibits any special meaning the following |
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* character might have (except \ at end of string is retained). |
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* GLOB_MAGCHAR: |
* GLOB_MAGCHAR: |
* Set in gl_flags if pattern contained a globbing character. |
* Set in gl_flags if pattern contained a globbing character. |
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* GLOB_NOMAGIC: |
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* Same as GLOB_NOCHECK, but it will only append pattern if it did |
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* not contain any magic characters. [Used in csh style globbing] |
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* GLOB_ALTDIRFUNC: |
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* Use alternately specified directory access functions. |
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* GLOB_TILDE: |
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* expand ~user/foo to the /home/dir/of/user/foo |
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* GLOB_BRACE: |
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* expand {1,2}{a,b} to 1a 1b 2a 2b |
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* GLOB_PERIOD: |
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* allow metacharacters to match leading dots in filenames. |
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* GLOB_NO_DOTDIRS: |
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* . and .. are hidden from wildcards, even if GLOB_PERIOD is set. |
* gl_matchc: |
* gl_matchc: |
* Number of matches in the current invocation of glob. |
* Number of matches in the current invocation of glob. |
*/ |
*/ |
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#include <sys/cdefs.h> |
#include "namespace.h" |
#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/stat.h> |
#include <sys/stat.h> |
#include <dirent.h> |
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#include <glob.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
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#include <dirent.h> |
#include <errno.h> |
#include <errno.h> |
#include <string.h> |
#include <glob.h> |
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#include <pwd.h> |
#include <stdio.h> |
#include <stdio.h> |
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#include <stddef.h> |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#ifdef HAVE_NBTOOL_CONFIG_H |
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#define NO_GETPW_R |
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#endif |
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#if !defined(ARG_MAX) |
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#include <limits.h> |
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#define ARG_MAX _POSIX_ARG_MAX |
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#endif |
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/* |
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* XXX: For NetBSD 1.4.x compatibility. (kill me l8r) |
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*/ |
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#ifndef _DIAGASSERT |
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#define _DIAGASSERT(a) |
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#endif |
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#define DOLLAR '$' |
#define DOLLAR '$' |
#define DOT '.' |
#define DOT '.' |
Line 78 static char sccsid[] = "@(#)glob.c 5.12 |
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Line 112 static char sccsid[] = "@(#)glob.c 5.12 |
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#define STAR '*' |
#define STAR '*' |
#define TILDE '~' |
#define TILDE '~' |
#define UNDERSCORE '_' |
#define UNDERSCORE '_' |
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#define LBRACE '{' |
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#define RBRACE '}' |
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#define SLASH '/' |
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#define COMMA ',' |
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#ifndef USE_8BIT_CHARS |
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#define M_QUOTE 0x8000 |
#define M_QUOTE 0x8000 |
#define M_PROTECT 0x4000 |
#define M_PROTECT 0x4000 |
#define M_MASK 0xffff |
#define M_MASK 0xffff |
#define M_ASCII 0x00ff |
#define M_ASCII 0x00ff |
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#define CHAR(c) ((c)&M_ASCII) |
typedef u_short Char; |
#define META(c) ((c)|M_QUOTE) |
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#else |
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#define M_QUOTE (Char)0x80 |
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#define M_PROTECT (Char)0x40 |
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#define M_MASK (Char)0xff |
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#define M_ASCII (Char)0x7f |
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typedef char Char; |
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#endif |
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#define CHAR(c) ((Char)((c)&M_ASCII)) |
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#define META(c) ((Char)((c)|M_QUOTE)) |
#define M_ALL META('*') |
#define M_ALL META('*') |
#define M_END META(']') |
#define M_END META(']') |
#define M_NOT META('!') |
#define M_NOT META('!') |
Line 94 static char sccsid[] = "@(#)glob.c 5.12 |
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Line 148 static char sccsid[] = "@(#)glob.c 5.12 |
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#define M_SET META('[') |
#define M_SET META('[') |
#define ismeta(c) (((c)&M_QUOTE) != 0) |
#define ismeta(c) (((c)&M_QUOTE) != 0) |
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typedef u_short Char; |
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static int compare __P((const void *, const void *)); |
static int compare(const void *, const void *); |
static void g_Ctoc __P((Char *, char *)); |
static int g_Ctoc(const Char *, char *, size_t); |
static int g_lstat __P((Char *, struct stat *)); |
static int g_lstat(Char *, __gl_stat_t *, glob_t *); |
static DIR *g_opendir __P((Char *)); |
static DIR *g_opendir(Char *, glob_t *); |
static Char *g_strchr __P((Char *, int)); |
static Char *g_strchr(const Char *, int); |
static int g_stat __P((Char *, struct stat *)); |
static int g_stat(Char *, __gl_stat_t *, glob_t *); |
static int glob1 __P((Char *, glob_t *)); |
static int glob0(const Char *, glob_t *); |
static int glob2 __P((Char *, Char *, Char *, glob_t *)); |
static int glob1(Char *, glob_t *, size_t *); |
static int glob3 __P((Char *, Char *, Char *, Char *, glob_t *)); |
static int glob2(Char *, Char *, Char *, Char *, glob_t *, |
static int globextend __P((Char *, glob_t *)); |
size_t *); |
static int match __P((Char *, Char *, Char *)); |
static int glob3(Char *, Char *, Char *, Char *, Char *, glob_t *, |
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size_t *); |
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static int globextend(const Char *, glob_t *, size_t *); |
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static const Char *globtilde(const Char *, Char *, size_t, glob_t *); |
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static int globexp1(const Char *, glob_t *); |
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static int globexp2(const Char *, const Char *, glob_t *, int *); |
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static int match(Char *, Char *, Char *); |
#ifdef DEBUG |
#ifdef DEBUG |
static void qprintf __P((Char *)); |
static void qprintf(const char *, Char *); |
#endif |
#endif |
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/* |
int |
* The main glob() routine: compiles the pattern (optionally processing |
glob(const char *pattern, int flags, int (*errfunc)(const char *, int), |
* quotes), calls glob1() to do the real pattern matching, and finally |
glob_t *pglob) |
* sorts the list (unless unsorted operation is requested). Returns 0 |
{ |
* if things went well, nonzero if errors occurred. It is not an error |
const u_char *patnext; |
* to find no matches. |
int c; |
*/ |
Char *bufnext, *bufend, patbuf[MAXPATHLEN+1]; |
glob(pattern, flags, errfunc, pglob) |
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const char *pattern; |
_DIAGASSERT(pattern != NULL); |
int flags, (*errfunc) __P((char *, int)); |
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glob_t *pglob; |
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{ |
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const u_char *compilepat, *patnext; |
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int c, err, oldpathc; |
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Char *bufnext, *bufend, *compilebuf, *qpatnext, patbuf[MAXPATHLEN+1]; |
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patnext = (u_char *) pattern; |
patnext = (const u_char *) pattern; |
if (!(flags & GLOB_APPEND)) { |
if (!(flags & GLOB_APPEND)) { |
pglob->gl_pathc = 0; |
pglob->gl_pathc = 0; |
pglob->gl_pathv = NULL; |
pglob->gl_pathv = NULL; |
Line 136 glob(pattern, flags, errfunc, pglob) |
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Line 189 glob(pattern, flags, errfunc, pglob) |
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} |
} |
pglob->gl_flags = flags & ~GLOB_MAGCHAR; |
pglob->gl_flags = flags & ~GLOB_MAGCHAR; |
pglob->gl_errfunc = errfunc; |
pglob->gl_errfunc = errfunc; |
oldpathc = pglob->gl_pathc; |
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pglob->gl_matchc = 0; |
pglob->gl_matchc = 0; |
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bufnext = patbuf; |
bufnext = patbuf; |
bufend = bufnext + MAXPATHLEN; |
bufend = bufnext + MAXPATHLEN; |
compilebuf = bufnext; |
if (flags & GLOB_NOESCAPE) { |
compilepat = patnext; |
while (bufnext < bufend && (c = *patnext++) != EOS) |
if (flags & GLOB_QUOTE) { |
*bufnext++ = c; |
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} else { |
/* Protect the quoted characters. */ |
/* Protect the quoted characters. */ |
while (bufnext < bufend && (c = *patnext++) != EOS) |
while (bufnext < bufend && (c = *patnext++) != EOS) |
if (c == QUOTE) { |
if (c == QUOTE) { |
Line 156 glob(pattern, flags, errfunc, pglob) |
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Line 209 glob(pattern, flags, errfunc, pglob) |
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else |
else |
*bufnext++ = c; |
*bufnext++ = c; |
} |
} |
else |
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while (bufnext < bufend && (c = *patnext++) != EOS) |
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*bufnext++ = c; |
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*bufnext = EOS; |
*bufnext = EOS; |
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if (flags & GLOB_BRACE) |
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return globexp1(patbuf, pglob); |
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else |
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return glob0(patbuf, pglob); |
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} |
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/* |
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* Expand recursively a glob {} pattern. When there is no more expansion |
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* invoke the standard globbing routine to glob the rest of the magic |
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* characters |
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*/ |
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static int |
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globexp1(const Char *pattern, glob_t *pglob) |
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{ |
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const Char* ptr = pattern; |
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int rv; |
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_DIAGASSERT(pattern != NULL); |
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_DIAGASSERT(pglob != NULL); |
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/* Protect a single {}, for find(1), like csh */ |
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if (pattern[0] == LBRACE && pattern[1] == RBRACE && pattern[2] == EOS) |
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return glob0(pattern, pglob); |
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while ((ptr = (const Char *) g_strchr(ptr, LBRACE)) != NULL) |
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if (!globexp2(ptr, pattern, pglob, &rv)) |
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return rv; |
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return glob0(pattern, pglob); |
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} |
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/* |
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* Recursive brace globbing helper. Tries to expand a single brace. |
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* If it succeeds then it invokes globexp1 with the new pattern. |
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* If it fails then it tries to glob the rest of the pattern and returns. |
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*/ |
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static int |
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globexp2(const Char *ptr, const Char *pattern, glob_t *pglob, int *rv) |
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{ |
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int i; |
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Char *lm, *ls; |
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const Char *pe, *pm, *pl; |
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Char patbuf[MAXPATHLEN + 1]; |
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_DIAGASSERT(ptr != NULL); |
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_DIAGASSERT(pattern != NULL); |
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_DIAGASSERT(pglob != NULL); |
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_DIAGASSERT(rv != NULL); |
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/* copy part up to the brace */ |
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for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++) |
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continue; |
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ls = lm; |
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/* Find the balanced brace */ |
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for (i = 0, pe = ++ptr; *pe; pe++) |
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if (*pe == LBRACKET) { |
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/* Ignore everything between [] */ |
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for (pm = pe++; *pe != RBRACKET && *pe != EOS; pe++) |
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continue; |
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if (*pe == EOS) { |
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/* |
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* We could not find a matching RBRACKET. |
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* Ignore and just look for RBRACE |
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*/ |
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pe = pm; |
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} |
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} |
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else if (*pe == LBRACE) |
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i++; |
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else if (*pe == RBRACE) { |
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if (i == 0) |
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break; |
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i--; |
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} |
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/* Non matching braces; just glob the pattern */ |
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if (i != 0 || *pe == EOS) { |
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/* |
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* we use `pattern', not `patbuf' here so that that |
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* unbalanced braces are passed to the match |
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*/ |
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*rv = glob0(pattern, pglob); |
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return 0; |
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} |
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for (i = 0, pl = pm = ptr; pm <= pe; pm++) { |
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switch (*pm) { |
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case LBRACKET: |
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/* Ignore everything between [] */ |
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for (pl = pm++; *pm != RBRACKET && *pm != EOS; pm++) |
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continue; |
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if (*pm == EOS) { |
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/* |
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* We could not find a matching RBRACKET. |
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* Ignore and just look for RBRACE |
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*/ |
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pm = pl; |
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} |
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break; |
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case LBRACE: |
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i++; |
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break; |
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case RBRACE: |
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if (i) { |
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i--; |
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break; |
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} |
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/* FALLTHROUGH */ |
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case COMMA: |
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if (i && *pm == COMMA) |
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break; |
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else { |
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/* Append the current string */ |
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for (lm = ls; (pl < pm); *lm++ = *pl++) |
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continue; |
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/* |
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* Append the rest of the pattern after the |
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* closing brace |
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*/ |
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for (pl = pe + 1; (*lm++ = *pl++) != EOS;) |
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continue; |
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/* Expand the current pattern */ |
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#ifdef DEBUG |
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qprintf("globexp2:", patbuf); |
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#endif |
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*rv = globexp1(patbuf, pglob); |
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/* move after the comma, to the next string */ |
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pl = pm + 1; |
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} |
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break; |
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default: |
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break; |
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} |
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} |
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*rv = 0; |
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return 0; |
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} |
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/* |
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* expand tilde from the passwd file. |
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*/ |
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static const Char * |
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globtilde(const Char *pattern, Char *patbuf, size_t patsize, glob_t *pglob) |
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{ |
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struct passwd *pwd; |
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const char *h; |
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const Char *p; |
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Char *b; |
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char *d; |
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Char *pend = &patbuf[patsize / sizeof(Char)]; |
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#ifndef NO_GETPW_R |
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struct passwd pwres; |
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char pwbuf[1024]; |
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#endif |
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pend--; |
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_DIAGASSERT(pattern != NULL); |
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_DIAGASSERT(patbuf != NULL); |
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_DIAGASSERT(pglob != NULL); |
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if (*pattern != TILDE || !(pglob->gl_flags & GLOB_TILDE)) |
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return pattern; |
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/* Copy up to the end of the string or / */ |
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for (p = pattern + 1, d = (char *)(void *)patbuf; |
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d < (char *)(void *)pend && *p && *p != SLASH; |
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*d++ = *p++) |
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continue; |
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if (d == (char *)(void *)pend) |
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return NULL; |
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*d = EOS; |
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d = (char *)(void *)patbuf; |
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if (*d == EOS) { |
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/* |
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* handle a plain ~ or ~/ by expanding $HOME |
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* first and then trying the password file |
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*/ |
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if ((h = getenv("HOME")) == NULL) { |
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#ifdef NO_GETPW_R |
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if ((pwd = getpwuid(getuid())) == NULL) |
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#else |
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if (getpwuid_r(getuid(), &pwres, pwbuf, sizeof(pwbuf), |
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&pwd) != 0 || pwd == NULL) |
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#endif |
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return pattern; |
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else |
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h = pwd->pw_dir; |
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} |
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} |
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else { |
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/* |
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* Expand a ~user |
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*/ |
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#ifdef NO_GETPW_R |
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if ((pwd = getpwnam(d)) == NULL) |
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#else |
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if (getpwnam_r(d, &pwres, pwbuf, sizeof(pwbuf), &pwd) != 0 || |
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pwd == NULL) |
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#endif |
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return pattern; |
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else |
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h = pwd->pw_dir; |
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} |
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/* Copy the home directory */ |
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for (b = patbuf; b < pend && *h; *b++ = *h++) |
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continue; |
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if (b == pend) |
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return NULL; |
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/* Append the rest of the pattern */ |
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while (b < pend && (*b++ = *p++) != EOS) |
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continue; |
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if (b == pend) |
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return NULL; |
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return patbuf; |
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} |
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/* |
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* The main glob() routine: compiles the pattern (optionally processing |
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* quotes), calls glob1() to do the real pattern matching, and finally |
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* sorts the list (unless unsorted operation is requested). Returns 0 |
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* if things went well, nonzero if errors occurred. It is not an error |
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* to find no matches. |
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*/ |
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static int |
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glob0(const Char *pattern, glob_t *pglob) |
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{ |
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const Char *qpatnext; |
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int c, error; |
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__gl_size_t oldpathc; |
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Char *bufnext, patbuf[MAXPATHLEN+1]; |
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size_t limit = 0; |
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_DIAGASSERT(pattern != NULL); |
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_DIAGASSERT(pglob != NULL); |
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if ((qpatnext = globtilde(pattern, patbuf, sizeof(patbuf), |
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pglob)) == NULL) |
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return GLOB_ABEND; |
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oldpathc = pglob->gl_pathc; |
bufnext = patbuf; |
bufnext = patbuf; |
qpatnext = patbuf; |
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/* We don't need to check for buffer overflow any more. */ |
/* We don't need to check for buffer overflow any more. */ |
while ((c = *qpatnext++) != EOS) { |
while ((c = *qpatnext++) != EOS) { |
switch (c) { |
switch (c) { |
case LBRACKET: |
case LBRACKET: |
pglob->gl_flags |= GLOB_MAGCHAR; |
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c = *qpatnext; |
c = *qpatnext; |
if (c == NOT) |
if (c == NOT) |
++qpatnext; |
++qpatnext; |
Line 191 glob(pattern, flags, errfunc, pglob) |
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Line 498 glob(pattern, flags, errfunc, pglob) |
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qpatnext += 2; |
qpatnext += 2; |
} |
} |
} while ((c = *qpatnext++) != RBRACKET); |
} while ((c = *qpatnext++) != RBRACKET); |
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pglob->gl_flags |= GLOB_MAGCHAR; |
*bufnext++ = M_END; |
*bufnext++ = M_END; |
break; |
break; |
case QUESTION: |
case QUESTION: |
Line 199 glob(pattern, flags, errfunc, pglob) |
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Line 507 glob(pattern, flags, errfunc, pglob) |
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break; |
break; |
case STAR: |
case STAR: |
pglob->gl_flags |= GLOB_MAGCHAR; |
pglob->gl_flags |= GLOB_MAGCHAR; |
*bufnext++ = M_ALL; |
/* collapse adjacent stars to one, |
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* to avoid exponential behavior |
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*/ |
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if (bufnext == patbuf || bufnext[-1] != M_ALL) |
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*bufnext++ = M_ALL; |
break; |
break; |
default: |
default: |
*bufnext++ = CHAR(c); |
*bufnext++ = CHAR(c); |
Line 208 glob(pattern, flags, errfunc, pglob) |
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Line 520 glob(pattern, flags, errfunc, pglob) |
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} |
} |
*bufnext = EOS; |
*bufnext = EOS; |
#ifdef DEBUG |
#ifdef DEBUG |
qprintf(patbuf); |
qprintf("glob0:", patbuf); |
#endif |
#endif |
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if ((err = glob1(patbuf, pglob)) != 0) |
if ((error = glob1(patbuf, pglob, &limit)) != 0) |
return(err); |
return error; |
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if (pglob->gl_pathc == oldpathc && flags & GLOB_NOCHECK) { |
if (pglob->gl_pathc == oldpathc) { |
if (!(flags & GLOB_QUOTE)) { |
/* |
Char *dp = compilebuf; |
* If there was no match we are going to append the pattern |
const u_char *sp = compilepat; |
* if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was |
while (*dp++ = *sp++); |
* specified and the pattern did not contain any magic |
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* characters GLOB_NOMAGIC is there just for compatibility |
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* with csh. |
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*/ |
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if ((pglob->gl_flags & GLOB_NOCHECK) || |
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((pglob->gl_flags & (GLOB_NOMAGIC|GLOB_MAGCHAR)) |
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== GLOB_NOMAGIC)) { |
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return globextend(pattern, pglob, &limit); |
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} else { |
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return GLOB_NOMATCH; |
} |
} |
else { |
} else if (!(pglob->gl_flags & GLOB_NOSORT)) { |
/* |
|
* Copy pattern, interpreting quotes; this is slightly |
|
* different than the interpretation of quotes above |
|
* -- which should prevail? |
|
*/ |
|
while (*compilepat != EOS) { |
|
if (*compilepat == QUOTE) { |
|
if (*++compilepat == EOS) |
|
--compilepat; |
|
} |
|
*compilebuf++ = (u_char)*compilepat++; |
|
} |
|
*compilebuf = EOS; |
|
} |
|
return(globextend(patbuf, pglob)); |
|
} else if (!(flags & GLOB_NOSORT)) |
|
qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, |
qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, |
pglob->gl_pathc - oldpathc, sizeof(char *), compare); |
(size_t)pglob->gl_pathc - oldpathc, sizeof(char *), |
return(0); |
compare); |
|
} |
|
|
|
return 0; |
} |
} |
|
|
static int |
static int |
compare(p, q) |
compare(const void *p, const void *q) |
const void *p, *q; |
|
{ |
{ |
return(strcmp(*(char **)p, *(char **)q)); |
|
|
_DIAGASSERT(p != NULL); |
|
_DIAGASSERT(q != NULL); |
|
|
|
return strcoll(*(const char * const *)p, *(const char * const *)q); |
} |
} |
|
|
static |
static int |
glob1(pattern, pglob) |
glob1(Char *pattern, glob_t *pglob, size_t *limit) |
Char *pattern; |
|
glob_t *pglob; |
|
{ |
{ |
Char pathbuf[MAXPATHLEN+1]; |
Char pathbuf[MAXPATHLEN+1]; |
|
|
|
_DIAGASSERT(pattern != NULL); |
|
_DIAGASSERT(pglob != NULL); |
|
|
/* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */ |
/* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */ |
if (*pattern == EOS) |
if (*pattern == EOS) |
return(0); |
return 0; |
return(glob2(pathbuf, pathbuf, pattern, pglob)); |
/* |
|
* we save one character so that we can use ptr >= limit, |
|
* in the general case when we are appending non nul chars only. |
|
*/ |
|
return glob2(pathbuf, pathbuf, |
|
pathbuf + (sizeof(pathbuf) / sizeof(*pathbuf)) - 1, pattern, |
|
pglob, limit); |
} |
} |
|
|
/* |
/* |
Line 267 glob1(pattern, pglob) |
|
Line 585 glob1(pattern, pglob) |
|
* of recursion for each segment in the pattern that contains one or more |
* of recursion for each segment in the pattern that contains one or more |
* meta characters. |
* meta characters. |
*/ |
*/ |
static |
static int |
glob2(pathbuf, pathend, pattern, pglob) |
glob2(Char *pathbuf, Char *pathend, Char *pathlim, Char *pattern, glob_t *pglob, |
Char *pathbuf, *pathend, *pattern; |
size_t *limit) |
glob_t *pglob; |
|
{ |
{ |
struct stat sb; |
__gl_stat_t sb; |
Char *p, *q; |
Char *p, *q; |
int anymeta; |
int anymeta; |
|
Char *pend; |
|
ptrdiff_t diff; |
|
|
|
_DIAGASSERT(pathbuf != NULL); |
|
_DIAGASSERT(pathend != NULL); |
|
_DIAGASSERT(pattern != NULL); |
|
_DIAGASSERT(pglob != NULL); |
|
|
/* |
/* |
* Loop over pattern segments until end of pattern or until |
* Loop over pattern segments until end of pattern or until |
Line 283 glob2(pathbuf, pathend, pattern, pglob) |
|
Line 607 glob2(pathbuf, pathend, pattern, pglob) |
|
for (anymeta = 0;;) { |
for (anymeta = 0;;) { |
if (*pattern == EOS) { /* End of pattern? */ |
if (*pattern == EOS) { /* End of pattern? */ |
*pathend = EOS; |
*pathend = EOS; |
if (g_stat(pathbuf, &sb)) |
if (g_lstat(pathbuf, &sb, pglob)) |
return(0); |
return 0; |
|
|
if (((pglob->gl_flags & GLOB_MARK) && |
if (((pglob->gl_flags & GLOB_MARK) && |
pathend[-1] != SEP) && (S_ISDIR(sb.st_mode) |
pathend[-1] != SEP) && (S_ISDIR(sb.st_mode) || |
|| (S_ISLNK(sb.st_mode) && |
(S_ISLNK(sb.st_mode) && |
(g_stat(pathbuf, &sb) == 0) && |
(g_stat(pathbuf, &sb, pglob) == 0) && |
S_ISDIR(sb.st_mode)))) { |
S_ISDIR(sb.st_mode)))) { |
|
if (pathend >= pathlim) |
|
return GLOB_ABORTED; |
*pathend++ = SEP; |
*pathend++ = SEP; |
*pathend = EOS; |
*pathend = EOS; |
} |
} |
++pglob->gl_matchc; |
++pglob->gl_matchc; |
return(globextend(pathbuf, pglob)); |
return globextend(pathbuf, pglob, limit); |
} |
} |
|
|
/* Find end of next segment, copy tentatively to pathend. */ |
/* Find end of next segment, copy tentatively to pathend. */ |
Line 304 glob2(pathbuf, pathend, pattern, pglob) |
|
Line 630 glob2(pathbuf, pathend, pattern, pglob) |
|
while (*p != EOS && *p != SEP) { |
while (*p != EOS && *p != SEP) { |
if (ismeta(*p)) |
if (ismeta(*p)) |
anymeta = 1; |
anymeta = 1; |
|
if (q >= pathlim) |
|
return GLOB_ABORTED; |
*q++ = *p++; |
*q++ = *p++; |
} |
} |
|
|
if (!anymeta) { /* No expansion, do next segment. */ |
/* |
|
* No expansion, or path ends in slash-dot shash-dot-dot, |
|
* do next segment. |
|
*/ |
|
if (pglob->gl_flags & GLOB_PERIOD) { |
|
for (pend = pathend; pend > pathbuf && pend[-1] == '/'; |
|
pend--) |
|
continue; |
|
diff = pend - pathbuf; |
|
} else { |
|
/* XXX: GCC */ |
|
diff = 0; |
|
pend = pathend; |
|
} |
|
|
|
if ((!anymeta) || |
|
((pglob->gl_flags & GLOB_PERIOD) && |
|
(diff >= 1 && pend[-1] == DOT) && |
|
(diff >= 2 && (pend[-2] == SLASH || pend[-2] == DOT)) && |
|
(diff < 3 || pend[-3] == SLASH))) { |
pathend = q; |
pathend = q; |
pattern = p; |
pattern = p; |
while (*pattern == SEP) |
while (*pattern == SEP) { |
|
if (pathend >= pathlim) |
|
return GLOB_ABORTED; |
*pathend++ = *pattern++; |
*pathend++ = *pattern++; |
|
} |
} else /* Need expansion, recurse. */ |
} else /* Need expansion, recurse. */ |
return(glob3(pathbuf, pathend, pattern, p, pglob)); |
return glob3(pathbuf, pathend, pathlim, pattern, p, |
|
pglob, limit); |
} |
} |
/* NOTREACHED */ |
/* NOTREACHED */ |
} |
} |
|
|
static |
static int |
glob3(pathbuf, pathend, pattern, restpattern, pglob) |
glob3(Char *pathbuf, Char *pathend, Char *pathlim, Char *pattern, |
Char *pathbuf, *pathend, *pattern, *restpattern; |
Char *restpattern, glob_t *pglob, size_t *limit) |
glob_t *pglob; |
|
{ |
{ |
register struct dirent *dp; |
struct dirent *dp; |
DIR *dirp; |
DIR *dirp; |
int len, err; |
int error; |
|
char buf[MAXPATHLEN]; |
|
|
|
/* |
|
* The readdirfunc declaration can't be prototyped, because it is |
|
* assigned, below, to two functions which are prototyped in glob.h |
|
* and dirent.h as taking pointers to differently typed opaque |
|
* structures. |
|
*/ |
|
struct dirent *(*readdirfunc)(void *); |
|
|
|
_DIAGASSERT(pathbuf != NULL); |
|
_DIAGASSERT(pathend != NULL); |
|
_DIAGASSERT(pattern != NULL); |
|
_DIAGASSERT(restpattern != NULL); |
|
_DIAGASSERT(pglob != NULL); |
|
|
*pathend = EOS; |
*pathend = EOS; |
errno = 0; |
errno = 0; |
|
|
if (!(dirp = g_opendir(pathbuf))) |
if ((dirp = g_opendir(pathbuf, pglob)) == NULL) { |
/* TODO: don't call for ENOENT or ENOTDIR? */ |
if (pglob->gl_errfunc) { |
if (pglob->gl_errfunc && |
if (g_Ctoc(pathbuf, buf, sizeof(buf))) |
(*pglob->gl_errfunc)(pathbuf, errno) || |
return GLOB_ABORTED; |
(pglob->gl_flags & GLOB_ERR)) |
if (pglob->gl_errfunc(buf, errno) || |
return(GLOB_ABEND); |
pglob->gl_flags & GLOB_ERR) |
else |
return GLOB_ABORTED; |
return(0); |
} |
|
/* |
|
* Posix/XOpen: glob should return when it encounters a |
|
* directory that it cannot open or read |
|
* XXX: Should we ignore ENOTDIR and ENOENT though? |
|
* I think that Posix had in mind EPERM... |
|
*/ |
|
if (pglob->gl_flags & GLOB_ERR) |
|
return GLOB_ABORTED; |
|
|
err = 0; |
return 0; |
|
} |
|
|
/* Search directory for matching names. */ |
error = 0; |
while ((dp = readdir(dirp))) { |
|
register u_char *sc; |
|
register Char *dc; |
|
|
|
/* Initial DOT must be matched literally. */ |
/* Search directory for matching names. */ |
if (dp->d_name[0] == DOT && *pattern != DOT) |
if (pglob->gl_flags & GLOB_ALTDIRFUNC) |
|
readdirfunc = pglob->gl_readdir; |
|
else |
|
readdirfunc = (struct dirent *(*)__P((void *))) readdir; |
|
while ((dp = (*readdirfunc)(dirp)) != NULL) { |
|
u_char *sc; |
|
Char *dc; |
|
|
|
/* |
|
* Initial DOT must be matched literally, unless we have |
|
* GLOB_PERIOD set. |
|
*/ |
|
if ((pglob->gl_flags & GLOB_PERIOD) == 0) |
|
if (dp->d_name[0] == DOT && *pattern != DOT) |
|
continue; |
|
/* |
|
* If GLOB_NO_DOTDIRS is set, . and .. vanish. |
|
*/ |
|
if ((pglob->gl_flags & GLOB_NO_DOTDIRS) && |
|
(dp->d_name[0] == DOT) && |
|
((dp->d_name[1] == EOS) || |
|
((dp->d_name[1] == DOT) && (dp->d_name[2] == EOS)))) |
continue; |
continue; |
|
/* |
|
* The resulting string contains EOS, so we can |
|
* use the pathlim character, if it is the nul |
|
*/ |
for (sc = (u_char *) dp->d_name, dc = pathend; |
for (sc = (u_char *) dp->d_name, dc = pathend; |
*dc++ = *sc++;); |
dc <= pathlim && (*dc++ = *sc++) != EOS;) |
|
continue; |
|
|
|
/* |
|
* Have we filled the buffer without seeing EOS? |
|
*/ |
|
if (dc > pathlim && *pathlim != EOS) { |
|
/* |
|
* Abort when requested by caller, otherwise |
|
* reset pathend back to last SEP and continue |
|
* with next dir entry. |
|
*/ |
|
if (pglob->gl_flags & GLOB_ERR) { |
|
error = GLOB_ABORTED; |
|
break; |
|
} |
|
else { |
|
*pathend = EOS; |
|
continue; |
|
} |
|
} |
|
|
if (!match(pathend, pattern, restpattern)) { |
if (!match(pathend, pattern, restpattern)) { |
*pathend = EOS; |
*pathend = EOS; |
continue; |
continue; |
} |
} |
err = glob2(pathbuf, --dc, restpattern, pglob); |
error = glob2(pathbuf, --dc, pathlim, restpattern, pglob, limit); |
if (err) |
if (error) |
break; |
break; |
} |
} |
|
|
/* TODO: check error from readdir? */ |
if (pglob->gl_flags & GLOB_ALTDIRFUNC) |
(void)closedir(dirp); |
(*pglob->gl_closedir)(dirp); |
return(err); |
else |
|
closedir(dirp); |
|
|
|
/* |
|
* Again Posix X/Open issue with regards to error handling. |
|
*/ |
|
if ((error || errno) && (pglob->gl_flags & GLOB_ERR)) |
|
return GLOB_ABORTED; |
|
|
|
return error; |
} |
} |
|
|
|
|
/* |
/* |
* Extend the gl_pathv member of a glob_t structure to accomodate a new item, |
* Extend the gl_pathv member of a glob_t structure to accommodate a new item, |
* add the new item, and update gl_pathc. |
* add the new item, and update gl_pathc. |
* |
* |
* This assumes the BSD realloc, which only copies the block when its size |
* This assumes the BSD realloc, which only copies the block when its size |
Line 381 glob3(pathbuf, pathend, pattern, restpat |
|
Line 807 glob3(pathbuf, pathend, pattern, restpat |
|
* gl_pathv points to (gl_offs + gl_pathc + 1) items. |
* gl_pathv points to (gl_offs + gl_pathc + 1) items. |
*/ |
*/ |
static int |
static int |
globextend(path, pglob) |
globextend(const Char *path, glob_t *pglob, size_t *limit) |
Char *path; |
{ |
glob_t *pglob; |
char **pathv; |
{ |
size_t i, newsize, len; |
register char **pathv; |
|
register int i; |
|
u_int newsize; |
|
char *copy; |
char *copy; |
Char *p; |
const Char *p; |
|
|
|
_DIAGASSERT(path != NULL); |
|
_DIAGASSERT(pglob != NULL); |
|
|
newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); |
newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); |
pathv = (char **)realloc((char *)pglob->gl_pathv, newsize); |
pathv = pglob->gl_pathv ? realloc(pglob->gl_pathv, newsize) : |
|
malloc(newsize); |
if (pathv == NULL) |
if (pathv == NULL) |
return(GLOB_NOSPACE); |
return GLOB_NOSPACE; |
|
|
if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { |
if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { |
/* first time around -- clear initial gl_offs items */ |
/* first time around -- clear initial gl_offs items */ |
pathv += pglob->gl_offs; |
pathv += pglob->gl_offs; |
for (i = pglob->gl_offs; --i >= 0; ) |
for (i = pglob->gl_offs + 1; --i > 0; ) |
*--pathv = NULL; |
*--pathv = NULL; |
} |
} |
pglob->gl_pathv = pathv; |
pglob->gl_pathv = pathv; |
|
|
for (p = path; *p++;); |
for (p = path; *p++;) |
if ((copy = malloc(p - path)) != NULL) { |
continue; |
g_Ctoc(path, copy); |
len = (size_t)(p - path); |
|
*limit += len; |
|
if ((copy = malloc(len)) != NULL) { |
|
if (g_Ctoc(path, copy, len)) { |
|
free(copy); |
|
return GLOB_ABORTED; |
|
} |
pathv[pglob->gl_offs + pglob->gl_pathc++] = copy; |
pathv[pglob->gl_offs + pglob->gl_pathc++] = copy; |
} |
} |
pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; |
pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; |
return(copy == NULL ? GLOB_NOSPACE : 0); |
|
|
if ((pglob->gl_flags & GLOB_LIMIT) && (newsize + *limit) >= ARG_MAX) { |
|
errno = 0; |
|
return GLOB_NOSPACE; |
|
} |
|
|
|
return copy == NULL ? GLOB_NOSPACE : 0; |
} |
} |
|
|
|
|
Line 418 globextend(path, pglob) |
|
Line 857 globextend(path, pglob) |
|
* pattern matching function for filenames. Each occurrence of the * |
* pattern matching function for filenames. Each occurrence of the * |
* pattern causes a recursion level. |
* pattern causes a recursion level. |
*/ |
*/ |
static |
static int |
match(name, pat, patend) |
match(Char *name, Char *pat, Char *patend) |
register Char *name, *pat, *patend; |
|
{ |
{ |
int ok, negate_range; |
int ok, negate_range; |
Char c, k; |
Char c, k; |
|
|
|
_DIAGASSERT(name != NULL); |
|
_DIAGASSERT(pat != NULL); |
|
_DIAGASSERT(patend != NULL); |
|
|
while (pat < patend) { |
while (pat < patend) { |
c = *pat++; |
c = *pat++; |
switch (c & M_MASK) { |
switch (c & M_MASK) { |
case M_ALL: |
case M_ALL: |
if (pat == patend) |
if (pat == patend) |
return(1); |
return 1; |
for (; *name != EOS; ++name) |
do |
if (match(name, pat, patend)) |
if (match(name, pat, patend)) |
return(1); |
return 1; |
return(0); |
while (*name++ != EOS); |
|
return 0; |
case M_ONE: |
case M_ONE: |
if (*name++ == EOS) |
if (*name++ == EOS) |
return(0); |
return 0; |
break; |
break; |
case M_SET: |
case M_SET: |
ok = 0; |
ok = 0; |
k = *name++; |
if ((k = *name++) == EOS) |
if (negate_range = ((*pat & M_MASK) == M_NOT)) |
return 0; |
|
if ((negate_range = ((*pat & M_MASK) == M_NOT)) != EOS) |
++pat; |
++pat; |
while (((c = *pat++) & M_MASK) != M_END) |
while (((c = *pat++) & M_MASK) != M_END) |
if ((*pat & M_MASK) == M_RNG) { |
if ((*pat & M_MASK) == M_RNG) { |
Line 452 match(name, pat, patend) |
|
Line 896 match(name, pat, patend) |
|
} else if (c == k) |
} else if (c == k) |
ok = 1; |
ok = 1; |
if (ok == negate_range) |
if (ok == negate_range) |
return(0); |
return 0; |
break; |
break; |
default: |
default: |
if (*name++ != c) |
if (*name++ != c) |
return(0); |
return 0; |
break; |
break; |
} |
} |
} |
} |
return(*name == EOS); |
return *name == EOS; |
} |
} |
|
|
/* Free allocated data belonging to a glob_t structure. */ |
/* Free allocated data belonging to a glob_t structure. */ |
void |
void |
globfree(pglob) |
globfree(glob_t *pglob) |
glob_t *pglob; |
|
{ |
{ |
register int i; |
size_t i; |
register char **pp; |
char **pp; |
|
|
|
_DIAGASSERT(pglob != NULL); |
|
|
if (pglob->gl_pathv != NULL) { |
if (pglob->gl_pathv != NULL) { |
pp = pglob->gl_pathv + pglob->gl_offs; |
pp = pglob->gl_pathv + pglob->gl_offs; |
|
|
if (*pp) |
if (*pp) |
free(*pp); |
free(*pp); |
free(pglob->gl_pathv); |
free(pglob->gl_pathv); |
|
pglob->gl_pathv = NULL; |
|
pglob->gl_pathc = 0; |
} |
} |
} |
} |
|
|
|
#ifndef __LIBC12_SOURCE__ |
|
int |
|
glob_pattern_p(const char *pattern, int quote) |
|
{ |
|
int range = 0; |
|
|
|
for (; *pattern; pattern++) |
|
switch (*pattern) { |
|
case QUESTION: |
|
case STAR: |
|
return 1; |
|
|
|
case QUOTE: |
|
if (quote && pattern[1] != '\0') |
|
++pattern; |
|
break; |
|
|
|
case LBRACKET: |
|
range = 1; |
|
break; |
|
|
|
case RBRACKET: |
|
if (range) |
|
return 1; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
return 0; |
|
} |
|
#endif |
|
|
static DIR * |
static DIR * |
g_opendir(str) |
g_opendir(Char *str, glob_t *pglob) |
register Char *str; |
|
{ |
{ |
char buf[MAXPATHLEN]; |
char buf[MAXPATHLEN]; |
|
|
|
_DIAGASSERT(str != NULL); |
|
_DIAGASSERT(pglob != NULL); |
|
|
if (!*str) |
if (!*str) |
return(opendir(".")); |
(void)strlcpy(buf, ".", sizeof(buf)); |
g_Ctoc(str, buf); |
else { |
return(opendir(buf)); |
if (g_Ctoc(str, buf, sizeof(buf))) |
|
return NULL; |
|
} |
|
|
|
if (pglob->gl_flags & GLOB_ALTDIRFUNC) |
|
return (*pglob->gl_opendir)(buf); |
|
|
|
return opendir(buf); |
} |
} |
|
|
static int |
static int |
g_lstat(fn, sb) |
g_lstat(Char *fn, __gl_stat_t *sb, glob_t *pglob) |
register Char *fn; |
|
struct stat *sb; |
|
{ |
{ |
char buf[MAXPATHLEN]; |
char buf[MAXPATHLEN]; |
|
|
g_Ctoc(fn, buf); |
_DIAGASSERT(fn != NULL); |
return(lstat(buf, sb)); |
_DIAGASSERT(sb != NULL); |
|
_DIAGASSERT(pglob != NULL); |
|
|
|
if (g_Ctoc(fn, buf, sizeof(buf))) |
|
return -1; |
|
if (pglob->gl_flags & GLOB_ALTDIRFUNC) |
|
return (*pglob->gl_lstat)(buf, sb); |
|
return lstat(buf, sb); |
} |
} |
|
|
static int |
static int |
g_stat(fn, sb) |
g_stat(Char *fn, __gl_stat_t *sb, glob_t *pglob) |
register Char *fn; |
|
struct stat *sb; |
|
{ |
{ |
char buf[MAXPATHLEN]; |
char buf[MAXPATHLEN]; |
|
|
g_Ctoc(fn, buf); |
_DIAGASSERT(fn != NULL); |
return(stat(buf, sb)); |
_DIAGASSERT(sb != NULL); |
|
_DIAGASSERT(pglob != NULL); |
|
|
|
if (g_Ctoc(fn, buf, sizeof(buf))) |
|
return -1; |
|
if (pglob->gl_flags & GLOB_ALTDIRFUNC) |
|
return (*pglob->gl_stat)(buf, sb); |
|
return stat(buf, sb); |
} |
} |
|
|
static Char * |
static Char * |
g_strchr(str, ch) |
g_strchr(const Char *str, int ch) |
Char *str; |
|
int ch; |
|
{ |
{ |
|
|
|
_DIAGASSERT(str != NULL); |
|
|
do { |
do { |
if (*str == ch) |
if (*str == ch) |
return (str); |
return __UNCONST(str); |
} while (*str++); |
} while (*str++); |
return (NULL); |
return NULL; |
} |
} |
|
|
static void |
static int |
g_Ctoc(str, buf) |
g_Ctoc(const Char *str, char *buf, size_t len) |
register Char *str; |
|
char *buf; |
|
{ |
{ |
register char *dc; |
char *dc; |
|
|
|
_DIAGASSERT(str != NULL); |
|
_DIAGASSERT(buf != NULL); |
|
|
|
if (len == 0) |
|
return 1; |
|
|
for (dc = buf; *dc++ = *str++;); |
for (dc = buf; len && (*dc++ = *str++) != EOS; len--) |
|
continue; |
|
|
|
return len == 0; |
} |
} |
|
|
#ifdef DEBUG |
#ifdef DEBUG |
static void |
static void |
qprintf(s) |
qprintf(const char *str, Char *s) |
register Char *s; |
|
{ |
{ |
register Char *p; |
Char *p; |
|
|
|
_DIAGASSERT(str != NULL); |
|
_DIAGASSERT(s != NULL); |
|
|
|
(void)printf("%s:\n", str); |
for (p = s; *p; p++) |
for (p = s; *p; p++) |
(void)printf("%c", *p & 0xff); |
(void)printf("%c", CHAR(*p)); |
(void)printf("\n"); |
(void)printf("\n"); |
for (p = s; *p; p++) |
for (p = s; *p; p++) |
(void)printf("%c", *p & M_PROTECT ? '"' : ' '); |
(void)printf("%c", *p & M_PROTECT ? '"' : ' '); |
(void)printf("\n"); |
(void)printf("\n"); |
for (p = s; *p; p++) |
for (p = s; *p; p++) |
(void)printf("%c", *p & M_META ? '_' : ' '); |
(void)printf("%c", ismeta(*p) ? '_' : ' '); |
(void)printf("\n"); |
(void)printf("\n"); |
} |
} |
#endif |
#endif |