]> git.saurik.com Git - apple/libinfo.git/blobdiff - util.subproj/glob.c
Libinfo-221.tar.gz
[apple/libinfo.git] / util.subproj / glob.c
diff --git a/util.subproj/glob.c b/util.subproj/glob.c
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-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
- * Reserved.  This file contains Original Code and/or Modifications of
- * Original Code as defined in and that are subject to the Apple Public
- * Source License Version 1.1 (the "License").  You may not use this file
- * except in compliance with the License.  Please obtain a copy of the
- * License at http://www.apple.com/publicsource and read it before using
- * this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved
- *
- * Copyright (c) 1989, 1993
- *     The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Guido van Rossum.
- *
- * The NEXTSTEP Software License Agreement specifies the terms
- * and conditions for redistribution.
- *
- *     @(#)glob.c      8.3 (Berkeley) 10/13/93
- */
-
-/*
- * glob(3) -- a superset of the one defined in POSIX 1003.2.
- *
- * The [!...] convention to negate a range is supported (SysV, Posix, ksh).
- *
- * Optional extra services, controlled by flags not defined by POSIX:
- *
- * GLOB_QUOTE:
- *     Escaping convention: \ inhibits any special meaning the following
- *     character might have (except \ at end of string is retained).
- * GLOB_MAGCHAR:
- *     Set in gl_flags if pattern contained a globbing character.
- * GLOB_NOMAGIC:
- *     Same as GLOB_NOCHECK, but it will only append pattern if it did
- *     not contain any magic characters.  [Used in csh style globbing]
- * GLOB_ALTDIRFUNC:
- *     Use alternately specified directory access functions.
- * GLOB_TILDE:
- *     expand ~user/foo to the /home/dir/of/user/foo
- * GLOB_BRACE:
- *     expand {1,2}{a,b} to 1a 1b 2a 2b
- * gl_matchc:
- *     Number of matches in the current invocation of glob.
- */
-
-#include <sys/param.h>
-#include <sys/stat.h>
-
-#include <ctype.h>
-#include <dirent.h>
-#include <errno.h>
-#include <glob.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#define        DOLLAR          '$'
-#define        DOT             '.'
-#define        EOS             '\0'
-#define        LBRACKET        '['
-#define        NOT             '!'
-#define        QUESTION        '?'
-#define        QUOTE           '\\'
-#define        RANGE           '-'
-#define        RBRACKET        ']'
-#define        SEP             '/'
-#define        STAR            '*'
-#define        TILDE           '~'
-#define        UNDERSCORE      '_'
-#define        LBRACE          '{'
-#define        RBRACE          '}'
-#define        SLASH           '/'
-#define        COMMA           ','
-
-#ifndef DEBUG
-
-#define        M_QUOTE         0x8000
-#define        M_PROTECT       0x4000
-#define        M_MASK          0xffff
-#define        M_ASCII         0x00ff
-
-typedef u_short Char;
-
-#else
-
-#define        M_QUOTE         0x80
-#define        M_PROTECT       0x40
-#define        M_MASK          0xff
-#define        M_ASCII         0x7f
-
-typedef char Char;
-
-#endif
-
-
-#define        CHAR(c)         ((Char)((c)&M_ASCII))
-#define        META(c)         ((Char)((c)|M_QUOTE))
-#define        M_ALL           META('*')
-#define        M_END           META(']')
-#define        M_NOT           META('!')
-#define        M_ONE           META('?')
-#define        M_RNG           META('-')
-#define        M_SET           META('[')
-#define        ismeta(c)       (((c)&M_QUOTE) != 0)
-
-
-static int      compare __P((const void *, const void *));
-static int      g_Ctoc __P((const Char *, char *, u_int));
-static int      g_lstat __P((Char *, struct stat *, glob_t *));
-static DIR     *g_opendir __P((Char *, glob_t *));
-static Char    *g_strchr __P((Char *, int));
-#ifdef notdef
-static Char    *g_strcat __P((Char *, const Char *));
-#endif
-static int      g_stat __P((Char *, struct stat *, glob_t *));
-static int      glob0 __P((const Char *, glob_t *, int *));
-static int      glob1 __P((Char *, glob_t *, int *));
-static int      glob2 __P((Char *, Char *, Char *, Char *, glob_t *, int *));
-static int      glob3 __P((Char *, Char *, Char *, Char *, Char *, glob_t *, int *));
-static int      globextend __P((const Char *, glob_t *, int *));
-static const Char *    
-                globtilde __P((const Char *, Char *, size_t, glob_t *));
-static int      globexp1 __P((const Char *, glob_t *, int *));
-static int      globexp2 __P((const Char *, const Char *, glob_t *, int *, int *));
-static int      match __P((Char *, Char *, Char *));
-#ifdef DEBUG
-static void     qprintf __P((const char *, Char *));
-#endif
-
-int
-glob(pattern, flags, errfunc, pglob)
-       const char *pattern;
-       int flags, (*errfunc) __P((const char *, int));
-       glob_t *pglob;
-{
-       const u_char *patnext;
-       int c, limit;
-       Char *bufnext, *bufend, patbuf[MAXPATHLEN];
-
-       patnext = (u_char *) pattern;
-       if (!(flags & GLOB_APPEND)) {
-               pglob->gl_pathc = 0;
-               pglob->gl_pathv = NULL;
-               if (!(flags & GLOB_DOOFFS))
-                       pglob->gl_offs = 0;
-       }
-#if !defined(GLOB_MAXPATH)
-#define GLOB_MAXPATH 0x1000
-#endif
-       if (flags & GLOB_MAXPATH)
-               limit = pglob->gl_matchc;
-       else
-               limit = 0;
-       pglob->gl_flags = flags & ~GLOB_MAGCHAR;
-       pglob->gl_errfunc = errfunc;
-       pglob->gl_matchc = 0;
-
-       bufnext = patbuf;
-       bufend = bufnext + MAXPATHLEN - 1;
-       if (flags & GLOB_QUOTE) {
-               /* Protect the quoted characters. */
-               while (bufnext < bufend && (c = *patnext++) != EOS)
-                       if (c == QUOTE) {
-                               if ((c = *patnext++) == EOS) {
-                                       c = QUOTE;
-                                       --patnext;
-                               }
-                               *bufnext++ = c | M_PROTECT;
-                       }
-                       else
-                               *bufnext++ = c;
-       }
-       else
-           while (bufnext < bufend && (c = *patnext++) != EOS)
-                   *bufnext++ = c;
-       *bufnext = EOS;
-
-       if (flags & GLOB_BRACE)
-           return globexp1(patbuf, pglob, &limit);
-       else
-           return glob0(patbuf, pglob, &limit);
-}
-
-/*
- * Expand recursively a glob {} pattern. When there is no more expansion
- * invoke the standard globbing routine to glob the rest of the magic
- * characters
- */
-static int
-globexp1(pattern, pglob, limit)
-       const Char *pattern;
-       glob_t *pglob;
-       int *limit;
-{
-       const Char* ptr = pattern;
-       int rv;
-
-       /* Protect a single {}, for find(1), like csh */
-       if (pattern[0] == LBRACE && pattern[1] == RBRACE && pattern[2] == EOS)
-               return glob0(pattern, pglob, limit);
-
-       while ((ptr = (const Char *) g_strchr((Char *) ptr, LBRACE)) != NULL)
-               if (!globexp2(ptr, pattern, pglob, &rv, limit))
-                       return rv;
-
-       return glob0(pattern, pglob, limit);
-}
-
-
-/*
- * Recursive brace globbing helper. Tries to expand a single brace.
- * If it succeeds then it invokes globexp1 with the new pattern.
- * If it fails then it tries to glob the rest of the pattern and returns.
- */
-static int
-globexp2(ptr, pattern, pglob, rv, limit)
-       const Char *ptr, *pattern;
-       glob_t *pglob;
-       int *rv, *limit;
-{
-       int     i;
-       Char   *lm, *ls;
-       const Char *pe, *pm, *pl;
-       Char    patbuf[MAXPATHLEN];
-
-       /* copy part up to the brace */
-       for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++)
-               continue;
-       *lm = EOS;
-       ls = lm;
-
-       /* Find the balanced brace */
-       for (i = 0, pe = ++ptr; *pe; pe++)
-               if (*pe == LBRACKET) {
-                       /* Ignore everything between [] */
-                       for (pm = pe++; *pe != RBRACKET && *pe != EOS; pe++)
-                               continue;
-                       if (*pe == EOS) {
-                               /*
-                                * We could not find a matching RBRACKET.
-                                * Ignore and just look for RBRACE
-                                */
-                               pe = pm;
-                       }
-               }
-               else if (*pe == LBRACE)
-                       i++;
-               else if (*pe == RBRACE) {
-                       if (i == 0)
-                               break;
-                       i--;
-               }
-
-       /* Non matching braces; just glob the pattern */
-       if (i != 0 || *pe == EOS) {
-               *rv = glob0(patbuf, pglob, limit);
-               return 0;
-       }
-
-       for (i = 0, pl = pm = ptr; pm <= pe; pm++)
-               switch (*pm) {
-               case LBRACKET:
-                       /* Ignore everything between [] */
-                       for (pl = pm++; *pm != RBRACKET && *pm != EOS; pm++)
-                               continue;
-                       if (*pm == EOS) {
-                               /*
-                                * We could not find a matching RBRACKET.
-                                * Ignore and just look for RBRACE
-                                */
-                               pm = pl;
-                       }
-                       break;
-
-               case LBRACE:
-                       i++;
-                       break;
-
-               case RBRACE:
-                       if (i) {
-                           i--;
-                           break;
-                       }
-                       /* FALLTHROUGH */
-               case COMMA:
-                       if (i && *pm == COMMA)
-                               break;
-                       else {
-                               /* Append the current string */
-                               for (lm = ls; (pl < pm); *lm++ = *pl++)
-                                       continue;
-                               /*
-                                * Append the rest of the pattern after the
-                                * closing brace
-                                */
-                               for (pl = pe + 1; (*lm++ = *pl++) != EOS;)
-                                       continue;
-
-                               /* Expand the current pattern */
-#ifdef DEBUG
-                               qprintf("globexp2:", patbuf);
-#endif
-                               *rv = globexp1(patbuf, pglob, limit);
-
-                               /* move after the comma, to the next string */
-                               pl = pm + 1;
-                       }
-                       break;
-
-               default:
-                       break;
-               }
-       *rv = 0;
-       return 0;
-}
-
-
-
-/*
- * expand tilde from the passwd file.
- */
-static const Char *
-globtilde(pattern, patbuf, patbuf_len, pglob)
-       const Char *pattern;
-       Char *patbuf;
-       size_t patbuf_len;
-       glob_t *pglob;
-{
-       struct passwd *pwd;
-       char *h;
-       const Char *p;
-       Char *b, *eb;
-
-       if (*pattern != TILDE || !(pglob->gl_flags & GLOB_TILDE))
-               return pattern;
-
-       /* 
-        * Copy up to the end of the string or / 
-        */
-       eb = &patbuf[patbuf_len - 1];
-       for (p = pattern + 1, h = (char *) patbuf;
-           h < (char *)eb && *p && *p != SLASH; *h++ = *p++)
-               continue;
-
-       *h = EOS;
-
-       if (((char *) patbuf)[0] == EOS) {
-               /*
-                * handle a plain ~ or ~/ by expanding $HOME first (iff
-                * we're not running setuid or setgid) and then trying
-                * the password file
-                */
-               if (
-#if 0
-#ifndef        __NETBSD_SYSCALLS
-                   issetugid() != 0 ||
-#endif
-#endif
-                   (h = getenv("HOME")) == NULL) {
-                       if (((h = getlogin()) != NULL &&
-                            (pwd = getpwnam(h)) != NULL) ||
-                           (pwd = getpwuid(getuid())) != NULL)
-                               h = pwd->pw_dir;
-                       else
-                               return pattern;
-               }
-       }
-       else {
-               /*
-                * Expand a ~user
-                */
-               if ((pwd = getpwnam((char*) patbuf)) == NULL)
-                       return pattern;
-               else
-                       h = pwd->pw_dir;
-       }
-
-       /* Copy the home directory */
-       for (b = patbuf; b < eb && *h; *b++ = *h++)
-               continue;
-
-       /* Append the rest of the pattern */
-       while (b < eb && (*b++ = *p++) != EOS)
-               continue;
-       *b = EOS;
-
-       return patbuf;
-}
-
-
-/*
- * The main glob() routine: compiles the pattern (optionally processing
- * quotes), calls glob1() to do the real pattern matching, and finally
- * sorts the list (unless unsorted operation is requested).  Returns 0
- * if things went well, nonzero if errors occurred.  It is not an error
- * to find no matches.
- */
-static int
-glob0(pattern, pglob, limit)
-       const Char *pattern;
-       glob_t *pglob;
-       int *limit;
-{
-       const Char *qpatnext;
-       int c, err, oldpathc;
-       Char *bufnext, patbuf[MAXPATHLEN];
-
-       qpatnext = globtilde(pattern, patbuf, MAXPATHLEN, pglob);
-       oldpathc = pglob->gl_pathc;
-       bufnext = patbuf;
-
-       /* We don't need to check for buffer overflow any more. */
-       while ((c = *qpatnext++) != EOS) {
-               switch (c) {
-               case LBRACKET:
-                       c = *qpatnext;
-                       if (c == NOT)
-                               ++qpatnext;
-                       if (*qpatnext == EOS ||
-                           g_strchr((Char *) qpatnext+1, RBRACKET) == NULL) {
-                               *bufnext++ = LBRACKET;
-                               if (c == NOT)
-                                       --qpatnext;
-                               break;
-                       }
-                       *bufnext++ = M_SET;
-                       if (c == NOT)
-                               *bufnext++ = M_NOT;
-                       c = *qpatnext++;
-                       do {
-                               *bufnext++ = CHAR(c);
-                               if (*qpatnext == RANGE &&
-                                   (c = qpatnext[1]) != RBRACKET) {
-                                       *bufnext++ = M_RNG;
-                                       *bufnext++ = CHAR(c);
-                                       qpatnext += 2;
-                               }
-                       } while ((c = *qpatnext++) != RBRACKET);
-                       pglob->gl_flags |= GLOB_MAGCHAR;
-                       *bufnext++ = M_END;
-                       break;
-               case QUESTION:
-                       pglob->gl_flags |= GLOB_MAGCHAR;
-                       *bufnext++ = M_ONE;
-                       break;
-               case STAR:
-                       pglob->gl_flags |= GLOB_MAGCHAR;
-                       /* collapse adjacent stars to one,
-                        * to avoid exponential behavior
-                        */
-                       if (bufnext == patbuf || bufnext[-1] != M_ALL)
-                           *bufnext++ = M_ALL;
-                       break;
-               default:
-                       *bufnext++ = CHAR(c);
-                       break;
-               }
-       }
-       *bufnext = EOS;
-#ifdef DEBUG
-       qprintf("glob0:", patbuf);
-#endif
-
-       if ((err = glob1(patbuf, pglob, limit)) != 0)
-               return(err);
-
-       /*
-        * If there was no match we are going to append the pattern
-        * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified
-        * and the pattern did not contain any magic characters
-        * GLOB_NOMAGIC is there just for compatibility with csh.
-        */
-       if (pglob->gl_pathc == oldpathc &&
-           ((pglob->gl_flags & GLOB_NOCHECK) ||
-             ((pglob->gl_flags & GLOB_NOMAGIC) &&
-              !(pglob->gl_flags & GLOB_MAGCHAR))))
-               return(globextend(pattern, pglob, limit));
-       else if (!(pglob->gl_flags & GLOB_NOSORT))
-               qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc,
-                   pglob->gl_pathc - oldpathc, sizeof(char *), compare);
-       return(0);
-}
-
-static int
-compare(p, q)
-       const void *p, *q;
-{
-       return(strcmp(*(char **)p, *(char **)q));
-}
-
-static int
-glob1(pattern, pglob, limit)
-       Char *pattern;
-       glob_t *pglob;
-       int *limit;
-{
-       Char pathbuf[MAXPATHLEN];
-
-       /* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */
-       if (*pattern == EOS)
-               return(0);
-       return(glob2(pathbuf, pathbuf, pathbuf + MAXPATHLEN - 1,
-           pattern, pglob, limit));
-}
-
-/*
- * The functions glob2 and glob3 are mutually recursive; there is one level
- * of recursion for each segment in the pattern that contains one or more
- * meta characters.
- */
-static int
-glob2(pathbuf, pathend, pathend_last, pattern, pglob, limit)
-       Char *pathbuf, *pathend, *pathend_last, *pattern;
-       glob_t *pglob;
-       int *limit;
-{
-       struct stat sb;
-       Char *p, *q;
-       int anymeta;
-
-       /*
-        * Loop over pattern segments until end of pattern or until
-        * segment with meta character found.
-        */
-       for (anymeta = 0;;) {
-               if (*pattern == EOS) {          /* End of pattern? */
-                       *pathend = EOS;
-                       if (g_lstat(pathbuf, &sb, pglob))
-                               return(0);
-
-                       if (((pglob->gl_flags & GLOB_MARK) &&
-                           pathend[-1] != SEP) && (S_ISDIR(sb.st_mode)
-                           || (S_ISLNK(sb.st_mode) &&
-                           (g_stat(pathbuf, &sb, pglob) == 0) &&
-                           S_ISDIR(sb.st_mode)))) {
-                               if (pathend + 1 > pathend_last)
-                                       return (1);
-                               *pathend++ = SEP;
-                               *pathend = EOS;
-                       }
-                       ++pglob->gl_matchc;
-                       return(globextend(pathbuf, pglob, limit));
-               }
-
-               /* Find end of next segment, copy tentatively to pathend. */
-               q = pathend;
-               p = pattern;
-               while (*p != EOS && *p != SEP) {
-                       if (ismeta(*p))
-                               anymeta = 1;
-                       if (q + 1 > pathend_last)
-                               return (1);
-                       *q++ = *p++;
-               }
-
-               if (!anymeta) {         /* No expansion, do next segment. */
-                       pathend = q;
-                       pattern = p;
-                       while (*pattern == SEP) {
-                               if (pathend + 1 > pathend_last)
-                                       return (1);
-                               *pathend++ = *pattern++;
-                       }
-               } else                  /* Need expansion, recurse. */
-                       return(glob3(pathbuf, pathend, pathend_last, pattern, p,
-                           pglob, limit));
-       }
-       /* NOTREACHED */
-}
-
-static int
-glob3(pathbuf, pathend, pathend_last, pattern, restpattern, pglob, limit)
-       Char *pathbuf, *pathend, *pathend_last, *pattern, *restpattern;
-       glob_t *pglob;
-       int *limit;
-{
-       register struct dirent *dp;
-       DIR *dirp;
-       int err;
-       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)();
-
-       if (pathend > pathend_last)
-               return (1);
-       *pathend = EOS;
-       errno = 0;
-
-       if ((dirp = g_opendir(pathbuf, pglob)) == NULL) {
-               /* TODO: don't call for ENOENT or ENOTDIR? */
-               if (pglob->gl_errfunc) {
-                       if (g_Ctoc(pathbuf, buf, sizeof(buf)))
-                               return (GLOB_ABEND);
-                       if (pglob->gl_errfunc(buf, errno) ||
-                           pglob->gl_flags & GLOB_ERR)
-                               return (GLOB_ABEND);
-               }
-               return(0);
-       }
-
-       err = 0;
-
-       /* Search directory for matching names. */
-       if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-               readdirfunc = pglob->gl_readdir;
-       else
-               readdirfunc = readdir;
-       while ((dp = (*readdirfunc)(dirp))) {
-               register u_char *sc;
-               register Char *dc;
-
-               /* Initial DOT must be matched literally. */
-               if (dp->d_name[0] == DOT && *pattern != DOT)
-                       continue;
-               dc = pathend;
-               sc = (u_char *) dp->d_name;
-               while (dc < pathend_last && (*dc++ = *sc++) != EOS)
-                       ;
-               if (!match(pathend, pattern, restpattern)) {
-                       *pathend = EOS;
-                       continue;
-               }
-               err = glob2(pathbuf, --dc, pathend_last, restpattern,
-                   pglob, limit);
-               if (err)
-                       break;
-       }
-
-       if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-               (*pglob->gl_closedir)(dirp);
-       else
-               closedir(dirp);
-       return(err);
-}
-
-
-/*
- * Extend the gl_pathv member of a glob_t structure to accomodate a new item,
- * add the new item, and update gl_pathc.
- *
- * This assumes the BSD realloc, which only copies the block when its size
- * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic
- * behavior.
- *
- * Return 0 if new item added, error code if memory couldn't be allocated.
- *
- * Invariant of the glob_t structure:
- *     Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and
- *     gl_pathv points to (gl_offs + gl_pathc + 1) items.
- */
-static int
-globextend(path, pglob, limit)
-       const Char *path;
-       glob_t *pglob;
-       int *limit;
-{
-       register char **pathv;
-       register int i;
-       u_int newsize, len;
-       char *copy;
-       const Char *p;
-
-       if (*limit && pglob->gl_pathc > *limit)
-#if !defined(GLOB_LIMIT)
-#define GLOB_LIMIT (-3)
-#endif
-               return (GLOB_LIMIT);
-
-       newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs);
-       pathv = pglob->gl_pathv ?
-                   realloc((char *)pglob->gl_pathv, newsize) :
-                   malloc(newsize);
-       if (pathv == NULL) {
-               if (pglob->gl_pathv) {
-                       free(pglob->gl_pathv);
-                       pglob->gl_pathv = NULL;
-               }
-               return(GLOB_NOSPACE);
-       }
-
-       if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) {
-               /* first time around -- clear initial gl_offs items */
-               pathv += pglob->gl_offs;
-               for (i = pglob->gl_offs; --i >= 0; )
-                       *--pathv = NULL;
-       }
-       pglob->gl_pathv = pathv;
-
-       for (p = path; *p++;)
-               continue;
-       len = (size_t)(p - path);
-       if ((copy = malloc(len)) != NULL) {
-               if (g_Ctoc(path, copy, len)) {
-                       free(copy);
-                       return (GLOB_NOSPACE);
-               }
-               pathv[pglob->gl_offs + pglob->gl_pathc++] = copy;
-       }
-       pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
-       return(copy == NULL ? GLOB_NOSPACE : 0);
-}
-
-/*
- * pattern matching function for filenames.  Each occurrence of the *
- * pattern causes a recursion level.
- */
-static int
-match(name, pat, patend)
-       register Char *name, *pat, *patend;
-{
-       int ok, negate_range;
-       Char c, k;
-
-       while (pat < patend) {
-               c = *pat++;
-               switch (c & M_MASK) {
-               case M_ALL:
-                       if (pat == patend)
-                               return(1);
-                       do
-                           if (match(name, pat, patend))
-                                   return(1);
-                       while (*name++ != EOS);
-                       return(0);
-               case M_ONE:
-                       if (*name++ == EOS)
-                               return(0);
-                       break;
-               case M_SET:
-                       ok = 0;
-                       if ((k = *name++) == EOS)
-                               return(0);
-                       if ((negate_range = ((*pat & M_MASK) == M_NOT)) != EOS)
-                               ++pat;
-                       while (((c = *pat++) & M_MASK) != M_END)
-                               if ((*pat & M_MASK) == M_RNG) {
-                                if (c <= k && k <= pat[1])
-                                        ok = 1;
-                                pat += 2;
-                               } else if (c == k)
-                                       ok = 1;
-                       if (ok == negate_range)
-                               return(0);
-                       break;
-               default:
-                       if (*name++ != c)
-                               return(0);
-                       break;
-               }
-       }
-       return(*name == EOS);
-}
-
-/* Free allocated data belonging to a glob_t structure. */
-void
-globfree(pglob)
-       glob_t *pglob;
-{
-       register int i;
-       register char **pp;
-
-       if (pglob->gl_pathv != NULL) {
-               pp = pglob->gl_pathv + pglob->gl_offs;
-               for (i = pglob->gl_pathc; i--; ++pp)
-                       if (*pp)
-                               free(*pp);
-               free(pglob->gl_pathv);
-               pglob->gl_pathv = NULL;
-       }
-}
-
-static DIR *
-g_opendir(str, pglob)
-       register Char *str;
-       glob_t *pglob;
-{
-       char buf[MAXPATHLEN];
-
-       if (!*str)
-               strcpy(buf, ".");
-       else {
-               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
-g_lstat(fn, sb, pglob)
-       register Char *fn;
-       struct stat *sb;
-       glob_t *pglob;
-{
-       char buf[MAXPATHLEN];
-
-       if (g_Ctoc(fn, buf, sizeof(buf))) {
-               errno = ENAMETOOLONG;
-               return (-1);
-       }
-       if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-               return((*pglob->gl_lstat)(buf, sb));
-       return(lstat(buf, sb));
-}
-
-static int
-g_stat(fn, sb, pglob)
-       register Char *fn;
-       struct stat *sb;
-       glob_t *pglob;
-{
-       char buf[MAXPATHLEN];
-
-       if (g_Ctoc(fn, buf, sizeof(buf))) {
-               errno = ENAMETOOLONG;
-               return (-1);
-       }
-       if (pglob->gl_flags & GLOB_ALTDIRFUNC)
-               return((*pglob->gl_stat)(buf, sb));
-       return(stat(buf, sb));
-}
-
-static Char *
-g_strchr(str, ch)
-       Char *str;
-       int ch;
-{
-       do {
-               if (*str == ch)
-                       return (str);
-       } while (*str++);
-       return (NULL);
-}
-
-static int
-g_Ctoc(str, buf, len)
-       const Char *str;
-       char *buf;
-       u_int len;
-{
-
-       while (len--) {
-               if ((*buf++ = *str++) == '\0')
-                       return (0);
-       }
-       return (1);
-}
-
-#ifdef DEBUG
-static void
-qprintf(str, s)
-       const char *str;
-       register Char *s;
-{
-       register Char *p;
-
-       (void)printf("%s:\n", str);
-       for (p = s; *p; p++)
-               (void)printf("%c", CHAR(*p));
-       (void)printf("\n");
-       for (p = s; *p; p++)
-               (void)printf("%c", *p & M_PROTECT ? '"' : ' ');
-       (void)printf("\n");
-       for (p = s; *p; p++)
-               (void)printf("%c", ismeta(*p) ? '_' : ' ');
-       (void)printf("\n");
-}
-#endif