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Annotation of src/lib/libc/gen/glob.c, Revision 1.2

1.1       cgd         1: /*
                      2:  * Copyright (c) 1989 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * This code is derived from software contributed to Berkeley by
                      6:  * Guido van Rossum.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *     This product includes software developed by the University of
                     19:  *     California, Berkeley and its contributors.
                     20:  * 4. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  */
                     36:
                     37: #if defined(LIBC_SCCS) && !defined(lint)
1.2     ! mycroft    38: /*static char sccsid[] = "from: @(#)glob.c     5.18 (Berkeley) 12/4/92";*/
        !            39: static char rcsid[] = "$Id: $";
1.1       cgd        40: #endif /* LIBC_SCCS and not lint */
                     41:
                     42: /*
                     43:  * glob(3) -- a superset of the one defined in POSIX 1003.2.
                     44:  *
                     45:  * The [!...] convention to negate a range is supported (SysV, Posix, ksh).
                     46:  *
                     47:  * Optional extra services, controlled by flags not defined by POSIX:
                     48:  *
                     49:  * GLOB_QUOTE:
                     50:  *     Escaping convention: \ inhibits any special meaning the following
                     51:  *     character might have (except \ at end of string is retained).
                     52:  * GLOB_MAGCHAR:
                     53:  *     Set in gl_flags if pattern contained a globbing character.
1.2     ! mycroft    54:  * GLOB_NOMAGIC:
        !            55:  *     Same as GLOB_NOCHECK, but it will only append pattern if it did
        !            56:  *     not contain any magic characters.  [Used in csh style globbing]
        !            57:  * GLOB_ALTDIRFUNC:
        !            58:  *     Use alternately specified directory access functions.
1.1       cgd        59:  * gl_matchc:
                     60:  *     Number of matches in the current invocation of glob.
                     61:  */
                     62:
                     63: #include <sys/param.h>
                     64: #include <sys/stat.h>
                     65: #include <dirent.h>
                     66: #include <glob.h>
                     67: #include <ctype.h>
                     68: #include <errno.h>
                     69: #include <string.h>
                     70: #include <stdio.h>
                     71: #include <stdlib.h>
                     72:
                     73: #define        DOLLAR          '$'
                     74: #define        DOT             '.'
                     75: #define        EOS             '\0'
                     76: #define        LBRACKET        '['
                     77: #define        NOT             '!'
                     78: #define        QUESTION        '?'
                     79: #define        QUOTE           '\\'
                     80: #define        RANGE           '-'
                     81: #define        RBRACKET        ']'
                     82: #define        SEP             '/'
                     83: #define        STAR            '*'
                     84: #define        TILDE           '~'
                     85: #define        UNDERSCORE      '_'
                     86:
                     87: #define        M_QUOTE         0x8000
                     88: #define        M_PROTECT       0x4000
                     89: #define        M_MASK          0xffff
                     90: #define        M_ASCII         0x00ff
                     91:
                     92: #define        CHAR(c)         ((c)&M_ASCII)
                     93: #define        META(c)         ((c)|M_QUOTE)
                     94: #define        M_ALL           META('*')
                     95: #define        M_END           META(']')
                     96: #define        M_NOT           META('!')
                     97: #define        M_ONE           META('?')
                     98: #define        M_RNG           META('-')
                     99: #define        M_SET           META('[')
                    100: #define        ismeta(c)       (((c)&M_QUOTE) != 0)
                    101:
                    102: typedef u_short Char;
                    103:
                    104: static int      compare __P((const void *, const void *));
                    105: static void     g_Ctoc __P((Char *, char *));
1.2     ! mycroft   106: static int      g_lstat __P((Char *, struct stat *, glob_t *));
        !           107: static DIR     *g_opendir __P((Char *, glob_t *));
1.1       cgd       108: static Char    *g_strchr __P((Char *, int));
1.2     ! mycroft   109: static int      g_stat __P((Char *, struct stat *, glob_t *));
1.1       cgd       110: static int      glob1 __P((Char *, glob_t *));
                    111: static int      glob2 __P((Char *, Char *, Char *, glob_t *));
                    112: static int      glob3 __P((Char *, Char *, Char *, Char *, glob_t *));
                    113: static int      globextend __P((Char *, glob_t *));
                    114: static int      match __P((Char *, Char *, Char *));
                    115: #ifdef DEBUG
                    116: static void     qprintf __P((Char *));
                    117: #endif
                    118:
                    119: /*
                    120:  * The main glob() routine: compiles the pattern (optionally processing
                    121:  * quotes), calls glob1() to do the real pattern matching, and finally
                    122:  * sorts the list (unless unsorted operation is requested).  Returns 0
                    123:  * if things went well, nonzero if errors occurred.  It is not an error
                    124:  * to find no matches.
                    125:  */
                    126: glob(pattern, flags, errfunc, pglob)
                    127:        const char *pattern;
                    128:        int flags, (*errfunc) __P((char *, int));
                    129:        glob_t *pglob;
                    130: {
                    131:        const u_char *compilepat, *patnext;
                    132:        int c, err, oldpathc;
                    133:        Char *bufnext, *bufend, *compilebuf, *qpatnext, patbuf[MAXPATHLEN+1];
                    134:
                    135:        patnext = (u_char *) pattern;
                    136:        if (!(flags & GLOB_APPEND)) {
                    137:                pglob->gl_pathc = 0;
                    138:                pglob->gl_pathv = NULL;
                    139:                if (!(flags & GLOB_DOOFFS))
                    140:                        pglob->gl_offs = 0;
                    141:        }
                    142:        pglob->gl_flags = flags & ~GLOB_MAGCHAR;
                    143:        pglob->gl_errfunc = errfunc;
                    144:        oldpathc = pglob->gl_pathc;
                    145:        pglob->gl_matchc = 0;
                    146:
                    147:        bufnext = patbuf;
                    148:        bufend = bufnext + MAXPATHLEN;
                    149:        compilebuf = bufnext;
                    150:        compilepat = patnext;
                    151:        if (flags & GLOB_QUOTE) {
                    152:                /* Protect the quoted characters. */
                    153:                while (bufnext < bufend && (c = *patnext++) != EOS)
                    154:                        if (c == QUOTE) {
                    155:                                if ((c = *patnext++) == EOS) {
                    156:                                        c = QUOTE;
                    157:                                        --patnext;
                    158:                                }
                    159:                                *bufnext++ = c | M_PROTECT;
                    160:                        }
                    161:                        else
                    162:                                *bufnext++ = c;
                    163:        }
                    164:        else
                    165:            while (bufnext < bufend && (c = *patnext++) != EOS)
                    166:                    *bufnext++ = c;
                    167:        *bufnext = EOS;
                    168:
                    169:        bufnext = patbuf;
                    170:        qpatnext = patbuf;
                    171:        /* We don't need to check for buffer overflow any more. */
                    172:        while ((c = *qpatnext++) != EOS) {
                    173:                switch (c) {
                    174:                case LBRACKET:
                    175:                        c = *qpatnext;
                    176:                        if (c == NOT)
                    177:                                ++qpatnext;
                    178:                        if (*qpatnext == EOS ||
                    179:                            g_strchr(qpatnext+1, RBRACKET) == NULL) {
                    180:                                *bufnext++ = LBRACKET;
                    181:                                if (c == NOT)
                    182:                                        --qpatnext;
                    183:                                break;
                    184:                        }
                    185:                        *bufnext++ = M_SET;
                    186:                        if (c == NOT)
                    187:                                *bufnext++ = M_NOT;
                    188:                        c = *qpatnext++;
                    189:                        do {
                    190:                                *bufnext++ = CHAR(c);
                    191:                                if (*qpatnext == RANGE &&
                    192:                                    (c = qpatnext[1]) != RBRACKET) {
                    193:                                        *bufnext++ = M_RNG;
                    194:                                        *bufnext++ = CHAR(c);
                    195:                                        qpatnext += 2;
                    196:                                }
                    197:                        } while ((c = *qpatnext++) != RBRACKET);
1.2     ! mycroft   198:                        pglob->gl_flags |= GLOB_MAGCHAR;
1.1       cgd       199:                        *bufnext++ = M_END;
                    200:                        break;
                    201:                case QUESTION:
                    202:                        pglob->gl_flags |= GLOB_MAGCHAR;
                    203:                        *bufnext++ = M_ONE;
                    204:                        break;
                    205:                case STAR:
                    206:                        pglob->gl_flags |= GLOB_MAGCHAR;
1.2     ! mycroft   207:                        /* collapse adjacent stars to one,
        !           208:                         * to avoid exponential behavior
        !           209:                         */
        !           210:                        if (bufnext == patbuf || bufnext[-1] != M_ALL)
        !           211:                            *bufnext++ = M_ALL;
1.1       cgd       212:                        break;
                    213:                default:
                    214:                        *bufnext++ = CHAR(c);
                    215:                        break;
                    216:                }
                    217:        }
                    218:        *bufnext = EOS;
                    219: #ifdef DEBUG
                    220:        qprintf(patbuf);
                    221: #endif
                    222:
                    223:        if ((err = glob1(patbuf, pglob)) != 0)
                    224:                return(err);
                    225:
1.2     ! mycroft   226:        /*
        !           227:         * If there was no match we are going to append the pattern
        !           228:         * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified
        !           229:         * and the pattern did not contain any magic characters
        !           230:         * GLOB_NOMAGIC is there just for compatibility with csh.
        !           231:         */
        !           232:        if (pglob->gl_pathc == oldpathc &&
        !           233:            ((flags & GLOB_NOCHECK) ||
        !           234:             ((flags & GLOB_NOMAGIC) && !(pglob->gl_flags & GLOB_MAGCHAR)))) {
1.1       cgd       235:                if (!(flags & GLOB_QUOTE)) {
                    236:                        Char *dp = compilebuf;
                    237:                        const u_char *sp = compilepat;
                    238:                        while (*dp++ = *sp++);
                    239:                }
                    240:                else {
                    241:                        /*
                    242:                         * Copy pattern, interpreting quotes; this is slightly
                    243:                         * different than the interpretation of quotes above
                    244:                         * -- which should prevail?
                    245:                         */
                    246:                        while (*compilepat != EOS) {
                    247:                                if (*compilepat == QUOTE) {
                    248:                                        if (*++compilepat == EOS)
                    249:                                                --compilepat;
                    250:                                }
                    251:                                *compilebuf++ = (u_char)*compilepat++;
                    252:                        }
                    253:                        *compilebuf = EOS;
                    254:                }
                    255:                return(globextend(patbuf, pglob));
                    256:        } else if (!(flags & GLOB_NOSORT))
                    257:                qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc,
                    258:                    pglob->gl_pathc - oldpathc, sizeof(char *), compare);
                    259:        return(0);
                    260: }
                    261:
                    262: static int
                    263: compare(p, q)
                    264:        const void *p, *q;
                    265: {
                    266:        return(strcmp(*(char **)p, *(char **)q));
                    267: }
                    268:
                    269: static
                    270: glob1(pattern, pglob)
                    271:        Char *pattern;
                    272:        glob_t *pglob;
                    273: {
                    274:        Char pathbuf[MAXPATHLEN+1];
                    275:
                    276:        /* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */
                    277:        if (*pattern == EOS)
                    278:                return(0);
                    279:        return(glob2(pathbuf, pathbuf, pattern, pglob));
                    280: }
                    281:
                    282: /*
                    283:  * The functions glob2 and glob3 are mutually recursive; there is one level
                    284:  * of recursion for each segment in the pattern that contains one or more
                    285:  * meta characters.
                    286:  */
                    287: static
                    288: glob2(pathbuf, pathend, pattern, pglob)
                    289:        Char *pathbuf, *pathend, *pattern;
                    290:        glob_t *pglob;
                    291: {
                    292:        struct stat sb;
                    293:        Char *p, *q;
                    294:        int anymeta;
                    295:
                    296:        /*
                    297:         * Loop over pattern segments until end of pattern or until
                    298:         * segment with meta character found.
                    299:         */
                    300:        for (anymeta = 0;;) {
                    301:                if (*pattern == EOS) {          /* End of pattern? */
                    302:                        *pathend = EOS;
1.2     ! mycroft   303:                        if (g_lstat(pathbuf, &sb, pglob))
1.1       cgd       304:                                return(0);
                    305:
                    306:                        if (((pglob->gl_flags & GLOB_MARK) &&
                    307:                            pathend[-1] != SEP) && (S_ISDIR(sb.st_mode)
                    308:                            || (S_ISLNK(sb.st_mode) &&
1.2     ! mycroft   309:                            (g_stat(pathbuf, &sb, pglob) == 0) &&
1.1       cgd       310:                            S_ISDIR(sb.st_mode)))) {
                    311:                                *pathend++ = SEP;
                    312:                                *pathend = EOS;
                    313:                        }
                    314:                        ++pglob->gl_matchc;
                    315:                        return(globextend(pathbuf, pglob));
                    316:                }
                    317:
                    318:                /* Find end of next segment, copy tentatively to pathend. */
                    319:                q = pathend;
                    320:                p = pattern;
                    321:                while (*p != EOS && *p != SEP) {
                    322:                        if (ismeta(*p))
                    323:                                anymeta = 1;
                    324:                        *q++ = *p++;
                    325:                }
                    326:
                    327:                if (!anymeta) {         /* No expansion, do next segment. */
                    328:                        pathend = q;
                    329:                        pattern = p;
                    330:                        while (*pattern == SEP)
                    331:                                *pathend++ = *pattern++;
                    332:                } else                  /* Need expansion, recurse. */
                    333:                        return(glob3(pathbuf, pathend, pattern, p, pglob));
                    334:        }
                    335:        /* NOTREACHED */
                    336: }
                    337:
                    338: static
                    339: glob3(pathbuf, pathend, pattern, restpattern, pglob)
                    340:        Char *pathbuf, *pathend, *pattern, *restpattern;
                    341:        glob_t *pglob;
                    342: {
                    343:        register struct dirent *dp;
1.2     ! mycroft   344:        struct dirent *(*readdirfunc)();
1.1       cgd       345:        DIR *dirp;
                    346:        int len, err;
1.2     ! mycroft   347:        char buf[MAXPATHLEN];
1.1       cgd       348:
                    349:        *pathend = EOS;
                    350:        errno = 0;
                    351:
1.2     ! mycroft   352:        if ((dirp = g_opendir(pathbuf, pglob)) == NULL) {
1.1       cgd       353:                /* TODO: don't call for ENOENT or ENOTDIR? */
1.2     ! mycroft   354:                if (pglob->gl_errfunc) {
        !           355:                        g_Ctoc(pathbuf, buf);
        !           356:                        if (pglob->gl_errfunc(buf, errno) ||
        !           357:                            pglob->gl_flags & GLOB_ERR)
        !           358:                                return (GLOB_ABEND);
        !           359:                }
        !           360:                return(0);
        !           361:        }
1.1       cgd       362:
                    363:        err = 0;
                    364:
                    365:        /* Search directory for matching names. */
1.2     ! mycroft   366:        if (pglob->gl_flags & GLOB_ALTDIRFUNC)
        !           367:                readdirfunc = pglob->gl_readdir;
        !           368:        else
        !           369:                readdirfunc = readdir;
        !           370:        while ((dp = (*readdirfunc)(dirp))) {
1.1       cgd       371:                register u_char *sc;
                    372:                register Char *dc;
                    373:
                    374:                /* Initial DOT must be matched literally. */
                    375:                if (dp->d_name[0] == DOT && *pattern != DOT)
                    376:                        continue;
                    377:                for (sc = (u_char *) dp->d_name, dc = pathend;
                    378:                     *dc++ = *sc++;);
                    379:                if (!match(pathend, pattern, restpattern)) {
                    380:                        *pathend = EOS;
                    381:                        continue;
                    382:                }
                    383:                err = glob2(pathbuf, --dc, restpattern, pglob);
                    384:                if (err)
                    385:                        break;
                    386:        }
                    387:
1.2     ! mycroft   388:        if (pglob->gl_flags & GLOB_ALTDIRFUNC)
        !           389:                (*pglob->gl_closedir)(dirp);
        !           390:        else
        !           391:                closedir(dirp);
1.1       cgd       392:        return(err);
                    393: }
                    394:
                    395:
                    396: /*
                    397:  * Extend the gl_pathv member of a glob_t structure to accomodate a new item,
                    398:  * add the new item, and update gl_pathc.
                    399:  *
                    400:  * This assumes the BSD realloc, which only copies the block when its size
                    401:  * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic
                    402:  * behavior.
                    403:  *
                    404:  * Return 0 if new item added, error code if memory couldn't be allocated.
                    405:  *
                    406:  * Invariant of the glob_t structure:
                    407:  *     Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and
                    408:  *     gl_pathv points to (gl_offs + gl_pathc + 1) items.
                    409:  */
                    410: static int
                    411: globextend(path, pglob)
                    412:        Char *path;
                    413:        glob_t *pglob;
                    414: {
                    415:        register char **pathv;
                    416:        register int i;
                    417:        u_int newsize;
                    418:        char *copy;
                    419:        Char *p;
                    420:
                    421:        newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs);
                    422:        pathv = (char **)realloc((char *)pglob->gl_pathv, newsize);
                    423:        if (pathv == NULL)
                    424:                return(GLOB_NOSPACE);
                    425:
                    426:        if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) {
                    427:                /* first time around -- clear initial gl_offs items */
                    428:                pathv += pglob->gl_offs;
                    429:                for (i = pglob->gl_offs; --i >= 0; )
                    430:                        *--pathv = NULL;
                    431:        }
                    432:        pglob->gl_pathv = pathv;
                    433:
                    434:        for (p = path; *p++;);
                    435:        if ((copy = malloc(p - path)) != NULL) {
                    436:                g_Ctoc(path, copy);
                    437:                pathv[pglob->gl_offs + pglob->gl_pathc++] = copy;
                    438:        }
                    439:        pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
                    440:        return(copy == NULL ? GLOB_NOSPACE : 0);
                    441: }
                    442:
                    443:
                    444: /*
                    445:  * pattern matching function for filenames.  Each occurrence of the *
                    446:  * pattern causes a recursion level.
                    447:  */
                    448: static
                    449: match(name, pat, patend)
                    450:        register Char *name, *pat, *patend;
                    451: {
                    452:        int ok, negate_range;
                    453:        Char c, k;
                    454:
                    455:        while (pat < patend) {
                    456:                c = *pat++;
                    457:                switch (c & M_MASK) {
                    458:                case M_ALL:
                    459:                        if (pat == patend)
                    460:                                return(1);
1.2     ! mycroft   461:                        do
        !           462:                            if (match(name, pat, patend))
        !           463:                                    return(1);
        !           464:                        while (*name++ != EOS);
1.1       cgd       465:                        return(0);
                    466:                case M_ONE:
                    467:                        if (*name++ == EOS)
                    468:                                return(0);
                    469:                        break;
                    470:                case M_SET:
                    471:                        ok = 0;
1.2     ! mycroft   472:                        if ((k = *name++) == EOS)
        !           473:                                return(0);
1.1       cgd       474:                        if (negate_range = ((*pat & M_MASK) == M_NOT))
                    475:                                ++pat;
                    476:                        while (((c = *pat++) & M_MASK) != M_END)
                    477:                                if ((*pat & M_MASK) == M_RNG) {
                    478:                                        if (c <= k && k <= pat[1])
                    479:                                                ok = 1;
                    480:                                        pat += 2;
                    481:                                } else if (c == k)
                    482:                                        ok = 1;
                    483:                        if (ok == negate_range)
                    484:                                return(0);
                    485:                        break;
                    486:                default:
                    487:                        if (*name++ != c)
                    488:                                return(0);
                    489:                        break;
                    490:                }
                    491:        }
                    492:        return(*name == EOS);
                    493: }
                    494:
                    495: /* Free allocated data belonging to a glob_t structure. */
                    496: void
                    497: globfree(pglob)
                    498:        glob_t *pglob;
                    499: {
                    500:        register int i;
                    501:        register char **pp;
                    502:
                    503:        if (pglob->gl_pathv != NULL) {
                    504:                pp = pglob->gl_pathv + pglob->gl_offs;
                    505:                for (i = pglob->gl_pathc; i--; ++pp)
                    506:                        if (*pp)
                    507:                                free(*pp);
                    508:                free(pglob->gl_pathv);
                    509:        }
                    510: }
                    511:
                    512: static DIR *
1.2     ! mycroft   513: g_opendir(str, pglob)
1.1       cgd       514:        register Char *str;
1.2     ! mycroft   515:        glob_t *pglob;
1.1       cgd       516: {
                    517:        char buf[MAXPATHLEN];
1.2     ! mycroft   518:        char *dirname;
1.1       cgd       519:
                    520:        if (!*str)
1.2     ! mycroft   521:                strcpy(buf, ".");
        !           522:        else
        !           523:                g_Ctoc(str, buf);
        !           524:        if (pglob->gl_flags & GLOB_ALTDIRFUNC)
        !           525:                return((*pglob->gl_opendir)(buf));
1.1       cgd       526:        return(opendir(buf));
                    527: }
                    528:
                    529: static int
1.2     ! mycroft   530: g_lstat(fn, sb, pglob)
1.1       cgd       531:        register Char *fn;
                    532:        struct stat *sb;
1.2     ! mycroft   533:        glob_t *pglob;
1.1       cgd       534: {
                    535:        char buf[MAXPATHLEN];
                    536:
                    537:        g_Ctoc(fn, buf);
1.2     ! mycroft   538:        if (pglob->gl_flags & GLOB_ALTDIRFUNC)
        !           539:                return((*pglob->gl_lstat)(buf, sb));
1.1       cgd       540:        return(lstat(buf, sb));
                    541: }
                    542:
                    543: static int
1.2     ! mycroft   544: g_stat(fn, sb, pglob)
1.1       cgd       545:        register Char *fn;
                    546:        struct stat *sb;
1.2     ! mycroft   547:        glob_t *pglob;
1.1       cgd       548: {
                    549:        char buf[MAXPATHLEN];
                    550:
                    551:        g_Ctoc(fn, buf);
1.2     ! mycroft   552:        if (pglob->gl_flags & GLOB_ALTDIRFUNC)
        !           553:                return((*pglob->gl_stat)(buf, sb));
1.1       cgd       554:        return(stat(buf, sb));
                    555: }
                    556:
                    557: static Char *
                    558: g_strchr(str, ch)
                    559:        Char *str;
                    560:        int ch;
                    561: {
                    562:        do {
                    563:                if (*str == ch)
                    564:                        return (str);
                    565:        } while (*str++);
                    566:        return (NULL);
                    567: }
                    568:
                    569: static void
                    570: g_Ctoc(str, buf)
                    571:        register Char *str;
                    572:        char *buf;
                    573: {
                    574:        register char *dc;
                    575:
                    576:        for (dc = buf; *dc++ = *str++;);
                    577: }
                    578:
                    579: #ifdef DEBUG
                    580: static void
                    581: qprintf(s)
                    582:        register Char *s;
                    583: {
                    584:        register Char *p;
                    585:
                    586:        for (p = s; *p; p++)
1.2     ! mycroft   587:                (void)printf("%c", CHAR(*p));
1.1       cgd       588:        (void)printf("\n");
                    589:        for (p = s; *p; p++)
                    590:                (void)printf("%c", *p & M_PROTECT ? '"' : ' ');
                    591:        (void)printf("\n");
                    592:        for (p = s; *p; p++)
1.2     ! mycroft   593:                (void)printf("%c", ismeta(*p) ? '_' : ' ');
1.1       cgd       594:        (void)printf("\n");
                    595: }
                    596: #endif

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