git: 6560ac57ce87 - main - tcsh: update to version 6.22.04.
Dmitry Chagin
dchagin at FreeBSD.org
Wed May 19 21:30:43 UTC 2021
The branch main has been updated by dchagin:
URL: https://cgit.FreeBSD.org/src/commit/?id=6560ac57ce879857203bc456cdc3849808dc0700
commit 6560ac57ce879857203bc456cdc3849808dc0700
Merge: 6190ff6104ae 174d8b60324d
Author: Dmitry Chagin <dchagin at FreeBSD.org>
AuthorDate: 2021-05-19 21:12:27 +0000
Commit: Dmitry Chagin <dchagin at FreeBSD.org>
CommitDate: 2021-05-19 21:12:27 +0000
tcsh: update to version 6.22.04.
Merge commit '174d8b60324d7e8754709f7155e13ca95220b48c' into main.
MFC After: 2 weeks
contrib/tcsh/Fixes | 1 +
contrib/tcsh/ed.chared.c | 98 ++++++++++++++++----------------
contrib/tcsh/ed.defns.c | 10 ++--
contrib/tcsh/ed.h | 10 +++-
contrib/tcsh/ed.init.c | 48 ++++++++--------
contrib/tcsh/ed.inputl.c | 20 +++----
contrib/tcsh/ed.refresh.c | 16 +++---
contrib/tcsh/ed.screen.c | 18 +++---
contrib/tcsh/ed.term.c | 34 ++++++------
contrib/tcsh/ed.term.h | 6 +-
contrib/tcsh/ed.xmap.c | 10 ++--
contrib/tcsh/gethost.c | 8 +--
contrib/tcsh/glob.c | 18 +++---
contrib/tcsh/glob.h | 2 +-
contrib/tcsh/ma.setp.c | 4 +-
contrib/tcsh/mi.termios.c | 2 +-
contrib/tcsh/mi.wait.h | 2 +-
contrib/tcsh/patchlevel.h | 4 +-
contrib/tcsh/sh.c | 100 ++++++++++++++++-----------------
contrib/tcsh/sh.char.c | 136 ++++++++++++++++++++++-----------------------
contrib/tcsh/sh.char.h | 2 +-
contrib/tcsh/sh.decls.h | 14 ++---
contrib/tcsh/sh.dir.c | 44 +++++++--------
contrib/tcsh/sh.dol.c | 10 ++--
contrib/tcsh/sh.err.c | 2 +-
contrib/tcsh/sh.exec.c | 10 ++--
contrib/tcsh/sh.exp.c | 44 +++++++--------
contrib/tcsh/sh.file.c | 2 +-
contrib/tcsh/sh.func.c | 84 ++++++++++++++--------------
contrib/tcsh/sh.glob.c | 18 +++---
contrib/tcsh/sh.h | 36 ++++++------
contrib/tcsh/sh.hist.c | 46 +++++++++------
contrib/tcsh/sh.init.c | 12 ++--
contrib/tcsh/sh.lex.c | 16 +++---
contrib/tcsh/sh.misc.c | 6 +-
contrib/tcsh/sh.parse.c | 1 +
contrib/tcsh/sh.print.c | 6 +-
contrib/tcsh/sh.proc.c | 28 +++++-----
contrib/tcsh/sh.sem.c | 22 ++++----
contrib/tcsh/sh.set.c | 16 +++---
contrib/tcsh/sh.time.c | 6 +-
contrib/tcsh/sh.types.h | 36 ++++++------
contrib/tcsh/tc.alloc.c | 18 +++---
contrib/tcsh/tc.bind.c | 4 +-
contrib/tcsh/tc.const.c | 20 +++----
contrib/tcsh/tc.decls.h | 4 +-
contrib/tcsh/tc.func.c | 32 +++++------
contrib/tcsh/tc.os.c | 52 ++++++++---------
contrib/tcsh/tc.os.h | 22 ++++----
contrib/tcsh/tc.printf.c | 4 +-
contrib/tcsh/tc.prompt.c | 10 ++--
contrib/tcsh/tc.str.c | 8 +--
contrib/tcsh/tc.vers.c | 22 ++++----
contrib/tcsh/tc.who.c | 8 +--
contrib/tcsh/tcsh.man | 4 +-
contrib/tcsh/tw.color.c | 6 +-
contrib/tcsh/tw.comp.c | 14 ++---
contrib/tcsh/tw.h | 2 +-
contrib/tcsh/tw.init.c | 18 +++---
contrib/tcsh/tw.parse.c | 48 ++++++++--------
contrib/tcsh/vms.termcap.c | 2 +-
61 files changed, 663 insertions(+), 643 deletions(-)
diff --cc contrib/tcsh/glob.c
index bd9856c8a8af,000000000000..a5a21f1f715c
mode 100644,000000..100644
--- a/contrib/tcsh/glob.c
+++ b/contrib/tcsh/glob.c
@@@ -1,801 -1,0 +1,801 @@@
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Guido van Rossum.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)glob.c 5.12 (Berkeley) 6/24/91";
+#endif /* LIBC_SCCS and not lint */
+/*
+ * Glob: the interface is a superset of the one defined in POSIX 1003.2,
+ * draft 9.
+ *
+ * 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_ALTNOT:
+ * Use ^ instead of ! for "not".
+ * gl_matchc:
+ * Number of matches in the current invocation of glob.
+ */
+
+#ifdef WINNT_NATIVE
+ #pragma warning(disable:4244)
+#endif /* WINNT_NATIVE */
+
+#define Char __Char
+#include "sh.h"
+#include "glob.h"
+
+#ifndef HAVE_MBLEN
+#undef mblen
+#define mblen(_s,_n) mbrlen((_s),(_n),NULL)
+#endif
+
+#undef Char
+#undef QUOTE
+#undef TILDE
+#undef META
+#undef ismeta
+#undef Strchr
+
+#ifndef S_ISDIR
+#define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR)
+#endif
+
+#if !defined(S_ISLNK) && defined(S_IFLNK)
+#define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK)
+#endif
+
+#if !defined(S_ISLNK) && !defined(lstat)
+#define lstat stat
+#endif
+
+typedef unsigned short Char;
+
+static int glob1 (Char *, glob_t *, int);
+static int glob2 (struct strbuf *, const Char *, glob_t *, int);
+static int glob3 (struct strbuf *, const Char *, const Char *,
+ const Char *, glob_t *, int);
+static void globextend (const char *, glob_t *);
+static int match (const char *, const Char *, const Char *,
+ int);
+static int compare (const void *, const void *);
+static DIR *Opendir (const char *);
+#ifdef S_IFLNK
+static int Lstat (const char *, struct stat *);
+#endif
+static int Stat (const char *, struct stat *sb);
+static Char *Strchr (Char *, int);
+#ifdef DEBUG
+static void qprintf (const char *, const Char *);
+#endif
+
+#define DOLLAR '$'
+#define DOT '.'
+#define EOS '\0'
+#define LBRACKET '['
+#define NOT '!'
+#define ALTNOT '^'
+#define QUESTION '?'
+#define QUOTE '\\'
+#define RANGE '-'
+#define RBRACKET ']'
+#define SEP '/'
+#define STAR '*'
+#define TILDE '~'
+#define UNDERSCORE '_'
+
+#define M_META 0x8000
+#define M_PROTECT 0x4000
+#define M_MASK 0xffff
+#define M_ASCII 0x00ff
+
+#define LCHAR(c) ((c)&M_ASCII)
+#define META(c) ((c)|M_META)
+#define M_ALL META('*')
+#define M_END META(']')
+#define M_NOT META('!')
+#define M_ALTNOT META('^')
+#define M_ONE META('?')
+#define M_RNG META('-')
+#define M_SET META('[')
+#define ismeta(c) (((c)&M_META) != 0)
+
+int
+globcharcoll(__Char c1, __Char c2, int cs)
+{
+#if defined(NLS) && defined(LC_COLLATE) && defined(HAVE_STRCOLL)
+# if defined(WIDE_STRINGS)
+ wchar_t s1[2], s2[2];
+
+ if (c1 == c2)
+ return (0);
+ if (cs) {
+ c1 = towlower(c1);
+ c2 = towlower(c2);
+ } else {
+#ifndef __FreeBSD__
+ /* This should not be here, but I'll rather leave it in than engage in
+ a LC_COLLATE flamewar about a shell I don't use... */
+ if (iswlower(c1) && iswupper(c2))
+ return (1);
+ if (iswupper(c1) && iswlower(c2))
+ return (-1);
+#endif
+ }
+ s1[0] = c1;
+ s2[0] = c2;
+ s1[1] = s2[1] = '\0';
+ return wcscoll(s1, s2);
+# else /* not WIDE_STRINGS */
+ char s1[2], s2[2];
+
+ if (c1 == c2)
+ return (0);
+ /*
+ * From kevin lyda <kevin at suberic.net>:
+ * strcoll does not guarantee case sorting, so we pre-process now:
+ */
+ if (cs) {
+ c1 = islower(c1) ? c1 : tolower(c1);
+ c2 = islower(c2) ? c2 : tolower(c2);
+ } else {
+ if (islower(c1) && isupper(c2))
+ return (1);
+ if (isupper(c1) && islower(c2))
+ return (-1);
+ }
+ s1[0] = c1;
+ s2[0] = c2;
+ s1[1] = s2[1] = '\0';
+ return strcoll(s1, s2);
+# endif
+#else
+ return (c1 - c2);
+#endif
+}
+
+/*
+ * Need to dodge two kernel bugs:
+ * opendir("") != opendir(".")
+ * NAMEI_BUG: on plain files trailing slashes are ignored in some kernels.
+ * POSIX specifies that they should be ignored in directories.
+ */
+
+static DIR *
+Opendir(const char *str)
+{
+#if defined(hpux) || defined(__hpux)
+ struct stat st;
+#endif
+
+ if (!*str)
+ return (opendir("."));
+#if defined(hpux) || defined(__hpux)
+ /*
+ * Opendir on some device files hangs, so avoid it
+ */
+ if (stat(str, &st) == -1 || !S_ISDIR(st.st_mode))
+ return NULL;
+#endif
+ return opendir(str);
+}
+
+#ifdef S_IFLNK
+static int
+Lstat(const char *fn, struct stat *sb)
+{
+ int st;
+
+ st = lstat(fn, sb);
+# ifdef NAMEI_BUG
+ if (*fn != 0 && strend(fn)[-1] == '/' && !S_ISDIR(sb->st_mode))
+ st = -1;
+# endif /* NAMEI_BUG */
+ return st;
+}
+#else
+#define Lstat Stat
+#endif /* S_IFLNK */
+
+static int
+Stat(const char *fn, struct stat *sb)
+{
+ int st;
+
+ st = stat(fn, sb);
+#ifdef NAMEI_BUG
+ if (*fn != 0 && strend(fn)[-1] == '/' && !S_ISDIR(sb->st_mode))
+ st = -1;
+#endif /* NAMEI_BUG */
+ return st;
+}
+
+static Char *
+Strchr(Char *str, int ch)
+{
+ do
+ if (*str == ch)
+ return (str);
+ while (*str++);
+ return (NULL);
+}
+
+#ifdef DEBUG
+static void
+qprintf(const char *pre, const Char *s)
+{
+ const Char *p;
-
++
+ xprintf("%s", pre);
+ for (p = s; *p; p++)
+ xprintf("%c", *p & 0xff);
+ xprintf("\n%s", pre);
+ for (p = s; *p; p++)
+ xprintf("%c", *p & M_PROTECT ? '"' : ' ');
+ xprintf("\n%s", pre);
+ for (p = s; *p; p++)
+ xprintf("%c", *p & M_META ? '_' : ' ');
+ xprintf("\n");
+}
+#endif /* DEBUG */
+
+static int
+compare(const void *p, const void *q)
+{
+#if defined(NLS) && defined(HAVE_STRCOLL)
+ return (strcoll(*(char *const *) p, *(char *const *) q));
+#else
+ return (strcmp(*(char *const *) p, *(char *const *) q));
+#endif /* NLS && HAVE_STRCOLL */
+}
+
+/*
+ * 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.
+ */
+int
+glob(const char *pattern, int flags, int (*errfunc) (const char *, int),
+ glob_t *pglob)
+{
+ int err, oldpathc;
+ Char *bufnext, m_not;
+ const unsigned char *patnext;
+ int c, not;
+ Char *qpatnext, *patbuf;
+ int no_match;
+
+ patnext = (const unsigned char *) pattern;
+ if (!(flags & GLOB_APPEND)) {
+ pglob->gl_pathc = 0;
+ pglob->gl_pathv = NULL;
+ if (!(flags & GLOB_DOOFFS))
+ pglob->gl_offs = 0;
+ }
+ pglob->gl_flags = flags & ~GLOB_MAGCHAR;
+ pglob->gl_errfunc = errfunc;
+ oldpathc = pglob->gl_pathc;
+ pglob->gl_matchc = 0;
+
+ if (pglob->gl_flags & GLOB_ALTNOT) {
+ not = ALTNOT;
+ m_not = M_ALTNOT;
+ }
+ else {
+ not = NOT;
+ m_not = M_NOT;
+ }
+
+ patbuf = xmalloc((strlen(pattern) + 1) * sizeof(*patbuf));
+ bufnext = patbuf;
+
+ no_match = *patnext == not;
+ if (no_match)
+ patnext++;
+
+ if (flags & GLOB_QUOTE) {
+ /* Protect the quoted characters */
+ while ((c = *patnext++) != EOS) {
+#ifdef WIDE_STRINGS
+ int len;
-
++
+ len = mblen((const char *)(patnext - 1), MB_LEN_MAX);
+ if (len == -1)
+ TCSH_IGNORE(mblen(NULL, 0));
+ else if (len > 1) {
+ *bufnext++ = (Char) c;
+ while (--len != 0)
+ *bufnext++ = (Char) (*patnext++ | M_PROTECT);
+ } else
+#endif /* WIDE_STRINGS */
+ if (c == QUOTE) {
+ if ((c = *patnext++) == EOS) {
+ c = QUOTE;
+ --patnext;
+ }
+ *bufnext++ = (Char) (c | M_PROTECT);
+ }
+ else
+ *bufnext++ = (Char) c;
+ }
+ }
+ else
+ while ((c = *patnext++) != EOS)
+ *bufnext++ = (Char) c;
+ *bufnext = EOS;
+
+ bufnext = patbuf;
+ qpatnext = patbuf;
+ while ((c = *qpatnext++) != EOS) {
+ switch (c) {
+ case LBRACKET:
+ c = *qpatnext;
+ if (c == not)
+ ++qpatnext;
+ if (*qpatnext == EOS ||
+ Strchr(qpatnext + 1, RBRACKET) == NULL) {
+ *bufnext++ = LBRACKET;
+ if (c == not)
+ --qpatnext;
+ break;
+ }
+ pglob->gl_flags |= GLOB_MAGCHAR;
+ *bufnext++ = M_SET;
+ if (c == not)
+ *bufnext++ = m_not;
+ c = *qpatnext++;
+ do {
+ *bufnext++ = LCHAR(c);
+ if (*qpatnext == RANGE &&
+ (c = qpatnext[1]) != RBRACKET) {
+ *bufnext++ = M_RNG;
+ *bufnext++ = LCHAR(c);
+ qpatnext += 2;
+ }
+ } while ((c = *qpatnext++) != RBRACKET);
+ *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 [or three if globstar],
+ * to avoid exponential behavior
+ */
+ if (bufnext == patbuf || bufnext[-1] != M_ALL ||
- ((flags & GLOB_STAR) != 0 &&
++ ((flags & GLOB_STAR) != 0 &&
+ (bufnext - 1 == patbuf || bufnext[-2] != M_ALL ||
+ bufnext - 2 == patbuf || bufnext[-3] != M_ALL)))
+ *bufnext++ = M_ALL;
+ break;
+ default:
+ *bufnext++ = LCHAR(c);
+ break;
+ }
+ }
+ *bufnext = EOS;
+#ifdef DEBUG
+ qprintf("patbuf=", patbuf);
+#endif
+
+ if ((err = glob1(patbuf, pglob, no_match)) != 0) {
+ xfree(patbuf);
+ return (err);
+ }
+
+ /*
- * If there was no match we are going to append the pattern
++ * 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 &&
- ((flags & GLOB_NOCHECK) ||
++ if (pglob->gl_pathc == oldpathc &&
++ ((flags & GLOB_NOCHECK) ||
+ ((flags & GLOB_NOMAGIC) && !(pglob->gl_flags & GLOB_MAGCHAR)))) {
+ if (!(flags & GLOB_QUOTE))
+ globextend(pattern, pglob);
+ else {
+ char *copy, *dest;
+ const char *src;
+
+ /* copy pattern, interpreting quotes */
+ copy = xmalloc(strlen(pattern) + 1);
+ dest = copy;
+ src = pattern;
+ while (*src != EOS) {
+ /* Don't interpret quotes. The spec does not say we should do */
+ if (*src == QUOTE) {
+ if (*++src == EOS)
+ --src;
+ }
+ *dest++ = *src++;
+ }
+ *dest = EOS;
+ globextend(copy, pglob);
+ xfree(copy);
+ }
+ xfree(patbuf);
+ return 0;
+ }
+ else if (!(flags & GLOB_NOSORT) && (pglob->gl_pathc != oldpathc))
+ qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc,
+ pglob->gl_pathc - oldpathc, sizeof(char *), compare);
+ xfree(patbuf);
+ return (0);
+}
+
+static int
+glob1(Char *pattern, glob_t *pglob, int no_match)
+{
+ struct strbuf pathbuf = strbuf_INIT;
+ int err;
+
+ /*
+ * a null pathname is invalid -- POSIX 1003.1 sect. 2.4.
+ */
+ if (*pattern == EOS)
+ return (0);
+ err = glob2(&pathbuf, pattern, pglob, no_match);
+ xfree(pathbuf.s);
+ return err;
+}
+
+/*
+ * 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(struct strbuf *pathbuf, const Char *pattern, glob_t *pglob, int no_match)
+{
+ struct stat sbuf;
+ int anymeta;
+ const Char *p;
+ size_t orig_len;
+
+ /*
+ * loop over pattern segments until end of pattern or until segment with
+ * meta character found.
+ */
+ anymeta = 0;
+ for (;;) {
+ if (*pattern == EOS) { /* end of pattern? */
+ strbuf_terminate(pathbuf);
+
+ if (Lstat(pathbuf->s, &sbuf))
+ return (0);
+
+ if (((pglob->gl_flags & GLOB_MARK) &&
+ pathbuf->s[pathbuf->len - 1] != SEP) &&
+ (S_ISDIR(sbuf.st_mode)
+#ifdef S_IFLNK
+ || (S_ISLNK(sbuf.st_mode) &&
+ (Stat(pathbuf->s, &sbuf) == 0) &&
+ S_ISDIR(sbuf.st_mode))
+#endif
+ )) {
+ strbuf_append1(pathbuf, SEP);
+ strbuf_terminate(pathbuf);
+ }
+ ++pglob->gl_matchc;
+ globextend(pathbuf->s, pglob);
+ return 0;
+ }
+
+ /* find end of next segment, tentatively copy to pathbuf */
+ p = pattern;
+ orig_len = pathbuf->len;
+ while (*p != EOS && *p != SEP) {
+ if (ismeta(*p))
+ anymeta = 1;
+ strbuf_append1(pathbuf, *p++);
+ }
+
+ if (!anymeta) { /* no expansion, do next segment */
+ pattern = p;
+ while (*pattern == SEP)
+ strbuf_append1(pathbuf, *pattern++);
+ }
+ else { /* need expansion, recurse */
+ pathbuf->len = orig_len;
+ return (glob3(pathbuf, pattern, p, pattern, pglob, no_match));
+ }
+ }
+ /* NOTREACHED */
+}
+
+static size_t
+One_Char_mbtowc(__Char *pwc, const Char *s, size_t n)
+{
+#ifdef WIDE_STRINGS
+ char buf[MB_LEN_MAX], *p;
+
+ if (n > MB_LEN_MAX)
+ n = MB_LEN_MAX;
+ p = buf;
+ while (p < buf + n && (*p++ = LCHAR(*s++)) != 0)
+ ;
+ return one_mbtowc(pwc, buf, n);
+#else
+ *pwc = *s & CHAR;
+ return 1;
+#endif
+}
-
++
+static int
+glob3(struct strbuf *pathbuf, const Char *pattern, const Char *restpattern,
+ const Char *pglobstar, glob_t *pglob, int no_match)
+{
+ DIR *dirp;
+ struct dirent *dp;
+ struct stat sbuf;
+ int err;
+ Char m_not = (pglob->gl_flags & GLOB_ALTNOT) ? M_ALTNOT : M_NOT;
+ size_t orig_len;
+ int globstar = 0;
+ int chase_symlinks = 0;
+ const Char *termstar = NULL;
+
+ strbuf_terminate(pathbuf);
+ orig_len = pathbuf->len;
+ errno = err = 0;
+
+ while (pglobstar < restpattern) {
+ __Char wc;
+ size_t width = One_Char_mbtowc(&wc, pglobstar, MB_LEN_MAX);
+ if ((pglobstar[0] & M_MASK) == M_ALL &&
+ (pglobstar[width] & M_MASK) == M_ALL) {
+ globstar = 1;
+ chase_symlinks = (pglobstar[2 * width] & M_MASK) == M_ALL;
+ termstar = pglobstar + (2 + chase_symlinks) * width;
+ break;
+ }
+ pglobstar += width;
- }
++ }
+
+ if (globstar) {
+ err = pglobstar==pattern && termstar==restpattern ?
+ *restpattern == EOS ?
+ glob2(pathbuf, restpattern - 1, pglob, no_match) :
+ glob2(pathbuf, restpattern + 1, pglob, no_match) :
+ glob3(pathbuf, pattern, restpattern, termstar, pglob, no_match);
+ if (err)
+ return err;
+ pathbuf->len = orig_len;
+ strbuf_terminate(pathbuf);
+ }
+
+ if (*pathbuf->s && (Lstat(pathbuf->s, &sbuf) || !S_ISDIR(sbuf.st_mode)
+#ifdef S_IFLINK
+ && ((globstar && !chase_symlinks) || !S_ISLNK(sbuf.st_mode))
+#endif
+ ))
+ return 0;
+
+ if (!(dirp = Opendir(pathbuf->s))) {
+ /* todo: don't call for ENOENT or ENOTDIR? */
+ if ((pglob->gl_errfunc && (*pglob->gl_errfunc) (pathbuf->s, errno)) ||
+ (pglob->gl_flags & GLOB_ERR))
+ return (GLOB_ABEND);
+ else
+ return (0);
+ }
+
+ /* search directory for matching names */
+ while ((dp = readdir(dirp)) != NULL) {
+ /* initial DOT must be matched literally */
+ if (dp->d_name[0] == DOT && *pattern != DOT)
+ if (!(pglob->gl_flags & GLOB_DOT) || !dp->d_name[1] ||
+ (dp->d_name[1] == DOT && !dp->d_name[2]))
+ continue; /*unless globdot and not . or .. */
+ pathbuf->len = orig_len;
+ strbuf_append(pathbuf, dp->d_name);
+ strbuf_terminate(pathbuf);
+
+ if (globstar) {
+#ifdef S_IFLNK
+ if (!chase_symlinks &&
+ (Lstat(pathbuf->s, &sbuf) || S_ISLNK(sbuf.st_mode)))
+ continue;
+#endif
+ if (match(pathbuf->s + orig_len, pattern, termstar,
- (int)m_not) == no_match)
++ (int)m_not) == no_match)
+ continue;
+ strbuf_append1(pathbuf, SEP);
+ strbuf_terminate(pathbuf);
+ if ((err = glob2(pathbuf, pglobstar, pglob, no_match)) != 0)
+ break;
+ } else {
+ if (match(pathbuf->s + orig_len, pattern, restpattern,
+ (int) m_not) == no_match)
+ continue;
+ if ((err = glob2(pathbuf, restpattern, pglob, no_match)) != 0)
+ break;
+ }
+ }
+ /* todo: check error from readdir? */
+ 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 void
+globextend(const char *path, glob_t *pglob)
+{
+ char **pathv;
+ int i;
+ size_t newsize;
+
+ newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs);
+ pathv = xrealloc(pglob->gl_pathv, newsize);
+
+ 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;
+
+ pathv[pglob->gl_offs + pglob->gl_pathc++] = strsave(path);
+ pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
+}
+
+/*
+ * pattern matching function for filenames.
+ */
+static int
+match(const char *name, const Char *pat, const Char *patend, int m_not)
+{
+ int ok, negate_range;
+ const Char *patNext;
+ const char *nameNext, *nameStart, *nameEnd;
+ Char c;
+
+ patNext = pat;
+ nameStart = nameNext = name;
+ nameEnd = NULL;
+
+ while (pat < patend || *name) {
+ size_t lwk, pwk;
+ __Char wc, wk, wc1;
+
+ c = *pat; /* Only for M_MASK bits */
+ if (*name == EOS)
+ nameEnd = name;
+
+ pwk = One_Char_mbtowc(&wc, pat, MB_LEN_MAX);
+ lwk = one_mbtowc(&wk, name, MB_LEN_MAX);
+ switch (c & M_MASK) {
+ case M_ALL:
+ while ((*(pat + pwk) & M_MASK) == M_ALL) {
+ pat += pwk;
+ pwk = One_Char_mbtowc(&wc, pat, MB_LEN_MAX);
+ }
+ patNext = pat;
+ nameNext = name + lwk;
+ pat += pwk;
+ continue;
+ case M_ONE:
+ if (*name == EOS)
+ break;
+ name += lwk;
+ pat += pwk;
+ continue;
+ case M_SET:
+ ok = 0;
+ if (*name == EOS)
+ break;
+ pat += pwk;
+ pwk = One_Char_mbtowc(&wc, pat, MB_LEN_MAX);
+ name += lwk;
+ if ((negate_range = ((*pat & M_MASK) == m_not)) != 0) {
+ pat += pwk;
+ pwk = One_Char_mbtowc(&wc, pat, MB_LEN_MAX);
+ }
+ wc1 = wc;
+ while ((*pat & M_MASK) != M_END) {
+ if ((*pat & M_MASK) == M_RNG) {
+ __Char wc2;
+
+ pat += pwk;
+ pwk = One_Char_mbtowc(&wc2, pat, MB_LEN_MAX);
+ if (globcharcoll(wc1, wk, 0) <= 0 &&
+ globcharcoll(wk, wc2, 0) <= 0)
+ ok = 1;
+ } else if (wc == wk)
+ ok = 1;
+ pat += pwk;
+ wc1 = wc;
+ pwk = One_Char_mbtowc(&wc, pat, MB_LEN_MAX);
+ }
+ pat += pwk;
+ pwk = One_Char_mbtowc(&wc, pat, MB_LEN_MAX);
+ if (ok == negate_range)
+ break;
+ continue;
+ default:
+ if (*name == EOS || samecase(wk) != samecase(wc))
+ break;
+ name += lwk;
+ pat += pwk;
+ continue;
+ }
+ if (nameNext != nameStart
+ && (nameEnd == NULL || nameNext <= nameEnd)) {
+ pat = patNext;
+ name = nameNext;
+ continue;
+ }
+ return 0;
+ }
+ return 1;
+}
+
+/* free allocated data belonging to a glob_t structure */
+void
+globfree(glob_t *pglob)
+{
+ int i;
+ char **pp;
+
+ if (pglob->gl_pathv != NULL) {
+ pp = pglob->gl_pathv + pglob->gl_offs;
+ for (i = pglob->gl_pathc; i--; ++pp)
+ if (*pp)
+ xfree(*pp), *pp = NULL;
+ xfree(pglob->gl_pathv), pglob->gl_pathv = NULL;
+ }
+}
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