Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/lib/libc/gen/glob.c,v
retrieving revision 1.18.2.1
retrieving revision 1.19
diff -u -p -r1.18.2.1 -r1.19
--- src/lib/libc/gen/glob.c	2010/08/05 01:43:20	1.18.2.1
+++ src/lib/libc/gen/glob.c	2007/12/05 20:25:56	1.19
@@ -1,4 +1,4 @@
-/*	$NetBSD: glob.c,v 1.18.2.1 2010/08/05 01:43:20 riz Exp $	*/
+/*	$NetBSD: glob.c,v 1.19 2007/12/05 20:25:56 christos Exp $	*/
 
 /*
  * Copyright (c) 1989, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)glob.c	8.3 (Berkeley) 10/13/93";
 #else
-__RCSID("$NetBSD: glob.c,v 1.18.2.1 2010/08/05 01:43:20 riz Exp $");
+__RCSID("$NetBSD: glob.c,v 1.19 2007/12/05 20:25:56 christos Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -59,6 +59,8 @@ __RCSID("$NetBSD: glob.c,v 1.18.2.1 2010
  *	expand ~user/foo to the /home/dir/of/user/foo
  * GLOB_BRACE:
  *	expand {1,2}{a,b} to 1a 1b 2a 2b 
+ * GLOB_PERIOD:
+ *	allow metacharacters to match leading dots in filenames.
  * gl_matchc:
  *	Number of matches in the current invocation of glob.
  */
@@ -82,14 +84,6 @@ __RCSID("$NetBSD: glob.c,v 1.18.2.1 2010
 #define NO_GETPW_R
 #endif
 
-#define	GLOB_LIMIT_MALLOC	65536
-#define	GLOB_LIMIT_STAT		128
-#define	GLOB_LIMIT_READDIR	16384
-
-#define	GLOB_INDEX_MALLOC	0
-#define	GLOB_INDEX_STAT		1
-#define	GLOB_INDEX_READDIR	2
-
 /*
  * XXX: For NetBSD 1.4.x compatibility. (kill me l8r)
  */
@@ -153,7 +147,7 @@ static int	 g_lstat(Char *, __gl_stat_t 
 static DIR	*g_opendir(Char *, glob_t *);
 static Char	*g_strchr(const Char *, int);
 static int	 g_stat(Char *, __gl_stat_t *, glob_t *);
-static int	 glob0(const Char *, glob_t *, size_t *);
+static int	 glob0(const Char *, glob_t *);
 static int	 glob1(Char *, glob_t *, size_t *);
 static int	 glob2(Char *, Char *, Char *, Char *, glob_t *,
     size_t *);
@@ -161,9 +155,8 @@ static int	 glob3(Char *, Char *, Char *
     size_t *);
 static int	 globextend(const Char *, glob_t *, size_t *);
 static const Char *globtilde(const Char *, Char *, size_t, glob_t *);
-static int	 globexp1(const Char *, glob_t *, size_t *);
-static int	 globexp2(const Char *, const Char *, glob_t *, int *,
-    size_t *);
+static int	 globexp1(const Char *, glob_t *);
+static int	 globexp2(const Char *, const Char *, glob_t *, int *);
 static int	 match(Char *, Char *, Char *);
 #ifdef DEBUG
 static void	 qprintf(const char *, Char *);
@@ -176,8 +169,6 @@ glob(const char *pattern, int flags, int
 	const u_char *patnext;
 	int c;
 	Char *bufnext, *bufend, patbuf[MAXPATHLEN+1];
-	/* 0 = malloc(), 1 = stat(), 2 = readdir() */
-	size_t limit[] = { 0, 0, 0 };
 
 	_DIAGASSERT(pattern != NULL);
 
@@ -213,9 +204,9 @@ glob(const char *pattern, int flags, int
 	*bufnext = EOS;
 
 	if (flags & GLOB_BRACE)
-	    return globexp1(patbuf, pglob, limit);
+	    return globexp1(patbuf, pglob);
 	else
-	    return glob0(patbuf, pglob, limit);
+	    return glob0(patbuf, pglob);
 }
 
 /*
@@ -224,7 +215,7 @@ glob(const char *pattern, int flags, int
  * characters
  */
 static int
-globexp1(const Char *pattern, glob_t *pglob, size_t *limit)
+globexp1(const Char *pattern, glob_t *pglob)
 {
 	const Char* ptr = pattern;
 	int rv;
@@ -234,13 +225,13 @@ globexp1(const Char *pattern, glob_t *pg
 
 	/* Protect a single {}, for find(1), like csh */
 	if (pattern[0] == LBRACE && pattern[1] == RBRACE && pattern[2] == EOS)
-		return glob0(pattern, pglob, limit);
+		return glob0(pattern, pglob);
 
 	while ((ptr = (const Char *) g_strchr(ptr, LBRACE)) != NULL)
-		if (!globexp2(ptr, pattern, pglob, &rv, limit))
+		if (!globexp2(ptr, pattern, pglob, &rv))
 			return rv;
 
-	return glob0(pattern, pglob, limit);
+	return glob0(pattern, pglob);
 }
 
 
@@ -250,8 +241,7 @@ globexp1(const Char *pattern, glob_t *pg
  * If it fails then it tries to glob the rest of the pattern and returns.
  */
 static int
-globexp2(const Char *ptr, const Char *pattern, glob_t *pglob, int *rv,
-    size_t *limit)
+globexp2(const Char *ptr, const Char *pattern, glob_t *pglob, int *rv)
 {
 	int     i;
 	Char   *lm, *ls;
@@ -296,7 +286,7 @@ globexp2(const Char *ptr, const Char *pa
 		 * we use `pattern', not `patbuf' here so that that
 		 * unbalanced braces are passed to the match
 		 */
-		*rv = glob0(pattern, pglob, limit);
+		*rv = glob0(pattern, pglob);
 		return 0;
 	}
 
@@ -343,7 +333,7 @@ globexp2(const Char *ptr, const Char *pa
 #ifdef DEBUG
 				qprintf("globexp2:", patbuf);
 #endif
-				*rv = globexp1(patbuf, pglob, limit);
+				*rv = globexp1(patbuf, pglob);
 
 				/* move after the comma, to the next string */
 				pl = pm + 1;
@@ -456,12 +446,13 @@ globtilde(const Char *pattern, Char *pat
  * to find no matches.
  */
 static int
-glob0(const Char *pattern, glob_t *pglob, size_t *limit)
+glob0(const Char *pattern, glob_t *pglob)
 {
 	const Char *qpatnext;
 	int c, error;
 	__gl_size_t oldpathc;
 	Char *bufnext, patbuf[MAXPATHLEN+1];
+	size_t limit = 0;
 
 	_DIAGASSERT(pattern != NULL);
 	_DIAGASSERT(pglob != NULL);
@@ -524,7 +515,7 @@ glob0(const Char *pattern, glob_t *pglob
 	qprintf("glob0:", patbuf);
 #endif
 
-	if ((error = glob1(patbuf, pglob, limit)) != 0)
+	if ((error = glob1(patbuf, pglob, &limit)) != 0)
 		return error;
 
 	if (pglob->gl_pathc == oldpathc) {	
@@ -538,7 +529,7 @@ glob0(const Char *pattern, glob_t *pglob
 		if ((pglob->gl_flags & GLOB_NOCHECK) ||
 		    ((pglob->gl_flags & (GLOB_NOMAGIC|GLOB_MAGCHAR))
 		     == GLOB_NOMAGIC)) {
-			return globextend(pattern, pglob, limit);
+			return globextend(pattern, pglob, &limit);
 		} else {
 			return GLOB_NOMATCH;
 		}
@@ -609,13 +600,6 @@ glob2(Char *pathbuf, Char *pathend, Char
 			if (g_lstat(pathbuf, &sb, pglob))
 				return 0;
 		
-			if ((pglob->gl_flags & GLOB_LIMIT) &&
-			    limit[GLOB_INDEX_STAT]++ >= GLOB_LIMIT_STAT) {
-				errno = 0;
-				*pathend++ = SEP;
-				*pathend = EOS;
-				return GLOB_NOSPACE;
-			}
 			if (((pglob->gl_flags & GLOB_MARK) &&
 			    pathend[-1] != SEP) && (S_ISDIR(sb.st_mode) ||
 			    (S_ISLNK(sb.st_mode) &&
@@ -713,9 +697,13 @@ glob3(Char *pathbuf, Char *pathend, Char
 		u_char *sc;
 		Char *dc;
 
-		/* Initial DOT must be matched literally. */
-		if (dp->d_name[0] == DOT && *pattern != DOT)
-			continue;
+		/*
+		 * 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;
 		/*
 		 * The resulting string contains EOS, so we can
 		 * use the pathlim character, if it is the nul
@@ -724,14 +712,6 @@ glob3(Char *pathbuf, Char *pathend, Char
 		     dc <= pathlim && (*dc++ = *sc++) != EOS;)
 			continue;
 
-		if ((pglob->gl_flags & GLOB_LIMIT) &&
-		    limit[GLOB_INDEX_READDIR]++ >= GLOB_LIMIT_READDIR) {
-			errno = 0;
-			*pathend++ = SEP;
-			*pathend = EOS;
-			return GLOB_NOSPACE;
-		}
-
 		/*
 		 * Have we filled the buffer without seeing EOS?
 		 */
@@ -755,8 +735,7 @@ glob3(Char *pathbuf, Char *pathend, Char
 			*pathend = EOS;
 			continue;
 		}
-		error = glob2(pathbuf, --dc, pathlim, restpattern, pglob,
-		    limit);
+		error = glob2(pathbuf, --dc, pathlim, restpattern, pglob, limit);
 		if (error)
 			break;
 	}
@@ -818,7 +797,7 @@ globextend(const Char *path, glob_t *pgl
 	for (p = path; *p++;)
 		continue;
 	len = (size_t)(p - path);
-	limit[GLOB_INDEX_MALLOC] += len;
+	*limit += len;
 	if ((copy = malloc(len)) != NULL) {
 		if (g_Ctoc(path, copy, len)) {
 			free(copy);
@@ -828,8 +807,7 @@ globextend(const Char *path, glob_t *pgl
 	}
 	pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
 
-	if ((pglob->gl_flags & GLOB_LIMIT) &&
-	    (newsize + limit[GLOB_INDEX_MALLOC]) >= GLOB_LIMIT_MALLOC) {
+	if ((pglob->gl_flags & GLOB_LIMIT) && (newsize + *limit) >= ARG_MAX) {
 		errno = 0;
 		return GLOB_NOSPACE;
 	}