svn commit: r303014 - head/lib/libc/gen

[Andrey A. Chernov]

Author: ache
Date: Tue Jul 19 00:25:27 2016
New Revision: 303014
URL: https://svnweb.freebsd.org/changeset/base/303014

Log:
  1) Don't protect \/ and \. even if user say so. They are not special chars
  in any case and needed for further processing. For ~ expansion too.
  
  2) Don't terminate *pathend with / when GLOB_LIMIT_STAT is reached, it will
  be not visible outside in any case since error is returned.
  
  3) Cosmetic: change if expression to better reflect its semantic.

Modified:
  head/lib/libc/gen/glob.c

Modified: head/lib/libc/gen/glob.c
==============================================================================
--- head/lib/libc/gen/glob.c	Mon Jul 18 20:24:13 2016	(r303013)
+++ head/lib/libc/gen/glob.c	Tue Jul 19 00:25:27 2016	(r303014)
@@ -244,7 +244,8 @@ glob(const char * __restrict pattern, in
 				return (GLOB_NOMATCH);
 			else if (clen == 0)
 				break;
-			*bufnext++ = wc | prot;
+			*bufnext++ = wc | ((wc != DOT && wc != SEP) ?
+			    prot : 0);
 			patnext += clen;
 		}
 	}
@@ -478,8 +479,8 @@ globtilde(const Char *pattern, Char *pat
 		return (NULL);
 
 	dc = wbuf;
-	for (b = patbuf; b < eb && *dc != EOS; *b++ = *dc++ | M_PROTECT)
-		continue;
+	for (b = patbuf; b < eb && *dc != EOS; b++, dc++)
+		*b = *dc | ((*dc != DOT && *dc != SEP) ? M_PROTECT : 0);
 	if (*dc != EOS)
 		return (NULL);
 
@@ -642,10 +643,6 @@ glob2(Char *pathbuf, Char *pathend, Char
 			if ((pglob->gl_flags & GLOB_LIMIT) &&
 			    limit->l_stat_cnt++ >= GLOB_LIMIT_STAT) {
 				errno = 0;
-				if (pathend + 1 > pathend_last)
-					return (GLOB_NOSPACE);
-				*pathend++ = SEP;
-				*pathend = EOS;
 				return (GLOB_NOSPACE);
 			}
 			if (((pglob->gl_flags & GLOB_MARK) &&
@@ -886,7 +883,7 @@ match(Char *name, Char *pat, Char *paten
 			ok = 0;
 			if ((k = *name++) == EOS)
 				return (0);
-			if ((negate_range = ((*pat & M_MASK) == M_NOT)) != EOS)
+			if ((negate_range = ((*pat & M_MASK) == M_NOT)) != 0)
 				++pat;
 			while (((c = *pat++) & M_MASK) != M_END)
 				if ((*pat & M_MASK) == M_RNG) {