From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue, 5 Sep 2017 14:02:24 +0000 (-0300)
Subject: posix: Use enum for __glob_pattern_type result
X-Git-Tag: glibc-2.27~938
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07b4f49db285f39594859c58893e3404b33200dd;p=thirdparty%2Fglibc.git

posix: Use enum for __glob_pattern_type result

This patch replaces the internal integer constant from
__glob_pattern_type return with a proper enum.

Checked on x86_64-linux-gnu and on a build using build-many-glibcs.py
for all major architectures.

	* posix/glob_internal.h (glob_pattern_type_t): New enumeration.
	(__glob_pattern_type): Use __glob_pat_types.
	* posix/glob_pattern_p.c (__glob_pattern_p): Likewise.
	* posix/glob.c (glob): Likewise.
	(glob_in_dir): Likewise.
---

diff --git a/ChangeLog b/ChangeLog
index b34d7249a7f..4f4635fc716 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2017-09-08  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
+	* posix/glob_internal.h (GLOBPAT_NONE, GLOBPAT_SPECIAL)
+	(GLOBPAT_BACKSLASH, GLOBPAT_BRACKET): New constants.
+	* posix/glob_internal.h (__glob_pattern_type):
+	* posix/glob.c (glob):
+	* posix/glob_pattern_p.c (__glob_pattern_p):
+	Use them.
+
 	* sysdeps/unix/sysv/linux/arm/glob64.c: Remove file.
 	* sysdeps/unix/sysv/linux/i386/glob64.c: Likewise.
 	* sysdeps/unix/sysv/linux/m68k/glob64.c: Likewise.
diff --git a/posix/glob.c b/posix/glob.c
index a47507a1cce..c699177d193 100644
--- a/posix/glob.c
+++ b/posix/glob.c
@@ -902,7 +902,7 @@ glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
      [ which we handle the same, using fnmatch.  Broken unterminated
      pattern bracket expressions ought to be rare enough that it is
      not worth special casing them, fnmatch will do the right thing.  */
-  if (meta & 5)
+  if (meta & (GLOBPAT_SPECIAL | GLOBPAT_BRACKET))
     {
       /* The directory name contains metacharacters, so we
 	 have to glob for the directory, and then glob for
@@ -1043,7 +1043,7 @@ glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
       size_t old_pathc = pglob->gl_pathc;
       int orig_flags = flags;
 
-      if (meta & 2)
+      if (meta & GLOBPAT_BACKSLASH)
 	{
 	  char *p = strchr (dirname, '\\'), *q;
 	  /* We need to unescape the dirname string.  It is certainly
@@ -1241,14 +1241,14 @@ glob_in_dir (const char *pattern, const char *directory, int flags,
                        / sizeof init_names->name[0]);
 
   meta = __glob_pattern_type (pattern, !(flags & GLOB_NOESCAPE));
-  if (meta == 0 && (flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
+  if (meta == GLOBPAT_NONE && (flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
     {
       /* We need not do any tests.  The PATTERN contains no meta
 	 characters and we must not return an error therefore the
 	 result will always contain exactly one name.  */
       flags |= GLOB_NOCHECK;
     }
-  else if (meta == 0)
+  else if (meta == GLOBPAT_NONE)
     {
       union
       {
diff --git a/posix/glob_internal.h b/posix/glob_internal.h
index 12c93660b73..d118b3533d4 100644
--- a/posix/glob_internal.h
+++ b/posix/glob_internal.h
@@ -19,35 +19,43 @@
 #ifndef GLOB_INTERNAL_H
 # define GLOB_INTERNAL_H
 
+enum
+{
+  GLOBPAT_NONE      = 0x0,
+  GLOBPAT_SPECIAL   = 0x1,
+  GLOBPAT_BACKSLASH = 0x2,
+  GLOBPAT_BRACKET   = 0x4
+};
+
 static inline int
 __glob_pattern_type (const char *pattern, int quote)
 {
   const char *p;
-  int ret = 0;
+  int ret = GLOBPAT_NONE;
 
   for (p = pattern; *p != '\0'; ++p)
     switch (*p)
       {
       case '?':
       case '*':
-        return 1;
+        return GLOBPAT_SPECIAL;
 
       case '\\':
         if (quote)
           {
             if (p[1] != '\0')
               ++p;
-            ret |= 2;
+            ret |= GLOBPAT_BACKSLASH;
           }
         break;
 
       case '[':
-        ret |= 4;
+        ret |= GLOBPAT_BRACKET;
         break;
 
       case ']':
         if (ret & 4)
-          return 1;
+          return GLOBPAT_SPECIAL;
         break;
       }
 
diff --git a/posix/glob_pattern_p.c b/posix/glob_pattern_p.c
index a17d3371821..8489106e905 100644
--- a/posix/glob_pattern_p.c
+++ b/posix/glob_pattern_p.c
@@ -28,6 +28,6 @@
 int
 __glob_pattern_p (const char *pattern, int quote)
 {
-  return __glob_pattern_type (pattern, quote) == 1;
+  return __glob_pattern_type (pattern, quote) == GLOBPAT_SPECIAL;
 }
 weak_alias (__glob_pattern_p, glob_pattern_p)