[src/trunk]: src/usr.bin/make Adjust metachar handling to previous behaviour:

[mlelstv <mlelstv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/4811527fb125
branches:  trunk
changeset: 809091:4811527fb125
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Fri Jun 19 08:03:35 2015 +0000

description:
Adjust metachar handling to previous behaviour:
- space and tab are no shell metachars, remove them from generic
  metachar function
- add space and tab as to-be-quoted characters for :Q modifier
- add = and : as characters that require command handling by the shell

diffstat:

 usr.bin/make/compat.c   |  12 ++++++++----
 usr.bin/make/metachar.c |   9 +++++----
 usr.bin/make/var.c      |  10 +++++-----
 3 files changed, 18 insertions(+), 13 deletions(-)

diffs (124 lines):

diff -r 96c2620d7311 -r 4811527fb125 usr.bin/make/compat.c
--- a/usr.bin/make/compat.c     Fri Jun 19 06:32:08 2015 +0000
+++ b/usr.bin/make/compat.c     Fri Jun 19 08:03:35 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: compat.c,v 1.97 2015/06/17 17:43:23 christos Exp $     */
+/*     $NetBSD: compat.c,v 1.98 2015/06/19 08:03:35 mlelstv Exp $      */
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -70,14 +70,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: compat.c,v 1.97 2015/06/17 17:43:23 christos Exp $";
+static char rcsid[] = "$NetBSD: compat.c,v 1.98 2015/06/19 08:03:35 mlelstv Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)compat.c   8.2 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: compat.c,v 1.97 2015/06/17 17:43:23 christos Exp $");
+__RCSID("$NetBSD: compat.c,v 1.98 2015/06/19 08:03:35 mlelstv Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -274,9 +274,13 @@
      * Search for meta characters in the command. If there are no meta
      * characters, there's no need to execute a shell to execute the
      * command.
+     *
+     * Additionally variable assignments and empty commands
+     * go to the shell. Therefore treat '=' and ':' like shell
+     * meta characters as documented in make(1).
      */
     
-    useShell = hasmeta(cmd);
+    useShell = hasmeta(cmd) || strchr(cmd,'=') || strchr(cmd,':');
 #endif
 
     /*
diff -r 96c2620d7311 -r 4811527fb125 usr.bin/make/metachar.c
--- a/usr.bin/make/metachar.c   Fri Jun 19 06:32:08 2015 +0000
+++ b/usr.bin/make/metachar.c   Fri Jun 19 08:03:35 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: metachar.c,v 1.4 2015/06/18 19:49:08 christos Exp $    */
+/*     $NetBSD: metachar.c,v 1.5 2015/06/19 08:03:35 mlelstv Exp $     */
 
 /*-
  * Copyright (c) 2015 The NetBSD Foundation, Inc.
@@ -38,7 +38,7 @@
 #endif
 
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: metachar.c,v 1.4 2015/06/18 19:49:08 christos Exp $");
+__RCSID("$NetBSD: metachar.c,v 1.5 2015/06/19 08:03:35 mlelstv Exp $");
 #endif
 
 #include "metachar.h"
@@ -55,13 +55,13 @@
 //    nul   soh   stx   etx   eot   enq   ack   bel
        1,    0,    0,    0,    0,    0,    0,    0,
 //     bs    ht    nl    vt    np    cr    so    si
-       0,    1,    1,    0,    0,    0,    0,    0,
+       0,    0,    1,    0,    0,    0,    0,    0,
 //    dle   dc1   dc2   dc3   dc4   nak   syn   etb
        0,    0,    0,    0,    0,    0,    0,    0,
 //    can    em   sub   esc    fs    gs    rs    us
        0,    0,    0,    0,    0,    0,    0,    0,
 //     sp     !     "     #     $     %     &     '
-       1,    1,    1,    1,    1,    0,    1,    1,
+       0,    1,    1,    1,    1,    0,    1,    1,
 //      (     )     *     +     ,     -     .     /
        1,    1,    1,    0,    0,    0,    0,    0,
 //      0     1     2     3     4     5     6     7
@@ -85,3 +85,4 @@
 //      x     y     z     {     |     }     ~   del
        0,    0,    0,    1,    1,    1,    1,    0,
 };
+
diff -r 96c2620d7311 -r 4811527fb125 usr.bin/make/var.c
--- a/usr.bin/make/var.c        Fri Jun 19 06:32:08 2015 +0000
+++ b/usr.bin/make/var.c        Fri Jun 19 08:03:35 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: var.c,v 1.193 2015/06/17 17:43:23 christos Exp $       */
+/*     $NetBSD: var.c,v 1.194 2015/06/19 08:03:35 mlelstv Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: var.c,v 1.193 2015/06/17 17:43:23 christos Exp $";
+static char rcsid[] = "$NetBSD: var.c,v 1.194 2015/06/19 08:03:35 mlelstv Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)var.c      8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: var.c,v 1.193 2015/06/17 17:43:23 christos Exp $");
+__RCSID("$NetBSD: var.c,v 1.194 2015/06/19 08:03:35 mlelstv Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -2246,7 +2246,7 @@
 /*-
  *-----------------------------------------------------------------------
  * VarQuote --
- *     Quote shell meta-characters in the string
+ *     Quote shell meta-characters and space characters in the string
  *
  * Results:
  *     The quoted string
@@ -2275,7 +2275,7 @@
            Buf_AddBytes(&buf, nlen, newline);
            continue;
        }
-       if (ismeta((unsigned char)*str))
+       if (*str == ' ' || *str == '\t' || ismeta((unsigned char)*str))
            Buf_AddByte(&buf, '\\');
        Buf_AddByte(&buf, *str);
     }