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IEEE 1003.2 (D11.2.2.3) requires that the system's true and false be accessed 

instead of searching $PATH.  The best way to satisfy this requirement is to
make them builtins.

True was allready builtin, this patch adds false.
This commit is contained in:
jtc 1993-07-07 01:11:56 +00:00
parent d670635e8b
commit 67893cfee5
4 changed files with 10 additions and 5 deletions
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3
bin/sh/builtins
View File

@ -36,7 +36,7 @@
#
# @(#)builtins 5.1 (Berkeley) 3/7/91
#
# $Header: /cvsroot/src/bin/sh/Attic/builtins,v 1.3 1993/03/23 00:27:35 cgd Exp $
# $Header: /cvsroot/src/bin/sh/Attic/builtins,v 1.4 1993/07/07 01:11:56 jtc Exp $
#
# This file lists all the builtin commands. The first column is the name
@ -63,6 +63,7 @@ execcmd exec
exitcmd exit
exportcmd export readonly
#exprcmd expr test [
falsecmd false
fgcmd -j fg
getoptscmd getopts
hashcmd hash

3
bin/sh/builtins.def
View File

@ -36,7 +36,7 @@
#
# @(#)builtins 5.1 (Berkeley) 3/7/91
#
# $Header: /cvsroot/src/bin/sh/builtins.def,v 1.3 1993/03/23 00:27:35 cgd Exp $
# $Header: /cvsroot/src/bin/sh/builtins.def,v 1.4 1993/07/07 01:11:56 jtc Exp $
#
# This file lists all the builtin commands. The first column is the name
@ -63,6 +63,7 @@ execcmd exec
exitcmd exit
exportcmd export readonly
#exprcmd expr test [
falsecmd false
fgcmd -j fg
getoptscmd getopts
hashcmd hash

5
bin/sh/eval.c
View File

@ -36,7 +36,7 @@
#ifndef lint
static char sccsid[] = "@(#)eval.c 5.3 (Berkeley) 4/12/91";
static char rcsid[] = "$Header: /cvsroot/src/bin/sh/eval.c,v 1.3 1993/03/23 00:27:50 cgd Exp $";
static char rcsid[] = "$Header: /cvsroot/src/bin/sh/eval.c,v 1.4 1993/07/07 01:11:57 jtc Exp $";
#endif /* not lint */
/*
@ -900,6 +900,9 @@ returncmd(argc, argv) char **argv; {
return ret;
}
falsecmd(argc, argv) char **argv; {
return 1;
}
truecmd(argc, argv) char **argv; {
return 0;

4
bin/sh/parser.c
View File

@ -36,7 +36,7 @@
#ifndef lint
static char sccsid[] = "@(#)parser.c 5.3 (Berkeley) 4/12/91";
static char rcsid[] = "$Header: /cvsroot/src/bin/sh/parser.c,v 1.5 1993/05/02 01:28:43 sef Exp $";
static char rcsid[] = "$Header: /cvsroot/src/bin/sh/parser.c,v 1.6 1993/07/07 01:11:59 jtc Exp $";
#endif /* not lint */
#include "shell.h"
@ -631,7 +631,7 @@ readtoken() {
* check for keywords
*/
if (t == TWORD && !quoteflag) {
register char **pp;
register char *const *pp;
for (pp = parsekwd; *pp; pp++) {
if (**pp == *wordtext && equal(*pp, wordtext)) {