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implement cat thing for realpath and rename too: if flag, call external

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This commit is contained in:
tg 2015-07-05 15:45:18 +00:00
parent b478d334d9
commit b9a8fdf905
3 changed files with 30 additions and 12 deletions
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4
Build.sh
View File

@ -1,5 +1,5 @@
#!/bin/sh
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.679 2015/05/01 16:08:26 tg Exp $'
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.680 2015/07/05 15:45:16 tg Exp $'
#-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
# 2011, 2012, 2013, 2014, 2015
@ -2646,6 +2646,8 @@ MKSH_NOPWNAM skip PAM calls, for -static on glibc or Solaris
MKSH_NO_CMDLINE_EDITING disable command line editing code entirely
MKSH_NO_DEPRECATED_WARNING omit warning when deprecated stuff is run
MKSH_NO_EXTERNAL_CAT omit hack to skip cat builtin when flags passed
MKSH_NO_EXTERNAL_REALPATH same for realpath builtin
MKSH_NO_EXTERNAL_RENAME same for rename builtin
MKSH_NO_LIMITS omit ulimit code
MKSH_NO_SIGSETJMP define if sigsetjmp is broken or not available
MKSH_NO_SIGSUSPEND use sigprocmask+pause instead of sigsuspend

25
exec.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.153 2015/07/05 14:43:05 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.154 2015/07/05 15:45:17 tg Exp $");
#ifndef MKSH_DEFAULT_EXECSHELL
#define MKSH_DEFAULT_EXECSHELL "/bin/sh"
@ -607,16 +607,21 @@ comexec(struct op *t, struct tbl * volatile tp, const char **ap,
subst_exstat = 0;
break;
}
#if !defined(MKSH_NO_EXTERNAL_CAT) || \
!defined(MKSH_NO_EXTERNAL_REALPATH) || \
!defined(MKSH_NO_EXTERNAL_RENAME)
} else if (
#ifndef MKSH_NO_EXTERNAL_CAT
} else if (tp->val.f == c_cat) {
/*
* if we have any flags, do not use the builtin
* in theory, we could allow -u, but that would
* mean to use ksh_getopt here and possibly ad-
* ded complexity and more code and isn't worth
* additional hassle (and the builtin must call
* ksh_getopt already but can't come back here)
*/
tp->val.f == c_cat ||
#endif
#ifndef MKSH_NO_EXTERNAL_REALPATH
tp->val.f == c_realpath ||
#endif
#ifndef MKSH_NO_EXTERNAL_RENAME
tp->val.f == c_rename ||
#endif
0) {
/* if we have any flags, do not use the builtin */
if (ap[1] && ap[1][0] == '-' && ap[1][1] != '\0' &&
/* argument, begins with -, is not - or -- */
(ap[1][1] != '-' || ap[1][2] != '\0'))

13
mksh.1
View File

@ -1,4 +1,4 @@
.\" $MirOS: src/bin/mksh/mksh.1,v 1.369 2015/07/05 15:22:41 tg Exp $
.\" $MirOS: src/bin/mksh/mksh.1,v 1.370 2015/07/05 15:45:18 tg Exp $
.\" $OpenBSD: ksh.1,v 1.160 2015/07/04 13:27:04 feinerer Exp $
.\"-
.\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
@ -3957,6 +3957,12 @@ it's also checked for existence and whether it is a directory; otherwise,
returns 0 if the pathname either exists or can be created immediately,
i.e. all but the last component exist and are directories.
.Pp
Unless compiled with
.Dv MKSH_NO_EXTERNAL_REALPATH ,
if any options are given and this is not a direct builtin call, an external
.Xr realpath 1
utility is invoked instead.
.Pp
.It Xo
.Ic rename
.Op Fl \-
@ -3971,6 +3977,11 @@ This builtin is intended for emergency situations where
.Pa /bin/mv
becomes unusable, and directly calls
.Xr rename 2 .
Unless compiled with
.Dv MKSH_NO_EXTERNAL_RENAME ,
if any options are given and this is not a direct builtin call, an external
.Xr rename 1
utility is invoked instead.
.Pp
.It Ic return Op Ar status
Returns from a function or