From: Lionel Sambuc <lionel@minix3.org>
Date: Wed, 30 Jan 2013 14:36:51 +0000 (+0100)
Subject: Fix command line history in ash
X-Git-Tag: v3.2.1~44
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/openssl_button.gif?a=commitdiff_plain;h=252a83f614501a9dca8bd3238a0ce31d315ab943;p=minix.git

Fix command line history in ash

Also did some cleanup in ash sources, to make minix modifications
more obvious, as well as some simplifications (by removing code which
is never compiled)

Removed EDITLINE support, use libedit, which does the termcap/terminfo
handling.

Change-Id: I19f7f425ed6a61298844631f9d7f3173cf7f30c0
---

diff --git a/commands/ash/Makefile b/commands/ash/Makefile
index 9075a9f22..b0a06dec7 100644
--- a/commands/ash/Makefile
+++ b/commands/ash/Makefile
@@ -8,8 +8,6 @@ MAN=
 
 # Enable this line to disable command line editing
 #EDIT=-DNO_HISTORY
-# Enable this line to use the editline library instead of libedit
-EDIT=-DEDITLINE
 
 # Enable this line if your system does not have a <paths.h>
 #NO_PATHS_H=-DNO_PATHS_H
@@ -18,7 +16,7 @@ EDIT=-DEDITLINE
 NO_JOBS=-DJOBS=0
 MKB_NO_JOBS=-j
 
-SRCS=	alias.c arith.y arith_lex.l cd.c eval.c exec.c expand.c \
+SRCS=	alias.c arith.y arith_lex.l cd.c complete.c eval.c exec.c expand.c \
 	histedit.c input.c jobs.c mail.c main.c memalloc.c miscbltin.c \
 	mystring.c options.c output.c parser.c redir.c show.c \
 	trap.c var.c setmode.c
diff --git a/commands/ash/bltin/echo.c b/commands/ash/bltin/echo.c
index 9051c0c2c..72bb60e52 100644
--- a/commands/ash/bltin/echo.c
+++ b/commands/ash/bltin/echo.c
@@ -41,18 +41,8 @@ __FBSDID("$FreeBSD: src/bin/sh/bltin/echo.c,v 1.14 2004/04/06 20:06:53 markm Exp
  * Echo command.
  */
 
-#ifdef __minix
-#define MINIX
-#endif
-
 #include "bltin.h"
 
-#ifndef MINIX
-/* #define eflag 1 */
-#else
-#undef eflag
-#endif
-
 int
 echocmd(argc, argv)
 	int argc;
@@ -63,7 +53,7 @@ echocmd(argc, argv)
 	char c;
 	int count;
 	int nflag = 0;
-#ifndef eflag
+#ifdef __minix
 	int eflag = 0;
 #endif
 
@@ -71,7 +61,7 @@ echocmd(argc, argv)
 	if (argc)
 		ap++;
 	if ((p = *ap) != NULL) {
-#ifdef MINIX
+#ifdef __minix
 		if (equal(p, "--")) {
 			ap++;
 		}
@@ -80,7 +70,7 @@ echocmd(argc, argv)
 			nflag++;
 			ap++;
 		} else if (equal(p, "-e")) {
-#ifndef eflag
+#ifdef __minix
 			eflag++;
 #endif
 			ap++;
diff --git a/commands/ash/builtins.def b/commands/ash/builtins.def
index 0deae5977..b55ba83eb 100644
--- a/commands/ash/builtins.def
+++ b/commands/ash/builtins.def
@@ -47,8 +47,9 @@
 
 bltincmd	builtin
 commandcmd	command
-#alloccmd	alloc
+#if JOBS
 bgcmd -j	bg
+#endif
 breakcmd	break continue
 #catfcmd	catf
 cdcmd		cd chdir
@@ -62,15 +63,17 @@ exportcmd	export readonly
 exprcmd		expr test [
 falsecmd	false
 histcmd -h	fc
+#if JOBS
 fgcmd -j	fg
+#endif
 getoptscmd	getopts
 hashcmd		hash
 jobidcmd	jobid
 jobscmd		jobs
-#linecmd	line
 localcmd	local
-#nlechocmd	nlecho
+#ifndef SMALL
 #printfcmd	printf
+#endif
 pwdcmd		pwd
 readcmd		read
 returncmd	return
@@ -84,11 +87,7 @@ umaskcmd	umask
 unaliascmd	unalias
 unsetcmd	unset
 waitcmd		wait
-#foocmd		foo
 aliascmd	alias
 ulimitcmd	ulimit
 bindcmd		bind
 wordexpcmd	wordexp
-
-#
-# $PchId: builtins.def,v 1.5 2006/03/31 10:50:57 philip Exp $
diff --git a/commands/ash/eval.c b/commands/ash/eval.c
index a44ead002..4c1df9c55 100644
--- a/commands/ash/eval.c
+++ b/commands/ash/eval.c
@@ -72,7 +72,7 @@ __FBSDID("$FreeBSD: src/bin/sh/eval.c,v 1.42 2004/04/06 20:06:51 markm Exp $");
 #include "error.h"
 #include "show.h"
 #include "mystring.h"
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 #include "myhistedit.h"
 #endif
 
@@ -194,7 +194,7 @@ evaltree(union node *n, int flags)
 		exitstatus = 0;
 		goto out;
 	}
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 	displayhist = 1;	/* show history substitutions done with fc */
 #endif
 	TRACE(("evaltree(0x%lx: %d) called\n", (long)n, n->type));
diff --git a/commands/ash/exec.c b/commands/ash/exec.c
index 923515fc6..e6a12e9ad 100644
--- a/commands/ash/exec.c
+++ b/commands/ash/exec.c
@@ -155,7 +155,7 @@ tryexec(char *cmd, char **argv, char **envp)
 	int e;
 
 	execve(cmd, argv, envp);
-#if !__minix_vmd
+
 	e = errno;
 	if (e == ENOEXEC) {
 		initshellproc();
@@ -166,7 +166,6 @@ tryexec(char *cmd, char **argv, char **envp)
 		/*NOTREACHED*/
 	}
 	errno = e;
-#endif
 }
 
 /*
diff --git a/commands/ash/histedit.c b/commands/ash/histedit.c
index 1e6ed1a00..e341c56d8 100644
--- a/commands/ash/histedit.c
+++ b/commands/ash/histedit.c
@@ -58,7 +58,7 @@ __FBSDID("$FreeBSD: src/bin/sh/histedit.c,v 1.26 2004/04/06 20:06:51 markm Exp $
 #include "output.h"
 #include "mystring.h"
 #include "builtins.h"
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 #include "myhistedit.h"
 #include "complete.h"
 #include "error.h"
@@ -179,7 +179,7 @@ sethistsize(hs)
 		if (hs == NULL || *hs == '\0' ||
 		   (histsize = atoi(hs)) < 0)
 			histsize = 100;
-		history(hist, &he, H_EVENT, histsize);
+		history(hist, &he, H_SETSIZE, histsize);
 	}
 }
 
@@ -526,7 +526,7 @@ bindcmd(int argc, char **argv)
 	error("not compiled with line editing support");
 	return (0);
 }
-#endif /* !NO_HISTORY && !EDITLINE */
+#endif /* !NO_HISTORY */
 
 /*
  * $PchId: histedit.c,v 1.6 2006/04/10 14:52:58 philip Exp $
diff --git a/commands/ash/input.c b/commands/ash/input.c
index fb234d2a6..15fa04ccd 100644
--- a/commands/ash/input.c
+++ b/commands/ash/input.c
@@ -63,16 +63,7 @@ __FBSDID("$FreeBSD: src/bin/sh/input.c,v 1.22 2004/04/06 20:06:51 markm Exp $");
 #include "error.h"
 #include "alias.h"
 #include "parser.h"
-#ifdef EDITLINE
-#ifdef __minix_vmd
-#include <readline/readline.h>
-#else
-/* What about other systems? */
-char *readline(char *prompt);
-#endif
-#else
 #include "myhistedit.h"
-#endif
 #include "redir.h"
 #include "trap.h"
 
@@ -118,9 +109,7 @@ STATIC struct parsefile *parsefile = &basepf;	/* current input file */
 int init_editline = 0;		/* editline library initialized? */
 int whichprompt;		/* -1 == PSE, 1 == PS1, 2 == PS2 */
 
-#ifndef EDITLINE
 EditLine *el;			/* cookie for editline package */
-#endif
 
 STATIC void pushfile(void);
 static int preadfd(void);
@@ -193,7 +182,7 @@ preadfd(void)
 	int nr;
 	parsenextc = parsefile->buf;
 
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 	if (el != NULL && gotwinch) {
 		gotwinch = 0;
 		el_resize(el);
@@ -201,37 +190,6 @@ preadfd(void)
 #endif
 retry:
 #ifndef NO_HISTORY
-#ifdef EDITLINE
-	if (parsefile->fd == 0 && editable) {
-		static const char *rl_cp= NULL;
-		static size_t rl_off= 0;
-
-		if (!rl_cp)
-		{
-			rl_cp = readline(getprompt(NULL));
-			if (rl_cp == NULL)
-				nr = 0;
-		}
-		if (rl_cp)
-		{
-			nr= strlen(rl_cp+rl_off);
-			if (nr >= BUFSIZ-1)
-			{
-				nr= BUFSIZ-1;
-				(void) memcpy(parsenextc, rl_cp+rl_off, nr);
-				rl_off += nr;
-			}
-			else
-			{
-				(void) memcpy(parsenextc, rl_cp+rl_off, nr);
-				parsenextc[nr++]= '\n';
-				free((void *)rl_cp);
-				rl_cp= NULL;
-				rl_off= 0;
-			}
-		}
-	} else
-#else /* !EDITLINE */
 	if (parsefile->fd == 0 && el) {
 		const char *rl_cp;
 
@@ -243,7 +201,6 @@ retry:
 			(void) strcpy(parsenextc, rl_cp);
 		}
 	} else
-#endif /* !EDITLINE */
 #endif
 		nr = read(parsefile->fd, parsenextc, BUFSIZ - 1);
 
@@ -343,7 +300,7 @@ check:
 	savec = *q;
 	*q = '\0';
 
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 	if (parsefile->fd == 0 && hist && something) {
 		HistEvent he;
 		INTOFF;
diff --git a/commands/ash/miscbltin.c b/commands/ash/miscbltin.c
index 2b289160e..d63b1e27d 100644
--- a/commands/ash/miscbltin.c
+++ b/commands/ash/miscbltin.c
@@ -91,9 +91,7 @@ readcmd(int argc __unused, char **argv __unused)
 	struct timeval tv;
 	char *tvptr;
 #ifndef __minix
-#ifndef __minix_vmd
 	fd_set ifds;
-#endif
 	struct termios told, tnew;
 	int tsaved;
 #endif
diff --git a/commands/ash/options.c b/commands/ash/options.c
index 5b8706d03..c93ca2be1 100644
--- a/commands/ash/options.c
+++ b/commands/ash/options.c
@@ -59,7 +59,7 @@ __FBSDID("$FreeBSD: src/bin/sh/options.c,v 1.21 2004/04/06 20:06:51 markm Exp $"
 #include "error.h"
 #include "mystring.h"
 #include "builtins.h"
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 #include "myhistedit.h"
 #endif
 
@@ -129,7 +129,7 @@ void
 optschanged(void)
 {
 	setinteractive(iflag);
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 	histedit();
 #endif
 	setjobctl(mflag);
diff --git a/commands/ash/parser.c b/commands/ash/parser.c
index 20d462a88..e06521400 100644
--- a/commands/ash/parser.c
+++ b/commands/ash/parser.c
@@ -58,7 +58,7 @@ __FBSDID("$FreeBSD: src/bin/sh/parser.c,v 1.51.2.1 2005/03/03 03:43:20 obrien Ex
 #include "alias.h"
 #include "show.h"
 #include "eval.h"
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 #include "myhistedit.h"
 #endif
 
@@ -1556,11 +1556,7 @@ setprompt(int which)
 	whichprompt = which;
 
 #ifndef NO_HISTORY
-#ifdef EDITLINE
-	if (!editable)
-#else
 	if (!el)
-#endif /* EDITLINE */
 #endif /* !NO_HISTORY */
 		out2str(getprompt(NULL));
 }
diff --git a/commands/ash/shell.h b/commands/ash/shell.h
index 7e33f18c1..9d76acf0d 100644
--- a/commands/ash/shell.h
+++ b/commands/ash/shell.h
@@ -81,11 +81,6 @@ extern char nullstr[1];		/* null string */
 #define TRACE(param)
 #endif
 
-#if defined(__minix) && !defined(__NBSD_LIBC)
-typedef long quad_t;		/* XXX */
-typedef unsigned long u_quad_t;	/* XXX */
-#endif
-
 /*
  * $PchId: shell.h,v 1.7 2006/05/22 12:47:00 philip Exp $
  */
diff --git a/commands/ash/trap.c b/commands/ash/trap.c
index a1daa08eb..56dc8572f 100644
--- a/commands/ash/trap.c
+++ b/commands/ash/trap.c
@@ -57,19 +57,11 @@ __FBSDID("$FreeBSD: src/bin/sh/trap.c,v 1.29 2004/04/06 20:06:51 markm Exp $");
 #include "error.h"
 #include "trap.h"
 #include "mystring.h"
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 #include "myhistedit.h"
 #endif
 #include "builtins.h"
 
-#if defined(__minix)
-#if !defined(__NBSD_LIBC)
-#define NO_SIGINTERRUPT
-#endif
-#define NO_SYS_SIGNAME
-#define NO_SYS_SIGLIST
-#endif
-
 typedef void (*sig_T)(int);
 
 /*
@@ -511,7 +503,7 @@ int flag;
 }
 #endif
 
-#ifdef NO_SYS_SIGNAME
+#ifdef __minix
 static char *strsigname(sig)
 int sig;
 {
@@ -524,11 +516,7 @@ int sig;
 	case SIGILL:	return "ill";		/*  4 */
 	case SIGTRAP:	return "trap";		/*  5 */
 	case SIGABRT:	return "abrt";		/*  6 */
-#ifdef __minix_vmd
-	case SIGEMT:	return "emt";		/*  7 */
-#else
 	case SIGBUS:	return "bus";		/*  7 */
-#endif
 	case SIGFPE:	return "fpe";		/*  8 */
 	case SIGKILL:	return "kill";		/*  9 */
 	case SIGUSR1:	return "usr1";		/* 10 */
@@ -537,11 +525,7 @@ int sig;
 	case SIGPIPE:	return "pipe";		/* 13 */
 	case SIGALRM:	return "alrm";		/* 14 */
 	case SIGTERM:	return "term";		/* 15 */
-#ifdef __minix_vmd
-	case 16:	return "Signal 16";	/* 16 */
-#else
 	case SIGEMT:	return "emt";		/* 16 */
-#endif
 	case SIGCHLD:	return "chld";		/* 17 */
 	case SIGCONT:	return "cont";		/* 18 */
 	case SIGSTOP:	return "stop";		/* 19 */
@@ -551,9 +535,6 @@ int sig;
 	case SIGWINCH:	return "winch";		/* 23 */
 	case SIGVTALRM:	return "vtalrm";	/* 24 */
 	case SIGPROF:	return "prof";		/* 25 */
-#ifdef __minix_vmd
-	case SIGFPEMU:	return "fpemu";		/* 30 */
-#endif
 	default:	return "Signal n";
 	}
 }
@@ -565,7 +546,7 @@ int sig;
 }
 #endif
 
-#ifdef NO_SYS_SIGLIST
+#ifdef __minix
 #include "signames.h"
 char *strsiglist(sig)
 int sig;
diff --git a/commands/ash/var.c b/commands/ash/var.c
index b6665b29f..061d3a5a0 100644
--- a/commands/ash/var.c
+++ b/commands/ash/var.c
@@ -66,7 +66,7 @@ __FBSDID("$FreeBSD: src/bin/sh/var.c,v 1.26.2.1 2004/09/30 04:41:55 des Exp $");
 #include "error.h"
 #include "mystring.h"
 #include "parser.h"
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 #include "myhistedit.h"
 #endif
 
@@ -102,7 +102,7 @@ struct var vvers;
 STATIC struct var voptind;
 
 STATIC const struct varinit varinit[] = {
-#if !defined(NO_HISTORY) && !defined(EDITLINE)
+#if !defined(NO_HISTORY)
 	{ &vhistsize,	VSTRFIXED|VTEXTFIXED|VUNSET,	"HISTSIZE=",
 	  sethistsize },
 #endif
diff --git a/docs/UPDATING b/docs/UPDATING
index d012c819e..04f49e13a 100644
--- a/docs/UPDATING
+++ b/docs/UPDATING
@@ -1,3 +1,12 @@
+20130130:
+	With the shell update, and following update of 'test', some
+	modifications are needed in .profile and .ashrc.
+	If you use the defaults, simply execute the following for all
+	of your users:
+
+	# cp etc/ast/.ashrc ~/
+	# cp etc/ast/.profile ~/
+
 20130114:
 	The terminfo update is also linked to the databases functions,
 	which means the tool used to generate the termcap entries has to
diff --git a/etc/ast/.ashrc b/etc/ast/.ashrc
index 5d92c0466..5757405c2 100644
--- a/etc/ast/.ashrc
+++ b/etc/ast/.ashrc
@@ -12,8 +12,9 @@ export PATH=$HOME/bin:/usr/local/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/pkg/bin:
 } # End of no-repeat.
 
 # Let cd display the current directory on the status line.
-if [ "$-" : '.*i.*' -a -t 0 -a -f /usr/bin/tget ] && tget -flag hs
+if [ -t 0 -a -f /usr/bin/tget ] && tget -flag hs
 then
+case $- in *i*)
 	hostname=$(expr $(uname -n) : '\([^.]*\)')
 	eval "cd()
 	{
@@ -24,4 +25,6 @@ then
 	}"
 	unset hostname
 	cd .
+	;;
+esac
 fi
diff --git a/etc/ast/.profile b/etc/ast/.profile
index 490b26d32..b74b16542 100644
--- a/etc/ast/.profile
+++ b/etc/ast/.profile
@@ -1,7 +1,7 @@
 # Login shell profile.
 
-# Erase character and erase line interrupt keys
-stty sane erase '^H' kill '^U'
+# Activate emacs keybindings and command line history support
+set -o emacs
 
 # Check terminal type.
 case $TERM in
diff --git a/lib/libedit/makelist b/lib/libedit/makelist
index 588397bc6..bbb512bff 100644
--- a/lib/libedit/makelist
+++ b/lib/libedit/makelist
@@ -201,11 +201,12 @@ _EOF
 
 #	generate editline.c from various .c files
 #
+#	LSC: Needed by MINIX's ASH, so do not hide those
 -e)
 	echo "$FILES" | tr ' ' '\012' | $AWK '
 	BEGIN {
 	    printf("/* Automatically generated file, do not edit */\n");
-	    printf("#define protected static\n");
+	    printf("#define protected /* LSC: see makelist static*/\n");
 	    printf("#define SCCSID\n");
 	}
 	{