msh: aliased to hush

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

TODO

@@ -16,14 +16,10 @@ Rob Landley suggested these:
   Figure out where we need utf8 support, and add it.
 
   sh
-    The command shell situation is a big mess.  We have three different
+    The command shell situation is a mess.  We have two different
     shells that don't really share any code, and the "standalone shell" doesn't
     work all that well (especially not in a chroot environment), due to apps not
     being reentrant.
-    lash is phased out. hush can be configured down to be nearly as small,
-    but less buggy :)
-  init
-    General cleanup (should use ENABLE_FEATURE_INIT_SYSLOG).
   Do a SUSv3 audit
     Look at the full Single Unix Specification version 3 (available online at
     "http://www.opengroup.org/onlinepubs/009695399/nfindex.html") and
@@ -265,7 +261,7 @@ Minor stuff:
 ---
   possible code duplication ingroup() and is_a_group_member()
 ---
-  Move __get_hz() to a better place and (re)use it in route.c, ash.c, msh.c
+  Move __get_hz() to a better place and (re)use it in route.c, ash.c
 ---
   See grep -r strtod
   Alot of duplication that wants cleanup.

include/applets.h

@@ -347,7 +347,6 @@ IF_SETSID(APPLET(setsid, _BB_DIR_USR_BIN, _BB_SUID_DROP))
 IF_SETUIDGID(APPLET_ODDNAME(setuidgid, chpst, _BB_DIR_USR_BIN, _BB_SUID_DROP, setuidgid))
 IF_FEATURE_SH_IS_ASH(APPLET_ODDNAME(sh, ash, _BB_DIR_BIN, _BB_SUID_DROP, sh))
 IF_FEATURE_SH_IS_HUSH(APPLET_ODDNAME(sh, hush, _BB_DIR_BIN, _BB_SUID_DROP, sh))
-IF_FEATURE_SH_IS_MSH(APPLET_ODDNAME(sh, msh, _BB_DIR_BIN, _BB_SUID_DROP, sh))
 IF_SHA1SUM(APPLET_ODDNAME(sha1sum, md5_sha1_sum, _BB_DIR_USR_BIN, _BB_SUID_DROP, sha1sum))
 IF_SHA256SUM(APPLET_ODDNAME(sha256sum, md5_sha1_sum, _BB_DIR_USR_BIN, _BB_SUID_DROP, sha256sum))
 IF_SHA512SUM(APPLET_ODDNAME(sha512sum, md5_sha1_sum, _BB_DIR_USR_BIN, _BB_SUID_DROP, sha512sum))

include/usage.h

@@ -119,13 +119,10 @@
 #define ash_full_usage ""
 #define hush_trivial_usage NOUSAGE_STR
 #define hush_full_usage ""
+#define lash_trivial_usage NOUSAGE_STR
+#define lash_full_usage ""
 #define msh_trivial_usage NOUSAGE_STR
 #define msh_full_usage ""
-#define bbsh_trivial_usage \
-       "[FILE]...\n" \
-       "or: bbsh -c command [args]..."
-#define bbsh_full_usage "\n\n" \
-       "The bbsh shell (command interpreter)"
 
 #define awk_trivial_usage \
        "[OPTIONS] [AWK_PROGRAM] [FILE]..."
@@ -3904,12 +3901,6 @@
        "and will not be affected by keyboard signals (Ctrl-C etc).\n" \
        "See setsid(2) for details." \
 
-#define lash_trivial_usage \
-       "[FILE]...\n" \
-       "or: sh -c command [args]..."
-#define lash_full_usage "\n\n" \
-       "lash is deprecated, please use hush"
-
 #define last_trivial_usage \
        ""IF_FEATURE_LAST_FANCY("[-HW] [-f file]")
 #define last_full_usage "\n\n" \

shell/Config.in

@@ -24,9 +24,9 @@ config FEATURE_SH_IS_HUSH
 ####	select LASH
 ####	bool "lash"
 
-config FEATURE_SH_IS_MSH
-	select MSH
-	bool "msh"
+####config FEATURE_SH_IS_MSH
+####	select MSH
+####	bool "msh"
 
 config FEATURE_SH_IS_NONE
 	bool "none"
@@ -260,6 +260,7 @@ config LASH
 config MSH
 	bool "msh (deprecated: please use hush)"
 	default n
+	select HUSH
 	help
 	  msh is deprecated and will be removed, please migrate to hush.
 	  If there is a feature msh has but hush does not, please let us know.

shell/Kbuild

@@ -7,6 +7,5 @@
 lib-y:=
 lib-$(CONFIG_ASH)      += ash.o ash_ptr_hack.o
 lib-$(CONFIG_HUSH)     += hush.o match.o
-lib-$(CONFIG_MSH)      += msh.o
 lib-$(CONFIG_CTTYHACK) += cttyhack.o
 lib-$(CONFIG_SH_MATH_SUPPORT) += math.o

shell/hush.c

@@ -6746,6 +6746,15 @@ int lash_main(int argc, char **argv)
 }
 #endif
 
+#if ENABLE_MSH
+int msh_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int msh_main(int argc, char **argv)
+{
+	//bb_error_msg("msh is deprecated, please use hush instead");
+	return hush_main(argc, argv);
+}
+#endif
+
 
 /*
  * Built-ins