implemented a builtin echo command in ash. moved the guts of the

echo applet into libbb, and now call bb_echo() from both echo.c
and ash.c



git-svn-id: svn://busybox.net/trunk/busybox@11083 69ca8d6d-28ef-0310-b511-8ec308f3f277

2 files changed, 34 insertions, 33 deletions

diff --git a/shell/Config.in b/shell/Config.in
index 0d39e5bae..813044e2c 100644
--- a/shell/Config.in
+++ b/shell/Config.in
@@ -103,6 +103,21 @@ config CONFIG_ASH_CMDCMD
           you to run the specified command with the specified arguments,
           even when there is an ash builtin command with the same name.
 
+config CONFIG_ASH_BUILTIN_ECHO
+        bool "  Enable builtin version of 'echo'"
+        default n
+        depends on CONFIG_ASH
+        help
+          Enable support for echo, built in to ash.
+
+# this entry also appears in coreutils/Config.in, next to the echo applet
+config CONFIG_FEATURE_FANCY_ECHO
+        bool "  Enable echo options (-n and -e)"
+        default y
+        depends on CONFIG_ASH_BUILTIN_ECHO
+        help
+          This adds options (-n and -e) to echo.
+
 config CONFIG_ASH_MAIL
         bool "  Check for new mail on interactive shells"
         default y
diff --git a/shell/ash.c b/shell/ash.c
index 7f77594a7..9660890f9 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -1249,6 +1249,9 @@ static int commandcmd(int, char **);
 #endif
 static int dotcmd(int, char **);
 static int evalcmd(int, char **);
+#ifdef CONFIG_ASH_BUILTIN_ECHO
+static int echocmd(int, char **);
+#endif
 static int execcmd(int, char **);
 static int exitcmd(int, char **);
 static int exportcmd(int, char **);
@@ -1308,39 +1311,12 @@ struct builtincmd {
         /* unsigned flags; */
 };
 
-#ifdef CONFIG_ASH_CMDCMD
-# ifdef JOBS
-#  ifdef CONFIG_ASH_ALIAS
-#    define COMMANDCMD (builtincmd + 7)
-#    define EXECCMD (builtincmd + 10)
-#  else
-#    define COMMANDCMD (builtincmd + 6)
-#    define EXECCMD (builtincmd + 9)
-#  endif
-# else /* ! JOBS */
-#  ifdef CONFIG_ASH_ALIAS
-#    define COMMANDCMD (builtincmd + 6)
-#    define EXECCMD (builtincmd + 9)
-#  else
-#    define COMMANDCMD (builtincmd + 5)
-#    define EXECCMD (builtincmd + 8)
-#  endif
-# endif /* JOBS */
-#else   /* ! CONFIG_ASH_CMDCMD */
-# ifdef JOBS
-#  ifdef CONFIG_ASH_ALIAS
-#    define EXECCMD (builtincmd + 9)
-#  else
-#    define EXECCMD (builtincmd + 8)
-#  endif
-# else /* ! JOBS */
-#  ifdef CONFIG_ASH_ALIAS
-#    define EXECCMD (builtincmd + 8)
-#  else
-#    define EXECCMD (builtincmd + 7)
-#  endif
-# endif /* JOBS */
-#endif /* CONFIG_ASH_CMDCMD */
+
+#define COMMANDCMD (builtincmd + 5 + \
+        ENABLE_ASH_ALIAS + ENABLE_ASH_JOB_CONTROL)
+#define EXECCMD (builtincmd + 7 + \
+        ENABLE_ASH_CMDCMD + ENABLE_ASH_ALIAS + \
+        ENABLE_ASH_BUILTIN_ECHO + ENABLE_ASH_JOB_CONTROL)
 
 #define BUILTIN_NOSPEC  "0"
 #define BUILTIN_SPECIAL "1"
@@ -1371,6 +1347,9 @@ static const struct builtincmd builtincmd[] = {
         { BUILTIN_REGULAR       "command", commandcmd },
 #endif
         { BUILTIN_SPEC_REG      "continue", breakcmd },
+#ifdef CONFIG_ASH_BUILTIN_ECHO
+        { BUILTIN_REGULAR       "echo", echocmd },
+#endif
         { BUILTIN_SPEC_REG      "eval", evalcmd },
         { BUILTIN_SPEC_REG      "exec", execcmd },
         { BUILTIN_SPEC_REG      "exit", exitcmd },
@@ -8200,6 +8179,13 @@ exitcmd(int argc, char **argv)
         /* NOTREACHED */
 }
 
+#ifdef CONFIG_ASH_BUILTIN_ECHO
+static int
+echocmd(int argc, char **argv)
+{
+        return bb_echo(argc, argv);
+}
+#endif
 /*      $NetBSD: memalloc.c,v 1.27 2003/01/22 20:36:04 dsl Exp $        */
 
 /*