Added support for being a login shell, so things like '-su' or '-sh' (stuff

where argv[0][0]=='-') will now always invoke the shell.  Now you can use
BusyBox as a login shell.
 -Erik

3 files changed, 17 insertions, 0 deletions

diff --git a/Changelog b/Changelog
index c674ab2..11464b6 100644
--- a/Changelog
+++ b/Changelog
@@ -12,6 +12,9 @@
 	    Fix thanks to Arne Bernin <arne@matrix.loopback.org>
 	* Added support for "sh -c command args...", thanks to 
 	    Marius Groeger <mgroeger@sysgo.de>
+	* Added support for being a login shell, so things like
+	    '-su' or '-sh' (stuff where argv[0][0]=='-') will now always 
+	    invoke the shell.  Now you can use BusyBox as a login shell.
 
 	 -Erik Andersen
 
diff --git a/applets/busybox.c b/applets/busybox.c
index 48ca054..486ef4d 100644
--- a/applets/busybox.c
+++ b/applets/busybox.c
@@ -479,6 +479,13 @@ int main(int argc, char **argv)
 
 	*argv = name;
 
+#ifdef BB_SH
+	/* Add in a special case hack -- whenever **argv == '-'
+	 * (i.e. '-su' or '-sh') always invoke the shell */
+	if (**argv == '-')
+		exit(((*(shell_main)) (argc, argv)));
+#endif
+
 	while (a->name != 0) {
 		if (strcmp(name, a->name) == 0) {
 			exit(((*(a->main)) (argc, argv)));
diff --git a/busybox.c b/busybox.c
index 48ca054..486ef4d 100644
--- a/busybox.c
+++ b/busybox.c
@@ -479,6 +479,13 @@ int main(int argc, char **argv)
 
 	*argv = name;
 
+#ifdef BB_SH
+	/* Add in a special case hack -- whenever **argv == '-'
+	 * (i.e. '-su' or '-sh') always invoke the shell */
+	if (**argv == '-')
+		exit(((*(shell_main)) (argc, argv)));
+#endif
+
 	while (a->name != 0) {
 		if (strcmp(name, a->name) == 0) {
 			exit(((*(a->main)) (argc, argv)));