Fix STANDALONE_SHELL and ALWAYS_WIN options, last_path_73 by Vladimir N. Oleynik

1 files changed, 23 insertions, 9 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 696d554a9..97a28b1f5 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -3280,20 +3280,34 @@ static void tryexec(char *cmd, char **argv, char **envp)
         int repeated = 0;
 
 #ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
+        int flg_bb = 0;
         char *name = cmd;
-        char **argv_l = argv;
-        int argc_l;
 
 #ifdef CONFIG_FEATURE_SH_APPLETS_ALWAYS_WIN
         name = get_last_path_component(name);
+        if(find_applet_by_name(name) != NULL)
+                flg_bb = 1;
+#else
+        if(strchr(name, '/') == NULL && find_applet_by_name(name) != NULL) {
+                flg_bb = 1;
+        }
 #endif
-        argv_l = envp;
-        for (argc_l = 0; *argv_l != NULL; argv_l++, argc_l++)
-                putenv(*argv_l);
-        argv_l = argv;
-        for (argc_l = 0; *argv_l != NULL; argv_l++, argc_l++)
-                optind = 1;
-        run_applet_by_name(name, argc_l, argv);
+        if(flg_bb) {
+                char **ap;
+                char **new;
+
+                *argv = name;
+                if(strcmp(name, "busybox")) {
+                        for (ap = argv; *ap; ap++);
+                        ap = new = xmalloc((ap - argv + 2) * sizeof(char *));
+                        *ap++ = cmd = "/bin/busybox";
+                        while ((*ap++ = *argv++));
+                        argv = new;
+                        repeated++;
+                } else {
+                        cmd = "/bin/busybox";
+                }
+        }
 #endif
   repeat:
         execve(cmd, argv, envp);