1 files changed, 23 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 8211c766f..865159d20 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -51,6 +51,15 @@
 //config:       default y
 //config:       depends on ASH || SH_IS_ASH || BASH_IS_ASH
 //config:
+//config:config ASH_BASH_NOT_FOUND_HOOK
+//config:       bool "command_not_found_handle hook support"
+//config:       default y
+//config:       depends ASH_BASH_COMPAT
+//config:       help
+//config:       Enable support for the 'command_not_found_handle' hook function,
+//config:       from GNU bash, which allows for alternative command not found
+//config:       handling.
+//config:
 //config:config ASH_JOB_CONTROL
 //config:       bool "Job control"
 //config:       default y
@@ -13227,8 +13236,21 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path)
         /* We failed.  If there was an entry for this command, delete it */
         if (cmdp && updatetbl)
                 delete_cmd_entry();
-        if (act & DO_ERR)
+        if (act & DO_ERR) {
+#if ENABLE_ASH_BASH_NOT_FOUND_HOOK
+                struct tblentry *hookp = cmdlookup("command_not_found_handle", 0);
+                if (hookp && hookp->cmdtype == CMDFUNCTION) {
+                        char *argv[3];
+                        argv[0] = (char*) "command_not_found_handle";
+                        argv[1] = name;
+                        argv[2] = NULL;
+                        evalfun(hookp->param.func, 2, argv, 0);
+                        entry->cmdtype = CMDUNKNOWN;
+                        return;
+                }
+#endif
                 ash_msg("%s: %s", name, errmsg(e, "not found"));
+        }
         entry->cmdtype = CMDUNKNOWN;
         return;