sh: Add exit command

1 files changed, 17 insertions, 0 deletions

diff --git a/userland/minibox/utilities/sh/sh.c b/userland/minibox/utilities/sh/sh.c
index e129044..b00b440 100644
--- a/userland/minibox/utilities/sh/sh.c
+++ b/userland/minibox/utilities/sh/sh.c
@@ -1,5 +1,6 @@
 #include "ast.h"
 #include "lexer.h"
+#include <assert.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -106,6 +107,22 @@ int execute_command(struct AST *ast, int input_fd) {
       return 1;
     }
     return 0;
+  } else if (sv_eq(program, C_TO_SV("exit"))) {
+    uint64_t rc = 0;
+    struct AST *child = ast->children;
+    if (child) {
+      struct sv rest;
+      rc = sv_parse_unsigned_number(child->val.string, &rest);
+      if (rc > 255) {
+        rc = 2;
+      }
+      if (!sv_isempty(rest)) {
+        rc = 2;
+      }
+    }
+    exit(rc);
+    assert(0);
+    return 0;
   }
   return execute_binary(ast, input_fd);
 }