From 0a3efb2bd9ca15425f02f9dd0b310ee74d2ff811 Mon Sep 17 00:00:00 2001
From: iridiumR <i@iridium.cyou>
Date: Sun, 18 Sep 2022 23:35:26 +0800
Subject: [PATCH] feat(builtin): add the founction to read exit status

---
 builtin.c | 14 +++++++++++---
 exec.c    |  4 ++--
 loop.c    | 20 +++++++++++---------
 3 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/builtin.c b/builtin.c
index e91217d..9531412 100644
--- a/builtin.c
+++ b/builtin.c
@@ -2,7 +2,7 @@
  * @Author: 1ridic
  * @Date: 2022-09-18 14:16:19
  * @Last Modified by: 1ridic
- * @Last Modified time: 2022-09-18 20:46:12
+ * @Last Modified time: 2022-09-18 23:32:50
  */
 #include "builtin.h"
 #include <stdio.h>
@@ -18,12 +18,13 @@ int dish_clear(char **args);
 int dish_setenv(char **args);
 int dish_echo(char **args);
 int dish_unset(char **args);
+int dish_laststatus(char **args);
 
-char *builtin_cmd[] = {"cd", "help", "exit", "clear", "setenv", "echo", "unset"};
+char *builtin_cmd[] = {"cd", "help", "exit", "clear", "setenv", "echo", "unset","laststatus"};
 
 int (*builtin_func[])(char **) = {&dish_cd,    &dish_help, &dish_exit,
                                   &dish_clear, &dish_setenv,  &dish_echo,
-                                  &dish_unset};
+                                  &dish_unset,&dish_laststatus};
 
 int getBuiltinNum() { return sizeof(builtin_cmd) / sizeof(char *); }
 
@@ -78,4 +79,11 @@ int dish_unset(char **args) {
     i++;
   }
   return 0;
+}
+
+int dish_laststatus(char **args)
+{
+  extern int status;
+  fprintf(stdout,"%d\n",status);
+  return 0;
 }
\ No newline at end of file
diff --git a/exec.c b/exec.c
index 5413e8a..4f0cd04 100644
--- a/exec.c
+++ b/exec.c
@@ -2,7 +2,7 @@
  * @Author: 1ridic
  * @Date: 2022-09-18 14:14:23
  * @Last Modified by: 1ridic
- * @Last Modified time: 2022-09-18 23:21:56
+ * @Last Modified time: 2022-09-18 23:31:39
  */
 #include "builtin.h"
 #include <stdio.h>
@@ -45,7 +45,7 @@ int forkExec(char **args) {
       return WTERMSIG(stat_val);
     }
   }
-  return -1;
+  return -100;
 }
 
 int commandExec(char **args) {
diff --git a/loop.c b/loop.c
index f8f9cc7..dfc004a 100644
--- a/loop.c
+++ b/loop.c
@@ -1,24 +1,26 @@
 /*
- * @Author: 1ridic 
- * @Date: 2022-09-18 14:13:53 
- * @Last Modified by:   1ridic 
- * @Last Modified time: 2022-09-18 14:13:53 
+ * @Author: 1ridic
+ * @Date: 2022-09-18 14:13:53
+ * @Last Modified by: 1ridic
+ * @Last Modified time: 2022-09-18 23:32:02
  */
+#include "loop.h"
+#include "exec.h"
+#include "line.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "line.h"
-#include "loop.h"
-#include "exec.h"
+
+int status;
 
 int loop() {
-  
+
   char *line;
   char **args;
   printf("> ");
   line = readLine();
   args = splitLine(line);
-  commandExec(args);
+  status = commandExec(args);
   free(line);
   free(args);
   return 0;