From 5f08fd6e7794dcdfb74c93af16dfbc903458b0ea Mon Sep 17 00:00:00 2001
From: iceyrazor <iceyrazor@mailfence.com>
Date: Mon, 9 Feb 2026 17:35:25 -0600
Subject: split. better hostname

---
 src/lsh_builtins.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 src/lsh_builtins.c

(limited to 'src/lsh_builtins.c')

diff --git a/src/lsh_builtins.c b/src/lsh_builtins.c
new file mode 100644
index 0000000..34aced5
--- /dev/null
+++ b/src/lsh_builtins.c
@@ -0,0 +1,91 @@
+#ifndef shell_builtins
+#define shell_builtins
+
+#include "lsh_main_func.c"
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+  Function Declarations for builtin shell commands:
+ */
+
+int lsh_cd(char **args);
+int lsh_help(char **args);
+int lsh_exit(char **args);
+
+/*
+  List of builtin commands, followed by their corresponding functions.
+ */
+char *builtin_str[] = {
+  "cd",
+  "help",
+  "exit"
+};
+
+int (*builtin_func[]) (char **) = {
+  &lsh_cd,
+  &lsh_help,
+  &lsh_exit
+};
+
+int lsh_num_builtins() {
+  return sizeof(builtin_str) / sizeof(char *);
+}
+
+/*
+  Builtin function implementations.
+*/
+int lsh_cd(char **args)
+{
+  if (args[1] == NULL) {
+    fprintf(stderr, "lsh: expected argument to \"cd\"\n");
+  } else {
+    if (chdir(args[1]) != 0) {
+      perror("lsh");
+    }
+  }
+  return 1;
+}
+
+int lsh_help(char **args)
+{
+  int i;
+  printf("Stephen Brennan's LSH\n");
+  printf("Type program names and arguments, and hit enter.\n");
+  printf("The following are built in:\n");
+
+  for (i = 0; i < lsh_num_builtins(); i++) {
+    printf("  %s\n", builtin_str[i]);
+  }
+
+  printf("Use the man command for information on other programs.\n");
+  return 1;
+}
+
+int lsh_exit(char **args)
+{
+  return 0;
+}
+
+
+
+int lsh_execute(char **args)
+{
+  int i;
+
+  if (args[0] == NULL) {
+    // An empty command was entered.
+    return 1;
+  }
+
+  for (i = 0; i < lsh_num_builtins(); i++) {
+    if (strcmp(args[0], builtin_str[i]) == 0) {
+      return (*builtin_func[i])(args);
+    }
+  }
+
+  return lsh_launch(args);
+}
+
+#endif
-- 
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