builtins

srcs/builtins/cd.c

@@ -1,5 +1,15 @@
 #include "../../includes/builtins.h"
 
+int	count_args(char **tab)
+{
+	int	i;
+
+	i = 0;
+	while (tab[i])
+		i++;
+	return (i);
+}
+
 char	**update_oldpwd(char **envp)
 {
 	char	**new_envp;
@@ -46,11 +56,50 @@ char	**update_pwd(char **envp)
 	return (new_envp);
 }
 
+int	check_path(char *str)
+{
+	if (access(str, F_OK | X_OK) == -1)
+	{
+		ft_put_s_fd(str, 2);
+		ft_put_s_fd(": ", 2);
+		perror("cd");
+		return (0);
+	}
+	return (1);
+}
+
+// void	expand_var(char *str, char **envp)
+// {
+// 	char	*new_arg;
+// 	char	*tmp;
+// 	int		i;
+// 	int 	j;
+//
+// 	i = -1;
+// 	while (str[++i])
+// 	{
+// 		if (str[i] == '$')
+// 		{
+// 			j = 0;
+// 			while (str[j] && str[j] != ' ')
+// 				j++;
+// 			if (j >= 1)
+// 		}
+// 	}
+// }
+
 char	**builtin_cd(char **arg, char **envp)
 {
-	/*
-	 * OLDPWD = getcwd()
-	 */
+	// char *path;
+
+	if (count_args(arg) >= 3)
+	{
+		ft_putendl_fd("cd: too many arguments", 2);
+		return (envp);
+	}
+	// path = expand_var(arg[1], envp);
+	if (!check_path(arg[1]))
+		return (envp);
 	envp = update_oldpwd(envp);
 	if (chdir(arg[1]) == -1)
 	{
@@ -58,8 +107,5 @@ char	**builtin_cd(char **arg, char **envp)
 		return (envp);
 	}
 	envp = update_pwd(envp);
-	/*
-	 * PWD = getcwd()
-	 */
 	return (envp);
 }

srcs/builtins/echo.c

@@ -41,7 +41,7 @@ char	*ft_getenv(char *str, char **envp)
 	return (&envp[j][len]);
 }
 
-static int	extractenv(char *str, char **envp)
+int	extractenv(char *str, char **envp)
 {
 	int		i;
 	char	*var;