Fixing exit error message and overflow detection

7 files changed, 44 insertions, 31 deletions

diff --git a/src/builtin/builtin.c b/src/builtin/builtin.c
index 9c5fe9e..08abcd8 100644
--- a/src/builtin/builtin.c
+++ b/src/builtin/builtin.c
@@ -6,7 +6,7 @@
 /*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/04/01 17:11:01 by charles           #+#    #+#             */
-/*   Updated: 2020/07/14 11:06:37 by charles          ###   ########.fr       */
+/*   Updated: 2020/07/17 11:16:57 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -22,13 +22,13 @@
 */
 
 static t_builtin_entry	g_builtin_lookup[] = {
-	{"echo", builtin_echo},
-	{"cd", builtin_cd},
-	{"pwd", builtin_pwd},
-	{"export", builtin_export},
-	{"unset", builtin_unset},
-	{"env", builtin_env},
-	{"exit", builtin_exit},
+	{"echo", builtin_echo, true},
+	{"cd", builtin_cd, false},
+	{"pwd", builtin_pwd, true},
+	{"export", builtin_export, false},
+	{"unset", builtin_unset, false},
+	{"env", builtin_env, false},
+	{"exit", builtin_exit, false},
 };
 
 t_builtin_entry			*builtin_search_func(char *name)
diff --git a/src/builtin/exit.c b/src/builtin/exit.c
index 15271f6..860325e 100644
--- a/src/builtin/exit.c
+++ b/src/builtin/exit.c
@@ -6,7 +6,7 @@
 /*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/04/01 17:10:16 by charles           #+#    #+#             */
-/*   Updated: 2020/07/13 15:35:44 by charles          ###   ########.fr       */
+/*   Updated: 2020/07/17 16:36:03 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,27 +19,32 @@
 
 int	builtin_exit(char **argv, t_env env)
 {
-	int	status;
+	long	status;
+	char	*after;
 
 	(void)env;
 	if (argv[1] == NULL)
 		status = g_last_status_code;
-	else if (argv[2] != NULL)
-	{
-		// replace with minishell error system
-		ft_putendl_fd("minishell: exit: too many arguments", STDERR_FILENO);
-		return 1;
-	}
 	else
 	{
 		errno = 0;
-		status = ft_atoi_strict(argv[1]);
-		if (errno != 0)
+		status = ft_strtol(argv[1], &after, 10);
+		while (ft_isblank(*after))
+			after++;
+		if (*after != '\0' || errno == ERANGE)
 		{
 			// replace with minishell error system
-			ft_putendl_fd("minishell: exit: ---argv[1]---: numeric argument required", STDERR_FILENO);
+			ft_putstr_fd("minishell: exit: ", STDERR_FILENO);
+			ft_putstr_fd(argv[1], STDERR_FILENO);
+			ft_putstr_fd(": numeric argument required\n", STDERR_FILENO);
 			return 2;
 		}
+		if (argv[2] != NULL)
+		{
+			// replace with minishell error system
+			ft_putendl_fd("minishell: exit: too many arguments", STDERR_FILENO);
+			return 1;
+		}
 	}
 	exit(status % 256);
 	return (0);
diff --git a/src/eval/cmd.c b/src/eval/cmd.c
index deb7df7..1953325 100644
--- a/src/eval/cmd.c
+++ b/src/eval/cmd.c
@@ -6,7 +6,7 @@
 /*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/06/14 10:41:31 by charles           #+#    #+#             */
-/*   Updated: 2020/07/16 09:12:02 by charles          ###   ########.fr       */
+/*   Updated: 2020/07/17 11:43:59 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -88,7 +88,7 @@ int			eval_cmd(int fds[2], t_env env, t_path path, t_ast *ast)
 			return (-1);
 		ft_lstpop_front(&ast->cmd_argv, (void (*)(void*))token_destroy);
 	}
-	if (ast->cmd_argv == NULL)
+	if (ast->cmd_argv == NULL) // FIXME special env not passed to child processes
 	{
 		ft_vecpop(param.env_local, NULL);
 		if (ft_vecswallow_at(env, env->size - 1, param.env_local) == NULL)
@@ -123,7 +123,7 @@ int			eval_cmd(int fds[2], t_env env, t_path path, t_ast *ast)
 			return (-1); // return error status
 		}
 	}
-	else// solved with pipeline
+	else if (!param.builtin->forked)
 	{
 		g_last_status_code = param.builtin->func(argv, env);
 		return (g_last_status_code);
diff --git a/src/lexer/lexer.c b/src/lexer/lexer.c
index 32b9eeb..a6a2755 100644
--- a/src/lexer/lexer.c
+++ b/src/lexer/lexer.c
@@ -6,7 +6,7 @@
 /*   By: nahaddac <nahaddac@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/07/16 08:18:25 by nahaddac          #+#    #+#             */
-/*   Updated: 2020/07/17 13:06:17 by nahaddac         ###   ########.fr       */
+/*   Updated: 2020/07/17 13:08:08 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -24,7 +24,7 @@ int 			len_is_not_sep(char *input)
 			i +=2;
 			if (input[i] == '\\')
 				i += len_is_not_sep(&input[i]);
-	
+
 		}
 		if (lexer_sep(input[i]))
 			return(i);
diff --git a/src/main.c b/src/main.c
index fc55e3e..9687de4 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,7 +6,7 @@
 /*   By: cacharle <cacharle@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/02/28 11:45:44 by cacharle          #+#    #+#             */
-/*   Updated: 2020/07/16 09:19:58 by charles          ###   ########.fr       */
+/*   Updated: 2020/07/17 13:39:05 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -29,12 +29,15 @@ void ast_print(int level, t_ast *ast);
 /*
 ** TODO
 ** $?
-** syntax error
-** signal
 ** pipeline
-** cmd variable
-** interpolation order
+** cmd variable preprocess
 ** PATH with no permission, link and other file system fun stuff
+** escape lexer
+** escape split preprocessing
+** signal on whole line instead of single command
+** parsing error
+** env local to current minishell process
+** exit
 */
 
 char	*g_basename = "minishell";
@@ -47,6 +50,7 @@ int main(int argc, char **argv, char **envp)
 	env = env_from_array(envp);
 	path = path_update(NULL, env_search(env, "PATH"));
 
+	g_last_status_code = 0;
 	signal(SIGINT, signal_sigint);
 	signal(SIGQUIT, signal_sigquit);
 	signal(SIGTERM, signal_sigterm);
diff --git a/src/path.c b/src/path.c
index 579fd81..1234998 100644
--- a/src/path.c
+++ b/src/path.c
@@ -6,7 +6,7 @@
 /*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/02/27 15:51:01 by cacharle          #+#    #+#             */
-/*   Updated: 2020/07/15 12:11:48 by charles          ###   ########.fr       */
+/*   Updated: 2020/07/17 10:48:31 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -52,6 +52,8 @@ static int			st_add_file(char *dirname, struct dirent *entry, void *path)
 ** \return          The updated/created path hash table or NULL on error
 */
 
+// TODO check nullstring path == current directory
+// i.e ./ not needed before executable
 t_path					path_update(t_path path, char *path_var)
 {
 	int		i;
diff --git a/src/preprocess.c b/src/preprocess.c
index 13f297c..44558d4 100644
--- a/src/preprocess.c
+++ b/src/preprocess.c
@@ -6,7 +6,7 @@
 /*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/04/03 08:58:49 by charles           #+#    #+#             */
-/*   Updated: 2020/07/13 11:08:18 by charles          ###   ########.fr       */
+/*   Updated: 2020/07/17 11:20:26 by charles          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -36,6 +36,8 @@ static char		*st_iterpolate_env(char *str, enum e_token_tag tag, t_env env)
 	while (++i < dstr->length)
 		if (dstr->str[i] == '\\' && st_escapable(dstr->str[i + 1], tag))
 			ft_dstrerase(dstr, i, 1);
+		else if (dstr->str[i] == '$' && !ft_isalnum(dstr->str[i + 1]) && dstr->str[i + 1] != '_') // $ alone
+			continue;
 		else if (dstr->str[i] == '$')
 		{
 			if ((match = env_search_first_match(env, dstr->str + i + 1)) == NULL)