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-rw-r--r--src/interpreter.c137
1 files changed, 18 insertions, 119 deletions
diff --git a/src/interpreter.c b/src/interpreter.c
index 7b0306f..11f0620 100644
--- a/src/interpreter.c
+++ b/src/interpreter.c
@@ -6,154 +6,53 @@
/* By: chuhlig <chuhlig@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/12/17 19:15:49 by chuhlig #+# #+# */
-/* Updated: 2025/01/13 09:53:33 by chuhlig ### ########.fr */
+/* Updated: 2025/01/21 16:35:38 by chuhlig ### ########.fr */
/* */
/* ************************************************************************** */
#include "debug_tools.h"
#include "minishell.h"
-#include <stdlib.h>
-#include <sys/_types/_pid_t.h>
-#include <sys/cdefs.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <sys/fcntl.h>
-#include <sys/types.h>
-int is_builtin(char *cmd)
-{
- return ((ft_strcmp(cmd, "export") == 0)
- || (ft_strcmp(cmd, "unset") == 0)
- || (ft_strcmp(cmd, "cd") == 0)
- || (ft_strcmp(cmd, "exit") == 0)
- || (ft_strcmp(cmd, "echo") == 0)
- || (ft_strcmp(cmd, "pwd") == 0)
- || (ft_strcmp(cmd, "env") == 0));
-}
-
-int execute_builtin(char **args, t_env **env)
-{
- if (ft_strcmp(args[0], "export") == 0)
- return (export(args, env));
- else if (ft_strcmp(args[0], "unset") == 0)
- return (unset(args, env));
- else if (ft_strcmp(args[0], "cd") == 0)
- return (cd(env, args));
- else if (ft_strcmp(args[0], "exit") == 0)
- return (EXIT_SUCCESS);
- else if (ft_strcmp(args[0], "echo") == 0)
- return (echo(args));
- else if (ft_strcmp(args[0], "pwd") == 0)
- return (pwd(*env));
- else if (ft_strcmp(args[0], "env") == 0)
- return (ft_env(*env));
- return (1);
-}
+int eval_rec(t_node *node, t_env **env, int in_fd);
-static int handle_redirections(t_redirection *redirs)
+int open_file(char *path, int flags, int mode)
{
int fd;
- if (redirs[0].type == INPUT_FILE)
- {
- fd = open(redirs[0].specifier, O_RDONLY);
- if (fd < 0)
- {
- perror("open");
- return (-1);
- }
- dup2(fd, STDIN_FILENO);
- close(fd);
- }
- else if (redirs[0].type == INPUT_LIMITER)
- {
- fd = open("/tmp/heredoc_tmp", O_WRONLY | O_CREAT | O_TRUNC, 0644);
- if (fd < 0)
- {
- perror("open");
- return (-1);
- }
- write(fd, redirs[0].specifier, ft_strlen(redirs[0].specifier));
- close(fd);
- fd = open("/tmp/heredoc_tmp", O_RDONLY);
- if (fd < 0)
- {
- perror("open");
- return (-1);
- }
- dup2(fd, STDIN_FILENO);
- close(fd);
- }
- if (redirs[1].type == OUTPUT_OVERRIDE)
- {
- fd = open(redirs[1].specifier, O_WRONLY | O_CREAT | O_TRUNC, 0644);
- if (fd < 0)
- {
- perror("open");
- return (-1);
- }
- dup2(fd, STDOUT_FILENO);
- close(fd);
- }
- else if (redirs[1].type == OUTPUT_APPEND)
- {
- fd = open(redirs[1].specifier, O_WRONLY | O_CREAT | O_APPEND, 0644);
- if (fd < 0)
- {
- perror("open");
- return (-1);
- }
- dup2(fd, STDOUT_FILENO);
- close(fd);
- }
- return (0);
- }
+ fd = open(path, flags, mode);
+ if (fd < 0)
+ perror(path);
+ return (fd);
+}
-static int eval_rec(t_node *node, t_env **env, int in_fd)
+int eval_rec(t_node *node, t_env **env, int in_fd)
{
- pid_t pid;
int p[2];
+ pid_t pid;
int result;
- int status;
- int original_stdin;
if (node->type == PIPE_NODE)
{
- pipe(p);
+ if (pipe(p) == -1)
+ return (perror("pipe"), EXIT_FAILURE);
pid = fork();
+ if (pid == -1)
+ return (perror("fork"), close(p[0]), close(p[1]), EXIT_FAILURE);
if (pid == 0)
- {
- close(p[0]);
- dup2(in_fd, STDIN_FILENO);
- dup2(p[1], STDOUT_FILENO);
- result = eval_rec(node->content.pipe.left, env, in_fd);
- exit(result);
- }
- else
- {
- close(p[1]);
- original_stdin = dup(STDIN_FILENO);
- dup2(p[0], STDIN_FILENO);
- result = eval_rec(node->content.pipe.right, env, p[0]);
- waitpid(pid, &status, 0);
- dup2(original_stdin, STDIN_FILENO);
- close(original_stdin);
- }
+ handle_pipe_child(p, node, env, in_fd);
+ result = handle_pipe_parent(p, node, env);
}
else if (node->type == CMD_NODE)
- {
result = execute_cmd(&node->content.cmd, env);
- }
else
{
- printf("Handling unknown node type\n");
- panic("UNREACHABLE");
result = EXIT_FAILURE;
+ free_node(node);
}
return (result);
}
-int eval(t_node *node, t_env **env)
+int eval(t_node *node, t_env **env)
{
return (eval_rec(node, env, STDIN_FILENO));
}