diff options
Diffstat (limited to 'src/interpreter.c')
| -rw-r--r-- | src/interpreter.c | 137 |
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)); } |
