diff options
Diffstat (limited to 'src/interpreter.c')
| -rw-r--r-- | src/interpreter.c | 85 |
1 files changed, 68 insertions, 17 deletions
diff --git a/src/interpreter.c b/src/interpreter.c index 2a09e6d..c6a4a00 100644 --- a/src/interpreter.c +++ b/src/interpreter.c @@ -3,37 +3,88 @@ /* ::: :::::::: */ /* interpreter.c :+: :+: :+: */ /* +:+ +:+ +:+ */ -/* By: dkaiser <dkaiser@student.42heilbronn.de +#+ +:+ +#+ */ +/* By: chuhlig <chuhlig@student.42.fr> +#+ +:+ +#+ */ /* +#+#+#+#+#+ +#+ */ /* Created: 2024/08/05 13:15:24 by dkaiser #+# #+# */ -/* Updated: 2024/08/05 13:33:16 by dkaiser ### ########.fr */ +/* Updated: 2024/10/25 20:59:16 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> -static int eval_pipe(t_pipe *pipe); -static int eval_cmd(t_cmd *cmd); +static int eval_rec(t_node *node, t_env *env, int in_fd); -int eval(t_node *node) +int eval(t_node *node, t_env *env) { - if (node->type == PIPE_NODE) - return (eval_pipe(&node->content.pipe)); - else if (node->type == CMD_NODE) - return (eval_cmd(&node->content.cmd)); + pid_t pid; + int result; + + if (node == NULL) + return (EXIT_FAILURE); + result = 0; + pid = fork(); + if (pid < 0) + { + return (EXIT_FAILURE); + } + if (pid == 0) + { + result = eval_rec(node, env, STDIN_FILENO); + exit(result); + } else { - panic(UNREACHABLE); - return (-1); + waitpid(pid, &result, 0); } + return (result); } -static int eval_pipe(t_pipe *pipe) +static int eval_rec(t_node *node, t_env *env, int in_fd) { - return (0); -} + pid_t pid; + int result; + int p[2]; -static int eval_cmd(t_cmd *cmd) -{ - return (0); + result = pipe(p); + if (result == -1) + return (EXIT_FAILURE); + if (node->type == PIPE_NODE) + { + pid = fork(); + if (pid < 0) + { + return (EXIT_FAILURE); + } + if (pid == 0) + { + close(p[0]); + dup2(in_fd, STDIN_FILENO); + dup2(p[1], STDOUT_FILENO); + result = execute_cmd(&node->content.pipe.left->content.cmd, env); + exit(result); + } + else + { + close(p[1]); + dup2(p[0], STDIN_FILENO); + result = eval_rec(node->content.pipe.right, env, p[0]); + } + } + else if (node->type == CMD_NODE) + { + result = execute_cmd(&node->content.cmd, env); + } + else + { + panic(UNREACHABLE); + return (EXIT_FAILURE); + } + return (result); } + |