diff options
Diffstat (limited to 'src/ft_e_builtins.c')
| -rw-r--r-- | src/ft_e_builtins.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/ft_e_builtins.c b/src/ft_e_builtins.c new file mode 100644 index 0000000..34a8534 --- /dev/null +++ b/src/ft_e_builtins.c @@ -0,0 +1,109 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_e_builtins.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/02/14 17:19:27 by rbousset #+# #+# */ +/* Updated: 2020/02/14 17:19:29 by rbousset ### ########lyon.fr */ +/* */ +/* ************************************************************************** */ + +#include <libft.h> +#include <stdlib.h> +#include <stdint.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/wait.h> +#include <errno.h> +#include "ft_f_file.h" +#include "ft_s_destroy.h" +#include "ft_s_lcom.h" +#include "ft_s_struct.h" + +static void + ft_dup_redirs(const t_lcom *ptr, + t_msh *msh) +{ + int32_t fd; + + if (ptr->redir == -1) + { + if ((fd = open(ptr->rdrpath, O_RDONLY)) == -1) + ft_f_file(ptr->rdrpath, msh); + /* TODO: handle < redir */ + } + if (ptr->redir == 1) + { + if ((fd = open(ptr->rdrpath, + O_CREAT | O_TRUNC | O_WRONLY, 0644)) == -1) + ft_f_file(ptr->rdrpath, msh); + dup2(fd, STDOUT_FILENO); + close(fd); + } + if (ptr->redir == 2) + { + if ((fd = open(ptr->rdrpath, + O_CREAT | O_APPEND | O_WRONLY, 0644)) == -1) + ft_f_file(ptr->rdrpath, msh); + dup2(fd, STDOUT_FILENO); + close(fd); + } +} + +static void + ft_e_builtin_child(const t_lcom *ptr, + uint8_t bu_id, + t_msh *msh) +{ + int32_t ret; + + ft_dup_redirs(ptr, msh); + ret = msh->bu_ptr[bu_id](ptr->args, msh); + ft_lcom_clear(&msh->curr); + ft_s_destroy(msh); + exit(ret); +} + +static void + ft_e_builtin_parent(pid_t pid, + t_msh *msh) +{ + int32_t status; + + while (wait(&status) != pid) + { + /* TODO: fix this unnormed syntax */ + } + msh->ret = WEXITSTATUS(status); +} + +void + ft_e_builtin(const t_lcom *ptr, + uint8_t bu_id, + t_msh *msh) +{ + pid_t pid; + + /* TODO: handle exit | bu_id = 6 */ + if (bu_id != 6) + { + if ((pid = fork()) == 0) + { + ft_e_builtin_child(ptr, bu_id, msh); + } + else if (pid < 0) + { + /* TODO: handle fork failed */ + } + else + { + ft_e_builtin_parent(pid, msh); + } + } + else + { + msh->ret = msh->bu_ptr[bu_id](ptr->args, msh); + } +} |