99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* shell_init.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jhalford@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2016/12/12 17:23:59 by jhalford #+# #+# */
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/* Updated: 2017/03/16 23:25:29 by ariard ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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static t_cliopts g_opts[] =
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{
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{'c', NULL, SH_OPTS_LC, SH_OPTS_JOBC | SH_INTERACTIVE, NULL},
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{-1, "no-jobcontrol", 0, SH_OPTS_JOBC, NULL},
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{0, 0, 0, 0, 0},
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};
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int get_input_fd(char **av)
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{
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t_data *data;
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char *file;
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int fds[2];
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int fd;
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struct stat buf;
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data = data_singleton();
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if (SH_IS_INTERACTIVE(data->opts))
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return (STDIN);
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else if (data->opts & SH_OPTS_LC)
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{
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pipe(fds);
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dup2_close(fds[PIPE_READ], 10);
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fd = 10;
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file = *cliopts_getdata(av);
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write(fds[PIPE_WRITE], file, ft_strlen(file));
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close(fds[PIPE_WRITE]);
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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return (fd);
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}
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else if ((file = *cliopts_getdata(av)) && !stat(file, &buf))
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{
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fd = -1;
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if (S_ISDIR(buf.st_mode))
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ft_printf("{red}%s: %s: is a directory\n{eoc}", av[0], file);
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else if ((fd = open(file, O_RDONLY | O_CLOEXEC)) < 0)
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ft_printf("{red}%s: %s: No such file or directory\n{eoc}", av[0], file);
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if (fd > 0 && !dup2_close(fd, 10) && (fd = 10))
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return (fd);
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}
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return (STDIN);
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}
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static int interactive_settings(void)
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{
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int *shell_pgid;
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t_data *data;
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data = data_singleton();
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shell_pgid = &data->jobc.shell_pgid;
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while (tcgetpgrp(STDIN) != (*shell_pgid = getpgrp()))
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kill(-*shell_pgid, SIGTTIN);
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signal(SIGINT, sigint_handler);
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signal(SIGQUIT, SIG_IGN);
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signal(SIGTSTP, sigtstp_handler);
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signal(SIGTTIN, SIG_IGN);
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signal(SIGTTOU, SIG_IGN);
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signal(SIGCHLD, SIG_DFL);
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*shell_pgid = getpid();
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if (setpgid(*shell_pgid, *shell_pgid))
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{
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ft_dprintf(2, "Couldnt put the shell in it's own process group");
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exit(1);
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}
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tcsetpgrp(STDIN, *shell_pgid);
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tcgetattr(STDIN, &data->jobc.shell_tmodes);
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return (0);
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}
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int shell_init(int ac, char **av)
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{
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t_data *data;
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data = data_singleton();
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data_init(ac, av);
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if (isatty(STDIN) && !*cliopts_getdata(av))
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{
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data->opts |= SH_INTERACTIVE;
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data->opts |= SH_OPTS_JOBC;
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}
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if (cliopts_get(av, g_opts, data))
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return (ft_perror());
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if (SH_IS_INTERACTIVE(data->opts))
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interactive_settings();
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return (0);
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}
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