96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* shell_init.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: jhalford <jhalford@student.42.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2016/12/12 17:23:59 by jhalford #+# #+# */
|
|
/* Updated: 2017/03/18 00:04:33 by wescande ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "minishell.h"
|
|
|
|
static t_cliopts g_opts[] =
|
|
{
|
|
{'c', NULL, SH_OPTS_LC, SH_OPTS_JOBC | SH_INTERACTIVE, NULL},
|
|
{-1, "no-jobcontrol", 0, SH_OPTS_JOBC, NULL},
|
|
{0, 0, 0, 0, 0},
|
|
};
|
|
|
|
int get_input_fd(char **av)
|
|
{
|
|
t_data *data;
|
|
char *file;
|
|
int fds[2];
|
|
int fd;
|
|
struct stat buf;
|
|
|
|
data = data_singleton();
|
|
file = *data->av_data;
|
|
if (SH_IS_INTERACTIVE(data->opts))
|
|
return (STDIN);
|
|
else if (data->opts & SH_OPTS_LC)
|
|
{
|
|
pipe(fds);
|
|
write(fds[PIPE_WRITE], file, ft_strlen(file));
|
|
close(fds[PIPE_WRITE]);
|
|
dup2_close(fds[PIPE_READ], (fd = 10));
|
|
fcntl(fd, F_SETFD, FD_CLOEXEC);
|
|
return (fd);
|
|
}
|
|
else if (file && !stat(file, &buf))
|
|
{
|
|
fd = -1;
|
|
if (S_ISDIR(buf.st_mode))
|
|
ft_printf("{red}%s: %s: is a directory\n{eoc}", av[0], file);
|
|
else if ((fd = open(file, O_RDONLY | O_CLOEXEC)) < 0)
|
|
ft_printf("{red}%s: %s: No such file or directory\n{eoc}", av[0], file);
|
|
if (fd > 0 && !dup2_close(fd, 10) && (fd = 10))
|
|
return (fd);
|
|
}
|
|
return (STDIN);
|
|
}
|
|
|
|
static int interactive_settings(void)
|
|
{
|
|
int *shell_pgid;
|
|
t_data *data;
|
|
|
|
data = data_singleton();
|
|
shell_pgid = &data->jobc.shell_pgid;
|
|
while (tcgetpgrp(STDIN) != (*shell_pgid = getpgrp()))
|
|
kill(-*shell_pgid, SIGTTIN);
|
|
signal(SIGINT, SIG_IGN);
|
|
signal(SIGQUIT, SIG_IGN);
|
|
signal(SIGTSTP, SIG_IGN);
|
|
signal(SIGTTIN, SIG_IGN);
|
|
signal(SIGTTOU, SIG_IGN);
|
|
signal(SIGCHLD, SIG_DFL);//sigchld_handler); TBC IF dynamic notification are wanted
|
|
*shell_pgid = getpid();
|
|
if (setpgid(*shell_pgid, *shell_pgid))
|
|
{
|
|
ft_dprintf(2, "Couldnt put the shell in it's own process group");
|
|
exit(1);
|
|
}
|
|
tcsetpgrp(STDIN, *shell_pgid);
|
|
tcgetattr(STDIN, &data->jobc.shell_tmodes);
|
|
return (0);
|
|
}
|
|
|
|
int shell_init(int ac, char **av)
|
|
{
|
|
t_data *data;
|
|
|
|
data = data_singleton();
|
|
data_init(ac, av);
|
|
if (cliopts_get(av, g_opts, data))
|
|
return (ft_perror());
|
|
if (!isatty(STDIN) || *data->av_data)
|
|
data->opts &= ~(SH_INTERACTIVE | SH_OPTS_JOBC);
|
|
data->fd = get_input_fd(av);
|
|
if (SH_IS_INTERACTIVE(data->opts))
|
|
interactive_settings();
|
|
return (0);
|
|
}
|