Files
42_INT_07_minishell/srcs/shell_loop.c
2021-11-02 13:38:52 +01:00

99 lines
2.7 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* shell_loop.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/10/04 05:59:26 by lperrey #+# #+# */
/* Updated: 2021/11/02 13:37:12 by hulamy ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
void close_fd(t_cmd *cmd);
void execute_cmd(char **envp, t_cmd **cmd_arr);
void shell_loop(t_all *c)
{
char *line_input;
line_input = NULL;
while (1)
{
if (line_input)
free(line_input);
line_input = readline(c->prompt);
if (line_input && *line_input)
{
add_history(line_input);
c->token_list = input_to_tokens(line_input);
c->cmd_arr = parsing(c->token_list, c->envp);
execute_cmd(c->envp, c->cmd_arr);
ft_lstclear((t_list **)&c->token_list, free);
}
}
}
void wip_test()
{
char term_desc[2048];
char *term_type;
int term_width;
int term_height;
int ret;
term_type = getenv("TERM");
if (term_type == 0)
ft_putstr_fd("Specify a terminal type with `setenv TERM <yourtype>'.\n", 2);
ret = tgetent(term_desc, term_type);
if (ret < 0)
ft_putstr_fd("Could not access the termcap data base.\n", 2);
if (ret == 0)
ft_putstr_fd("Terminal type `%s' is not defined.\n", 2);
term_height = tgetnum ("li");
term_width = tgetnum ("co");
/* Extract information that termcap functions use. */
/* temp = tgetstr ("pc", BUFFADDR);
PC = temp ? *temp : 0;
BC = tgetstr ("le", BUFFADDR);
UP = tgetstr ("up", BUFFADDR); */
}
void close_fd(t_cmd *cmd)
{
if (cmd->fd_in != 0)
close(cmd->fd_in);
if (cmd->fd_out != 1)
close(cmd->fd_out);
}
void execute_cmd(char **envp, t_cmd **cmd_arr)
{
pid_t pid;
pid_t wpid;
int status;
int i;
i = 0;
while(cmd_arr[i])
{
pid = fork();
if (pid == 0)
{
if (cmd_arr[i]->fd_in != 0)
dup2(cmd_arr[i]->fd_in, STDIN_FILENO);
if (cmd_arr[i]->fd_out != 1)
dup2(cmd_arr[i]->fd_out, STDOUT_FILENO);
close_fd(cmd_arr[i]);
execve(cmd_arr[i]->argv[0], cmd_arr[i]->argv, envp);
}
else
close_fd(cmd_arr[i]);
i++;
}
// waitpid pour la derniere commande (pour '$?')
while ((wpid = wait(&status)) > 0);
}