42/42_INT_07_minishell
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tests ok pour modifier fonctionnement de minishell

Browse Source
This commit is contained in:
hugogogo
2021-11-05 16:26:27 +01:00
parent 5a98927eff
commit 0a33916c75
4 changed files with 95 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
README.md
View File

@@ -1,9 +1,30 @@
## understanding some things :
- [how to send EOF to stdin of a shell process](https://unix.stackexchange.com/questions/493578/how-to-send-d-eot-character-to-stdin-of-a-shell-process)
- [get root access 1](https://vitux.com/how-to-become-root-user-in-ubuntu-command-line-using-su-and-sudo/)
- [get root access using sudo su](https://superuser.com/questions/408990/how-do-i-log-out-of-sudo-su)
- [get root access 1](https://vitux.com/how-to-become-root-user-in-ubuntu-command-line-using-su-and-sudo/)
- [get root access using sudo su](https://superuser.com/questions/408990/how-do-i-log-out-of-sudo-su)
- [what is a tty](https://www.howtogeek.com/428174/what-is-a-tty-on-linux-and-how-to-use-the-tty-command/)
```
| BASH | MINISHELL |
-----------------------------------
| print | action | print | action |
---------------|-----------------|----------------|----------------|
| SIGINT / ctrl-C | ^C | \n | ^C | exit |
prompt> |-----------------|----------------|----------------|
| EOF / ctrl-D | exit | exit | Ø | \n |
---------------|-----------------|----------------|----------------|
| SIGINT / ctrl-C | bla^C | \n | bla^C | exit |
prompt> blabla |-----------------|----------------|----------------|
| EOF / ctrl-D | Ø | Ø | Ø | Ø |
---------------|-----------------|----------------|----------------|
-> change signal handler for SIGINT, to print a \n instead of exit
-> change when readline receive an EOF and line is empty, to print exit and exit
-> when readline receive an EOF and line is empty, it return NULL
-> if line isn't empty it does nothing
```
## sommaire :
---
- [1. todo list :](#markdown-header-1-todo-list)

92
test_rl.c
View File

@@ -1,92 +0,0 @@
# include <stdio.h>
# include <stdlib.h>
# include <unistd.h>
# include <readline/readline.h>
# include <signal.h>
//# include <readline/history.h>
//# include <fcntl.h>
//# include <sys/ioctl.h>
//# include <string.h>
//# include <errno.h>
//# include <sys/wait.h>
//# include <sys/stat.h>
//# include <sys/types.h>
//# include <sys/time.h>
//# include <sys/resource.h>
//# include <dirent.h>
//# include <termios.h>
//# include <curses.h>
//# include <term.h>
void handler_sigint(int id)
{
(void)id;
write(1, "\n", 1);
}
int main(int argc, char *argv[], char *envp[])
{
(void)argc;
(void)argv;
char *line_input;
char *prompt;
// t_cmd **cmd_arr;
// char **envp;
// char *prompt_base;
// char *prompt;
// t_token *token_list;
// int last_exit_status;
// struct termios ori_termios;
// struct termios interactive_termios;
// int termios_changed;
// struct sigaction ori_signal_behaviour;
// struct sigaction signal_behaviour;
signal(SIGINT, handler_sigint);
line_input = NULL;
prompt = strdup("\e[0;31mtest>\e[0m ");
while (1)
{
if (line_input)
free(line_input);
line_input = readline(prompt);
if (line_input && *line_input)
{
// A faire aprés être sortie du mode interactif
// - Ignorer tout les signaux
// - Remettre ori_termios
// c->signal_behaviour.sa_handler = SIG_IGN;
// sigaction(SIGINT, &c->signal_behaviour, NULL);
// sigaction(SIGQUIT, &c->signal_behaviour, NULL);
// tcsetattr(STDIN_FILENO, TCSANOW, &c->ori_termios);
// if (!fork())
// {
// char *arg_test[3];
//
// arg_test[0] = ft_strdup("sleep");
// arg_test[1] = ft_strdup("3");
// arg_test[2] = NULL;
// sigaction(SIGQUIT, &c->ori_signal_behaviour, NULL);
// sigaction(SIGINT, &c->ori_signal_behaviour, NULL);
// execve("/bin/sleep", arg_test, c->envp);
// }
// else
// {
// int wait_test;
// wait(&wait_test);
// c->signal_behaviour.sa_handler = sigint_handler;
// sigaction(SIGINT, &c->signal_behaviour, NULL);
// c->signal_behaviour.sa_handler = SIG_IGN;
// sigaction(SIGQUIT, &c->signal_behaviour, NULL);
// tcsetattr(STDIN_FILENO, TCSANOW, &c->interactive_termios);
// }
printf("%s\n", line_input);
}
else if (!line_input)
write(1, "\n", 1);
}
return (0);
}

29
test_rl_base.c Normal file
View File

@@ -0,0 +1,29 @@
# include <stdlib.h>
# include <unistd.h>
# include <readline/readline.h>
int main(int argc, char *argv[], char *envp[])
{
(void)argc;
(void)argv;
char *line_input;
char *prompt;
line_input = NULL;
prompt = strdup("\e[0;31mtest>\e[0m ");
while (1)
{
if (line_input)
free(line_input);
line_input = readline(prompt);
if (line_input && *line_input)
{
write(1, line_input, strlen(line_input));
write(1, "\n", 1);
}
else if (!line_input)
write(1, "\n", 1);
}
return (0);
}

43
test_rl_modif.c Normal file
View File

@@ -0,0 +1,43 @@
# include <stdlib.h>
# include <unistd.h>
# include <readline/readline.h>
# include <signal.h>
void handler_sigint(int id)
{
(void)id;
write(1, "\n", 1);
rl_replace_line("", 1);
rl_on_new_line();
rl_redisplay();
}
int main(int argc, char *argv[], char *envp[])
{
(void)argc;
(void)argv;
char *line_input;
char *prompt;
signal(SIGINT, handler_sigint);
line_input = NULL;
prompt = strdup("\e[0;31mtest>\e[0m ");
while (1)
{
if (line_input)
free(line_input);
line_input = readline(prompt);
if (line_input && *line_input)
{
write(1, line_input, strlen(line_input));
write(1, "\n", 1);
}
else if (!line_input)
{
write(1, "exit\n", 5);
exit(0);
}
}
return (0);
}