signals.h File Reference

#include <termios.h>
#include <sys/ioctl.h>
#include <signal.h>
#include "shell.h"

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Macros
#define	_GNU_SOURCE

Functions
void	signal_reset_prompt (int signo)
void	set_signals_interactive (void)
void	signal_print_newline (int signal)
void	sigquit_ignore (void)
void	set_signals_noninteractive (void)
void	handle_sigint_heredoc (int signo)
int	ft_perror (char *str)

Variables
volatile sig_atomic_t	g_heredoc_interrupted

Macro Definition Documentation

_GNU_SOURCE

#define _GNU_SOURCE

Definition at line 15 of file signals.h.

Function Documentation

ft_perror()

int ft_perror

(

char *

str

)

Definition at line 18 of file exit_status_utils.c.

{
    perror (str);
    exit(EXIT_FAILURE);
}

handle_sigint_heredoc()

void handle_sigint_heredoc

(

int

signo

)

Definition at line 19 of file signals_utils.c.

{
    (void)signo;
    g_heredoc_interrupted = 1;
    write(1, "\n", 1);
    rl_replace_line("", 0);
    rl_redisplay();
}

References g_heredoc_interrupted.

Referenced by setup_sigint_handler().

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set_signals_interactive()

void set_signals_interactive

(

void

)

Definition at line 51 of file signals.c.

{
    struct sigaction    a;
 
    sigquit_ignore();
    sigemptyset(&a.sa_mask);
    a.sa_flags = 0;
    a.sa_handler = *signal_reset_prompt;
    a.sa_flags |= SA_RESTART;
    sigaction(SIGINT, &a, NULL);
}

References signal_reset_prompt(), and sigquit_ignore().

Referenced by main_loop().

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set_signals_noninteractive()

void set_signals_noninteractive

(

void

)

Definition at line 63 of file signals.c.

{
    struct sigaction    a;
 
    sigemptyset(&a.sa_mask);
    a.sa_flags = 0;
    a.sa_handler = &signal_print_newline;
    sigaction(SIGINT, &a, NULL);
    a.sa_handler = SIG_IGN;
    sigaction(SIGQUIT, &a, NULL);
}

References signal_print_newline().

Referenced by main_loop().

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signal_print_newline()

void signal_print_newline

(

int

signal

)

Definition at line 34 of file signals.c.

{
    (void)signal;
    write(STDOUT_FILENO, "\n", 1);
    rl_on_new_line();
}

Referenced by set_signals_noninteractive().

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signal_reset_prompt()

void signal_reset_prompt

(

int

signo

)

Definition at line 25 of file signals.c.

{
    (void)signo;
    write(1, "\n", 1);
    rl_on_new_line();
    rl_replace_line("", 0);
    rl_redisplay();
}

Referenced by set_signals_interactive().

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sigquit_ignore()

void sigquit_ignore

(

void

)

Definition at line 41 of file signals.c.

{
    struct sigaction    a;
 
    sigemptyset(&a.sa_mask);
    a.sa_flags = 0;
    a.sa_handler = SIG_IGN;
    sigaction(SIGQUIT, &a, NULL);
}

Referenced by set_signals_interactive().

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Variable Documentation

g_heredoc_interrupted

volatile sig_atomic_t g_heredoc_interrupted

extern

Definition at line 27 of file redirect_heredoc.c.

Referenced by handle_heredoc_interruption(), handle_sigint_heredoc(), redirect_here_doc(), and write_heredoc_lines().