heredoc_signals.c File Reference

Heredoc signal handling: SIGINT handler for heredoc input. More...

#include <fcntl.h>
#include "signals.h"
#include "libft.h"

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Detailed Description

Heredoc signal handling: SIGINT handler for heredoc input.

Definition in file heredoc_signals.c.

Functions
void	heredoc_sigint_handler (int sig)
	SIGINT handler for heredoc. More...
void	setup_heredoc_signals (void)
	Configure signals for heredoc. More...
void	restore_stdin (void)
	Restore STDIN after heredoc SIGINT closed it. More...

Function Documentation

heredoc_sigint_handler()

void heredoc_sigint_handler

(

int

sig

)

SIGINT handler for heredoc.

Closes STDIN to force readline/gnl to return NULL, thus breaking the heredoc read loop

Parameters

sig	Signal number (SIGINT)

Note

STDIN is later restored via restore_stdin()

Definition at line 26 of file heredoc_signals.c.

References g_signal.

Referenced by setup_heredoc_signals().

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setup_heredoc_signals()

void setup_heredoc_signals

(

void

)

Configure signals for heredoc.

• SIGINT calls heredoc_sigint_handler() without SA_RESTART so readline returns immediately
• SIGQUIT ignored

Definition at line 40 of file heredoc_signals.c.

References heredoc_sigint_handler().

Referenced by handle_heredoc().

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restore_stdin()

void restore_stdin

(

void

)

Restore STDIN after heredoc SIGINT closed it.

Reopens /dev/tty and uses dup2 to reassign it to fd 0 (STDIN)

Definition at line 62 of file heredoc_signals.c.

Referenced by handle_heredoc().

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