mirror of
https://codeberg.org/la-chouette/minishell.git
synced 2025-12-06 07:28:09 +01:00
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* sig.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jguelen <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/02/20 10:26:05 by jguelen #+# #+# */
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/* Updated: 2025/02/20 18:03:06 by jguelen ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "sig.h"
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// TODO Check the return values and implement handlers
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int set_interactive_mode_sig_handling(void)
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{
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struct sigaction sig_act;
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ft_bzero(&sig_act);
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sig_act.sa_handler = &sig_int_new_prompt;
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if (sigemptyset(sig_act.sa_mask) == -1)
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return (-1);
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if (sigaction(SIGINT, &sig_act, NULL) == -1)
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return (-1);
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sig_act.sa_handler = SIG_IGN;
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if (sigaction(SIGQUIT, &sig_act, NULL) == -1)
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return (-1);
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return (0);
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}
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/*
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** in case a SIGINT is sent by kill
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** deals with a SIGQUIT the same way as above
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*/
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int set_exec_mode_sig_handling(void)
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{
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struct sigaction sig_act;
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struct sigaction sig_hand;
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ft_bzero(&sig_act);
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if (sigemptyset(sig_act.sa_mask) == -1)
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return (-1);
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sig_act.sa_sigaction = &ignoreif_sent_by_kill; //ignore if code == SI_USER
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sig_act.sa_flags |= SA_SIGINFO;
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if (sigaction(SIGINT, &sig_act, NULL) == -1)
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return (-1);
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ft_bzero(&sig_hand);
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if (sigemptyset(sig_hand.sa_mask) == -1)
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return (-1);
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sig_hand.sa_handler = SIG_DFL;
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if (sigaction(SIGQUIT, &sig_hand, NULL) == -1)
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return (-1);
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return (0);
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}
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/*
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** Can be used at the start of a child process.
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** Check if necessary since execve is executed.
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** @RETURN Return 0 i case of success, -1 in case of error and errno is set
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** to indicate the error.
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*/
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int set_default_sig_handling(void)
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{
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struct sigaction sig;
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int i;
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ft_bzero(&sig);
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sig.sa_handler = SIG_DFL;
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if (sigemptyset(sig.sa_mask) == -1)
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return (-1);
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i = 0;
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while (i < 128)
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{
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if (sigaction(i, &sig, NULL) == -1)
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return (-1);
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i++;
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}
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return (0);
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}
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