56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* subshell_exec.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2021/11/16 01:57:38 by lperrey #+# #+# */
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/* Updated: 2021/12/22 21:49:32 by lperrey ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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static void exec_builtin(t_cmd *cmd, t_all *c);
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int cmd_exec_in_subshell(t_cmd *cmd, t_all *c)
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{
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struct sigaction signal_behaviour;
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cmd->pid = fork();
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if (cmd->pid == -1)
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perror("fork()");
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if (cmd->pid == 0)
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{
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ft_bzero(&signal_behaviour, sizeof signal_behaviour);
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signal_behaviour.sa_handler = SIG_DFL;
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sigaction(SIGINT, &signal_behaviour, NULL);
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sigaction(SIGQUIT, &signal_behaviour, NULL);
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if (cmd->fd_in != STDIN_FILENO)
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if (dup2(cmd->fd_in, STDIN_FILENO) == -1)
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return (ft_reti_perror(EXIT_FAILURE, "dup2()"));
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if (cmd->fd_out != STDOUT_FILENO)
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if (dup2(cmd->fd_out, STDOUT_FILENO) == -1)
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return (ft_reti_perror(EXIT_FAILURE, "dup2()"));
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close_pipeline_fd(c->pipeline);
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if (cmd->builtin_f)
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exec_builtin(cmd, c);
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else if (execve(cmd->path, cmd->argv, environ) == -1)
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return (ft_reti_perror_io(EXIT_FAILURE, "execve() ", cmd->argv[0]));
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}
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return (EXIT_SUCCESS);
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}
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static void exec_builtin(t_cmd *cmd, t_all *c)
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{
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struct sigaction signal_behaviour;
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int ret;
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ft_bzero(&signal_behaviour, sizeof signal_behaviour);
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signal_behaviour.sa_handler = SIG_IGN;
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sigaction(SIGPIPE, &signal_behaviour, NULL);
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ret = cmd->builtin_f(ft_2d_arrlen(cmd->argv), cmd->argv, c);
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exit_free(c, ret);
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}
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