redirect_out.c File Reference

#include "tokens.h"
#include "shell.h"
#include "redirection.h"
#include "execute.h"
#include "pipe.h"
#include <sys/wait.h>

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Functions
static int	open_and_redirect (t_ast *node, t_ms_data *data)
	redirect out ">" to the file output
int	redirect_out (t_ast *node, t_ms_data *data)

Function Documentation

open_and_redirect()

static int open_and_redirect ( t_ast *  node, t_ms_data *  data  )

static

redirect out ">" to the file output

--

• Parameters

  node	current node in the AST

• Parameters

  data	minishell data structure

• Returns

  status:

• 0: success
• 1: error

Definition at line 33 of file redirect_out.c.

{
    int fd;
 
    if (data->std_out == -1)
    {
        data->std_out = open_file(node->right, ">");
        if (data->std_out == -1)
            return (EXIT_FAILURE);
    }
    else
    {
        fd = open_file(node->right, ">");
        if (fd == -1)
            return (EXIT_FAILURE);
        dup2(fd, STDOUT_FILENO);
        close(fd);
    }
    return (EXIT_SUCCESS);
}

References EXIT_FAILURE, EXIT_SUCCESS, open_file(), s_ast::right, and s_ms_data::std_out.

Referenced by redirect_out().

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redirect_out()

int redirect_out	(	t_ast *	node,
		t_ms_data *	data
	)

Definition at line 54 of file redirect_out.c.

{
    pid_t   pid;
    int     exec_status;
    int     status;
 
    pid = fork();
    if (pid == -1)
        return (EXIT_FAILURE);
    if (pid == 0)
    {
        if (open_and_redirect(node, data) != 0)
            exit(EXIT_FAILURE);
        exec_status = execute_ast(node->left, data);
        exit(exec_status);
    }
    if (waitpid(pid, &status, 0) == -1)
        return (EXIT_FAILURE);
    if (WIFSIGNALED(status))
        return (128 + WTERMSIG(status));
    return (WEXITSTATUS(status));
}

References execute_ast(), EXIT_FAILURE, s_ast::left, and open_and_redirect().

Referenced by execute_ast().

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