shell_cmds_0.c

#include "main.h"

/**
 * sc_exit - Exits the shell with an optional status code
 * @ac: The number of arguments
 * @av: The arguments
 *
 * Return: 0 if successful
 */
int sc_exit(int ac, char *av[])
{
	char *buf0 = NULL, *buf1 = NULL;
	int status = *((uchar_t *)get_shell_prop(NODE_EXIT_CODE_ID));

	if (ac > 0)
	{
		if (is_valid_uint(av[0], &status))
		{
			/* status = str_to_int(av[0]); */
		}
		else
		{
			buf0 = *((char **)get_shell_prop(EXEC_NAME_ID));
			buf1 = long_to_str(*((int *)get_shell_prop(LINE_NUMBER_ID)));
			write(STDERR_FILENO, buf0, str_len(buf0));
			write(STDERR_FILENO, ": ", 2);
			write(STDERR_FILENO, buf1, str_len(buf1));
			write(STDERR_FILENO, ": exit: Illegal number: ", 24);
			write(STDERR_FILENO, av[0], str_len(av[0]));
			write(STDERR_FILENO, "\n", 1);
			if (buf1 != NULL)
				free(buf1);
			return (EC_INVALID_ARGS);
		}
	}
	clean_up_shell();
	exit(status);
	return (status);
}

/**
 * sc_env - Prints the shell's environment variables
 * @ac: The number of arguments
 * @av: The arguments
 *
 * Return: 0 if successful
 */
int sc_env(int ac, char *av[])
{
	char **envp = *((char ***)get_shell_prop(ENVP_ID));
	int n = *((int *)get_shell_prop(ENVP_COUNT_ID));
	int i;

	(void)ac;
	(void)av;
	for (i = 0; i < n; i++)
	{
		write(STDOUT_FILENO, *(envp + i), str_len(*(envp + i)));
		write(STDOUT_FILENO, "\n", 1);
	}
	return (EC_SUCCESS);
}

/**
 * sc_help - Prints the help page of a built-in command
 * @ac: The number of arguments
 * @av: The arguments
 *
 * Return: 0 if successful
 */
int sc_help(int ac, char *av[])
{
	int i;
	cmd_help_t cmds_help[] = {
		{"alias", help_alias},
		{"cd", help_cd},
		{"env", help_env},
		{"exit", help_exit},
		{"help", help_help},
		{"history", help_history},
		{"setenv", help_setenv},
		{"unsetenv", help_unsetenv}
	};

	if (ac == 1)
	{
		for (i = 0; i < 9; i++)
		{
			if (str_eql(cmds_help[i].cmd_name, av[0]))
			{
				cmds_help[i].run();
				return (EC_SUCCESS);
			}
		}
		write(STDERR_FILENO, "help: ", 6);
		write(STDERR_FILENO, av[0], str_len(av[0]));
		write(STDERR_FILENO, ": not a built-in command\n", 25);
		return (EC_GENERAL_ERROR);
	}
	else if (ac > 1)
	{
		write(STDERR_FILENO, "help: Too many arguments.\n", 26);
		return (EC_GENERAL_ERROR);
	}
	else
	{
		help_program();
		return (EC_SUCCESS);
	}
}