cd.c

#include"shell.h"



/**
 *_mycd - changes directory
 *Description:changes directorys
 *@info:struct
 *Return: 0 (success)
 */

int _mycd(info_t *info)
{
	char *c,  *dir, buffer[1024];
	int chdir_ret;

	c = getcwd(buffer, 1024);
	if (!c)
		_puts("TODO: >>getcwd failure emsg here<<\n");
	if (!info->argv[1])
	{
		dir = _getenv(info, "HOME=");
		if (!dir)
			chdir_ret = /* TODO: what should this be? */
				chdir((dir = _getenv(info, "PWD=")) ? dir : "/");
		else
			chdir_ret = chdir(dir);
	}
	else if (_strcmp(info->argv[1], "-") == 0)
	{
		if (!_getenv(info, "OLDPWD="))
		{
			_puts(c);
			_putchar('\n');
			return (1);
		}
		_puts(_getenv(info, "OLDPWD=")), _putchar('\n');
		chdir_ret = /* TODO: what should this be? */
			chdir((dir = _getenv(info, "OLDPWD=")) ? dir : "/");
	}
	else
		chdir_ret = chdir(info->argv[1]);
	if (chdir_ret == -1)
	{
		print_error(info, "can't cd to ");
		_eputs(info->argv[1]), _eputchar('\n');
	}
	else
	{
		_setenv(info, "OLDPWD", _getenv(info, "PWD="));
		_setenv(info, "PWD", getcwd(buffer, 1024));
	}
	return (0);
}