/* * cdrom_disc_status.c * Version: 1.0 * by Hans Schou <chlor@schou.dk> * License: GPL * * Compile: *   gcc -o cdrom_disc_status cdrom_disc_status.c * * Known bugs: *   Can not compile on Linux S/390 *   Can not compile on Linux Alpha XP1000 */#ifdef HAVE_CONFIG_H#include <config.h> /* output from configure */#endif#include <sys/ioctl.h> /* ioctl */#include <linux/cdrom.h> /* CDROM_DISC_STATUS */#include <fcntl.h> /* O_RDONLY O_NONBLOCK */#include <stdio.h> /* printf open close */char package[] =#ifdef PACKAGE	"Builded with package: " PACKAGE "-" VERSION "\n";#else	"";#endif	struct statustext {		int statuscode;		char *text;	} statustab[] = {		{CDS_NO_INFO,         "CDS_NO_INFO"},		{CDS_NO_DISC,         "CDS_NO_DISC"},		{CDS_TRAY_OPEN,       "CDS_TRAY_OPEN"},		{CDS_DRIVE_NOT_READY, "CDS_DRIVE_NOT_READY"},		{CDS_DISC_OK,         "CDS_DISC_OK"},		{CDS_AUDIO,           "CDS_AUDIO"},		{CDS_DATA_1,          "CDS_DATA_1"},		{CDS_DATA_2,          "CDS_DATA_2"},		{CDS_XA_2_1,          "CDS_XA_2_1"},		{CDS_XA_2_2,          "CDS_XA_2_2"},		{CDS_MIXED,           "CDS_MIXED"}	};#define STATUSCOUNT (sizeof(statustab) / sizeof(struct statustext))/* * Function: text_status * Return: Short text description for cdrom status */char *text_status( int status ) {	/* Text from <linux/cdrom.h> */	int i = 0;	while (i < STATUSCOUNT) {		if (status == statustab[i].statuscode)			return statustab[i].text;		i++;	}	return (char *)"unknown status";}/* * Function: cdrom_disc_status * Return: Status of cdrom drive */int cdrom_disc_status( char *cddev ) {	int cdrom = 0;	int result = -1;	cdrom = open( cddev, O_RDONLY | O_NONBLOCK );	if ( cdrom > 0 ) {		result = ioctl( cdrom, CDROM_DISC_STATUS );		close( cdrom );	}	return result;}int main( int argc, char *argv[] ) {	int status = -2;	int i = 0;	if ( argc != 2 ) {		printf("cdrom_disc_status version 1.0\n");		printf("%s", package);		printf("\nUsage:\n  cdrom_disc_status <device>\n");		printf("Example:\n  cdrom_disc_status /dev/cdrom\n");		printf("\nReturn codes:\n");		i = 0;		while (i < STATUSCOUNT) {			printf("%d %s\n", statustab[i].statuscode, statustab[i].text);			i++;		}	} else {		status = cdrom_disc_status(argv[1]);		printf("%d %s\n", status, text_status(status) );	}	return status;}