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Eject.c
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Eject.c
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/*
Using Watcom C Compiler
wcl386 /l=win386/bt=windows eject.c
or from IDE that is easier
*/
#include "eject.h"
int main(int argc,char **argv)
{
char **pArg=NULL;
/*pointer to the command line arguments pointer*/
int nLenArg=0;
/*to avoid calling strlen(); every time*/
int nLoop=0;
/*counter variable */
UINT uDriveType=0;
/*to check if a drive is of a particular type */
int nDrivesFound=0;
char rgszDrive[9];
/*temporary command line argument holder*/
char rgszDriveName[7];
/*it contains the drive name in the form of \\.\X:* or a temporary drive*/
if(argc>2){
/*error! We need zero or one parameter from command line*/
usage();
return 1;
}
if(argc==2){
pArg=&argv[1];
nLenArg=strlen(*pArg);
if(nLenArg>8|nLenArg==3|nLenArg==7){
/*error! Length argument not valid, see usage() for options */
usage();
return 1;
}
strcpy(rgszDrive,*pArg);
if(nLenArg==1) {
rgszDrive[1]='\0';
}
if(nLenArg==2) {
rgszDrive[2]='\0';
if(rgszDrive[1]!=':') {
usage();
return 1;
}
}
if(nLenArg<3)
if(!(isalpha(rgszDrive[0]))){
usage();
return 1;
}
if(nLenArg>2){
if(rgszDrive[0]!='-'){
/*if not drive letter, first argument char must be '-'*/
usage();
return 1;
}
}
if(nLenArg==4){
if(rgszDrive[1]!='a'){usage();return 1;}
if(rgszDrive[2]!='l'){usage();return 1;}
if(rgszDrive[3]!='l'){usage();return 1;}
rgszDrive[4]='\0';
}
if(nLenArg==5){
if(rgszDrive[1]!='i' && rgszDrive[1]!='h'){usage();return 1;}
if(rgszDrive[2]!='n' && rgszDrive[2]!='e'){usage();return 1;}
if(rgszDrive[3]!='f' && rgszDrive[3]!='l'){usage();return 1;}
if(rgszDrive[4]!='o' && rgszDrive[4]!='p'){usage();return 1;}
rgszDrive[5]='\0';
if(rgszDrive[1]=='i')
header();
else
usage();
return 0;
}
if(nLenArg==6){
if(rgszDrive[1]!='c'){usage();return 1;}
if(rgszDrive[2]!='d'){usage();return 1;}
if(rgszDrive[3]!='r'){usage();return 1;}
if(rgszDrive[4]!='o'){usage();return 1;}
if(rgszDrive[5]!='m'){usage();return 1;}
rgszDrive[6]='\0';
}
if(nLenArg==8){
if(rgszDrive[1]!='n'){usage();return 1;}
if(rgszDrive[2]!='o'){usage();return 1;}
if(rgszDrive[3]!='c'){usage();return 1;}
if(rgszDrive[4]!='d'){usage();return 1;}
if(rgszDrive[5]!='r'){usage();return 1;}
if(rgszDrive[6]!='o'){usage();return 1;}
if(rgszDrive[7]!='m'){usage();return 1;}
rgszDrive[8]='\0';
}
}
printf("OS: ");
getWinVer();
switch(nLenArg){
case 1:
case 2:
//drive choosen by user
rgszDrive[0]=toupper(rgszDrive[0]);
rgszDriveName[0]='\\';
rgszDriveName[1]='\\';
rgszDriveName[2]='.';
rgszDriveName[3]='\\';
rgszDriveName[4]=rgszDrive[0];
rgszDriveName[5]=':';
rgszDriveName[6]='\0';
IOCTLEject(rgszDriveName,rgszDrive);
break;
case 4:
/*all removable and cdrom drives*/
for(nLoop='A';nLoop<='Z';nLoop++){
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\\';
rgszDrive[3]='\0';
uDriveType=GetDriveType(rgszDrive);
if (uDriveType==DRIVE_REMOVABLE || uDriveType==DRIVE_CDROM){
nDrivesFound++;
rgszDriveName[0]='\\';
rgszDriveName[1]='\\';
rgszDriveName[2]='.';
rgszDriveName[3]='\\';
rgszDriveName[4]=nLoop;
rgszDriveName[5]=':';
rgszDriveName[6]='\0';
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\0';
IOCTLEject(rgszDriveName,rgszDrive);
}
}
if(!nDrivesFound)
printf("\nNo Drives found!");
//very, very unlikely
break;
case 5:
//only CD-ROM type
for(nLoop='A';nLoop<='Z';nLoop++){
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\\';
rgszDrive[3]='\0';
uDriveType=GetDriveType(rgszDrive);
if (uDriveType==DRIVE_CDROM){
nDrivesFound++;
rgszDriveName[0]='\\';
rgszDriveName[1]='\\';
rgszDriveName[2]='.';
rgszDriveName[3]='\\';
rgszDriveName[4]=nLoop;
rgszDriveName[5]=':';
rgszDriveName[6]='\0';
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\0';
IOCTLEject(rgszDriveName,rgszDrive);
}
}
if(!nDrivesFound)
printf("\nNo CD-ROM (Atapi) drives found!");
//very unlikely
break;
case 8:
//only removable type
for(nLoop='A';nLoop<='Z';nLoop++){
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\\';
rgszDrive[3]='\0';
uDriveType=GetDriveType(rgszDrive);
/* today most PC doesn't have floppy but comes with smart card
reader for example. I don't check for the moment, if it's a classic floppy
instead. */
if (uDriveType==DRIVE_REMOVABLE){
nDrivesFound++;
rgszDriveName[0]='\\';
rgszDriveName[1]='\\';
rgszDriveName[2]='.';
rgszDriveName[3]='\\';
rgszDriveName[4]=nLoop;
rgszDriveName[5]=':';
rgszDriveName[6]='\0';
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\0';
IOCTLEject(rgszDriveName,rgszDrive);
}
}
if(!nDrivesFound)
printf("\nNo removable drives found!");
break;
default:
//no command line argument
//we eject first CD-ROM unit
for(nLoop='A';nLoop<='Z';nLoop++){
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\\';
rgszDrive[3]='\0';
uDriveType=GetDriveType(rgszDrive);
if (uDriveType==DRIVE_CDROM){
nDrivesFound++;
if(nDrivesFound==2)
break;
rgszDriveName[0]='\\';
rgszDriveName[1]='\\';
rgszDriveName[2]='.';
rgszDriveName[3]='\\';
rgszDriveName[4]=nLoop;
rgszDriveName[5]=':';
rgszDriveName[6]='\0';
rgszDrive[0]=nLoop;
rgszDrive[1]=':';
rgszDrive[2]='\0';
IOCTLEject(rgszDriveName,rgszDrive);
}
}
if(!nDrivesFound)
printf("\nNo CD-ROM (Atapi) drives found!");
//very unlikely
}
return 0;
}