82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
|
// This is NEW CODE to demonstrate the drvinf syscall by printing convenient
|
||
|
|
// information about drives to the console.
|
||
|
|
#include <stdio.h>
|
||
|
|
#include "../kernel/syscdefs.h"
|
||
|
|
|
||
|
|
#define DRIVE_SEARCH_MAX 1000
|
||
|
|
|
||
|
|
// Inline definition of the syscall
|
||
|
|
int drvinf(int drivenumber, struct __syscdefs_driveinfo* structure);
|
||
|
|
|
||
|
|
#define SIZEOUTPUTLENGTH 40
|
||
|
|
#define KB 1024ULL
|
||
|
|
#define MB (KB*1024)
|
||
|
|
#define GB (MB*1024)
|
||
|
|
#define TB (GB*1024)
|
||
|
|
|
||
|
|
void formatsizevalue(char* output, long long value) {
|
||
|
|
int ntb = value/TB;
|
||
|
|
value -= ntb*TB;
|
||
|
|
int ngb = value/GB;
|
||
|
|
value -= ngb*GB;
|
||
|
|
int nmb = value/MB;
|
||
|
|
value -= nmb*MB;
|
||
|
|
int nkb = value/KB;
|
||
|
|
value -= nkb*KB;
|
||
|
|
int nb = (int) value; // The remainder is any leftover bytes
|
||
|
|
if (ntb > 0) {
|
||
|
|
if (nb > 0) {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dTB %dGB %dMB %dKB %d bytes", ntb, ngb, nmb, nkb, nb);
|
||
|
|
} else {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dTB %dGB %dMB %dKB", ntb, ngb, nmb, nkb);
|
||
|
|
}
|
||
|
|
} else if (ngb > 0) {
|
||
|
|
if (nb > 0) {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dGB %dMB %dKB %d bytes", ngb, nmb, nkb, nb);
|
||
|
|
} else {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dGB %dMB %dKB", ngb, nmb, nkb);
|
||
|
|
}
|
||
|
|
} else if (nmb > 0) {
|
||
|
|
if (nb > 0) {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dMB %dKB %d bytes", nmb, nkb, nb);
|
||
|
|
} else {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dMB %dKB", nmb, nkb);
|
||
|
|
}
|
||
|
|
} else if (nkb > 0) {
|
||
|
|
if (nb > 0) {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dKB %d bytes", nkb, nb);
|
||
|
|
} else {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%dKB", nkb);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
snprintf(output, SIZEOUTPUTLENGTH, "%d bytes", nb);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
char totalbuf[SIZEOUTPUTLENGTH];
|
||
|
|
char freebuf[SIZEOUTPUTLENGTH];
|
||
|
|
|
||
|
|
void printinfo(struct __syscdefs_driveinfo* info) {
|
||
|
|
//printf("[#%d] %s: %d * %lld, %lld free [%s]\n", info->drivenumber, info->name, info->blocksize, info->totalblocks, info->freedatablocks, info->fsname);
|
||
|
|
|
||
|
|
formatsizevalue(totalbuf, info->blocksize * info->totalblocks);
|
||
|
|
formatsizevalue(freebuf, info->blocksize * info->freedatablocks);
|
||
|
|
printf("[#%d] %s:\t%s total\t%s free\t[%s]\n", info->drivenumber, info->name, totalbuf, freebuf, info->fsname);
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char** argv) {
|
||
|
|
struct __syscdefs_driveinfo info;
|
||
|
|
//int isfirst = 1;
|
||
|
|
for (int i = 0; i < DRIVE_SEARCH_MAX; i++) {
|
||
|
|
int result = drvinf(i, &info);
|
||
|
|
if (result >= 0) {
|
||
|
|
/*if (isfirst) {
|
||
|
|
isfirst = 0;
|
||
|
|
} else {
|
||
|
|
printf("\n");
|
||
|
|
}*/
|
||
|
|
printinfo(&info);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|