source:
MondoRescue/trunk/mindi/Mindi/DiskSize/lib/DiskSize.c@
1
| Last change on this file since 1 was 1, checked in by , 19 years ago | |
|---|---|
| File size: 381 bytes | |
| Line | |
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| 1 | #include <fcntl.h> |
| 2 | #include <sys/types.h> |
| 3 | #include <sys/mount.h> |
| 4 | #include "DiskSize.h" |
| 5 | |
| 6 | long |
| 7 | get_size_of_disk(disk) |
| 8 | const char * disk; |
| 9 | { |
| 10 | int fd; |
| 11 | unsigned long ul; |
| 12 | if ((fd = open (disk, O_RDONLY)) == -1) { |
| 13 | return 0; /* couldn't open */ |
| 14 | } |
| 15 | if (ioctl (fd, BLKGETSIZE, &ul) == -1) { |
| 16 | return 0; /* couldn't ioctl */ |
| 17 | } |
| 18 | close (fd); |
| 19 | return ul / 2; |
| 20 | } |
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