blob: c85f30e670db4e15a18d70c2c51c44d1e5c2174d [file] [log] [blame]
/*
* partinfo.c
*
* Originally written by Alain Knaff, <alknaff@innet.lu>.
*
* Cleaned up by Theodore Ts'o, <tytso@mit.edu>.
*
*/
#include <sys/types.h>
#include <fcntl.h>
#include <stdio.h>
#include <linux/fs.h>
#include <linux/hdreg.h>
#include <unistd.h>
#include <stdlib.h>
void print_error(char *operation, int error, char *device)
{
fprintf(stderr, "%s failed for %s: %s\n", operation, device,
strerror(error));
}
int main(int argc, char **argv)
{
struct hd_geometry loc;
int fd, i;
long size;
if (argc == 1) {
fprintf(stderr, "Usage: %s <dev1> <dev2> <dev3>\n\n"
"This program prints out the partition information "
"for a set of devices\n"
"A common way to use this progrma is:\n\n\t"
"%s /dev/hda?\n\n", argv[0], argv[0]);
exit(1);
}
for (i=1; i < argc; i++) {
fd = open(argv[i], O_RDONLY);
if (fd < 0) {
print_error("open", errno, argv[1]);
continue;
}
if (ioctl(fd, HDIO_GETGEO, &loc) < 0) {
print_error("HDIO_GETGEO ioctl", errno, argv[1]);
close(fd);
continue;
}
if (ioctl(fd, BLKGETSIZE, &size) < 0) {
print_error("BLKGETSIZE ioctl", errno, argv[1]);
close(fd);
continue;
}
printf("%s: h=%3d s=%3d c=%4d start=%8d size=%8d end=%8d\n",
argv[i],
loc.heads, (int)loc.sectors, loc.cylinders,
(int)loc.start, size, (int) loc.start + size -1);
close(fd);
}
exit(0);
}