53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#include <sys/cdefs.h>
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#include "namespace.h"
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#include <lib.h>
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#include <minix/u64.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <minix/config.h>
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#include <minix/const.h>
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#include <minix/type.h>
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#include <minix/minlib.h>
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#include <minix/partition.h>
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#include <sys/ioc_disk.h>
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#include <unistd.h>
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/*================================================================
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* minix_sizeup - determine device size
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*===============================================================*/
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int minix_sizeup(device, bytes)
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char *device;
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u64_t *bytes;
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{
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int fd;
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struct part_geom entry;
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struct stat st;
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if ((fd = open(device, O_RDONLY)) == -1) {
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if (errno != ENOENT)
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perror("sizeup open");
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return -1;
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}
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if (ioctl(fd, DIOCGETP, &entry) == -1) {
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perror("sizeup ioctl");
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if(fstat(fd, &st) < 0) {
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perror("fstat");
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entry.size = cvu64(0);
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} else {
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entry.size = cvu64(st.st_size);
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}
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}
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close(fd);
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*bytes = entry.size;
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return 0;
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}
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