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-rw-r--r--e2fslib/getsize.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/e2fslib/getsize.c b/e2fslib/getsize.c
deleted file mode 100644
index e8fadba..0000000
--- a/e2fslib/getsize.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * getsize.c --- get the size of a partition.
- *
- * Copyright (C) 1995, 1995 Theodore Ts'o.
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
- * %End-Header%
- */
-
-#define _LARGEFILE_SOURCE
-#define _LARGEFILE64_SOURCE
-
-#include <stdio.h>
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
-#include <fcntl.h>
-#ifdef HAVE_LINUX_FD_H
-#include <sys/ioctl.h>
-#include <linux/fd.h>
-#endif
-#ifdef HAVE_SYS_DISKLABEL_H
-#include <sys/ioctl.h>
-#include <sys/disklabel.h>
-#endif /* HAVE_SYS_DISKLABEL_H */
-
-#if defined(__linux__) && defined(_IO) && !defined(BLKGETSIZE)
-#define BLKGETSIZE _IO(0x12,96) /* return device size */
-#endif
-
-#include "ext2_fs.h"
-#include "ext2fs.h"
-
-static int valid_offset (int fd, ext2_loff_t offset)
-{
- char ch;
-
- if (ext2fs_llseek (fd, offset, 0) < 0)
- return 0;
- if (read (fd, &ch, 1) < 1)
- return 0;
- return 1;
-}
-
-/*
- * Returns the number of blocks in a partition
- */
-errcode_t ext2fs_get_device_size(const char *file, int blocksize,
- blk_t *retblocks)
-{
- int fd;
-#ifdef BLKGETSIZE
- unsigned long size;
-#endif
- ext2_loff_t high, low;
-#ifdef FDGETPRM
- struct floppy_struct this_floppy;
-#endif
-#ifdef HAVE_SYS_DISKLABEL_H
- int part;
- struct disklabel lab;
- struct partition *pp;
- char ch;
-#endif /* HAVE_SYS_DISKLABEL_H */
-
-#ifdef HAVE_OPEN64
- fd = open64(file, O_RDONLY);
-#else
- fd = open(file, O_RDONLY);
-#endif
- if (fd < 0)
- return errno;
-
-#ifdef BLKGETSIZE
- if (ioctl(fd, BLKGETSIZE, &size) >= 0) {
- close(fd);
- *retblocks = size / (blocksize / 512);
- return 0;
- }
-#endif
-#ifdef FDGETPRM
- if (ioctl(fd, FDGETPRM, &this_floppy) >= 0) {
- close(fd);
- *retblocks = this_floppy.size / (blocksize / 512);
- return 0;
- }
-#endif
-#ifdef HAVE_SYS_DISKLABEL_H
- part = strlen(file) - 1;
- if (part >= 0) {
- ch = file[part];
- if (isdigit(ch))
- part = 0;
- else if (ch >= 'a' && ch <= 'h')
- part = ch - 'a';
- else
- part = -1;
- }
- if (part >= 0 && (ioctl(fd, DIOCGDINFO, (char *)&lab) >= 0)) {
- pp = &lab.d_partitions[part];
- if (pp->p_size) {
- close(fd);
- *retblocks = pp->p_size / (blocksize / 512);
- return 0;
- }
- }
-#endif /* HAVE_SYS_DISKLABEL_H */
-
- /*
- * OK, we couldn't figure it out by using a specialized ioctl,
- * which is generally the best way. So do binary search to
- * find the size of the partition.
- */
- low = 0;
- for (high = 1024; valid_offset (fd, high); high *= 2)
- low = high;
- while (low < high - 1)
- {
- const ext2_loff_t mid = (low + high) / 2;
-
- if (valid_offset (fd, mid))
- low = mid;
- else
- high = mid;
- }
- valid_offset (fd, 0);
- close(fd);
- *retblocks = (low + 1) / blocksize;
- return 0;
-}
-
-#ifdef DEBUG
-int main(int argc, char **argv)
-{
- blk_t blocks;
- int retval;
-
- if (argc < 2) {
- fprintf(stderr, "Usage: %s device\n", argv[0]);
- exit(1);
- }
-
- retval = ext2fs_get_device_size(argv[1], 1024, &blocks);
- if (retval) {
- com_err(argv[0], retval,
- "while calling ext2fs_get_device_size");
- exit(1);
- }
- printf("Device %s has %d 1k blocks.\n", argv[1], blocks);
- exit(0);
-}
-#endif