From 7b4c7a681cc4c0a53dc8a8baf4853e921cfbf5de Mon Sep 17 00:00:00 2001 From: bigbiff Date: Thu, 1 Jan 2015 19:44:14 -0500 Subject: Update blkid to 2.25.0 Break libblkid into 4 libraries: libblkid, libuuid, libutil-linux and libfdisk. This should help in later patch updates. Change-Id: I680d9a7feb031e5c29a603e9c58aff4b65826262 --- libblkid/blkdev.c | 375 ------------------------------------------------------ 1 file changed, 375 deletions(-) delete mode 100644 libblkid/blkdev.c (limited to 'libblkid/blkdev.c') diff --git a/libblkid/blkdev.c b/libblkid/blkdev.c deleted file mode 100644 index 514082e34..000000000 --- a/libblkid/blkdev.c +++ /dev/null @@ -1,375 +0,0 @@ -/* - * No copyright is claimed. This code is in the public domain; do with - * it what you wish. - * - * Written by Karel Zak - */ -#include -#include -#include -#include -#include - -#ifdef HAVE_LINUX_FD_H -#include -#endif - -#ifdef HAVE_SYS_DISKLABEL_H -#include -#endif - -#ifdef HAVE_SYS_DISK_H -#ifdef HAVE_SYS_QUEUE_H -#include /* for LIST_HEAD */ -#endif -#include -#endif - -#include "blkdev.h" -#include "c.h" -#include "linux_version.h" -#include "xalloc.h" - -static long -blkdev_valid_offset (int fd, off_t offset) { - char ch; - - if (lseek (fd, offset, 0) < 0) - return 0; - if (read (fd, &ch, 1) < 1) - return 0; - return 1; -} - -int is_blkdev(int fd) -{ - struct stat st; - return (fstat(fd, &st) == 0 && S_ISBLK(st.st_mode)); -} - -off_t -blkdev_find_size (int fd) { - uintmax_t high, low = 0; - - for (high = 1024; blkdev_valid_offset (fd, high); ) { - if (high == UINTMAX_MAX) - return -1; - - low = high; - - if (high >= UINTMAX_MAX/2) - high = UINTMAX_MAX; - else - high *= 2; - } - - while (low < high - 1) - { - uintmax_t mid = (low + high) / 2; - - if (blkdev_valid_offset (fd, mid)) - low = mid; - else - high = mid; - } - blkdev_valid_offset (fd, 0); - return (low + 1); -} - -/* get size in bytes */ -int -blkdev_get_size(int fd, unsigned long long *bytes) -{ -#ifdef DKIOCGETBLOCKCOUNT - /* Apple Darwin */ - if (ioctl(fd, DKIOCGETBLOCKCOUNT, bytes) >= 0) { - *bytes <<= 9; - return 0; - } -#endif - -#ifdef BLKGETSIZE64 - { -#ifdef __linux__ - int ver = get_linux_version(); - - /* kernels 2.4.15-2.4.17, had a broken BLKGETSIZE64 */ - if (ver >= KERNEL_VERSION (2,6,0) || - (ver >= KERNEL_VERSION (2,4,18) && ver < KERNEL_VERSION (2,5,0))) -#endif - if (ioctl(fd, BLKGETSIZE64, bytes) >= 0) - return 0; - } -#endif /* BLKGETSIZE64 */ - -#ifdef BLKGETSIZE - { - unsigned long size; - - if (ioctl(fd, BLKGETSIZE, &size) >= 0) { - *bytes = ((unsigned long long)size << 9); - return 0; - } - } - -#endif /* BLKGETSIZE */ - -#ifdef DIOCGMEDIASIZE - /* FreeBSD */ - if (ioctl(fd, DIOCGMEDIASIZE, bytes) >= 0) - return 0; -#endif - -#ifdef FDGETPRM - { - struct floppy_struct this_floppy; - - if (ioctl(fd, FDGETPRM, &this_floppy) >= 0) { - *bytes = this_floppy.size << 9; - return 0; - } - } -#endif /* FDGETPRM */ - -#ifdef HAVE_SYS_DISKLABEL_H - { - /* - * This code works for FreeBSD 4.11 i386, except for the full device - * (such as /dev/ad0). It doesn't work properly for newer FreeBSD - * though. FreeBSD >= 5.0 should be covered by the DIOCGMEDIASIZE - * above however. - * - * Note that FreeBSD >= 4.0 has disk devices as unbuffered (raw, - * character) devices, so we need to check for S_ISCHR, too. - */ - int part = -1; - struct disklabel lab; - struct partition *pp; - char ch; - struct stat st; - - if ((fstat(fd, &st) >= 0) && - (S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode))) - part = st.st_rdev & 7; - - if (part >= 0 && (ioctl(fd, DIOCGDINFO, (char *)&lab) >= 0)) { - pp = &lab.d_partitions[part]; - if (pp->p_size) { - *bytes = pp->p_size << 9; - return 0; - } - } - } -#endif /* HAVE_SYS_DISKLABEL_H */ - - { - struct stat st; - - if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode)) { - *bytes = st.st_size; - return 0; - } - if (!S_ISBLK(st.st_mode)) - return -1; - } - - *bytes = blkdev_find_size(fd); - return 0; -} - -/* get 512-byte sector count */ -int -blkdev_get_sectors(int fd, unsigned long long *sectors) -{ - unsigned long long bytes; - - if (blkdev_get_size(fd, &bytes) == 0) { - *sectors = (bytes >> 9); - return 0; - } - - return -1; -} - -/* - * Get logical sector size. - * - * This is the smallest unit the storage device can - * address. It is typically 512 bytes. - */ -int blkdev_get_sector_size(int fd, int *sector_size) -{ -#ifdef BLKSSZGET - if (ioctl(fd, BLKSSZGET, sector_size) >= 0) - return 0; - return -1; -#else - *sector_size = DEFAULT_SECTOR_SIZE; - return 0; -#endif -} - -/* - * Get physical block device size. The BLKPBSZGET is supported since Linux - * 2.6.32. For old kernels is probably the best to assume that physical sector - * size is the same as logical sector size. - * - * Example: - * - * rc = blkdev_get_physector_size(fd, &physec); - * if (rc || physec == 0) { - * rc = blkdev_get_sector_size(fd, &physec); - * if (rc) - * physec = DEFAULT_SECTOR_SIZE; - * } - */ -int blkdev_get_physector_size(int fd, int *sector_size) -{ -#ifdef BLKPBSZGET - if (ioctl(fd, BLKPBSZGET, §or_size) >= 0) - return 0; - return -1; -#else - *sector_size = DEFAULT_SECTOR_SIZE; - return 0; -#endif -} - -/* - * Return the alignment status of a device - */ -int blkdev_is_misaligned(int fd) -{ -#ifdef BLKALIGNOFF - int aligned; - - if (ioctl(fd, BLKALIGNOFF, &aligned) < 0) - return 0; /* probably kernel < 2.6.32 */ - /* - * Note that kernel returns -1 as alignement offset if no compatible - * sizes and alignments exist for stacked devices - */ - return aligned != 0 ? 1 : 0; -#else - return 0; -#endif -} - -int blkdev_is_cdrom(int fd) -{ -#ifdef CDROM_GET_CAPABILITY - int ret; - - if ((ret = ioctl(fd, CDROM_GET_CAPABILITY, NULL)) < 0) - return 0; - else - return ret; -#else - return 0; -#endif -} - -/* - * Get kernel's interpretation of the device's geometry. - * - * Returns the heads and sectors - but not cylinders - * as it's truncated for disks with more than 65535 tracks. - * - * Note that this is deprecated in favor of LBA addressing. - */ -int blkdev_get_geometry(int fd, unsigned int *h, unsigned int *s) -{ -#ifdef HDIO_GETGEO - struct hd_geometry geometry; - - if (ioctl(fd, HDIO_GETGEO, &geometry) == 0) { - *h = geometry.heads; - *s = geometry.sectors; - return 0; - } -#else - *h = 0; - *s = 0; -#endif - return -1; -} - -/* - * Convert scsi type to human readable string. - */ -const char *blkdev_scsi_type_to_name(int type) -{ - switch (type) { - case SCSI_TYPE_DISK: - return "disk"; - case SCSI_TYPE_TAPE: - return "tape"; - case SCSI_TYPE_PRINTER: - return "printer"; - case SCSI_TYPE_PROCESSOR: - return "processor"; - case SCSI_TYPE_WORM: - return "worm"; - case SCSI_TYPE_ROM: - return "rom"; - case SCSI_TYPE_SCANNER: - return "scanner"; - case SCSI_TYPE_MOD: - return "mo-disk"; - case SCSI_TYPE_MEDIUM_CHANGER: - return "changer"; - case SCSI_TYPE_COMM: - return "comm"; - case SCSI_TYPE_RAID: - return "raid"; - case SCSI_TYPE_ENCLOSURE: - return "enclosure"; - case SCSI_TYPE_RBC: - return "rbc"; - case SCSI_TYPE_OSD: - return "osd"; - case SCSI_TYPE_NO_LUN: - return "no-lun"; - default: - break; - } - return NULL; -} - -#ifdef TEST_PROGRAM -#include -#include -#include -int -main(int argc, char **argv) -{ - unsigned long long bytes; - unsigned long long sectors; - int sector_size, phy_sector_size; - int fd; - - if (argc != 2) { - fprintf(stderr, "usage: %s device\n", argv[0]); - exit(EXIT_FAILURE); - } - - if ((fd = open(argv[1], O_RDONLY)) < 0) - err(EXIT_FAILURE, "open %s failed", argv[1]); - - if (blkdev_get_size(fd, &bytes) < 0) - err(EXIT_FAILURE, "blkdev_get_size() failed"); - if (blkdev_get_sectors(fd, §ors) < 0) - err(EXIT_FAILURE, "blkdev_get_sectors() failed"); - if (blkdev_get_sector_size(fd, §or_size) < 0) - err(EXIT_FAILURE, "blkdev_get_sector_size() failed"); - if (blkdev_get_physector_size(fd, &phy_sector_size) < 0) - err(EXIT_FAILURE, "blkdev_get_physector_size() failed"); - - printf(" bytes: %llu\n", bytes); - printf(" sectors: %llu\n", sectors); - printf(" sector size: %d\n", sector_size); - printf("phy-sector size: %d\n", phy_sector_size); - - return EXIT_SUCCESS; -} -#endif /* TEST_PROGRAM */ -- cgit v1.2.3