diff options
author | bigbiff bigbiff <bigbiff@teamw.in> | 2013-02-23 02:55:50 +0100 |
---|---|---|
committer | bigbiff bigbiff <bigbiff@teamw.in> | 2013-02-25 15:06:46 +0100 |
commit | e60683a0d553b6488c564863f4e48954944fb0f8 (patch) | |
tree | 9364f97cb88b7c1359f5f06dfb32150a78168c31 /libblkid/sysfs.h | |
parent | Fix building of updater for 4.2 environment (diff) | |
download | android_bootable_recovery-e60683a0d553b6488c564863f4e48954944fb0f8.tar android_bootable_recovery-e60683a0d553b6488c564863f4e48954944fb0f8.tar.gz android_bootable_recovery-e60683a0d553b6488c564863f4e48954944fb0f8.tar.bz2 android_bootable_recovery-e60683a0d553b6488c564863f4e48954944fb0f8.tar.lz android_bootable_recovery-e60683a0d553b6488c564863f4e48954944fb0f8.tar.xz android_bootable_recovery-e60683a0d553b6488c564863f4e48954944fb0f8.tar.zst android_bootable_recovery-e60683a0d553b6488c564863f4e48954944fb0f8.zip |
Diffstat (limited to '')
-rw-r--r-- | libblkid/sysfs.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/libblkid/sysfs.h b/libblkid/sysfs.h new file mode 100644 index 000000000..739f9de12 --- /dev/null +++ b/libblkid/sysfs.h @@ -0,0 +1,84 @@ +/* + * Copyright (C) 2011 Karel Zak <kzak@redhat.com> + */ +#ifndef UTIL_LINUX_SYSFS_H +#define UTIL_LINUX_SYSFS_H + + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <stdint.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <string.h> +#include <inttypes.h> +#include <dirent.h> + +struct sysfs_cxt { + dev_t devno; + int dir_fd; /* /sys/block/<name> */ + char *dir_path; + struct sysfs_cxt *parent; + + unsigned int scsi_host, + scsi_channel, + scsi_target, + scsi_lun; + + unsigned int has_hctl : 1; +}; + +#define UL_SYSFSCXT_EMPTY { 0, -1, NULL, NULL, 0, 0, 0, 0, 0 } + +extern char *sysfs_devno_attribute_path(dev_t devno, char *buf, + size_t bufsiz, const char *attr); +extern int sysfs_devno_has_attribute(dev_t devno, const char *attr); +extern char *sysfs_devno_path(dev_t devno, char *buf, size_t bufsiz); +extern char *sysfs_devno_to_devpath(dev_t devno, char *buf, size_t bufsiz); +extern dev_t sysfs_devname_to_devno(const char *name, const char *parent); + +extern int sysfs_init(struct sysfs_cxt *cxt, dev_t devno, struct sysfs_cxt *parent) + __attribute__ ((warn_unused_result)); +extern void sysfs_deinit(struct sysfs_cxt *cxt); + +extern DIR *sysfs_opendir(struct sysfs_cxt *cxt, const char *attr); + +extern int sysfs_stat(struct sysfs_cxt *cxt, const char *attr, struct stat *st); +extern ssize_t sysfs_readlink(struct sysfs_cxt *cxt, const char *attr, + char *buf, size_t bufsiz); +extern int sysfs_has_attribute(struct sysfs_cxt *cxt, const char *attr); + +extern int sysfs_scanf(struct sysfs_cxt *cxt, const char *attr, + const char *fmt, ...) + __attribute__ ((format (scanf, 3, 4))); + +extern int sysfs_read_s64(struct sysfs_cxt *cxt, const char *attr, int64_t *res); +extern int sysfs_read_u64(struct sysfs_cxt *cxt, const char *attr, uint64_t *res); +extern int sysfs_read_int(struct sysfs_cxt *cxt, const char *attr, int *res); + +extern char *sysfs_get_devname(struct sysfs_cxt *cxt, char *buf, size_t bufsiz); + +extern char *sysfs_strdup(struct sysfs_cxt *cxt, const char *attr); + +extern int sysfs_count_dirents(struct sysfs_cxt *cxt, const char *attr); +extern int sysfs_count_partitions(struct sysfs_cxt *cxt, const char *devname); +extern dev_t sysfs_partno_to_devno(struct sysfs_cxt *cxt, int partno); +extern char *sysfs_get_slave(struct sysfs_cxt *cxt); + +extern int sysfs_is_partition_dirent(DIR *dir, struct dirent *d, + const char *parent_name); + +extern int sysfs_devno_to_wholedisk(dev_t dev, char *diskname, + size_t len, dev_t *diskdevno); + +extern int sysfs_scsi_get_hctl(struct sysfs_cxt *cxt, int *h, + int *c, int *t, int *l); +extern char *sysfs_scsi_host_strdup_attribute(struct sysfs_cxt *cxt, + const char *type, const char *attr); +extern int sysfs_scsi_host_is(struct sysfs_cxt *cxt, const char *type); +extern int sysfs_scsi_has_attribute(struct sysfs_cxt *cxt, const char *attr); +extern int sysfs_scsi_path_contains(struct sysfs_cxt *cxt, const char *pattern); + +#endif /* UTIL_LINUX_SYSFS_H */ |