61ed526374
This is a requirement for implementing calls such as getmntinfo(3). VFS is now responsible for filling in some of the structure's fields. Change-Id: I0c1fa78019587efefd2949b3be38cd9a7ddc2ced
126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
#include "inc.h"
|
|
#include <assert.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/statvfs.h>
|
|
#include <minix/com.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
#include <minix/vfsif.h>
|
|
|
|
|
|
/*===========================================================================*
|
|
* stat_dir_record *
|
|
*===========================================================================*/
|
|
static int stat_dir_record(
|
|
register struct dir_record *dir, /* pointer to dir record to stat */
|
|
int pipe_pos, /* position in a pipe, supplied by fstat() */
|
|
endpoint_t who_e, /* Caller endpoint */
|
|
cp_grant_id_t gid /* grant for the stat buf */
|
|
)
|
|
{
|
|
/* This function returns all the info about a particular inode. It's missing
|
|
* the recording date because of a bug in the standard functions stdtime.
|
|
* Once the bug is fixed the function can be called inside this function to
|
|
* return the date. */
|
|
|
|
/* Common code for stat and fstat system calls. */
|
|
struct stat statbuf;
|
|
int r;
|
|
struct tm ltime;
|
|
time_t time1;
|
|
u32_t blocks;
|
|
|
|
blocks = v_pri.volume_space_size_l;
|
|
/* The unit of blocks should be 512 */
|
|
assert(v_pri.logical_block_size_l >= 512);
|
|
blocks = blocks * (v_pri.logical_block_size_l >> 9);
|
|
|
|
memset(&statbuf, 0, sizeof(struct stat));
|
|
|
|
statbuf.st_dev = fs_dev; /* the device of the file */
|
|
statbuf.st_ino = ID_DIR_RECORD(dir); /* the id of the dir record */
|
|
statbuf.st_mode = dir->d_mode; /* flags of the file */
|
|
statbuf.st_nlink = dir->d_count; /* times this file is used */
|
|
statbuf.st_uid = 0; /* user root */
|
|
statbuf.st_gid = 0; /* group operator */
|
|
statbuf.st_rdev = NO_DEV;
|
|
statbuf.st_size = dir->d_file_size; /* size of the file */
|
|
statbuf.st_blksize = v_pri.logical_block_size_l;
|
|
statbuf.st_blocks = blocks;
|
|
|
|
ltime.tm_year = dir->rec_date[0];
|
|
ltime.tm_mon = dir->rec_date[1] - 1;
|
|
ltime.tm_mday = dir->rec_date[2];
|
|
ltime.tm_hour = dir->rec_date[3];
|
|
ltime.tm_min = dir->rec_date[4];
|
|
ltime.tm_sec = dir->rec_date[5];
|
|
ltime.tm_isdst = 0;
|
|
|
|
if (dir->rec_date[6] != 0)
|
|
ltime.tm_hour += dir->rec_date[6] / 4;
|
|
|
|
time1 = mktime(<ime);
|
|
|
|
statbuf.st_atime = time1;
|
|
statbuf.st_mtime = time1;
|
|
statbuf.st_ctime = time1;
|
|
|
|
/* Copy the struct to user space. */
|
|
r = sys_safecopyto(who_e, gid, 0, (vir_bytes) &statbuf,
|
|
(phys_bytes) sizeof(statbuf));
|
|
|
|
return(r);
|
|
}
|
|
|
|
|
|
/*===========================================================================*
|
|
* fs_stat *
|
|
*===========================================================================*/
|
|
int fs_stat()
|
|
{
|
|
register int r; /* return value */
|
|
struct dir_record *dir;
|
|
r = EINVAL;
|
|
|
|
if ((dir = get_dir_record(fs_m_in.REQ_INODE_NR)) != NULL) {
|
|
r = stat_dir_record(dir, 0, fs_m_in.m_source, fs_m_in.REQ_GRANT);
|
|
release_dir_record(dir);
|
|
}
|
|
|
|
return(r);
|
|
}
|
|
|
|
|
|
/*===========================================================================*
|
|
* fs_statvfs *
|
|
*===========================================================================*/
|
|
int fs_statvfs()
|
|
{
|
|
struct statvfs st;
|
|
int r;
|
|
|
|
memset(&st, 0, sizeof(st));
|
|
|
|
st.f_bsize = v_pri.logical_block_size_l;
|
|
st.f_frsize = st.f_bsize;
|
|
st.f_iosize = st.f_bsize;
|
|
st.f_blocks = v_pri.volume_space_size_l;
|
|
st.f_namemax = NAME_MAX;
|
|
|
|
/* Copy the struct to user space. */
|
|
r = sys_safecopyto(fs_m_in.m_source, fs_m_in.REQ_GRANT, 0, (vir_bytes) &st,
|
|
(phys_bytes) sizeof(st));
|
|
|
|
return(r);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* blockstats *
|
|
*===========================================================================*/
|
|
void fs_blockstats(u64_t *blocks, u64_t *free, u64_t *used)
|
|
{
|
|
*used = *blocks = v_pri.volume_space_size_l;
|
|
*free = 0;
|
|
}
|
|
|