minix/lib/libpuffs/stadir.c
Ben Gras 2bfeeed885 drop segment from safecopy invocations
. all invocations were S or D, so can safely be dropped
	  to prepare for the segmentless world
	. still assign D to the SCP_SEG field in the message
	  to make previous kernels usable
2012-06-16 16:22:51 +00:00

121 lines
3.2 KiB
C

/* Created (MFS based):
* February 2010 (Evgeniy Ivanov)
*/
#include "fs.h"
#include <sys/stat.h>
#include <sys/statfs.h>
#include <sys/statvfs.h>
#include <minix/vfsif.h>
#include "puffs.h"
#include "puffs_priv.h"
/*===========================================================================*
* fs_fstatfs *
*===========================================================================*/
int fs_fstatfs()
{
int r;
struct statvfs st_vfs;
struct statfs st;
if (global_pu->pu_ops.puffs_fs_statvfs(global_pu, &st_vfs) != 0) {
lpuffs_debug("statfs failed\n");
return(EINVAL);
}
st.f_bsize = st_vfs.f_bsize;
/* Copy the struct to user space. */
r = sys_safecopyto(fs_m_in.m_source, (cp_grant_id_t) fs_m_in.REQ_GRANT,
(vir_bytes) 0, (vir_bytes) &st, (size_t) sizeof(st));
return(r);
}
/*===========================================================================*
* fs_stat *
*===========================================================================*/
int fs_stat()
{
register int r; /* return value */
register struct puffs_node *pn; /* target pnode */
struct vattr va;
struct stat statbuf;
mode_t mo;
int s;
PUFFS_MAKECRED(pcr, &global_kcred);
if (global_pu->pu_ops.puffs_node_getattr == NULL) {
lpuffs_debug("fs_stat: puffs_node_getattr is missing\n");
return(EINVAL);
}
if ((pn = puffs_pn_nodewalk(global_pu, 0, &fs_m_in.REQ_INODE_NR)) == NULL) {
lpuffs_debug("walk failed...\n");
return(EINVAL);
}
if (global_pu->pu_ops.puffs_node_getattr(global_pu, pn, &va, pcr) != 0) {
if (errno) {
if (errno > 0) errno = -errno;
return(errno);
}
return(EINVAL);
}
/* Fill in the statbuf struct. */
mo = va.va_mode & I_TYPE;
/* true iff special */
s = (mo == I_CHAR_SPECIAL || mo == I_BLOCK_SPECIAL);
statbuf.st_dev = fs_dev;
statbuf.st_ino = va.va_fileid;
statbuf.st_mode = va.va_mode;
statbuf.st_nlink = va.va_nlink;
statbuf.st_uid = va.va_uid;
statbuf.st_gid = va.va_gid;
statbuf.st_rdev = (s ? va.va_rdev : NO_DEV);
statbuf.st_size = va.va_size;
statbuf.st_atime = va.va_atime.tv_sec;
statbuf.st_mtime = va.va_mtime.tv_sec;
statbuf.st_ctime = va.va_ctime.tv_sec;
/* Copy the struct to user space. */
r = sys_safecopyto(fs_m_in.m_source, (cp_grant_id_t) fs_m_in.REQ_GRANT,
(vir_bytes) 0, (vir_bytes) &statbuf,
(size_t) sizeof(statbuf));
return(r);
}
/*===========================================================================*
* fs_statvfs *
*===========================================================================*/
int fs_statvfs()
{
int r;
struct statvfs st;
if (global_pu->pu_ops.puffs_fs_statvfs(global_pu, &st) != 0) {
lpuffs_debug("statvfs failed\n");
return(EINVAL);
}
/* XXX libpuffs doesn't truncate filenames and returns ENAMETOOLONG,
* though some servers would like to behave differently.
* See subtest 2.18-19 of test23 and test/common.c:does_fs_truncate().
*/
st.f_flag |= ST_NOTRUNC;
/* 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);
}