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