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/* Part of libhgfs - (c) 2009, D.C. van Moolenbroek */
#include "inc.h"
#include <sys/stat.h>
/*===========================================================================*
* attr_get *
*===========================================================================*/
void attr_get(struct sffs_attr *attr)
{
/* Get attribute information from the RPC buffer, storing the requested parts
* in the given attr structure.
*/
mode_t mode;
u32_t size_lo, size_hi;
mode = (RPC_NEXT32) ? S_IFDIR : S_IFREG;
size_lo = RPC_NEXT32;
size_hi = RPC_NEXT32;
if (attr->a_mask & SFFS_ATTR_SIZE)
attr->a_size = make64(size_lo, size_hi);
time_get((attr->a_mask & SFFS_ATTR_CRTIME) ? &attr->a_crtime : NULL);
time_get((attr->a_mask & SFFS_ATTR_ATIME) ? &attr->a_atime : NULL);
time_get((attr->a_mask & SFFS_ATTR_MTIME) ? &attr->a_mtime : NULL);
time_get((attr->a_mask & SFFS_ATTR_CTIME) ? &attr->a_ctime : NULL);
mode |= HGFS_PERM_TO_MODE(RPC_NEXT8);
if (attr->a_mask & SFFS_ATTR_MODE) attr->a_mode = mode;
}
/*===========================================================================*
* hgfs_getattr *
*===========================================================================*/
int hgfs_getattr(const char *path, struct sffs_attr *attr)
{
/* Get selected attributes of a file by path name.
*/
int r;
RPC_REQUEST(HGFS_REQ_GETATTR);
path_put(path);
if ((r = rpc_query()) != OK)
return r;
attr_get(attr);
return OK;
}
/*===========================================================================*
* hgfs_setattr *
*===========================================================================*/
int hgfs_setattr(const char *path, struct sffs_attr *attr)
{
/* Set selected attributes of a file by path name.
*/
u8_t mask;
RPC_REQUEST(HGFS_REQ_SETATTR);
/* This library implements the HGFS v1 protocol, which is largely
* path-oriented. This is the only method to set the file size, and thus,
* truncating a deleted file is not possible. This has been fixed in later
* HGFS protocol version (v2/v3).
*/
mask = 0;
if (attr->a_mask & SFFS_ATTR_MODE) mask |= HGFS_ATTR_MODE;
if (attr->a_mask & SFFS_ATTR_SIZE) mask |= HGFS_ATTR_SIZE;
if (attr->a_mask & SFFS_ATTR_CRTIME) mask |= HGFS_ATTR_CRTIME;
if (attr->a_mask & SFFS_ATTR_ATIME)
mask |= HGFS_ATTR_ATIME | HGFS_ATTR_ATIME_SET;
if (attr->a_mask & SFFS_ATTR_MTIME)
mask |= HGFS_ATTR_MTIME | HGFS_ATTR_MTIME_SET;
if (attr->a_mask & SFFS_ATTR_CTIME) mask |= HGFS_ATTR_CTIME;
RPC_NEXT8 = mask;
RPC_NEXT32 = !!(S_ISDIR(attr->a_mode));
RPC_NEXT32 = ex64lo(attr->a_size);
RPC_NEXT32 = ex64hi(attr->a_size);
time_put((attr->a_mask & HGFS_ATTR_CRTIME) ? &attr->a_crtime : NULL);
time_put((attr->a_mask & HGFS_ATTR_ATIME) ? &attr->a_atime : NULL);
time_put((attr->a_mask & HGFS_ATTR_MTIME) ? &attr->a_mtime : NULL);
time_put((attr->a_mask & HGFS_ATTR_CTIME) ? &attr->a_ctime : NULL);
RPC_NEXT8 = HGFS_MODE_TO_PERM(attr->a_mode);
path_put(path);
return rpc_query();
}
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