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symlink: nfs41_readlink() takes buf,len instead of nfs41_abs_path

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also changed nfs41_readlink_res.link from a buffer to a pointer to avoid the extra copy

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2010-10-12 10:00:19 -04:00
parent 77dcd5bc02
commit 374e7ad083
2 changed files with 11 additions and 12 deletions
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17
daemon/nfs41_ops.c
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@ -1349,7 +1349,9 @@ out:
int nfs41_readlink(
IN nfs41_session *session,
IN nfs41_path_fh *file,
OUT nfs41_abs_path *link_out)
IN uint32_t max_len,
OUT char *link_out,
OUT uint32_t *len_out)
{
int status;
nfs41_compound compound;
@ -1373,7 +1375,8 @@ int nfs41_readlink(
putfh_args.in_recovery = 0;
compound_add_op(&compound, OP_READLINK, NULL, &readlink_res);
readlink_res.link_len = NFS4_OPAQUE_LIMIT;
readlink_res.link_len = max_len - 1;
readlink_res.link = link_out;
status = compound_encode_send_decode(session, &compound, 0, 0);
if (status)
@ -1382,14 +1385,8 @@ int nfs41_readlink(
if (compound_error(status = compound.res.status))
goto out;
if (readlink_res.link_len >= NFS41_MAX_PATH_LEN) {
status = NFS4ERR_REP_TOO_BIG;
goto out;
}
AcquireSRWLockExclusive(&link_out->lock);
link_out->len = (unsigned short)readlink_res.link_len;
memcpy(link_out->path, readlink_res.link, readlink_res.link_len);
ReleaseSRWLockExclusive(&link_out->lock);
link_out[readlink_res.link_len] = '\0';
*len_out = readlink_res.link_len;
out:
return status;
}