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changing silly rename scheme

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instead of appending a fh value when creating a silly rename name,
we'll append a timestamp. using fh value was problematic because
it was creating a filename longer than 64char long which is
currently out max_filename_size.
This commit is contained in:
Olga Kornievskaia 2012-03-27 14:46:36 -04:00 • committed by unknown
parent 61998b5968
commit 4d18cf9ce7
4 changed files with 16 additions and 17 deletions
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28
daemon/util.c
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@ -347,35 +347,35 @@ void path_fh_copy(
fh_copy(&dst->fh, &src->fh);
}
/* DWORD MAX_DWORD = 4294967295 -- max string for the timestamp */
int create_silly_rename(
IN nfs41_abs_path *path,
IN const nfs41_fh *fh,
OUT nfs41_component *silly)
{
const char *end = path->path + NFS41_MAX_PATH_LEN;
const unsigned short extra_len = 2 + 2*(unsigned short)fh->len;
char name[NFS41_MAX_COMPONENT_LEN+1];
char *tmp;
uint32_t i;
char name[NFS41_MAX_COMPONENT_LEN+1], *tmp, stime[13];
int status = NO_ERROR;
const DWORD ntime = GetTickCount();
if (path->len + extra_len >= NFS41_MAX_PATH_LEN) {
StringCchPrintf(stime, 13, "%u", ntime);
if (path->len + 13 >= NFS41_MAX_PATH_LEN) {
status = ERROR_BUFFER_OVERFLOW;
goto out;
}
last_component(path->path, path->path + path->len, silly);
if (silly->len + 13 > NFS41_MAX_COMPONENT_LEN) {
status = ERROR_BUFFER_OVERFLOW;
goto out;
}
StringCchCopyNA(name, NFS41_MAX_COMPONENT_LEN+1, silly->name, silly->len);
tmp = (char*)silly->name;
StringCchPrintf(tmp, end - tmp, ".%s.", name);
tmp += silly->len + 2;
StringCchPrintf(tmp, end - tmp, ".%s.%s", name, stime);
for (i = 0; i < fh->len; i++, tmp += 2)
StringCchPrintf(tmp, end - tmp, "%02x", fh->fh[i]);
path->len = path->len + extra_len;
silly->len = silly->len + extra_len;
path->len = (unsigned short)strlen(path->path);
silly->len = (unsigned short)strlen(silly->name);
out:
return status;
}
}