bool CNFSDirectory::ResolveSymlink( const CStdString &dirName, struct nfsdirent *dirent, CURL &resolvedUrl)
{
CSingleLock lock(gNfsConnection);
int ret = 0;
bool retVal = true;
CStdString fullpath = dirName;
char resolvedLink[MAX_PATH];
URIUtils::AddSlashAtEnd(fullpath);
fullpath.append(dirent->name);
resolvedUrl.Reset();
resolvedUrl.SetPort(2049);
resolvedUrl.SetProtocol("nfs");
resolvedUrl.SetHostName(gNfsConnection.GetConnectedIp());
ret = gNfsConnection.GetImpl()->nfs_readlink(gNfsConnection.GetNfsContext(), fullpath.c_str(), resolvedLink, MAX_PATH);
if(ret == 0)
{
struct stat tmpBuffer = {0};
fullpath = dirName;
URIUtils::AddSlashAtEnd(fullpath);
fullpath.append(resolvedLink);
//special case - if link target is absolute it could be even another export
//intervolume symlinks baby ...
if(resolvedLink[0] == '/')
{
//use the special stat function for using an extra context
//because we are inside of a dir traversation
//and just can't change the global nfs context here
//without destroying something...
fullpath = resolvedLink;
resolvedUrl.SetFileName(fullpath);
ret = gNfsConnection.stat(resolvedUrl, &tmpBuffer);
}
else
{
ret = gNfsConnection.GetImpl()->nfs_stat(gNfsConnection.GetNfsContext(), fullpath.c_str(), &tmpBuffer);
resolvedUrl.SetFileName(gNfsConnection.GetConnectedExport() + fullpath);
}
if (ret != 0)
{
CLog::Log(LOGERROR, "NFS: Failed to stat(%s) on link resolve %s\n", fullpath.c_str(), gNfsConnection.GetImpl()->nfs_get_error(gNfsConnection.GetNfsContext()));
retVal = false;;
}
else
{
dirent->inode = tmpBuffer.st_ino;
dirent->mode = tmpBuffer.st_mode;
dirent->size = tmpBuffer.st_size;
dirent->atime.tv_sec = tmpBuffer.st_atime;
dirent->mtime.tv_sec = tmpBuffer.st_mtime;
dirent->ctime.tv_sec = tmpBuffer.st_ctime;
//map stat mode to nf3type
if(S_ISBLK(tmpBuffer.st_mode)){ dirent->type = NF3BLK; }
else if(S_ISCHR(tmpBuffer.st_mode)){ dirent->type = NF3CHR; }
else if(S_ISDIR(tmpBuffer.st_mode)){ dirent->type = NF3DIR; }
else if(S_ISFIFO(tmpBuffer.st_mode)){ dirent->type = NF3FIFO; }
else if(S_ISREG(tmpBuffer.st_mode)){ dirent->type = NF3REG; }
else if(S_ISLNK(tmpBuffer.st_mode)){ dirent->type = NF3LNK; }
else if(S_ISSOCK(tmpBuffer.st_mode)){ dirent->type = NF3SOCK; }
}
}
else
{
CLog::Log(LOGERROR, "Failed to readlink(%s) %s\n", fullpath.c_str(), gNfsConnection.GetImpl()->nfs_get_error(gNfsConnection.GetNfsContext()));
retVal = false;
}
return retVal;
}
