int appledouble_truncate(struct afp_volume * volume, const char * path, int offset)
{
char * newpath;
int resource = extra_translate(volume, path, &newpath);
struct afp_file_info fp;
int ret;
int dirid;
char basename[AFP_MAX_PATH];
switch(resource) {
case AFP_META_RESOURCE:
get_dirid(volume,newpath,basename,&dirid);
ret=afp_openfork(volume,1,dirid,O_WRONLY,
basename,&fp);
ret=ll_zero_file(volume,fp.forkid,0);
if (ret<0) {
afp_closefork(volume,fp.forkid);
remove_opened_fork(volume,fp);
free(newpath);
return ret;
}
afp_closefork(volume,fp.forkid);
remove_opened_fork(volume,fp);
return 1;
case AFP_META_APPLEDOUBLE:
free(newpath);
return -EISDIR;
case AFP_META_FINDERINFO:
free(newpath);
return 1;
case AFP_META_COMMENT:
free(newpath);
return 1;
case AFP_META_SERVER_ICON:
free(newpath);
return -EPERM;
}
return 0;
}
int ml_truncate(struct afp_volume * vol, const char * path, off_t offset)
{
int ret=0;
char converted_path[AFP_MAX_PATH];
struct afp_file_info *fp;
int flags;
if (convert_path_to_afp(vol->server->path_encoding,
converted_path,(char *) path,AFP_MAX_PATH))
return -EINVAL;
/* The approach here is to get the forkid by calling ml_open()
(and not afp_openfork). Note the fake afp_file_info used
just to grab this forkid. */
if (invalid_filename(vol->server,converted_path))
return -ENAMETOOLONG;
if (volume_is_readonly(vol))
return -EACCES;
ret=appledouble_truncate(vol,path,offset);
if (ret<0) return ret;
if (ret==1) return 0;
/* Here, we're going to use the untranslated path since it is
translated through the ml_open() */
flags=O_WRONLY;
if ((ml_open(vol,path,flags,&fp))) {
return ret;
};
if ((ret=ll_zero_file(vol,fp->forkid,0)))
goto out;
afp_closefork(vol,fp->forkid);
remove_opened_fork(vol, fp);
free(fp);
out:
return -ret;
}
