static int TvbRange_uncompress(lua_State* L) {
/* Obtain a uncompressed TvbRange from a TvbRange */
#define WSLUA_ARG_TvbRange_uncompress_NAME 2 /* The name to be given to the new data-source. */
TvbRange tvbr = checkTvbRange(L,1);
const gchar* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_NAME,"Uncompressed");
tvbuff_t *uncompr_tvb;
if (!(tvbr && tvbr->tvb)) return 0;
if (tvbr->tvb->expired) {
luaL_error(L,"expired tvb");
return 0;
}
#ifdef HAVE_LIBZ
uncompr_tvb = tvb_child_uncompress(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
if (uncompr_tvb) {
add_new_data_source (lua_pinfo, uncompr_tvb, name);
if (push_TvbRange(L,uncompr_tvb,0,tvb_length(uncompr_tvb))) {
WSLUA_RETURN(1); /* The TvbRange */
}
}
#else
luaL_error(L,"Missing support for ZLIB");
#endif
return 0;
}
WSLUA_METHOD TvbRange_range(lua_State* L) {
/* Creates a sub-TvbRange from this TvbRange. This is used also as the TvbRange:__call() metamethod. */
#define WSLUA_OPTARG_TvbRange_range_OFFSET 2 /* The offset (in octets) from the beginning of the TvbRange. Defaults to 0. */
#define WSLUA_OPTARG_TvbRange_range_LENGTH 3 /* The length (in octets) of the range. Defaults to until the end of the TvbRange. */
TvbRange tvbr = checkTvbRange(L,1);
int offset = luaL_optint(L,WSLUA_OPTARG_TvbRange_range_OFFSET,0);
int len;
if (!(tvbr && tvbr->tvb)) return 0;
len = luaL_optint(L,WSLUA_OPTARG_TvbRange_range_LENGTH,tvbr->len-offset);
if (tvbr->tvb->expired) {
luaL_error(L,"expired tvb");
return 0;
}
if (offset >= tvbr->len || (len + offset) > tvbr->len) {
luaL_error(L,"Range is out of bounds");
return 0;
}
if (push_TvbRange(L,tvbr->tvb->ws_tvb,tvbr->offset+offset,len)) {
WSLUA_RETURN(1); /* The TvbRange */
}
return 0;
}
static int FieldInfo_get_range(lua_State* L) {
/* The TvbRange covering this field */
FieldInfo fi = checkFieldInfo(L,1);
if (push_TvbRange (L, fi->ds_tvb, fi->start, fi->length)) {
return 1;
}
return 0;
}
/* WSLUA_ATTRIBUTE FieldInfo_range RO The `TvbRange` covering the bytes of this field in a Tvb. */
static int FieldInfo_get_range(lua_State* L) {
FieldInfo fi = checkFieldInfo(L,1);
if (push_TvbRange (L, fi->ws_fi->ds_tvb, fi->ws_fi->start, fi->ws_fi->length)) {
return 1;
}
return 0;
}
WSLUA_METHOD Tvb_range(lua_State* L) {
/* Creates a tvbr from this Tvb. This is used also as the Tvb:__call() metamethod. */
#define WSLUA_OPTARG_Tvb_range_OFFSET 2 /* The offset (in octets) from the beginning of the Tvb. Defaults to 0. */
#define WSLUA_OPTARG_Tvb_range_LENGTH 3 /* The length (in octets) of the range. Defaults to until the end of the Tvb. */
Tvb tvb = checkTvb(L,1);
int offset = luaL_optint(L,WSLUA_OPTARG_Tvb_range_OFFSET,0);
int len = luaL_optint(L,WSLUA_OPTARG_Tvb_range_LENGTH,-1);
if (push_TvbRange(L,tvb->ws_tvb,offset,len)) {
WSLUA_RETURN(1); /* The TvbRange */
}
return 0;
}
WSLUA_METHOD Tvb_range(lua_State* L) {
/* Creates a `TvbRange` from this `Tvb`. */
#define WSLUA_OPTARG_Tvb_range_OFFSET 2 /* The offset (in octets) from the beginning of the `Tvb`. Defaults to 0. */
#define WSLUA_OPTARG_Tvb_range_LENGTH 3 /* The length (in octets) of the range. Defaults to until the end of the `Tvb`. */
Tvb tvb = checkTvb(L,1);
int offset = (int) luaL_optinteger(L,WSLUA_OPTARG_Tvb_range_OFFSET,0);
int len = (int) luaL_optinteger(L,WSLUA_OPTARG_Tvb_range_LENGTH,-1);
if (push_TvbRange(L,tvb->ws_tvb,offset,len)) {
WSLUA_RETURN(1); /* The TvbRange */
}
return 0;
}
