diff options
Diffstat (limited to 'src/nbt/read.c')
| -rw-r--r-- | src/nbt/read.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/src/nbt/read.c b/src/nbt/read.c deleted file mode 100644 index 38f8b14..0000000 --- a/src/nbt/read.c +++ /dev/null @@ -1,207 +0,0 @@ -#include "nbt.h" -#include "../lib.h" - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -static bool nbt_read_data(tag_t *tag, const stream_t *stream); - -static bool nbt_read_header(tag_t *tag, const stream_t *stream, bool named) { - bool ok = true; - - if (stream_read_i8(stream, &tag->type) == false) - return false; - - if (tag->type == TAG_END) - named = false; - - if (named) { - if (stream_read_u16(stream, &tag->name_len) == false) - return false; - } else { - tag->name_len = 0; - } - - if (tag->name_len < 1) { - tag->name = ""; - } else { - tag->name = xalloc(tag->name_len); - ok = stream_read(stream, tag->name, tag->name_len); - } - - if (!ok) - return false; - - return true; -} - - -static bool nbt_read_byte_array(tagdata_t *data, const stream_t *stream) { - if (stream_read_i32(stream, &data->b_arr.size) == false) - return false; - if (data->b_arr.size == 0) { - data->b_arr.data = NULL; - return true; - } - data->b_arr.data = xalloc(data->b_arr.size * sizeof(int8_t)); - for (int32_t i = 0; i < data->b_arr.size; i++) - if (stream_read_i8(stream, &data->b_arr.data[i]) == false) - return false; - return true; -} - -static bool nbt_read_int_array(tagdata_t *data, const stream_t *stream) { - if (stream_read_i32(stream, &data->i_arr.size) == false) - return false; - if (data->i_arr.size == 0) { - data->i_arr.data = NULL; - return true; - } - data->i_arr.data = xalloc(data->i_arr.size * sizeof(int32_t)); - for (int32_t i = 0; i < data->i_arr.size; i++) - if (stream_read_i32(stream, &data->i_arr.data[i]) == false) - return false; - return true; -} - -static bool nbt_read_long_array(tagdata_t *data, const stream_t *stream) { - if (stream_read_i32(stream, &data->l_arr.size) == false) - return false; - if (data->l_arr.size == 0) { - data->l_arr.data = NULL; - return true; - } - data->l_arr.data = xalloc(data->l_arr.size * sizeof(int64_t)); - for (int32_t i = 0; i < data->l_arr.size; i++) - if (stream_read_i64(stream, &data->l_arr.data[i]) == false) - return false; - return true; -} - -static bool nbt_read_string(tagdata_t *data, const stream_t *stream) { - if (stream_read_u16(stream, &data->string.size) == false) - return false; - if (data->string.size < 1) { - data->string.data = NULL; - return true; - } - data->string.data = xalloc(data->string.size); - if (stream_read(stream, data->string.data, data->string.size) == false) - return false; - return true; -} - -static bool nbt_read_list(tagdata_t *data, const stream_t *stream) { - if (stream_read_i8(stream, &data->list.type) == false) - return false; - if (stream_read_i32(stream, &data->list.size) == false) - return false; - if (data->list.size <= 0) { - data->list.tags = NULL; - return true; - } else if (data->list.type == 0) { - // tag end is not allowed to be used with non empty list - return false; - } - data->list.tags = xalloc(data->list.size * sizeof(tag_t)); - for (int32_t i = 0; i < data->list.size; i++) { - tag_t tag; - tag.type = data->list.type; - tag.name = ""; - tag.name_len = 0; - if (nbt_read_data(&tag, stream) == false) - return false; - data->list.tags[i] = tag; - } - return true; -} - -static bool nbt_read_compound(tagdata_t *data, const stream_t *stream) { - - map_t map; - map_init(&map); - - while (1) { - - tag_t tag; - - if (nbt_read_header(&tag, stream, true) == false) { - map_free(&map); - return false; - } - - if (tag.type == TAG_END) - break; - - if (tag.name_len < 1) { - map_free(&map); - return false; - } - - if (nbt_read_data(&tag, stream) == false) { - map_free(&map); - return false; - } - - map_put(&map, &tag); - } - - data->compound = map; - - return true; -} - -static bool nbt_read_data(tag_t *tag, const stream_t *stream) { - bool ok = true; - - switch (tag->type) { - case TAG_END: - // tag has no data - break; - case TAG_BYTE: - ok = stream_read_i8(stream, &tag->data.b); - break; - case TAG_SHORT: - ok = stream_read_i16(stream, &tag->data.s); - break; - case TAG_FLOAT: - case TAG_INT: - ok = stream_read_i32(stream, &tag->data.i); - break; - case TAG_DOUBLE: - case TAG_LONG: - ok = stream_read_i64(stream, &tag->data.l); - break; - case TAG_BYTE_ARRAY: - ok = nbt_read_byte_array(&tag->data, stream); - break; - case TAG_STRING: - ok = nbt_read_string(&tag->data, stream); - break; - case TAG_LIST: - ok = nbt_read_list(&tag->data, stream); - break; - case TAG_COMPOUND: - ok = nbt_read_compound(&tag->data, stream); - break; - case TAG_INT_ARRAY: - ok = nbt_read_int_array(&tag->data, stream); - break; - case TAG_LONG_ARRAY: - ok = nbt_read_long_array(&tag->data, stream); - break; - break; - }; - return ok; -} - -bool nbt_read(tag_t *tag, const stream_t *stream) { - memset(tag, 0, sizeof(tag_t)); - if (nbt_read_header(tag, stream, true) == false) - return false; - if (nbt_read_data(tag, stream) == false) - return false; - return true; -} - |