From 42d1c82a0bfa615b832f5ecc2652edc290bf6e9c Mon Sep 17 00:00:00 2001 From: Freya Murphy Date: Fri, 15 Dec 2023 23:02:45 -0500 Subject: add json support and other things --- src/tag_read.c | 202 --------------------------------------------------------- 1 file changed, 202 deletions(-) delete mode 100644 src/tag_read.c (limited to 'src/tag_read.c') diff --git a/src/tag_read.c b/src/tag_read.c deleted file mode 100644 index 5f43e7c..0000000 --- a/src/tag_read.c +++ /dev/null @@ -1,202 +0,0 @@ -#include "tag.h" -#include "lib.h" -#include -#include -#include - -bool tag_read_header(tag_t *tag, 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 tag_read_byte_array(tagdata_t *data, 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 tag_read_int_array(tagdata_t *data, 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 tag_read_long_array(tagdata_t *data, 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 tag_read_string(tagdata_t *data, 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 tag_read_list(tagdata_t *data, 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 (tag_read_data(&tag, stream) == false) - return false; - data->list.tags[i] = tag; - } - return true; -} - -static bool tag_read_compound(tagdata_t *data, stream_t *stream) { - int32_t size = 0; - int32_t capacity = 8; - tag_t *tags = xalloc(capacity * sizeof(tag_t)); - - while (1) { - - tag_t tag; - - if (tag_read_header(&tag, stream, true) == false) - return false; - - if (tag.type == TAG_END) - break; - - if (tag_read_data(&tag, stream) == false) - return false; - - if (size == capacity) { - capacity *= 2; - tags = xrealloc(tags, capacity * sizeof(tag_t)); - } - - tags[size++] = tag; - } - - data->compound.size = size; - data->compound.tags = xalloc(size * sizeof(tag_t)); - memcpy(data->compound.tags, tags, size * sizeof(tag_t)); - free(tags); - - return true; -} -bool tag_read_data(tag_t *tag, 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 = tag_read_byte_array(&tag->data, stream); - break; - case TAG_STRING: - ok = tag_read_string(&tag->data, stream); - break; - case TAG_LIST: - ok = tag_read_list(&tag->data, stream); - break; - case TAG_COMPOUND: - ok = tag_read_compound(&tag->data, stream); - break; - case TAG_INT_ARRAY: - ok = tag_read_int_array(&tag->data, stream); - break; - case TAG_LONG_ARRAY: - ok = tag_read_long_array(&tag->data, stream); - break; - break; - }; - return ok; -} - -bool tag_read(tag_t *tag, stream_t *stream, bool named) { - memset(tag, 0, sizeof(tag_t)); - if (tag_read_header(tag, stream, named) == false) - return false; - if (tag_read_data(tag, stream) == false) - return false; - return true; -} - -- cgit v1.2.3-freya