diff options
Diffstat (limited to 'Build/source/texk/web2c/mfluadir/otfcc/lib/table/meta/read.c')
-rw-r--r-- | Build/source/texk/web2c/mfluadir/otfcc/lib/table/meta/read.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/mfluadir/otfcc/lib/table/meta/read.c b/Build/source/texk/web2c/mfluadir/otfcc/lib/table/meta/read.c new file mode 100644 index 00000000000..837ac0bf725 --- /dev/null +++ b/Build/source/texk/web2c/mfluadir/otfcc/lib/table/meta/read.c @@ -0,0 +1,36 @@ +#include "../meta.h" + +#include "support/util.h" + +table_meta *otfcc_readMeta(const otfcc_Packet packet, const otfcc_Options *options) { + table_meta *meta = NULL; + FOR_TABLE(OTFCC_CHR('m','e','t','a'), table) { + if (table.length < 16) goto FAIL; + uint32_t version = read_32u(table.data + 0); + uint32_t flags = read_32u(table.data + 4); + uint32_t dataMapsCount = read_32u(table.data + 12); + if (table.length < 16 + 12 * dataMapsCount) goto FAIL; + + meta = table_iMeta.create(); + meta->version = version; + meta->flags = flags; + + for (uint32_t j = 0; j < dataMapsCount; j++) { + uint32_t tag = read_32u(table.data + 16 + 12 * j + 0); + uint32_t offset = read_32u(table.data + 16 + 12 * j + 4); + uint32_t length = read_32u(table.data + 16 + 12 * j + 8); + if (table.length < offset + length) continue; + + meta_iEntries.push( + &meta->entries, + (meta_Entry){.tag = tag, .data = sdsnewlen((char *)(table.data + offset), length)}); + } + return meta; + + FAIL: + logWarning("Table 'meta' corrupted.\n"); + table_iMeta.free(meta); + meta = NULL; + } + return meta; +} |