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/* See LICENSE file for copyright and license details. */
#include "common.h"
int
libparsesfnt_parse_xref(
const char *data, size_t size,
struct libparsesfnt_xref *infop,
const struct libparsesfnt_tabdir_entry *tag)
{
return PARSE(LIBPARSESFNT_XREF__, tag->offset, 0, 0, 0, 1, tag);
}
int
libparsesfnt_parse_xref_entries(
const char *data, size_t size,
struct libparsesfnt_xref_entry *infop,
const struct libparsesfnt_tabdir_entry *tag,
size_t first, size_t count)
{
return PARSE(LIBPARSESFNT_XREF_ENTRY__, tag->offset, 16, 0, first, count, tag);
}
int
libparsesfnt_get_xref_offset(
size_t size,
size_t *offsetp,
const struct libparsesfnt_tabdir_entry *tag, const struct libparsesfnt_xref *xref,
const struct libparsesfnt_xref_entry *entry)
{
size_t offset = (size_t)tag->offset;
if ((size_t)xref->string_offset > size - offset)
goto ebfont;
offset += (size_t)xref->string_offset;
if ((size_t)entry->string_offset > size - offset)
goto ebfont;
offset += (size_t)entry->string_offset;
if ((size_t)entry->string_length > size - offset)
goto ebfont;
*offsetp = offset;
return 0;
ebfont:
errno = EBFONT;
return -1;
}
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