From 52f4424f2dcffa5e20e55c52a5777ce9212d05c5 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Fri, 29 Oct 2021 23:00:19 +0200 Subject: First commit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libparsepcf_get_properties.c | 46 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 libparsepcf_get_properties.c (limited to 'libparsepcf_get_properties.c') diff --git a/libparsepcf_get_properties.c b/libparsepcf_get_properties.c new file mode 100644 index 0000000..f586a5c --- /dev/null +++ b/libparsepcf_get_properties.c @@ -0,0 +1,46 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +int +libparsepcf_get_properties(const char *file, size_t size, + const struct libparsepcf_table *table, + struct libparsepcf_properties *out) +{ + size_t pos; + int msb = table->format & LIBPARSEPCF_BYTE; + + (void) size; + + if (table->size < 8) + goto ebfont; + + pos = table->offset; + + if (table->format != libparsepcf_parse_lsb_uint32__(&file[pos])) + goto ebfont; + pos += 4; + + out->property_count = (size_t)PARSE_UINT32(&file[pos], msb); + pos += 4; + + if (4 > table->size - (pos - table->offset) || + out->property_count > (table->size - (pos - table->offset) - 4) / 9) + goto ebfont; + pos += out->property_count * 9; + pos += (4 - (out->property_count & 3)) & 3; + if (pos - table->offset > table->size - 4) + goto ebfont; + out->strings_size = (size_t)PARSE_UINT32(&file[pos], msb); + pos += 4; + + out->strings = &file[pos]; + if (out->strings_size > table->size - (pos - table->offset)) + goto ebfont; + + return 0; + +ebfont: + errno = EBFONT; + return -1; +} -- cgit v1.2.3-70-g09d2