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_property_subtable.c | 47 +++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 libparsepcf_get_property_subtable.c (limited to 'libparsepcf_get_property_subtable.c') diff --git a/libparsepcf_get_property_subtable.c b/libparsepcf_get_property_subtable.c new file mode 100644 index 0000000..d19498c --- /dev/null +++ b/libparsepcf_get_property_subtable.c @@ -0,0 +1,47 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +int +libparsepcf_get_property_subtable(const char *file, size_t size, + const struct libparsepcf_table *table, + const struct libparsepcf_properties *meta, + struct libparsepcf_property_subtable *props, + size_t first, size_t count) +{ + int msb = table->format & LIBPARSEPCF_BYTE; + size_t pos = table->offset + 8 + first * 9; + size_t i, off, maxlen; + + (void) size; + + for (i = 0; i < count; i++, pos += 9) { + off = (size_t)PARSE_UINT32(&file[pos + 0], msb); + if (off > meta->strings_size) + goto ebfont; + maxlen = meta->strings_size - off; + props[i].name = &meta->strings[off]; + if (!memchr(props[i].name, 0, maxlen)) + goto ebfont; + + props[i].is_string_property = !!file[pos + 4]; + + if (props[i].is_string_property) { + off = (size_t)PARSE_UINT32(&file[pos + 5], msb); + if (off > meta->strings_size) + goto ebfont; + maxlen = meta->strings_size - off; + props[i].value.string_value = &meta->strings[off]; + if (!memchr(props[i].value.string_value, 0, maxlen)) + goto ebfont; + } else { + props[i].value.signed_value = PARSE_INT32(&file[pos + 5], msb); + } + } + + return 0; + +ebfont: + errno = EBFONT; + return -1; +} -- cgit v1.2.3-70-g09d2