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Merge branch 'pr/519'

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This commit is contained in:
Romain Thomas 2021-01-06 06:19:08 +01:00
commit 2b01a2d086
1 changed files with 14 additions and 0 deletions
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14
src/MachO/BinaryParser.tcc
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@ -120,6 +120,7 @@ void BinaryParser::parse_load_commands(void) {
LIEF_WARN("Only the first #{:d} will be parsed", nbcmds);
}
uint32_t low_fileoff = -1U;
for (size_t i = 0; i < nbcmds; ++i) {
if (not this->stream_->can_read<load_command>(loadcommands_offset)) {
break;
@ -158,10 +159,22 @@ void BinaryParser::parse_load_commands(void) {
for (size_t j = 0; j < segment->numberof_sections(); ++j) {
const section_t* section_header = &this->stream_->peek<section_t>(local_offset);
std::unique_ptr<Section> section{new Section{section_header}};
if (section->size_ > 0 and
section->type() != MACHO_SECTION_TYPES::S_ZEROFILL and
section->type() != MACHO_SECTION_TYPES::S_THREAD_LOCAL_ZEROFILL and
section->offset_ < low_fileoff) {
low_fileoff = section->offset_;
}
section->segment_ = segment;
segment->sections_.push_back(section.release());
local_offset += sizeof(section_t);
}
if (segment->numberof_sections() == 0 and
segment->file_offset() != 0 and
segment->file_size() != 0 and
segment->file_offset() < low_fileoff) {
low_fileoff = segment->file_offset();
}
break;
}
@ -599,6 +612,7 @@ void BinaryParser::parse_load_commands(void) {
}
loadcommands_offset += command.cmdsize;
}
this->binary_->available_command_space_ = low_fileoff - loadcommands_offset;
}