diff options
Diffstat (limited to 'source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp')
| -rw-r--r-- | source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp b/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp index 32574e3ef2f0..0263c23ce307 100644 --- a/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp +++ b/source/Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.cpp @@ -74,6 +74,25 @@ ObjectContainerBSDArchive::Object::Extract (const DataExtractor& data, lldb::off size_t ar_name_len = 0; std::string str; char *err; + + + // File header + // + // The common format is as follows. + // + // Offset Length Name Format + // 0 16 File name ASCII right padded with spaces (no spaces allowed in file name) + // 16 12 File mod Decimal as cstring right padded with spaces + // 28 6 Owner ID Decimal as cstring right padded with spaces + // 34 6 Group ID Decimal as cstring right padded with spaces + // 40 8 File mode Octal as cstring right padded with spaces + // 48 10 File byte size Decimal as cstring right padded with spaces + // 58 2 File magic 0x60 0x0A + + // Make sure there is enough data for the file header and bail if not + if (!data.ValidOffsetForDataOfSize(offset, 60)) + return LLDB_INVALID_OFFSET; + str.assign ((const char *)data.GetData(&offset, 16), 16); if (str.find("#1/") == 0) { @@ -110,7 +129,11 @@ ObjectContainerBSDArchive::Object::Extract (const DataExtractor& data, lldb::off { if (ar_name_len > 0) { - str.assign ((const char *)data.GetData(&offset, ar_name_len), ar_name_len); + const void *ar_name_ptr = data.GetData(&offset, ar_name_len); + // Make sure there was enough data for the string value and bail if not + if (ar_name_ptr == NULL) + return LLDB_INVALID_OFFSET; + str.assign ((const char *)ar_name_ptr, ar_name_len); ar_name.SetCString (str.c_str()); } ar_file_offset = offset; @@ -224,7 +247,7 @@ ObjectContainerBSDArchive::Archive::FindCachedArchive (const FileSpec &file, con // whose modification time doesn't match. It doesn't make sense // for us to continue to use this BSD archive since we cache only // the object info which consists of file time info and also the - // file offset and file size of any contianed objects. Since + // file offset and file size of any contained objects. Since // this information is now out of date, we won't get the correct // information if we go and extract the file data, so we should // remove the old and outdated entry. @@ -335,7 +358,9 @@ ObjectContainerBSDArchive::CreateInstance Timer scoped_timer (__PRETTY_FUNCTION__, "ObjectContainerBSDArchive::CreateInstance (module = %s, file = %p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")", module_sp->GetFileSpec().GetPath().c_str(), - file, (uint64_t) file_offset, (uint64_t) length); + static_cast<const void*>(file), + static_cast<uint64_t>(file_offset), + static_cast<uint64_t>(length)); // Map the entire .a file to be sure that we don't lose any data if the file // gets updated by a new build while this .a file is being used for debugging @@ -457,11 +482,11 @@ ObjectContainerBSDArchive::ParseHeader () void ObjectContainerBSDArchive::Dump (Stream *s) const { - s->Printf("%p: ", this); + s->Printf("%p: ", static_cast<const void*>(this)); s->Indent(); const size_t num_archs = GetNumArchitectures(); const size_t num_objects = GetNumObjects(); - s->Printf("ObjectContainerBSDArchive, num_archs = %zu, num_objects = %zu", num_archs, num_objects); + s->Printf("ObjectContainerBSDArchive, num_archs = %" PRIu64 ", num_objects = %" PRIu64 "", (uint64_t)num_archs, (uint64_t)num_objects); uint32_t i; ArchSpec arch; s->IndentMore(); |