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[Object][Archive] Fix name handling with bsd style long names.

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llvm-svn: 172026
This commit is contained in:
Michael J. Spencer 2013-01-10 01:05:34 +00:00
parent 02a3c9b959
commit 8c71e9265a
1 changed files with 14 additions and 8 deletions
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22
llvm/lib/Object/Archive.cpp
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@ -49,7 +49,8 @@ struct ArchiveMemberHeader {
uint64_t getSize() const {
uint64_t ret;
StringRef(Size, sizeof(Size)).rtrim(" ").getAsInteger(10, ret);
if (StringRef(Size, sizeof(Size)).rtrim(" ").getAsInteger(10, ret))
llvm_unreachable("Size is not an integer.");
return ret;
}
};
@ -111,7 +112,8 @@ error_code Archive::Child::getName(StringRef &Result) const {
// It's a long name.
// Get the offset.
std::size_t offset;
name.substr(1).getAsInteger(10, offset);
if (name.substr(1).rtrim(" ").getAsInteger(10, offset))
llvm_unreachable("Long name offset is not an integer");
const char *addr = Parent->StringTable->Data.begin()
+ sizeof(ArchiveMemberHeader)
+ offset;
@ -134,8 +136,9 @@ error_code Archive::Child::getName(StringRef &Result) const {
return object_error::success;
} else if (name.startswith("#1/")) {
uint64_t name_size;
name.substr(3).getAsInteger(10, name_size);
Result = Data.substr(0, name_size);
if (name.substr(3).rtrim(" ").getAsInteger(10, name_size))
llvm_unreachable("Long name length is not an ingeter");
Result = Data.substr(sizeof(ArchiveMemberHeader), name_size);
return object_error::success;
}
// It's a simple name.
@ -152,21 +155,24 @@ uint64_t Archive::Child::getSize() const {
StringRef name = ToHeader(Data.data())->getName();
if (name.startswith("#1/")) {
uint64_t name_size;
name.substr(3).getAsInteger(10, name_size);
if (name.substr(3).rtrim(" ").getAsInteger(10, name_size))
llvm_unreachable("Long name length is not an integer");
size -= name_size;
}
return size;
}
MemoryBuffer *Archive::Child::getBuffer() const {
StringRef name;
if (getName(name)) return NULL;
StringRef name = ToHeader(Data.data())->getName();
int size = sizeof(ArchiveMemberHeader);
if (name.startswith("#1/")) {
uint64_t name_size;
name.substr(3).getAsInteger(10, name_size);
if (name.substr(3).rtrim(" ").getAsInteger(10, name_size))
llvm_unreachable("Long name length is not an integer");
size += name_size;
}
if (getName(name))
return 0;
return MemoryBuffer::getMemBuffer(Data.substr(size, getSize()),
name,
false);