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Diffstat (limited to 'vendor/object/src/archive.rs')
-rw-r--r-- | vendor/object/src/archive.rs | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/vendor/object/src/archive.rs b/vendor/object/src/archive.rs new file mode 100644 index 0000000..6271d07 --- /dev/null +++ b/vendor/object/src/archive.rs @@ -0,0 +1,91 @@ +//! Archive definitions. +//! +//! These definitions are independent of read/write support, although we do implement +//! some traits useful for those. + +use crate::pod::Pod; + +/// File identification bytes stored at the beginning of the file. +pub const MAGIC: [u8; 8] = *b"!<arch>\n"; + +/// File identification bytes at the beginning of AIX big archive. +pub const AIX_BIG_MAGIC: [u8; 8] = *b"<bigaf>\n"; + +/// File identification bytes stored at the beginning of a thin archive. +/// +/// A thin archive only contains a symbol table and file names. +pub const THIN_MAGIC: [u8; 8] = *b"!<thin>\n"; + +/// The terminator for each archive member header. +pub const TERMINATOR: [u8; 2] = *b"`\n"; + +/// The header at the start of an archive member. +#[derive(Debug, Clone, Copy)] +#[repr(C)] +pub struct Header { + /// The file name. + pub name: [u8; 16], + /// File modification timestamp in decimal. + pub date: [u8; 12], + /// User ID in decimal. + pub uid: [u8; 6], + /// Group ID in decimal. + pub gid: [u8; 6], + /// File mode in octal. + pub mode: [u8; 8], + /// File size in decimal. + pub size: [u8; 10], + /// Must be equal to `TERMINATOR`. + pub terminator: [u8; 2], +} + +/// The header at the start of an AIX big archive member, without name. +#[derive(Debug, Clone, Copy)] +#[repr(C)] +pub struct AixHeader { + /// File member size in decimal. + pub size: [u8; 20], + /// Next member offset in decimal. + pub nxtmem: [u8; 20], + /// Previous member offset in decimal. + pub prvmem: [u8; 20], + /// File member date in decimal. + pub date: [u8; 12], + /// File member user id in decimal. + pub uid: [u8; 12], + /// File member group id in decimal. + pub gid: [u8; 12], + /// File member mode in octal. + pub mode: [u8; 12], + /// File member name length in decimal. + pub namlen: [u8; 4], +} + +/// The AIX big archive's fixed length header at file beginning. +#[derive(Debug, Clone, Copy)] +#[repr(C)] +pub struct AixFileHeader { + /// Archive magic string. + pub magic: [u8; 8], + /// Offset of member table. + pub memoff: [u8; 20], + /// Offset of global symbol table. + pub gstoff: [u8; 20], + /// Offset of global symbol table for 64-bit objects. + pub gst64off: [u8; 20], + /// Offset of first member. + pub fstmoff: [u8; 20], + /// Offset of last member. + pub lstmoff: [u8; 20], + /// Offset of first member on free list. + pub freeoff: [u8; 20], +} + +/// Offset of a member in an AIX big archive. +/// +/// This is used in the member index. +#[derive(Debug, Clone, Copy)] +#[repr(C)] +pub struct AixMemberOffset(pub [u8; 20]); + +unsafe_impl_pod!(Header, AixHeader, AixFileHeader, AixMemberOffset,); |