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authorValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
committerValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
commit1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch)
tree7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/object/src/archive.rs
parent5ecd8cf2cba827454317368b68571df0d13d7842 (diff)
downloadfparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz
fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/object/src/archive.rs')
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+//! 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,);