Initial project import

tools/v/vlib/archive/tar/tar.v

@@ -0,0 +1,43 @@
+module tar
+
+// ustart header block octets
+// Field    | Offset | Length
+// --------------------------
+// name     |   0    | 100
+// mode     | 100    |   8
+// uid      | 108    |   8
+// gid      | 116    |   8
+// size     | 124    |  12
+// mtime    | 136    |  12
+// chksum   | 148    |   8
+// typeflag | 156    |   1
+// linkname | 157    | 100
+// magic    | 257    |   6
+// version  | 263    |   2
+// uname    | 265    |  32
+// gname    | 297    |  32
+// devmajor | 329    |   8
+// devminor | 337    |   8
+// prefix   | 345    | 155
+
+pub enum BlockHeader as u8 {
+	file      = u8(`0`) // 0x30
+	hard_link = u8(`1`) // 0x31
+	sym_link  = u8(`2`) // 0x32
+	char_dev  = u8(`3`) // 0x33
+	block_dev = u8(`4`) // 0x34
+	dir       = u8(`5`) // 0x35
+	fifo      = u8(`6`) // 0x36
+	long_name = u8(`L`) // 0x4c = 76 dec
+	global    = u8(`g`) // 0x67 pax
+}
+
+pub enum BlockSpecial {
+	no        // for headers `0`,`5` or data blocks
+	blank_1   // first blank block: continue
+	blank_2   // second blank block: end of archiv
+	ignore    // for headers `1`, `2`, `3`, `4`, `6`
+	long_name // for header `L`
+	global    // for header `g`
+	unknown   // for not header defined
+}