common.go raw

   1  /* 
   2  Copyright (c) 2013 Blake Smith <blakesmith0@gmail.com>
   3  
   4  Permission is hereby granted, free of charge, to any person obtaining a copy
   5  of this software and associated documentation files (the "Software"), to deal
   6  in the Software without restriction, including without limitation the rights
   7  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  copies of the Software, and to permit persons to whom the Software is
   9  furnished to do so, subject to the following conditions:
  10  
  11  The above copyright notice and this permission notice shall be included in
  12  all copies or substantial portions of the Software.
  13  
  14  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20  THE SOFTWARE.
  21  */
  22  package ar
  23  
  24  import (
  25  	"time"
  26  )
  27  
  28  const (
  29  	HEADER_BYTE_SIZE = 60
  30  	GLOBAL_HEADER = "!<arch>\n"
  31  )
  32  
  33  type Header struct {
  34  	Name string
  35  	ModTime time.Time
  36  	Uid int
  37  	Gid int
  38  	Mode int64
  39  	Size int64
  40  }
  41  
  42  type slicer []byte
  43  
  44  func (sp *slicer) next(n int) (b []byte) {
  45  	s := *sp
  46  	b, *sp = s[0:n], s[n:]
  47  	return
  48  }
  49