Index for Section 4

Alphabetical listing for C

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cpio(4)
NAME
  cpio - Format of cpio archive

DESCRIPTION
  The header structure, when the -c option of cpio(1) is not used, is:

       struct {
		  short	  h_magic,
			  h_dev;
		  ushort  h_ino,
			  h_mode,
			  h_uid,
			  h_gid;
		  short	  h_nlink,
			  h_rdev
			  h_mtime[2],
			  h_namesize,
			  h_filesize[2]'
		  char	  h_name[h_namesize rounded to word];
       } Hdr;

  When the -c option is used, the header information is described by:

       sscanf(Chdr,"%6o%6o%6o%6o%6o%6o%6o%6o%11lo%6o%11lo%s",
	 &Hdr.h_magic, &Hdr.h_dev, &Hdr.h_ino, &Hdr.h_mode,
	 &Hdr.h_uid, &Hdr.h_gid, &Hdr.h_nlink, &Hdr.h_rdev,
	 &Longtime, &Hdr.h_namesize,&Longfile,Hdr.h_name);

  The Longtime and Longfile  are equivalent to Hdr.h_mtime and
  Hdr.h_filesize, respectively.	 The contents of each file are recorded in an
  element of the array of varying length structures, archive, together with
  other items describing the file.  Every instance of h_magic contains the
  constant 070707 (octal).  The items h_dev  through h_mtime have meanings
  explained in stat(2).	 The length of the null-terminated path name h_name,
  including the null byte, is given by h_namesize.

  The last record of the archive always contains the name TRAILER!!! Special
  files, directories, and the trailer are recorded with h_filesize equal to
  zero.

RELATED INFORMATION
  cpio(1), find(1), stat(2)

Index for Section 4

Alphabetical listing for C

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