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/ IRIX Base Documentation 2002 November / SGI IRIX Base Documentation 2002 November.iso / usr / share / catman / p_man / cat4 / cpio.z / cpio
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Text File  |  2002-10-03  |  2.3 KB  |  67 lines
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  4. CCCCPPPPIIIIOOOO((((4444))))                                                                CCCCPPPPIIIIOOOO((((4444))))
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  8. NNNNAAAAMMMMEEEE
  9.      cpio - format of cpio archive
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  11. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  12.      The _h_e_a_d_e_r structure, when the ----cccc option of _c_p_i_o(1) is not used, is:
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  14.           struct {
  15.                      short    h_magic,
  16.                               h_dev;
  17.                      ushort   h_ino,
  18.                               h_mode,
  19.                               h_uid,
  20.                               h_gid;
  21.                      short    h_nlink,
  22.                               h_rdev,
  23.                               h_mtime[2],
  24.                               h_namesize,
  25.                               h_filesize[2];
  26.                      char     h_name[h_namesize rounded to word];
  27.           } Hdr;
  28.  
  29.      When the ----cccc option is used, the _h_e_a_d_e_r information is described by:
  30.  
  31.        sscanf(Chdr,"%6lo%6lo%6llo%6lo%6lo%6lo%6lo%6lo%11lo%6o%11llo%s",
  32.          &Hdr.h_magic, &Hdr.h_dev, &Hdr.h_ino, &Hdr.h_mode,
  33.          &Hdr.h_uid, &Hdr.h_gid, &Hdr.h_nlink, &Hdr.h_rdev,
  34.          &Hdr.g_mtime, &Hdr.h_namesize,&Hdr.h_filesize,Hdr.h_name);
  35.     Other archive formats (e.g uuuussssttttaaaarrrr) use other sscanf strings.
  36.     The contents of each file are recorded in an element of the array of
  37.     varying length structures, _a_r_c_h_i_v_e, together with other items describing
  38.     the file.  Every instance of _h__m_a_g_i_c contains the constant 070707 (octal).
  39.     The items _h__d_e_v through _h__m_t_i_m_e have meanings explained in _s_t_a_t(2).  The
  40.     length of the null-terminated path name _h__n_a_m_e, including the null byte,
  41.     is given by _h__n_a_m_e_s_i_z_e.
  42.  
  43.      The last record of the _a_r_c_h_i_v_e always contains the name TRAILER!!!.
  44.      Special files, directories, and the trailer are recorded with _h__f_i_l_e_s_i_z_e
  45.      equal to zero.
  46.  
  47. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  48.      cpio(1), find(1), stat(2)
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  63.                                                                         PPPPaaaaggggeeee 1111
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