arcoff.h -- Header File

COFF archive-file header
#include <coff/arcoff.h>

arcoff.h declares the structure ar_hdr, which  is the header to a member of
an archive.  ar_hdr is structured as follows:

struct ar_hdr
{
     char ar_name[16];        /* file member name - `/' terminated */
     char ar_date[12];        /* file member date - decimal */
     char ar_uid[6];          /* file member user id - decimal */
     char ar_gid[6];          /* file member group id - decimal */
     char ar_mode[8];         /* file member mode - octal */
     char ar_size[10];        /* file member size - decimal */
     char ar_fmag[2];         /* ARFMAG - string to end header */
};

The COFF common-archive format has the following structure:


    _______________________________________________
    |__________ARCHIVE_MAGIC_STRING_______________|
    |__________ARCHIVE_FILE_MEMBER_1______________|
    |                                             |
    |       Archive File Header "ar_hdr"          |
    |.............................................|
    |             Member Contents                 |
    |               1. External symbol directory  |
    |               2. Text file                  |
    |_____________________________________________|
    |________ARCHIVE_FILE_MEMBER_2________________|
    |                "ar_hdr"                     |
    |.............................................|
    |       Member Contents (.o or text file)     |
    |_____________________________________________|
    |       .               .               .     |
    |       .               .               .     |
    |       .               .               .     |
    |_____________________________________________|
    |________ARCHIVE_FILE_MEMBER_n________________|
    |               "ar_hdr"                      |
    |.............................................|
    |               Member Contents               |
    |_____________________________________________|

See Also

a_out.h,
file formats,
header files
Gircyc, G.R.:  Understanding and  Using COFF.  Sebastopol,  Calif, O'Reilly
& Associates, Inc., 1990.

© 2012 by Stephen A. Ness