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Annotation of coherent/a/usr/man/COHERENT/ar.h, revision 1.1.1.1

1.1       root        1: 
                      2: 
                      3: ar.h                       Header File                       ar.h
                      4: 
                      5: 
                      6: 
                      7: 
                      8: Format for archive files
                      9: 
                     10: #include <ar.h>
                     11: 
                     12: An archive is a file that  has been built from a number of files.
                     13: Archives are  maintained by the ar  command.  Usually, an archive
                     14: is a library of object files used by the linker ld.
                     15: 
                     16: The header ar.h describes the format of an archive.  All archives
                     17: start with a magic number  ARMAG, which identifies the file as an
                     18: archive.   The members  of the archive  follow the  magic number,
                     19: each preceded by the structure ar_hdr:
                     20: 
                     21: 
                     22: #define DIRSIZ  14               /* from <dir.h> */
                     23: #define ARMAG   0177535          /* magic number */
                     24: 
                     25: 
                     26: 
                     27: struct ar_hdr {
                     28:         char    ar_name[DIRSIZ]; /* member name */
                     29:         time_t  ar_date;         /* time inserted */
                     30:         short   ar_gid;          /* group owner */
                     31:         short   ar_uid;          /* user owner */
                     32:         short   ar_mode;         /* file mode */
                     33:         size_t  ar_size;         /* file size */
                     34: };
                     35: 
                     36: 
                     37: The structure at the  head of each member is immediately followed
                     38: by ar_size bytes, which are the data of the file.
                     39: 
                     40: To enhance  the performance of ld, the  command ranlib provides a
                     41: random library facility.  ranlib produces archives that contain a
                     42: special entry named _ _.SYMDEF at the beginning.
                     43: 
                     44: All integer members of the structure (everything but ar_name) are
                     45: in canonical form to  ease portability.  See canon.h for more in-
                     46: formation.
                     47: 
                     48: ***** See Also *****
                     49: 
                     50: ar, canon.h, header files, ld, ranlib
                     51: 
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                     63: 
                     64: COHERENT Lexicon                                           Page 1
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