NAME

magic − magic numbers for HP-UX implementations

SYNOPSIS

#include <magic.h>

DESCRIPTION

The magic.h file localizes all information about HP-UX “magic numbers” in one file, thus facilitating uniform treatment of magic numbers.  This file specifies the location of the magic number in a file (always the start of the file) and the structure of the magic number:

struct magic_number {
    unsigned short    system_id;
    unsigned short    file_type;
};
typedef      struct    magic_number MAGIC;

magic.h includes definitions for the system ID s of all HP machines running HP-UX, and file types that are common to all implementations.  There may be additional implementation-dependent file types.  The predefined file types are:

/* for object code files */
    #define RELOC_MAGIC     0x106   /* relocatable only */
    #define EXEC_MAGIC      0x107   /* normal executable */
    #define SHARE_MAGIC     0x108   /* shared executable */
    #define DEMAND_MAGIC    0x10B   /* demand-load executable */
    #define LISP_MAGIC      0x10C   /* compiled Lisp */
    #define DL_MAGIC        0x10D   /* dynamic load library */
    #define SHL_MAGIC       0x10E   /* shared library */
    #define HPE_MAGIC       0x150   /* HPE boot image */

The values for system_id are defined in model(4).

WARNINGS

Files managed by cpio use a different form of magic number that is incompatible with <magic.h>. 

SEE ALSO

ar(1), ld(1), a.out(4), ar(4), model(4). 

Hewlett-Packard Company  —  HP-UX Release 9.0: August 1992