bfd.h

也是一个linux系统下的网络入侵检测程序

  /* Hash code.  This is the full hash code, not the index into the
     table.  */
  unsigned long hash;
};

/* A hash table.  */

struct bfd_hash_table
{
  /* The hash array.  */
  struct bfd_hash_entry **table;
  /* The number of slots in the hash table.  */
  unsigned int size;
  /* A function used to create new elements in the hash table.  The
     first entry is itself a pointer to an element.  When this
     function is first invoked, this pointer will be NULL.  However,
     having the pointer permits a hierarchy of method functions to be
     built each of which calls the function in the superclass.  Thus
     each function should be written to allocate a new block of memory
     only if the argument is NULL.  */
  struct bfd_hash_entry *(*newfunc)
    (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
   /* An objalloc for this hash table.  This is a struct objalloc *,
     but we use void * to avoid requiring the inclusion of objalloc.h.  */
  void *memory;
};

/* Initialize a hash table.  */
extern bfd_boolean bfd_hash_table_init
  (struct bfd_hash_table *,
   struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
			       struct bfd_hash_table *,
			       const char *));

/* Initialize a hash table specifying a size.  */
extern bfd_boolean bfd_hash_table_init_n
  (struct bfd_hash_table *,
   struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
			       struct bfd_hash_table *,
			       const char *),
   unsigned int size);

/* Free up a hash table.  */
extern void bfd_hash_table_free
  (struct bfd_hash_table *);

/* Look up a string in a hash table.  If CREATE is TRUE, a new entry
   will be created for this string if one does not already exist.  The
   COPY argument must be TRUE if this routine should copy the string
   into newly allocated memory when adding an entry.  */
extern struct bfd_hash_entry *bfd_hash_lookup
  (struct bfd_hash_table *, const char *, bfd_boolean create,
   bfd_boolean copy);

/* Replace an entry in a hash table.  */
extern void bfd_hash_replace
  (struct bfd_hash_table *, struct bfd_hash_entry *old,
   struct bfd_hash_entry *nw);

/* Base method for creating a hash table entry.  */
extern struct bfd_hash_entry *bfd_hash_newfunc
  (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);

/* Grab some space for a hash table entry.  */
extern void *bfd_hash_allocate
  (struct bfd_hash_table *, unsigned int);

/* Traverse a hash table in a random order, calling a function on each
   element.  If the function returns FALSE, the traversal stops.  The
   INFO argument is passed to the function.  */
extern void bfd_hash_traverse
  (struct bfd_hash_table *,
   bfd_boolean (*) (struct bfd_hash_entry *, void *),
   void *info);

#define COFF_SWAP_TABLE (void *) &bfd_coff_std_swap_table

/* User program access to BFD facilities.  */

/* Direct I/O routines, for programs which know more about the object
   file than BFD does.  Use higher level routines if possible.  */

extern bfd_size_type bfd_bread (void *, bfd_size_type, bfd *);
extern bfd_size_type bfd_bwrite (const void *, bfd_size_type, bfd *);
extern int bfd_seek (bfd *, file_ptr, int);
extern file_ptr bfd_tell (bfd *);
extern int bfd_flush (bfd *);
extern int bfd_stat (bfd *, struct stat *);

/* Deprecated old routines.  */
#if __GNUC__
#define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)				\
  (warn_deprecated ("bfd_read", __FILE__, __LINE__, __FUNCTION__),	\
   bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
#define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)				\
  (warn_deprecated ("bfd_write", __FILE__, __LINE__, __FUNCTION__),	\
   bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
#else
#define bfd_read(BUF, ELTSIZE, NITEMS, ABFD)				\
  (warn_deprecated ("bfd_read", (const char *) 0, 0, (const char *) 0), \
   bfd_bread ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
#define bfd_write(BUF, ELTSIZE, NITEMS, ABFD)				\
  (warn_deprecated ("bfd_write", (const char *) 0, 0, (const char *) 0),\
   bfd_bwrite ((BUF), (ELTSIZE) * (NITEMS), (ABFD)))
#endif
extern void warn_deprecated (const char *, const char *, int, const char *);

/* Cast from const char * to char * so that caller can assign to
   a char * without a warning.  */
#define bfd_get_filename(abfd) ((char *) (abfd)->filename)
#define bfd_get_cacheable(abfd) ((abfd)->cacheable)
#define bfd_get_format(abfd) ((abfd)->format)
#define bfd_get_target(abfd) ((abfd)->xvec->name)
#define bfd_get_flavour(abfd) ((abfd)->xvec->flavour)
#define bfd_family_coff(abfd) \
  (bfd_get_flavour (abfd) == bfd_target_coff_flavour || \
   bfd_get_flavour (abfd) == bfd_target_xcoff_flavour)
#define bfd_big_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
#define bfd_little_endian(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_LITTLE)
#define bfd_header_big_endian(abfd) \
  ((abfd)->xvec->header_byteorder == BFD_ENDIAN_BIG)
#define bfd_header_little_endian(abfd) \
  ((abfd)->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
#define bfd_get_file_flags(abfd) ((abfd)->flags)
#define bfd_applicable_file_flags(abfd) ((abfd)->xvec->object_flags)
#define bfd_applicable_section_flags(abfd) ((abfd)->xvec->section_flags)
#define bfd_my_archive(abfd) ((abfd)->my_archive)
#define bfd_has_map(abfd) ((abfd)->has_armap)

#define bfd_valid_reloc_types(abfd) ((abfd)->xvec->valid_reloc_types)
#define bfd_usrdata(abfd) ((abfd)->usrdata)

#define bfd_get_start_address(abfd) ((abfd)->start_address)
#define bfd_get_symcount(abfd) ((abfd)->symcount)
#define bfd_get_outsymbols(abfd) ((abfd)->outsymbols)
#define bfd_count_sections(abfd) ((abfd)->section_count)

#define bfd_get_dynamic_symcount(abfd) ((abfd)->dynsymcount)

#define bfd_get_symbol_leading_char(abfd) ((abfd)->xvec->symbol_leading_char)

#define bfd_set_cacheable(abfd,bool) (((abfd)->cacheable = bool), TRUE)

extern bfd_boolean bfd_cache_close
  (bfd *abfd);
/* NB: This declaration should match the autogenerated one in libbfd.h.  */

extern bfd_boolean bfd_record_phdr
  (bfd *, unsigned long, bfd_boolean, flagword, bfd_boolean, bfd_vma,
   bfd_boolean, bfd_boolean, unsigned int, struct bfd_section **);

/* Byte swapping routines.  */

bfd_uint64_t bfd_getb64 (const void *);
bfd_uint64_t bfd_getl64 (const void *);
bfd_int64_t bfd_getb_signed_64 (const void *);
bfd_int64_t bfd_getl_signed_64 (const void *);
bfd_vma bfd_getb32 (const void *);
bfd_vma bfd_getl32 (const void *);
bfd_signed_vma bfd_getb_signed_32 (const void *);
bfd_signed_vma bfd_getl_signed_32 (const void *);
bfd_vma bfd_getb16 (const void *);
bfd_vma bfd_getl16 (const void *);
bfd_signed_vma bfd_getb_signed_16 (const void *);
bfd_signed_vma bfd_getl_signed_16 (const void *);
void bfd_putb64 (bfd_uint64_t, void *);
void bfd_putl64 (bfd_uint64_t, void *);
void bfd_putb32 (bfd_vma, void *);
void bfd_putl32 (bfd_vma, void *);
void bfd_putb16 (bfd_vma, void *);
void bfd_putl16 (bfd_vma, void *);

/* Byte swapping routines which take size and endiannes as arguments.  */

bfd_uint64_t bfd_get_bits (const void *, int, bfd_boolean);
void bfd_put_bits (bfd_uint64_t, void *, int, bfd_boolean);

/* Externally visible ECOFF routines.  */

#if defined(__STDC__) || defined(ALMOST_STDC)
struct ecoff_debug_info;
struct ecoff_debug_swap;
struct ecoff_extr;
struct bfd_symbol;
struct bfd_link_info;
struct bfd_link_hash_entry;
struct bfd_elf_version_tree;
#endif
extern bfd_vma bfd_ecoff_get_gp_value
  (bfd * abfd);
extern bfd_boolean bfd_ecoff_set_gp_value
  (bfd *abfd, bfd_vma gp_value);
extern bfd_boolean bfd_ecoff_set_regmasks
  (bfd *abfd, unsigned long gprmask, unsigned long fprmask,
   unsigned long *cprmask);
extern void *bfd_ecoff_debug_init
  (bfd *output_bfd, struct ecoff_debug_info *output_debug,
   const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
extern void bfd_ecoff_debug_free
  (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
   const struct ecoff_debug_swap *output_swap, struct bfd_link_info *);
extern bfd_boolean bfd_ecoff_debug_accumulate
  (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
   const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
   struct ecoff_debug_info *input_debug,
   const struct ecoff_debug_swap *input_swap, struct bfd_link_info *);
extern bfd_boolean bfd_ecoff_debug_accumulate_other
  (void *handle, bfd *output_bfd, struct ecoff_debug_info *output_debug,
   const struct ecoff_debug_swap *output_swap, bfd *input_bfd,
   struct bfd_link_info *);
extern bfd_boolean bfd_ecoff_debug_externals
  (bfd *abfd, struct ecoff_debug_info *debug,
   const struct ecoff_debug_swap *swap, bfd_boolean relocatable,
   bfd_boolean (*get_extr) (struct bfd_symbol *, struct ecoff_extr *),
   void (*set_index) (struct bfd_symbol *, bfd_size_type));
extern bfd_boolean bfd_ecoff_debug_one_external
  (bfd *abfd, struct ecoff_debug_info *debug,
   const struct ecoff_debug_swap *swap, const char *name,
   struct ecoff_extr *esym);
extern bfd_size_type bfd_ecoff_debug_size
  (bfd *abfd, struct ecoff_debug_info *debug,
   const struct ecoff_debug_swap *swap);
extern bfd_boolean bfd_ecoff_write_debug
  (bfd *abfd, struct ecoff_debug_info *debug,
   const struct ecoff_debug_swap *swap, file_ptr where);
extern bfd_boolean bfd_ecoff_write_accumulated_debug
  (void *handle, bfd *abfd, struct ecoff_debug_info *debug,
   const struct ecoff_debug_swap *swap,
   struct bfd_link_info *info, file_ptr where);
extern bfd_boolean bfd_mips_ecoff_create_embedded_relocs
  (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);

/* Externally visible ELF routines.  */

struct bfd_link_needed_list
{
  struct bfd_link_needed_list *next;
  bfd *by;
  const char *name;
};

enum dynamic_lib_link_class {
  DYN_NORMAL = 0,
  DYN_AS_NEEDED = 1,
  DYN_DT_NEEDED = 2
};

extern bfd_boolean bfd_elf_record_link_assignment
  (bfd *, struct bfd_link_info *, const char *, bfd_boolean);
extern struct bfd_link_needed_list *bfd_elf_get_needed_list
  (bfd *, struct bfd_link_info *);
extern bfd_boolean bfd_elf_get_bfd_needed_list
  (bfd *, struct bfd_link_needed_list **);
extern bfd_boolean bfd_elf_size_dynamic_sections
  (bfd *, const char *, const char *, const char *, const char * const *,
   struct bfd_link_info *, struct bfd_section **, struct bfd_elf_version_tree *);
extern void bfd_elf_set_dt_needed_name
  (bfd *, const char *);
extern const char *bfd_elf_get_dt_soname
  (bfd *);
extern void bfd_elf_set_dyn_lib_class
  (bfd *, int);
extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
  (bfd *, struct bfd_link_info *);
extern bfd_boolean bfd_elf_discard_info
  (bfd *, struct bfd_link_info *);

/* Return an upper bound on the number of bytes required to store a
   copy of ABFD's program header table entries.  Return -1 if an error
   occurs; bfd_get_error will return an appropriate code.  */
extern long bfd_get_elf_phdr_upper_bound
  (bfd *abfd);

/* Copy ABFD's program header table entries to *PHDRS.  The entries
   will be stored as an array of Elf_Internal_Phdr structures, as
   defined in include/elf/internal.h.  To find out how large the
   buffer needs to be, call bfd_get_elf_phdr_upper_bound.

   Return the number of program header table entries read, or -1 if an
   error occurs; bfd_get_error will return an appropriate code.  */
extern int bfd_get_elf_phdrs
  (bfd *abfd, void *phdrs);

/* Create a new BFD as if by bfd_openr.  Rather than opening a file,
   reconstruct an ELF file by reading the segments out of remote memory
   based on the ELF file header at EHDR_VMA and the ELF program headers it
   points to.  If not null, *LOADBASEP is filled in with the difference
   between the VMAs from which the segments were read, and the VMAs the
   file headers (and hence BFD's idea of each section's VMA) put them at.

   The function TARGET_READ_MEMORY is called to copy LEN bytes from the
   remote memory at target address VMA into the local buffer at MYADDR; it
   should return zero on success or an `errno' code on failure.  TEMPL must
   be a BFD for an ELF target with the word size and byte order found in
   the remote memory.  */
extern bfd *bfd_elf_bfd_from_remote_memory
  (bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
   int (*target_read_memory) (bfd_vma vma, char *myaddr, int len));

/* Return the arch_size field of an elf bfd, or -1 if not elf.  */
extern int bfd_get_arch_size
  (bfd *);

/* Return TRUE if address "naturally" sign extends, or -1 if not elf.  */
extern int bfd_get_sign_extend_vma
  (bfd *);

extern struct bfd_section *_bfd_elf_tls_setup
  (bfd *, struct bfd_link_info *);

extern bfd_boolean bfd_m68k_elf32_create_embedded_relocs
  (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);
extern bfd_boolean bfd_mips_elf32_create_embedded_relocs
  (bfd *, struct bfd_link_info *, struct bfd_section *, struct bfd_section *, char **);

/* SunOS shared library support routines for the linker.  */

extern struct bfd_link_needed_list *bfd_sunos_get_needed_list
  (bfd *, struct bfd_link_info *);
extern bfd_boolean bfd_sunos_record_link_assignment
  (bfd *, struct bfd_link_info *, const char *);
extern bfd_boolean bfd_sunos_size_dynamic_sections
  (bfd *, struct bfd_link_info *, struct bfd_section **, struct bfd_section **, struct bfd_section **);

/* Linux shared library support routines for the linker.  */

extern bfd_boolean bfd_i386linux_size_dynamic_sections
  (bfd *, struct bfd_link_info *);
extern bfd_boolean bfd_m68klinux_size_dynamic_sections
  (bfd *, struct bfd_link_info *);
extern bfd_boolean bfd_sparclinux_size_dynamic_sections
  (bfd *, struct bfd_link_info *);

/* mmap hacks */

struct _bfd_window_internal;
typedef struct _bfd_window_internal bfd_window_internal;

typedef struct _bfd_window
{
  /* What the user asked for.  */
  void *data;
  bfd_size_type size;
  /* The actual window used by BFD.  Small user-requested read-only
     regions sharing a page may share a single window into the object
     file.  Read-write versions shouldn't until I've fixed things to
     keep track of which portions have been claimed by the
     application; don't want to give the same region back when the
     application wants two writable copies!  */
  struct _bfd_window_internal *i;
}
bfd_window;

extern void bfd_init_window
  (bfd_window *);
extern void bfd_free_window
  (bfd_window *);
extern bfd_boolean bfd_get_file_window
  (bfd *, file_ptr, bfd_size_type, bfd_window *, bfd_boolean);

/* XCOFF support routines for the linker.  */

extern bfd_boolean bfd_xcoff_link_record_set
  (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_size_type);
extern bfd_boolean bfd_xcoff_import_symbol
  (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, bfd_vma,
   const char *, const char *, const char *, unsigned int);