ggep_type.c File Reference

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Detailed Description

GGEP type-specific routines.

Author:

Raphael Manfredi

Date:

2002-2004

#include "common.h"
#include "ggep.h"
#include "ggep_type.h"
#include "hosts.h"
#include "lib/endian.h"
#include "lib/misc.h"
#include "lib/walloc.h"
#include "if/core/hosts.h"
#include "lib/override.h"

Defines
#define	TIGER_RAW_SIZE   24 /**< XXX temporary, until we implement tiger */
Functions
	RCSID ("$Id:ggep_type.c, v 1.19 2005/09/10 08:17:28 daichik Exp $")
ggept_status_t	ggept_h_sha1_extract (extvec_t *exv, gchar *buf, gint len)
	Extract the SHA1 hash of the "H" extension into the supplied buffer.
ggept_status_t	ggept_gtkgv1_extract (extvec_t *exv, struct ggep_gtkgv1 *info)
	Extract payload information from "GTKGV1" into `info'.
ggept_status_t	ggept_ip_vec_extract (extvec_t *exv, struct gnutella_host **hvec, gint *hvcnt)
ggept_status_t	ggept_alt_extract (extvec_t *exv, struct gnutella_host **hvec, gint *hvcnt)
	Extract vector of IP:port alternate locations.
ggept_status_t	ggept_push_extract (extvec_t *exv, struct gnutella_host **hvec, gint *hvcnt)
	Extract vector of IP:port push proxy locations.
ggept_status_t	ggept_hname_extract (extvec_t *exv, gchar *buf, gint len)
	Extract hostname of the "HNAME" extension into the supplied buffer.
ggept_status_t	ggept_lf_extract (extvec_t *exv, guint64 *filesize)
	Extract filesize length into `filesize' from GGEP "LF" extension.
ggept_status_t	ggept_gtkg_ipv6_extract (extvec_t *exv, host_addr_t *addr)
	Extract IPv6 address into `addr' from GGEP "GTKG.IPV6" extension.
gint	ggep_vlint_encode (guint64 v, gchar *data)
	Encodes a variable-length integer.
gint	ggept_lf_encode (guint64 filesize, gchar *data)
	Encode `filesize' for the GGEP "LF" extension into `data'.
ggept_status_t	ggept_du_extract (extvec_t *exv, guint32 *uptime)
	Extract daily uptime into `uptime', from the GGEP "DU" extensions.
gint	ggept_du_encode (guint32 uptime, gchar *data)
	Encode `uptime' for the GGEP "DU" extension into `data'.

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Define Documentation

#define TIGER_RAW_SIZE   24 /**< XXX temporary, until we implement tiger */

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Function Documentation

gint ggep_vlint_encode (  guint64  v, gchar *  data )  [inline, static]

Encodes a variable-length integer. This encoding is equivalent to little-endian encoding whereas trailing zeros are discarded. Parameters: v  the value to encode. data  must point to a sufficiently large buffer. Returns: the length in bytes of the encoded variable-length integer.

ggept_status_t ggept_alt_extract (  extvec_t *  exv, struct gnutella_host **  hvec, gint *  hvcnt )

Extract vector of IP:port alternate locations. Parameters: `exv'  no brief description. `hvec'  pointer is filled with a dynamically allocated vector. `hvcnt'  is filled with the size of the allocated vector (number of items). Unless GGEP_OK is returned, no memory allocation takes place.

gint ggept_du_encode (  guint32  uptime, gchar *  data )

Encode `uptime' for the GGEP "DU" extension into `data'. Returns: the amount of chars written.

ggept_status_t ggept_du_extract (  extvec_t *  exv, guint32 *  uptime )

Extract daily uptime into `uptime', from the GGEP "DU" extensions.

ggept_status_t ggept_gtkg_ipv6_extract (  extvec_t *  exv, host_addr_t *  addr )

Extract IPv6 address into `addr' from GGEP "GTKG.IPV6" extension. A zero length indicates IPv6 support, a length of 16 or more indicates that the first 16 bytes are a IPv6 address.

ggept_status_t ggept_gtkgv1_extract (  extvec_t *  exv, struct ggep_gtkgv1 *  info )

Extract payload information from "GTKGV1" into `info'.

ggept_status_t ggept_h_sha1_extract (  extvec_t *  exv, gchar *  buf, gint  len )

Extract the SHA1 hash of the "H" extension into the supplied buffer. Returns: extraction status: only when GGEP_OK is returned will we have the SHA1 in buf. < XXX temporary, until we implement tiger

ggept_status_t ggept_hname_extract (  extvec_t *  exv, gchar *  buf, gint  len )

Extract hostname of the "HNAME" extension into the supplied buffer. Returns: extraction status: only when GGEP_OK is returned will we have extracted something in the supplied buffer.

ggept_status_t ggept_ip_vec_extract (  extvec_t *  exv, struct gnutella_host **  hvec, gint *  hvcnt )  [static]

gint ggept_lf_encode (  guint64  filesize, gchar *  data )

Encode `filesize' for the GGEP "LF" extension into `data'. Returns: the amount of chars written.

ggept_status_t ggept_lf_extract (  extvec_t *  exv, guint64 *  filesize )

Extract filesize length into `filesize' from GGEP "LF" extension.

ggept_status_t ggept_push_extract (  extvec_t *  exv, struct gnutella_host **  hvec, gint *  hvcnt )

Extract vector of IP:port push proxy locations. The `hvec' pointer is filled with a dynamically allocated vector, and the `hvcnt' is filled with the size of the allocated vector (number of items). Unless GGEP_OK is returned, no memory allocation takes place.

RCSID (  "$Id:ggep_type.  c, v 1.19 2005/09/10 08:17:28 daichik Exp $"  )

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