urn.c File Reference

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Detailed Description

URN handling of specific formats.

Author:

Raphael Manfredi

Date:

2002-2004

#include "common.h"
#include "base32.h"
#include "misc.h"
#include "urn.h"
#include "override.h"

Functions
	RCSID ("$Id:urn.c, v 1.9 2005/06/25 01:37:43 daichik Exp $")
gboolean	urn_get_http_sha1 (const gchar *buf, gchar *retval)
	Validate SHA1 starting in NUL-terminated `buf' as a proper base32 encoding of a SHA1 hash, and write decoded value in `retval'.
gboolean	urn_get_sha1 (const gchar *buf, gchar *digest)
	Locate the start of "urn:sha1:" or "urn:bitprint:" indications and extract the SHA1 out of it, placing it in the supplied `digest' buffer.
gboolean	urn_get_sha1_no_prefix (const gchar *buf, gchar *digest)
	This is the same as urn_get_sha1(), only the leading "urn:" part is missing (typically a URN embedded in a GGEP "u").

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Function Documentation

RCSID (  "$Id:urn.  c, v 1.9 2005/06/25 01:37:43 daichik Exp $"  )

gboolean urn_get_http_sha1 (  const gchar *  buf, gchar *  retval )

Validate SHA1 starting in NUL-terminated `buf' as a proper base32 encoding of a SHA1 hash, and write decoded value in `retval'. The SHA1 typically comes from HTTP, in a X-Gnutella-Content-URN header. Therefore, we unconditionally accept both old and new encodings. Returns: TRUE if the SHA1 was valid and properly decoded, FALSE on error.

gboolean urn_get_sha1 (  const gchar *  buf, gchar *  digest )

Locate the start of "urn:sha1:" or "urn:bitprint:" indications and extract the SHA1 out of it, placing it in the supplied `digest' buffer. Returns: whether we successfully extracted the SHA1.

gboolean urn_get_sha1_no_prefix (  const gchar *  buf, gchar *  digest )

This is the same as urn_get_sha1(), only the leading "urn:" part is missing (typically a URN embedded in a GGEP "u"). `buf' MUST start with "sha1:" or "bitprint:" indications. Since the leading "urn:" part is missing, we cannot be lenient. Extract the SHA1 out of it, placing it in the supplied `digest' buffer. Returns: whether we successfully extracted the SHA1.

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