srsq.c File Reference

SRS library for s/qmail; refactored from srs2.c from Shevek (srs@a.nosp@m.narr.nosp@m.es.or.nosp@m.g) // the temporal physicist @ Anarres. More...

#include <time.h>
#include <sys/time.h>
#include "str.h"
#include "sha1.h"
#include "byte.h"
#include "case.h"
#include "stralloc.h"
#include "srsq.h"
#include "uint_t.h"

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Macros
#define	SRS_TIME_PRECISION   (60*60*24) /* One day */
#define	SRS_TIME_BASEBITS   5 /* 2^5 = 32 = strlen(CHARS) */
#define	SRS_TIME_SIZE   2
#define	SRS_TIME_SLOTS   (1 << (SRS_TIME_BASEBITS << (SRS_TIME_SIZE - 1)))

Functions
const char *	srs_errorstr (int code)
int	srs_init (srs_ctx *srs)
int	srs_create_timestamp (char *buf, time_t now)
int	srs_check_timestamp (srs_ctx *srs, char *stamp)
int	srs_create_hash (srs_ctx *srs, char *hash, const char *secret, char *one, char *two, char *three)
int	srs_check_hash (srs_ctx *srs, const char *hash, char *one, char *two, char *three)
int	srs_make_shortcut (srs_ctx *srs, stralloc *srsaddr, char *sendhost, char *senduser, const char *aliashost)
int	srs_make_guarded (srs_ctx *srs, stralloc *srsaddr, char *sendhost, char *senduser, const char *aliashost)
int	srs_parse_shortcut (srs_ctx *srs, stralloc *srsaddr, char *senduser)
int	srs_reverse (srs_ctx *srs, stralloc *srsaddr, char *inaddr)
int	srs_forward (srs_ctx *srs, stralloc *srsaddr, const char *sender, const char *alias)

Variables
stralloc	secret = {0}
stralloc	sendhost = {0}
stralloc	senduser = {0}
const char *	SRS_TIME_BASECHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
const char *	SRS_HASH_BASECHARS

Detailed Description

SRS library for s/qmail; refactored from srs2.c from Shevek (srs@a.nosp@m.narr.nosp@m.es.or.nosp@m.g) // the temporal physicist @ Anarres.

SRS0 address format (default delimitor: '='; could be '-,+' as first): SRS0=HHH=TT=orig-domain=orig-local-part@domain-part

Guarded address format: [wrong in SRS.pdf] SRS1=HHH=rewritten-domain-part==HHH=TT=orig-domain-part=orig-local-part@domain-part

Definition in file srsq.c.

Macro Definition Documentation

SRS_TIME_BASEBITS

#define SRS_TIME_BASEBITS   5 /* 2^5 = 32 = strlen(CHARS) */

Definition at line 82 of file srsq.c.

SRS_TIME_PRECISION

#define SRS_TIME_PRECISION   (60*60*24) /* One day */

Definition at line 81 of file srsq.c.

SRS_TIME_SIZE

#define SRS_TIME_SIZE   2

Definition at line 86 of file srsq.c.

SRS_TIME_SLOTS

#define SRS_TIME_SLOTS   (1 << (SRS_TIME_BASEBITS << (SRS_TIME_SIZE - 1)))

Definition at line 87 of file srsq.c.

Function Documentation

srs_check_hash()

int srs_check_hash	(	srs_ctx *	srs,
		const char *	hash,
		char *	one,
		char *	two,
		char *	three
	)

Definition at line 186 of file srsq.c.

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srs_check_timestamp()

int srs_check_timestamp	(	srs_ctx *	srs,
		char *	stamp
	)

Definition at line 101 of file srsq.c.

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srs_create_hash()

int srs_create_hash	(	srs_ctx *	srs,
		char *	hash,
		const char *	secret,
		char *	one,
		char *	two,
		char *	three
	)

Definition at line 133 of file srsq.c.

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srs_create_timestamp()

int srs_create_timestamp	(	char *	buf,
		time_t	now
	)

Definition at line 89 of file srsq.c.

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srs_errorstr()

const char * srs_errorstr

(

int

code

)

Definition at line 29 of file srsq.c.

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srs_forward()

int srs_forward	(	srs_ctx *	srs,
		stralloc *	srsaddr,
		const char *	sender,
		const char *	alias
	)

Definition at line 360 of file srsq.c.

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srs_init()

int srs_init

(

srs_ctx *

srs

)

Definition at line 62 of file srsq.c.

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srs_make_guarded()

int srs_make_guarded	(	srs_ctx *	srs,
		stralloc *	srsaddr,
		char *	sendhost,
		char *	senduser,
		const char *	aliashost
	)

Definition at line 243 of file srsq.c.

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srs_make_shortcut()

int srs_make_shortcut	(	srs_ctx *	srs,
		stralloc *	srsaddr,
		char *	sendhost,
		char *	senduser,
		const char *	aliashost
	)

Definition at line 204 of file srsq.c.

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srs_parse_shortcut()

int srs_parse_shortcut	(	srs_ctx *	srs,
		stralloc *	srsaddr,
		char *	senduser
	)

Definition at line 287 of file srsq.c.

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srs_reverse()

int srs_reverse	(	srs_ctx *	srs,
		stralloc *	srsaddr,
		char *	inaddr
	)

Definition at line 324 of file srsq.c.

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Variable Documentation

secret

stralloc secret = {0}

Definition at line 25 of file srsq.c.

sendhost

stralloc sendhost = {0}

Definition at line 26 of file srsq.c.

senduser

stralloc senduser = {0}

Definition at line 27 of file srsq.c.

SRS_HASH_BASECHARS

const char* SRS_HASH_BASECHARS

Initial value:

= "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                                 "abcdefghijklmnopqrstuvwxyz"
                                 "0123456789+/"

Definition at line 129 of file srsq.c.

SRS_TIME_BASECHARS

const char* SRS_TIME_BASECHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"

Definition at line 85 of file srsq.c.