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#ifndef _DSN_UTIL_H_INCLUDED_
#define _DSN_UTIL_H_INCLUDED_
/*++
/* NAME
/* dsn_util 3h
/* SUMMARY
/* DSN status parsing routines
/* SYNOPSIS
/* #include <dsn_util.h>
/* DESCRIPTION
/* .nf
/*
* Utility library.
*/
#include <vstring.h>
/*
* Detail format is digit "." digit{1,3} "." digit{1,3}.
*/
#define DSN_DIGS1 1 /* leading digits */
#define DSN_DIGS2 3 /* middle digits */
#define DSN_DIGS3 3 /* trailing digits */
#define DSN_LEN (DSN_DIGS1 + 1 + DSN_DIGS2 + 1 + DSN_DIGS3)
#define DSN_SIZE (DSN_LEN + 1)
/*
* Storage for an enhanced status code. Avoid using malloc for itty-bitty
* strings with a known size limit.
*
* XXX gcc version 2 complains about sizeof() as format width specifier.
*/
typedef struct {
char data[DSN_SIZE]; /* NOT a public interface */
} DSN_STAT;
#define DSN_UPDATE(dsn_buf, dsn, len) do { \
if (len >= sizeof((dsn_buf).data)) \
msg_panic("DSN_UPDATE: bad DSN code \"%.*s...\" length %d", \
INT_SIZEOF((dsn_buf).data) - 1, dsn, len); \
strncpy((dsn_buf).data, (dsn), (len)); \
(dsn_buf).data[len] = 0; \
} while (0)
#define DSN_STATUS(dsn_buf) ((const char *) (dsn_buf).data)
#define DSN_CLASS(dsn_buf) ((dsn_buf).data[0])
/*
* Split flat text into detail code and free text.
*/
typedef struct {
DSN_STAT dsn; /* RFC 3463 status */
const char *text; /* free text */
} DSN_SPLIT;
extern DSN_SPLIT *dsn_split(DSN_SPLIT *, const char *, const char *);
extern size_t dsn_valid(const char *);
/*
* Create flat text from detail code and free text.
*/
extern char *dsn_prepend(const char *, const char *);
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*--*/
#endif
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