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#ifndef _RECORD_H_INCLUDED_
#define _RECORD_H_INCLUDED_
/*++
/* NAME
/* record 3h
/* SUMMARY
/* simple typed record I/O
/* SYNOPSIS
/* #include <record.h>
/* DESCRIPTION
/* .nf
/*
* System library.
*/
#include <stdarg.h>
/*
* Utility library.
*/
#include <vstring.h>
#include <vstream.h>
/*
* Record type values are positive numbers 0..255. Negative record type
* values are reserved for diagnostics.
*/
#define REC_TYPE_EOF -1 /* no record */
#define REC_TYPE_ERROR -2 /* bad record */
/*
* Functional interface.
*/
extern int rec_get_raw(VSTREAM *, VSTRING *, ssize_t, int);
extern int rec_put(VSTREAM *, int, const char *, ssize_t);
extern int rec_put_type(VSTREAM *, int, off_t);
extern int PRINTFLIKE(3, 4) rec_fprintf(VSTREAM *, int, const char *,...);
extern int rec_fputs(VSTREAM *, int, const char *);
extern int rec_goto(VSTREAM *, const char *);
extern int rec_pad(VSTREAM *, int, ssize_t);
#define REC_PUT_BUF(v, t, b) rec_put((v), (t), vstring_str(b), VSTRING_LEN(b))
#define REC_FLAG_NONE (0)
#define REC_FLAG_FOLLOW_PTR (1<<0) /* follow PTR records */
#define REC_FLAG_SKIP_DTXT (1<<1) /* skip DTXT records */
#define REC_FLAG_SEEK_END (1<<2) /* seek EOF after END record */
#define REC_FLAG_DEFAULT \
(REC_FLAG_FOLLOW_PTR | REC_FLAG_SKIP_DTXT | REC_FLAG_SEEK_END)
#define REC_GET_HIDDEN_TYPE(t) \
((t) == REC_TYPE_PTR || (t) == REC_TYPE_DTXT)
#define rec_get(fp, buf, limit) \
rec_get_raw((fp), (buf), (limit), REC_FLAG_DEFAULT)
#define REC_SPACE_NEED(buflen, reclen) do { \
ssize_t _c, _l; \
for (_c = 1, _l = (buflen); (_l >>= 7U) != 0; _c++) \
; \
(reclen) = 1 + _c + (buflen); \
} while (0)
/*
* Stuff that needs <stdarg.h>
*/
extern int rec_vfprintf(VSTREAM *, int, const char *, va_list);
/* 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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