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#ifndef _ATTR_H_INCLUDED_
#define _ATTR_H_INCLUDED_
/*++
/* NAME
/* attr 3h
/* SUMMARY
/* attribute list manipulations
/* SYNOPSIS
/* #include "attr.h"
DESCRIPTION
.nf
/*
* System library.
*/
#include <stdarg.h>
/*
* Utility library.
*/
#include <vstream.h>
#include <vstring.h>
#include <htable.h>
#include <nvtable.h>
#include <check_arg.h>
/*
* Delegation for better data abstraction.
*/
typedef int (*ATTR_SCAN_COMMON_FN) (VSTREAM *, int,...);
typedef int (*ATTR_SCAN_CUSTOM_FN) (ATTR_SCAN_COMMON_FN, VSTREAM *, int, void *);
typedef int (*ATTR_PRINT_COMMON_FN) (VSTREAM *, int,...);
typedef int (*ATTR_PRINT_CUSTOM_FN) (ATTR_PRINT_COMMON_FN, VSTREAM *, int, const void *);
/*
* Attribute types. See attr_scan(3) for documentation.
*/
#define ATTR_TYPE_END 0 /* end of data */
#define ATTR_TYPE_INT 1 /* Unsigned integer */
#define ATTR_TYPE_NUM ATTR_TYPE_INT
#define ATTR_TYPE_STR 2 /* Character string */
#define ATTR_TYPE_HASH 3 /* Hash table */
#define ATTR_TYPE_NV 3 /* Name-value table */
#define ATTR_TYPE_LONG 4 /* Unsigned long */
#define ATTR_TYPE_DATA 5 /* Binary data */
#define ATTR_TYPE_FUNC 6 /* Function pointer */
#define ATTR_TYPE_STREQ 7 /* Requires (name, value) match */
/*
* Optional sender-specified grouping for hash or nameval tables.
*/
#define ATTR_TYPE_OPEN '{'
#define ATTR_TYPE_CLOSE '}'
#define ATTR_NAME_OPEN "{"
#define ATTR_NAME_CLOSE "}"
#define ATTR_HASH_LIMIT 1024 /* Size of hash table */
/*
* Typechecking support for variadic function arguments. See check_arg(3h)
* for documentation.
*/
#define SEND_ATTR_INT(name, val) ATTR_TYPE_INT, CHECK_CPTR(ATTR, char, (name)), CHECK_VAL(ATTR, int, (val))
#define SEND_ATTR_STR(name, val) ATTR_TYPE_STR, CHECK_CPTR(ATTR, char, (name)), CHECK_CPTR(ATTR, char, (val))
#define SEND_ATTR_HASH(val) ATTR_TYPE_HASH, CHECK_CPTR(ATTR, HTABLE, (val))
#define SEND_ATTR_NV(val) ATTR_TYPE_NV, CHECK_CPTR(ATTR, NVTABLE, (val))
#define SEND_ATTR_LONG(name, val) ATTR_TYPE_LONG, CHECK_CPTR(ATTR, char, (name)), CHECK_VAL(ATTR, long, (val))
#define SEND_ATTR_DATA(name, len, val) ATTR_TYPE_DATA, CHECK_CPTR(ATTR, char, (name)), CHECK_VAL(ATTR, ssize_t, (len)), CHECK_CPTR(ATTR, void, (val))
#define SEND_ATTR_FUNC(func, val) ATTR_TYPE_FUNC, CHECK_VAL(ATTR, ATTR_PRINT_CUSTOM_FN, (func)), CHECK_CPTR(ATTR, void, (val))
#define RECV_ATTR_INT(name, val) ATTR_TYPE_INT, CHECK_CPTR(ATTR, char, (name)), CHECK_PTR(ATTR, int, (val))
#define RECV_ATTR_STR(name, val) ATTR_TYPE_STR, CHECK_CPTR(ATTR, char, (name)), CHECK_PTR(ATTR, VSTRING, (val))
#define RECV_ATTR_STREQ(name, val) ATTR_TYPE_STREQ, CHECK_CPTR(ATTR, char, (name)), CHECK_CPTR(ATTR, char, (val))
#define RECV_ATTR_HASH(val) ATTR_TYPE_HASH, CHECK_PTR(ATTR, HTABLE, (val))
#define RECV_ATTR_NV(val) ATTR_TYPE_NV, CHECK_PTR(ATTR, NVTABLE, (val))
#define RECV_ATTR_LONG(name, val) ATTR_TYPE_LONG, CHECK_CPTR(ATTR, char, (name)), CHECK_PTR(ATTR, long, (val))
#define RECV_ATTR_DATA(name, val) ATTR_TYPE_DATA, CHECK_CPTR(ATTR, char, (name)), CHECK_PTR(ATTR, VSTRING, (val))
#define RECV_ATTR_FUNC(func, val) ATTR_TYPE_FUNC, CHECK_VAL(ATTR, ATTR_SCAN_CUSTOM_FN, (func)), CHECK_PTR(ATTR, void, (val))
CHECK_VAL_HELPER_DCL(ATTR, ssize_t);
CHECK_VAL_HELPER_DCL(ATTR, long);
CHECK_VAL_HELPER_DCL(ATTR, int);
CHECK_PTR_HELPER_DCL(ATTR, void);
CHECK_PTR_HELPER_DCL(ATTR, long);
CHECK_PTR_HELPER_DCL(ATTR, int);
CHECK_PTR_HELPER_DCL(ATTR, VSTRING);
CHECK_PTR_HELPER_DCL(ATTR, NVTABLE);
CHECK_PTR_HELPER_DCL(ATTR, HTABLE);
CHECK_CPTR_HELPER_DCL(ATTR, void);
CHECK_CPTR_HELPER_DCL(ATTR, char);
CHECK_CPTR_HELPER_DCL(ATTR, NVTABLE);
CHECK_CPTR_HELPER_DCL(ATTR, HTABLE);
CHECK_VAL_HELPER_DCL(ATTR, ATTR_PRINT_CUSTOM_FN);
CHECK_VAL_HELPER_DCL(ATTR, ATTR_SCAN_CUSTOM_FN);
/*
* Flags that control processing. See attr_scan(3) for documentation.
*/
#define ATTR_FLAG_NONE 0
#define ATTR_FLAG_MISSING (1<<0) /* Flag missing attribute */
#define ATTR_FLAG_EXTRA (1<<1) /* Flag spurious attribute */
#define ATTR_FLAG_MORE (1<<2) /* Don't skip or terminate */
#define ATTR_FLAG_PRINTABLE (1<<3) /* Sanitize received strings */
#define ATTR_FLAG_STRICT (ATTR_FLAG_MISSING | ATTR_FLAG_EXTRA)
#define ATTR_FLAG_ALL (017)
/*
* Default to null-terminated, as opposed to base64-encoded.
*/
#define attr_print attr_print0
#define attr_vprint attr_vprint0
#define attr_scan attr_scan0
#define attr_vscan attr_vscan0
#define attr_scan_more attr_scan_more0
/*
* attr_print64.c.
*/
extern int attr_print64(VSTREAM *, int,...);
extern int attr_vprint64(VSTREAM *, int, va_list);
/*
* attr_scan64.c.
*/
extern int WARN_UNUSED_RESULT attr_scan64(VSTREAM *, int,...);
extern int WARN_UNUSED_RESULT attr_vscan64(VSTREAM *, int, va_list);
extern int WARN_UNUSED_RESULT attr_scan_more64(VSTREAM *);
/*
* attr_print0.c.
*/
extern int attr_print0(VSTREAM *, int,...);
extern int attr_vprint0(VSTREAM *, int, va_list);
/*
* attr_scan0.c.
*/
extern int WARN_UNUSED_RESULT attr_scan0(VSTREAM *, int,...);
extern int WARN_UNUSED_RESULT attr_vscan0(VSTREAM *, int, va_list);
extern int WARN_UNUSED_RESULT attr_scan_more0(VSTREAM *);
/*
* attr_scan_plain.c.
*/
extern int attr_print_plain(VSTREAM *, int,...);
extern int attr_vprint_plain(VSTREAM *, int, va_list);
extern int attr_scan_more_plain(VSTREAM *);
/*
* attr_print_plain.c.
*/
extern int WARN_UNUSED_RESULT attr_scan_plain(VSTREAM *, int,...);
extern int WARN_UNUSED_RESULT attr_vscan_plain(VSTREAM *, int, va_list);
/*
* Attribute names for testing the compatibility of the read and write
* routines.
*/
#ifdef TEST
#define ATTR_NAME_INT "number"
#define ATTR_NAME_STR "string"
#define ATTR_NAME_LONG "long_number"
#define ATTR_NAME_DATA "data"
#endif
/* 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
/*
/* Wietse Venema
/* Google, Inc.
/* 111 8th Avenue
/* New York, NY 10011, USA
/*--*/
#endif
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