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      1 /*	$NetBSD: dsb_scan.c,v 1.3 2022/10/08 16:12:45 christos Exp $	*/
      2 
      3 /*++
      4 /* NAME
      5 /*	dsb_scan
      6 /* SUMMARY
      7 /*	read DSN_BUF from stream
      8 /* SYNOPSIS
      9 /*	#include <dsb_scan.h>
     10 /*
     11 /*	int	dsb_scan(scan_fn, stream, flags, ptr)
     12 /*	ATTR_SCAN_COMMON_FN scan_fn;
     13 /*	VSTREAM *stream;
     14 /*	int	flags;
     15 /*	void	*ptr;
     16 /* DESCRIPTION
     17 /*	dsb_scan() reads a DSN_BUF from the named stream using the
     18 /*	specified attribute scan routine. dsb_scan() is meant
     19 /*	to be passed as a call-back to attr_scan(), thusly:
     20 /*
     21 /*	... RECV_ATTR_FUNC(dsb_scan, (void *) &dsbuf), ...
     22 /* DIAGNOSTICS
     23 /*	Fatal: out of memory.
     24 /* LICENSE
     25 /* .ad
     26 /* .fi
     27 /*	The Secure Mailer license must be distributed with this software.
     28 /* AUTHOR(S)
     29 /*	Wietse Venema
     30 /*	IBM T.J. Watson Research
     31 /*	P.O. Box 704
     32 /*	Yorktown Heights, NY 10598, USA
     33 /*
     34 /*	Wietse Venema
     35 /*	Google, Inc.
     36 /*	111 8th Avenue
     37 /*	New York, NY 10011, USA
     38 /*--*/
     39 
     40 /* System library. */
     41 
     42 #include <sys_defs.h>
     43 
     44 /* Utility library. */
     45 
     46 #include <attr.h>
     47 
     48 /* Global library. */
     49 
     50 #include <mail_proto.h>
     51 #include <dsb_scan.h>
     52 
     53 /* dsb_scan - read DSN_BUF from stream */
     54 
     55 int     dsb_scan(ATTR_SCAN_COMMON_FN scan_fn, VSTREAM *fp,
     56 		         int flags, void *ptr)
     57 {
     58     DSN_BUF *dsb = (DSN_BUF *) ptr;
     59     int     ret;
     60 
     61     /*
     62      * The attribute order is determined by backwards compatibility. It can
     63      * be sanitized after all the ad-hoc DSN read/write code is replaced.
     64      */
     65     ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
     66 		  RECV_ATTR_STR(MAIL_ATTR_DSN_STATUS, dsb->status),
     67 		  RECV_ATTR_STR(MAIL_ATTR_DSN_DTYPE, dsb->dtype),
     68 		  RECV_ATTR_STR(MAIL_ATTR_DSN_DTEXT, dsb->dtext),
     69 		  RECV_ATTR_STR(MAIL_ATTR_DSN_MTYPE, dsb->mtype),
     70 		  RECV_ATTR_STR(MAIL_ATTR_DSN_MNAME, dsb->mname),
     71 		  RECV_ATTR_STR(MAIL_ATTR_DSN_ACTION, dsb->action),
     72 		  RECV_ATTR_STR(MAIL_ATTR_WHY, dsb->reason),
     73 		  ATTR_TYPE_END);
     74     return (ret == 7 ? 1 : -1);
     75 }
     76