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      1 /*	$NetBSD: smtp_misc.c,v 1.2 2020/03/18 19:05:20 christos Exp $	*/
      2 
      3 /*++
      4 /* NAME
      5 /*	smtp_misc 3
      6 /* SUMMARY
      7 /*	SMTP client address rewriting
      8 /* SYNOPSIS
      9 /*	#include <smtp_addr.h>
     10 /*
     11 /*	void	smtp_rewrite_generic_internal(
     12 /*	VSTRING *dst,
     13 /*	const char *src);
     14 /*
     15 /*	void	smtp_quote_822_address_flags(
     16 /*	VSTRING *dst,
     17 /*	const char *src,
     18 /*	int flags);
     19 /*
     20 /*	void	smtp_quote_821_address(
     21 /*	VSTRING *dst,
     22 /*	const char *src);
     23 /* DESCRIPTION
     24 /*	smtp_rewrite_generic_internal() rewrites a non-empty address
     25 /*	if generic mapping is enabled, otherwise copies it literally.
     26 /*
     27 /*	smtp_quote_822_address_flags() is a wrapper around
     28 /*	quote_822_local_flags(), except for the empty address which
     29 /*	is copied literally.
     30 /*
     31 /*	smtp_quote_821_address() is a wrapper around quote_821_local(),
     32 /*	except for the empty address or with "smtp_quote_rfc821_envelope
     33 /*	= no"; in those cases the address is copied literally.
     34 /* DIAGNOSTICS
     35 /*	Fatal: out of memory.
     36 /* LICENSE
     37 /* .ad
     38 /* .fi
     39 /*	The Secure Mailer license must be distributed with this software.
     40 /* AUTHOR(S)
     41 /*	Wietse Venema
     42 /*	Google, Inc.
     43 /*	111 8th Avenue
     44 /*	New York, NY 10011, USA
     45 /*--*/
     46 
     47  /*
     48   * System library.
     49   */
     50 #include <sys_defs.h>
     51 
     52  /*
     53   * Utility library.
     54   */
     55 #include <vstring.h>
     56 
     57  /*
     58   * Global library.
     59   */
     60 #include <ext_prop.h>
     61 #include <mail_params.h>
     62 #include <quote_821_local.h>
     63 #include <quote_822_local.h>
     64 
     65  /*
     66   * Application-specific.
     67   */
     68 #include <smtp.h>
     69 
     70 /* smtp_rewrite_generic_internal - generic non-empty address rewriting */
     71 
     72 void    smtp_rewrite_generic_internal(VSTRING *dst, const char *src)
     73 {
     74     vstring_strcpy(dst, src);
     75     if (*src && smtp_generic_maps)
     76 	smtp_map11_internal(dst, smtp_generic_maps,
     77 			    smtp_ext_prop_mask & EXT_PROP_GENERIC);
     78 }
     79 
     80 /* smtp_quote_822_address_flags - quote non-empty header address */
     81 
     82 void    smtp_quote_822_address_flags(VSTRING *dst, const char *src, int flags)
     83 {
     84     if (*src) {
     85 	quote_822_local_flags(dst, src, flags);
     86     } else if (flags & QUOTE_FLAG_APPEND) {
     87 	vstring_strcat(dst, src);
     88     } else {
     89 	vstring_strcpy(dst, src);
     90     }
     91 }
     92 
     93 /* smtp_quote_821_address - quote non-empty envelope address */
     94 
     95 void    smtp_quote_821_address(VSTRING *dst, const char *src)
     96 {
     97     if (*src && var_smtp_quote_821_env) {
     98 	quote_821_local(dst, src);
     99     } else {
    100 	vstring_strcpy(dst, src);
    101     }
    102 }
    103