1 /* $NetBSD: smtputf8.c,v 1.3 2025/02/25 19:15:46 christos Exp $ */
2
3 /*++
4 /* NAME
5 /* smtputf8 3
6 /* SUMMARY
7 /* SMTPUTF8 support
8 /* SYNOPSIS
9 /* #include <smtputf8.h>
10 /*
11 /* int smtputf8_autodetect(class)
12 /* int class;
13 /* DESCRIPTION
14 /* smtputf8_autodetect() determines whether the cleanup server
15 /* should perform SMTPUTF8 detection, depending on the declared
16 /* source class and the setting of the smtputf8_autodetect_classes
17 /* configuration parameter.
18 /*
19 /* Specify one of the following:
20 /* .IP MAIL_SRC_MASK_SENDMAIL
21 /* Submission with the Postfix sendmail(1) command.
22 /* .IP MAIL_SRC_MASK_SMTPD
23 /* Mail received with the smtpd(8) daemon.
24 /* .IP MAIL_SRC_MASK_QMQPD
25 /* Mail received with the qmqpd(8) daemon.
26 /* .IP MAIL_SRC_MASK_FORWARD
27 /* Local forwarding or aliasing.
28 /* .IP MAIL_SRC_MASK_BOUNCE
29 /* Submission by the bounce(8) daemon.
30 /* .IP MAIL_SRC_MASK_NOTIFY
31 /* Postmaster notification from the smtp(8) or smtpd(8) daemon.
32 /* .IP MAIL_SRC_MASK_VERIFY
33 /* Address verification probe.
34 /* DIAGNOSTICS
35 /* Panic: no valid class argument.
36 /*
37 /* Specify one of the following:
38 /* Warning: the smtputf8_autodetect_classes parameter specifies
39 /* an invalid source category name.
40 /* LICENSE
41 /* .ad
42 /* .fi
43 /* The Secure Mailer license must be distributed with this software.
44 /* AUTHOR(S)
45 /* Wietse Venema
46 /* IBM T.J. Watson Research
47 /* P.O. Box 704
48 /* Yorktown Heights, NY 10598, USA
49 /*--*/
50
51 /* System library. */
52
53 #include <sys_defs.h>
54
55 /* Utility library. */
56
57 #include <name_mask.h>
58 #include <msg.h>
59
60 /* Global library. */
61
62 #include <mail_params.h>
63 #include <cleanup_user.h>
64 #include <mail_proto.h>
65 #include <smtputf8.h>
66
67 /* smtputf8_autodetect - enable SMTPUTF8 autodetection */
68
smtputf8_autodetect(int class)69 int smtputf8_autodetect(int class)
70 {
71 static const char myname[] = "smtputf8_autodetect";
72 static const NAME_MASK table[] = {
73 MAIL_SRC_NAME_SENDMAIL, MAIL_SRC_MASK_SENDMAIL,
74 MAIL_SRC_NAME_SMTPD, MAIL_SRC_MASK_SMTPD,
75 MAIL_SRC_NAME_QMQPD, MAIL_SRC_MASK_QMQPD,
76 MAIL_SRC_NAME_FORWARD, MAIL_SRC_MASK_FORWARD,
77 MAIL_SRC_NAME_BOUNCE, MAIL_SRC_MASK_BOUNCE,
78 MAIL_SRC_NAME_NOTIFY, MAIL_SRC_MASK_NOTIFY,
79 MAIL_SRC_NAME_VERIFY, MAIL_SRC_MASK_VERIFY,
80 MAIL_SRC_NAME_ALL, MAIL_SRC_MASK_ALL,
81 0,
82 };
83 int autodetect_classes = 0;
84
85 if (class == 0 || (class & ~MAIL_SRC_MASK_ALL) != 0)
86 msg_panic("%s: bad source class: %d", myname, class);
87 if (*var_smtputf8_autoclass) {
88 autodetect_classes =
89 name_mask(VAR_SMTPUTF8_AUTOCLASS, table, var_smtputf8_autoclass);
90 if (autodetect_classes == 0)
91 msg_warn("%s: bad input: %s", VAR_SMTPUTF8_AUTOCLASS,
92 var_smtputf8_autoclass);
93 if (autodetect_classes & class)
94 return (CLEANUP_FLAG_AUTOUTF8);
95 }
96 return (0);
97 }
98