1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*++
/* NAME
/* rcpt_buf
/* SUMMARY
/* recipient buffer manager
/* SYNOPSIS
/* #include <rcpt_buf.h>
/*
/* typedef struct {
/* RECIPIENT rcpt; /* convenience */
/* .in +4
/* VSTRING *address; /* final recipient */
/* VSTRING *orig_addr; /* original recipient */
/* VSTRING *dsn_orcpt; /* dsn original recipient */
/* int dsn_notify; /* DSN notify flags */
/* long offset; /* REC_TYPE_RCPT byte */
/* .in -4
/* } RCPT_BUF;
/*
/* RECIPIENT *RECIPIENT_FROM_RCPT_BUF(rcpb)
/* RCPT_BUF *rcpb;
/*
/* RCPT_BUF *rcpb_create(void)
/*
/* void rcpb_reset(rcpb)
/* RCPT_BUF *rcpb;
/*
/* void rcpb_free(rcpb)
/* RCPT_BUF *rcpb;
/*
/* int rcpb_scan(scan_fn, stream, flags, ptr)
/* ATTR_SCAN_COMMON_FN scan_fn;
/* VSTREAM *stream;
/* int flags;
/* void *ptr;
/* DESCRIPTION
/* RECIPIENT_FROM_RCPT_BUF() populates the rcpt member with
/* a shallow copy of the contents of the other fields.
/*
/* rcpb_scan() reads a recipient buffer from the named stream
/* using the specified attribute scan routine. rcpb_scan()
/* is meant to be passed as a call-back to attr_scan(), thusly:
/*
/* ... ATTR_TYPE_FUNC, rcpb_scan, (void *) rcpt_buf, ...
/*
/* rcpb_create(), rcpb_reset() and rcpb_free() create, wipe
/* and destroy recipient buffer instances.
/* DIAGNOSTICS
/* Fatal: out of memory.
/* 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
/*--*/
/* System library. */
#include <sys_defs.h>
/* Utility library. */
#include <mymalloc.h>
#include <vstring.h>
#include <vstream.h>
/* Global library. */
#include <mail_proto.h>
#include <rcpt_buf.h>
/* Application-specific. */
/* rcpb_create - create recipient buffer */
RCPT_BUF *rcpb_create(void)
{
RCPT_BUF *rcpt;
rcpt = (RCPT_BUF *) mymalloc(sizeof(*rcpt));
rcpt->offset = 0;
rcpt->dsn_orcpt = vstring_alloc(10);
rcpt->dsn_notify = 0;
rcpt->orig_addr = vstring_alloc(10);
rcpt->address = vstring_alloc(10);
return (rcpt);
}
/* rcpb_reset - reset recipient buffer */
void rcpb_reset(RCPT_BUF *rcpt)
{
#define BUF_TRUNCATE(s) (vstring_str(s)[0] = 0)
rcpt->offset = 0;
BUF_TRUNCATE(rcpt->dsn_orcpt);
rcpt->dsn_notify = 0;
BUF_TRUNCATE(rcpt->orig_addr);
BUF_TRUNCATE(rcpt->address);
}
/* rcpb_free - destroy recipient buffer */
void rcpb_free(RCPT_BUF *rcpt)
{
vstring_free(rcpt->dsn_orcpt);
vstring_free(rcpt->orig_addr);
vstring_free(rcpt->address);
myfree((void *) rcpt);
}
/* rcpb_scan - receive recipient buffer */
int rcpb_scan(ATTR_SCAN_COMMON_FN scan_fn, VSTREAM *fp,
int flags, void *ptr)
{
RCPT_BUF *rcpt = (RCPT_BUF *) ptr;
int ret;
/*
* The order of attributes is determined by historical compatibility and
* can be fixed after all the ad-hoc read/write code is replaced.
*/
ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
RECV_ATTR_STR(MAIL_ATTR_ORCPT, rcpt->orig_addr),
RECV_ATTR_STR(MAIL_ATTR_RECIP, rcpt->address),
RECV_ATTR_LONG(MAIL_ATTR_OFFSET, &rcpt->offset),
RECV_ATTR_STR(MAIL_ATTR_DSN_ORCPT, rcpt->dsn_orcpt),
RECV_ATTR_INT(MAIL_ATTR_DSN_NOTIFY, &rcpt->dsn_notify),
ATTR_TYPE_END);
return (ret == 5 ? 1 : -1);
}
|
