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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
These paths translate From_ lines into Return-Path: in unix style mailboxes.
If the mailbox is in MMDF format, it does nothing (since MMDF has already
done the Return-Path: translation while writing the message out.
WARNING: Do not merge these patches in with other patch files.
Keep them separate (Andrey, I mean you).
-- Paul Traina
17-Feb-1997
With old variant of this patch message size was counted incorrectly,
"rpath" variable can be referenced without initialization, second
Return-Path not skipped, fixed now.
-- Andrey Chernov
8-Oct-1997
This patch hits again: wrong mbox size calculation and Return-Path was never
writted out
-- Andrey Chernov
30-Jun-1998
*** pop_dropcopy.c.orig Thu Nov 20 00:20:38 1997
--- pop_dropcopy.c Tue Jun 30 10:19:40 1998
***************
*** 155,160 ****
--- 155,191 ----
return(ti != 0);
}
+ char *
+ return_path (const char *unixfrom)
+ {
+ static char tmpbuf[MAXLINELEN];
+ int fromlen = sizeof("From ") - 1;
+ const char *fp, *hp, *cp, *ep;
+
+ /* if it doesn't start with a From_, it's not */
+ if (strncmp(unixfrom, "From ", fromlen))
+ return NULL;
+
+ fp = unixfrom + fromlen;
+ hp = cp = strchr(fp, ' ');
+ while (hp = strchr(++hp, 'r'))
+ if (!strncmp(hp, "remote from", sizeof("remote from") - 1)) {
+ hp = strrchr(hp, ' ');
+ break;
+ }
+
+ if (hp) {
+ ep = strrchr(++hp, '\n');
+ snprintf(tmpbuf, sizeof(tmpbuf)-2, "Return-Path: %.*s!%.*s",
+ ep - hp, hp,
+ cp - fp, fp);
+ } else
+ snprintf(tmpbuf, sizeof(tmpbuf)-2, "Return-Path: %.*s",
+ cp - fp, fp);
+ strcat(tmpbuf, "\n");
+ return tmpbuf;
+ }
+
/* Hashing to a spool directory helps reduce the lookup time for sites
* with thousands of mail spool files. Unix uses a linear list to
* save directory information and the following methods attempt to
***************
*** 279,284 ****
--- 310,316 ----
char buffer[MAXLINELEN]; /* Read buffer */
MD5_CTX mdContext;
unsigned char digest[16];
+ char *rpath = NULL;
#ifdef DEBUG
if(p->debug)
***************
*** 343,348 ****
--- 375,383 ----
(p->mmdf_separator ? !strcmp(p->mmdf_separator, buffer) :
isfromline(buffer))) {
+ if (!p->mmdf_separator)
+ rpath = return_path(buffer);
+
if (expecting_trailer) {
/* skip over the MMDF trailer */
expecting_trailer = 0;
***************
*** 388,393 ****
--- 423,435 ----
mp->retr_flag = FALSE;
mp->orig_retr_state = FALSE;
mp->uidl_str = "\n";
+ mp->return_path = rpath ? strdup(rpath) : NULL;
+ if (rpath) {
+ int i = strlen(rpath) + 1;
+ mp->length += i;
+ p->drop_size += i;
+ mp->lines++;
+ }
#ifdef DEBUG
if(p->debug)
pop_log(p,POP_DEBUG, "Msg %d being added to list", mp->number);
***************
*** 466,471 ****
--- 508,515 ----
mp->retr_flag = TRUE;
mp->orig_retr_state = TRUE;
}
+ } else if (rpath && (strncasecmp(buffer,"Return-Path:",12) == 0)) {
+ continue;
}
} else {
content_nchar += nchar;
***************
*** 505,510 ****
--- 549,555 ----
int content_length, content_nchar, cont_len;
MD5_CTX mdContext;
unsigned char digest[16];
+ char *rpath = NULL;
FILE *mail_drop; /* Streams for fids */
***************
*** 577,582 ****
--- 622,630 ----
(p->mmdf_separator ? !strcmp(p->mmdf_separator, buffer) :
isfromline(buffer))) {
+ if (!p->mmdf_separator)
+ rpath = return_path(buffer);
+
if (expecting_trailer) {
expecting_trailer = 0;
continue;
***************
*** 622,628 ****
mp->retr_flag = FALSE;
mp->orig_retr_state = FALSE;
mp->uidl_str = "\n";
!
#ifdef DEBUG
if(p->debug)
pop_log(p,POP_DEBUG, "Msg %d being added to list", mp->number);
--- 670,682 ----
mp->retr_flag = FALSE;
mp->orig_retr_state = FALSE;
mp->uidl_str = "\n";
! mp->return_path = rpath ? strdup(rpath) : NULL;
! if (rpath) {
! int i = strlen(rpath) + 1;
! mp->length += i;
! p->drop_size += i;
! mp->lines++;
! }
#ifdef DEBUG
if(p->debug)
pop_log(p,POP_DEBUG, "Msg %d being added to list", mp->number);
***************
*** 705,710 ****
--- 759,766 ----
mp->retr_flag = TRUE;
mp->orig_retr_state = TRUE;
}
+ } else if (rpath && (strncasecmp(buffer,"Return-Path:",12) == 0)) {
+ continue;
}
} else {
content_nchar += nchar;
--- popper.h Mon Feb 17 13:15:44 1997
+++ popper.h Mon Feb 17 13:35:48 1997
@@ -260,6 +263,8 @@
Used for RSET cmd. */
char *uidl_str; /* Cache of the UIDL str for
faster access */
+ char *return_path; /* Cache of the rpath str for
+ faster access */
} MsgInfoList;
typedef struct { /* POP parameter block */
*** pop_send.c.old Thu Nov 20 00:20:38 1997
--- pop_send.c Tue Jun 30 10:06:23 1998
***************
*** 38,43 ****
--- 38,44 ----
register int msg_num;
register int msg_lines;
register int uidl_sent = 0;
+ register int rpath_sent = 0;
char buffer[MAXMSGLINELEN];
/* Convert the first parameter into an integer */
***************
*** 86,91 ****
--- 87,93 ----
/* Send the header of the message followed by a blank line */
while (fgets(buffer, MAXMSGLINELEN, p->drop)) {
if (!strncasecmp(buffer, "Content-Length:", 15) ||
+ (mp->return_path && !strncasecmp(buffer,"Return-Path:",12)) ||
!strncasecmp(buffer, "X-UIDL:", 7)) { /* Skip UIDLs */
continue; /* Content-Length is MTA dependent, don't send to MUA */
}
***************
*** 96,101 ****
--- 98,109 ----
sprintf(uidl_buf, "%s %s", "X-UIDL:", mp->uidl_str);
pop_sendline(p, uidl_buf);
uidl_sent++;
+ }
+ if (mp->return_path && !rpath_sent && (*buffer=='\n' ||
+ !strncasecmp(buffer,"Status:",7) ||
+ !strncasecmp(buffer,"Received:",9))) {
+ pop_sendline(p, mp->return_path);
+ rpath_sent++;
}
pop_sendline(p, buffer);
|
