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
|
/*
* Copyright (c) 1989 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef lint
static char copyright[] = "Copyright (c) 1990 Regents of the University of California.\nAll rights reserved.\n";
static char SccsId[] = "@(#)pop_send.c 2.1 3/18/91";
#endif
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_STRINGS_H
#include <strings.h>
#else
#include <string.h>
#endif
#include "popper.h"
/*
* send: Send the header and a specified number of lines
* from a mail message to a POP client.
*/
pop_send(p)
POP * p;
{
MsgInfoList * mp; /* Pointer to message info list */
register int msg_num;
register int msg_lines;
char buffer[MAXMSGLINELEN];
/* Convert the first parameter into an integer */
msg_num = atoi(p->pop_parm[1]);
/* Is requested message out of range? */
if ((msg_num < 1) || (msg_num > p->msg_count))
return (pop_msg (p,POP_FAILURE,"Message %d does not exist.",msg_num));
/* Get a pointer to the message in the message list */
mp = &p->mlp[msg_num-1];
/* Is the message flagged for deletion? */
if (mp->del_flag)
return (pop_msg (p,POP_FAILURE,
"Message %d has been deleted.",msg_num));
/* If this is a TOP command, get the number of lines to send */
if (strcmp(p->pop_command,"top") == 0) {
/* Convert the second parameter into an integer */
msg_lines = atoi(p->pop_parm[2]);
}
else {
/* Assume that a RETR (retrieve) command was issued */
msg_lines = -1;
/* Flag the message as retreived */
mp->retr_flag = TRUE;
}
/* Display the number of bytes in the message */
pop_msg(p,POP_SUCCESS,"%u octets",mp->length);
/* Position to the start of the message */
(void)fseek(p->drop,mp->offset,0);
/* Skip the first line (the sendmail "From" line) */
(void)fgets (buffer,MAXMSGLINELEN,p->drop);
/* Send the header of the message followed by a blank line */
while (fgets(buffer,MAXMSGLINELEN,p->drop)) {
pop_sendline (p,buffer);
/* A single newline (blank line) signals the
end of the header. sendline() converts this to a NULL,
so that's what we look for. */
if (*buffer == 0) break;
}
/* Send the message body */
while (fgets(buffer,MAXMSGLINELEN,p->drop)) {
/* Look for the start of the next message */
#ifdef MMDF
if (is_msg_boundary(buffer)) break;
#else
if (strncmp(buffer,"From ",5) == 0) break;
#endif
/* Decrement the lines sent (for a TOP command) */
if (msg_lines >= 0 && msg_lines-- == 0) break;
pop_sendline(p,buffer);
}
/* "." signals the end of a multi-line transmission */
(void)fputs(".\r\n",p->output);
(void)fflush(p->output);
return(POP_SUCCESS);
}
/*
* sendline: Send a line of a multi-line response to a client.
*/
pop_sendline(p,buffer)
POP * p;
char * buffer;
{
char * bp;
/* Byte stuff lines that begin with the temirnation octet */
if (*buffer == POP_TERMINATE) (void)fputc(POP_TERMINATE,p->output);
/* Look for a <NL> in the buffer */
if (bp = index(buffer,NEWLINE)) *bp = 0;
/* Send the line to the client */
(void)fputs(buffer,p->output);
#ifdef DEBUG
if(p->debug)pop_log(p,POP_DEBUG,"Sending line \"%s\"",buffer);
#endif DEBUG
/* Put a <CR><NL> if a newline was removed from the buffer */
if (bp) (void)fputs ("\r\n",p->output);
}
|
