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
|
/*
* 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_parse.c 2.1 2.1 3/18/91";
#endif not lint
#include <stdio.h>
#include <sys/types.h>
#include <ctype.h>
#include "popper.h"
/*
* parse: Parse a raw input line from a POP client
* into null-delimited tokens
*/
pop_parse(p,buf)
POP * p;
char * buf; /* Pointer to a message containing
the line from the client */
{
char * mp;
register int i;
/* Loop through the POP command array */
for (mp = buf, i = 0; ; i++) {
/* Skip leading spaces and tabs in the message */
while (isspace(*mp))mp++;
/* Are we at the end of the message? */
if (*mp == 0) break;
/* Have we already obtained the maximum allowable parameters? */
if (i >= MAXPARMCOUNT) {
pop_msg(p,POP_FAILURE,"Too many arguments supplied.");
return(-1);
}
/* Point to the start of the token */
p->pop_parm[i] = mp;
/* Search for the first space character (end of the token) */
while (!isspace(*mp) && *mp) mp++;
/* Delimit the token with a null */
if (*mp) *mp++ = 0;
if (i == 0) {
/* Convert the first token (POP command) to lower case */
pop_lower(p->pop_command);
/*
* This is kinda gross. Passwords have to be parsed diffrently
* as they may contain spaces. If you think of a cleaner way,
* do it. The "p->pop_command[0] == 'p'" is so save a call to
* strcmp() on ever call to pop_parse(); This parsing keeps
* leading and trailing speces behind for the password command.
*/
if(p->pop_command[0] == 'p' && strcmp(p->pop_command,"pass") == 0) {
if (*mp != 0) {
p->pop_parm[1] = mp;
if (strlen(mp) > 0) {
mp = mp + strlen(mp) - 1;
while (*mp == 0xa || *mp == 0xd) *mp-- = 0;
}
return(1);
} else
return (-1);
}
}
}
/* Were any parameters passed at all? */
if (i == 0) return (-1);
/* Return the number of tokens extracted minus the command itself */
return (i-1);
}
|
