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/*
* decode_smtp.c
*
* Simple Mail Transfer Protocol.
*
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* $Id: decode_smtp.c,v 1.3 2001/03/15 08:33:02 dugsong Exp $
*/
#include "config.h"
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <strlcat.h>
#include "base64.h"
#include "options.h"
#include "decode.h"
extern struct _dc_meta dc_meta;
int
decode_smtp(u_char *buf, int len, u_char *obuf, int olen)
{
char *p, *s;
int i, j, login = 0;
int found = 0;
obuf[0] = '\0';
for (p = strtok(buf, "\r\n"); p != NULL; p = strtok(NULL, "\r\n")) {
if ((strncmp(p, "MAIL ", 5) == 0) || (strncmp(p, "RCPT ", 5) == 0)) {
if (!Opt_verbose)
break;
if (obuf[0] != '\0')
strlcat(obuf, "\n", olen);
strlcat(obuf, p+5, olen);
if (++found >= 2)
break;
continue;
}
if ((strncmp(p, "DATA", 4) == 0) || (strncmp(p, "QUIT", 4) == 0))
break;
if (login == 0) {
if (strncmp(p, "AUTH LOGIN", 10) != 0)
continue;
strlcat(obuf, p, olen);
p += 10;
i = base64_pton(p, p, strlen(p));
if (i > 0) {
p[i] = '\0';
j = strlen(obuf);
snprintf(obuf + j, olen - j, " [%s]", p);
} else {
strlcat(obuf, " ", olen);
login = 1;
}
dc_meta.is_hot = 1;
continue;
}
strlcat(obuf, p, olen);
// USER: <base64>
// PASS: <base64>
// <base64>
if ((s = strchr(p, ' ')) != NULL)
p = ++s;
i = base64_pton(p, p, strlen(p));
if (i > 0) {
p[i] = '\0';
j = strlen(obuf);
snprintf(obuf + j, olen - j, " [%s] ", p);
}
}
return (strlen(obuf));
}
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