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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"
int
decode_smtp(u_char *buf, int len, u_char *obuf, int olen)
{
char *p;
int i, j, login = 0;
obuf[0] = '\0';
for (p = strtok(buf, "\r\n"); p != NULL; p = strtok(NULL, "\r\n")) {
if (login == 1) {
strlcat(obuf, p, olen);
i = base64_pton(p, p, strlen(p));
p[i] = '\0';
j = strlen(obuf);
snprintf(obuf + j, olen - j, " [%s]\n", p);
login = 0;
}
else if (strncmp(p, "AUTH LOGIN ", 11) == 0) {
strlcat(obuf, p, olen);
p += 11;
i = base64_pton(p, p, strlen(p));
p[i] = '\0';
j = strlen(obuf);
snprintf(obuf + j, olen - j, " [%s]\n", p);
login = 1;
}
else if (strncmp(p, "MAIL ", 5) == 0 ||
strncmp(p, "RCPT ", 5) == 0 ||
strncmp(p, "DATA", 4) == 0) {
break;
}
}
return (strlen(obuf));
}
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