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/*
* decode_nntp.c
*
* Network News Transport Protocol.
*
* Copyright (c) 2000 Felix von Leitner <felix@convergence.de>
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* $Id: decode_nntp.c,v 1.5 2001/03/15 08:33:01 dugsong Exp $
*/
#include "config.h"
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <strlcat.h>
#include "base64.h"
#include "decode.h"
int
decode_nntp(u_char *buf, int len, u_char *obuf, int olen)
{
char *p;
int i, simple, dpa;
obuf[0] = '\0';
simple = dpa = 0;
for (p = strtok(buf, "\r\n"); p != NULL; p = strtok(NULL, "\r\n")) {
if (simple == 1) {
strlcat(obuf, p, olen);
strlcat(obuf, "\n", olen);
simple = 0;
}
else if (strncasecmp(p, "AUTHINFO ", 9) == 0) {
strlcat(obuf, p, olen);
if (strncasecmp(p + 9, "SIMPLE", 6) == 0) {
simple = 1;
}
else if (strncasecmp(p + 9, "GENERIC ", 8) == 0) {
if (strncasecmp(p + 17, "DPA", 3) == 0) {
dpa = 1;
}
else if (dpa == 1) {
p += 17;
i = base64_pton(p, p, strlen(p));
p[i] = '\0';
i = strlen(obuf);
snprintf(obuf + i, olen - i,
" [%s]", p);
}
}
strlcat(obuf, "\n", olen);
}
}
return (strlen(obuf));
}
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