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Handle negative reply for NNTP STARTTLS in s_client

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Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2629)
This commit is contained in:
Robert Scheck 2017-02-14 21:47:25 +01:00 committed by Rich Salz
parent a8f9576866
commit af7e05c7c6
1 changed files with 14 additions and 4 deletions
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18
apps/s_client.c
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@ -2218,7 +2218,16 @@ int s_client_main(int argc, char **argv)
"Didn't find STARTTLS in server response,"
" trying anyway...\n");
BIO_printf(sbio, "STARTTLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
if (mbuf_len < 0) {
BIO_printf(bio_err, "BIO_read failed\n");
goto end;
}
mbuf[mbuf_len] = '\0';
if (strstr(mbuf, "382") == NULL) {
BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
goto shut;
}
}
break;
case PROTO_SIEVE:
@ -2252,15 +2261,16 @@ int s_client_main(int argc, char **argv)
if (mbuf_len < 0) {
BIO_printf(bio_err, "BIO_read failed\n");
goto end;
} else if (mbuf_len < 2) {
BIO_printf(bio_err, "Server does not support STARTTLS.\n");
}
mbuf[mbuf_len] = '\0';
if (mbuf_len < 2) {
BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
goto shut;
}
/*
* According to RFC 5804 § 2.2, response codes are case-
* insensitive, make it uppercase but preserve the response.
*/
mbuf[mbuf_len] = '\0';
strncpy(sbuf, mbuf, 2);
make_uppercase(sbuf);
if (strncmp(sbuf, "OK", 2) != 0) {