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libssh2: cleaning up

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Tim Biermann 2022-05-27 13:52:51 +02:00
parent 83e086d19d
commit db7c22c94c
1 changed files with 0 additions and 72 deletions
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libssh2/1c6fa92b77e34d089493fe6d3e2c6c8775858b94.patch
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@ -1,72 +0,0 @@
From 1c6fa92b77e34d089493fe6d3e2c6c8775858b94 Mon Sep 17 00:00:00 2001
From: Will Cosgrove <will@panic.com>
Date: Thu, 29 Aug 2019 15:24:22 -0700
Subject: [PATCH] fixed type issue, updated SSH_MSG_DISCONNECT
SSH_MSG_DISCONNECT now also uses _libssh2_get API.
---
src/packet.c | 40 +++++++++++++++-------------------------
1 file changed, 15 insertions(+), 25 deletions(-)
diff --git a/src/packet.c b/src/packet.c
index 8908b2c5ad..97f0cdd4b9 100644
--- a/src/packet.c
+++ b/src/packet.c
@@ -419,8 +419,8 @@ _libssh2_packet_add(LIBSSH2_SESSION * session, unsigned char *data,
size_t datalen, int macstate)
{
int rc = 0;
- char *message = NULL;
- char *language = NULL;
+ unsigned char *message = NULL;
+ unsigned char *language = NULL;
size_t message_len = 0;
size_t language_len = 0;
LIBSSH2_CHANNEL *channelp = NULL;
@@ -472,33 +472,23 @@ _libssh2_packet_add(LIBSSH2_SESSION * session, unsigned char *data,
case SSH_MSG_DISCONNECT:
if(datalen >= 5) {
- size_t reason = _libssh2_ntohu32(data + 1);
+ uint32_t reason = 0;
+ struct string_buf buf;
+ buf.data = (unsigned char *)data;
+ buf.dataptr = buf.data;
+ buf.len = datalen;
+ buf.dataptr++; /* advance past type */
- if(datalen >= 9) {
- message_len = _libssh2_ntohu32(data + 5);
+ _libssh2_get_u32(&buf, &reason);
+ _libssh2_get_string(&buf, &message, &message_len);
+ _libssh2_get_string(&buf, &language, &language_len);
- if(message_len < datalen-13) {
- /* 9 = packet_type(1) + reason(4) + message_len(4) */
- message = (char *) data + 9;
-
- language_len =
- _libssh2_ntohu32(data + 9 + message_len);
- language = (char *) data + 9 + message_len + 4;
-
- if(language_len > (datalen-13-message_len)) {
- /* bad input, clear info */
- language = message = NULL;
- language_len = message_len = 0;
- }
- }
- else
- /* bad size, clear it */
- message_len = 0;
- }
if(session->ssh_msg_disconnect) {
- LIBSSH2_DISCONNECT(session, reason, message,
- message_len, language, language_len);
+ LIBSSH2_DISCONNECT(session, reason, (const char *)message,
+ message_len, (const char *)language,
+ language_len);
}
+
_libssh2_debug(session, LIBSSH2_TRACE_TRANS,
"Disconnect(%d): %s(%s)", reason,
message, language);