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32 lines
933 B
32 lines
933 B
10 months ago
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From 35eb2614d86316ba9f5a6806ce64f56680fa1e97 Mon Sep 17 00:00:00 2001
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From: Jakub Jelen <jjelen@redhat.com>
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Date: Tue, 5 Sep 2023 17:33:41 +0200
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Subject: [PATCH] libssh: cap SFTP packet size sent
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Due to libssh limitations
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Signed-off-by: Jakub Jelen <jjelen@redhat.com>
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Closes #11804
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---
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lib/vssh/libssh.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/lib/vssh/libssh.c b/lib/vssh/libssh.c
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index dea0084575859b..7c6a2e53f338fa 100644
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--- a/lib/vssh/libssh.c
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+++ b/lib/vssh/libssh.c
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@@ -2567,6 +2567,12 @@ static ssize_t sftp_send(struct Curl_easy *data, int sockindex,
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struct connectdata *conn = data->conn;
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(void)sockindex;
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+ /* limit the writes to the maximum specified in Section 3 of
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+ * https://datatracker.ietf.org/doc/html/draft-ietf-secsh-filexfer-02
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+ */
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+ if(len > 32768)
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+ len = 32768;
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+
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nwrite = sftp_write(conn->proto.sshc.sftp_file, mem, len);
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myssh_block2waitfor(conn, FALSE);
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