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libssh: cap SFTP packet size sent

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Due to libssh limitations

Signed-off-by: Jakub Jelen <jjelen@redhat.com>

Closes #11804
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Jakub Jelen 2023-09-05 17:33:41 +02:00 committed by Daniel Stenberg
parent cb5ca39874
commit 35eb2614d8
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1 changed files with 6 additions and 0 deletions
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6
lib/vssh/libssh.c
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@ -2567,6 +2567,12 @@ static ssize_t sftp_send(struct Curl_easy *data, int sockindex,
struct connectdata *conn = data->conn;
(void)sockindex;
/* limit the writes to the maximum specified in Section 3 of
* https://datatracker.ietf.org/doc/html/draft-ietf-secsh-filexfer-02
*/
if(len > 32768)
len = 32768;
nwrite = sftp_write(conn->proto.sshc.sftp_file, mem, len);
myssh_block2waitfor(conn, FALSE);