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SFTP: set a generic error when no SFTP one exists...

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... as otherwise we could get a 0 which would count as no error and we'd
wrongly continue and could end up segfaulting.

Bug: https://curl.haxx.se/mail/lib-2016-06/0052.html
Reported-by: 暖和的和暖
This commit is contained in:
Daniel Stenberg 2016-06-28 15:28:04 +02:00
parent 614b503423
commit b6ddc0ac07
1 changed files with 7 additions and 2 deletions
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9
lib/ssh.c
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@ -1161,8 +1161,13 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
else {
/* Return the error type */
err = sftp_libssh2_last_error(sshc->sftp_session);
result = sftp_libssh2_error_to_CURLE(err);
sshc->actualcode = result?result:CURLE_SSH;
if(err)
result = sftp_libssh2_error_to_CURLE(err);
else
/* in this case, the error wasn't in the SFTP level but for example
a time-out or similar */
result = CURLE_SSH;
sshc->actualcode = result;
DEBUGF(infof(data, "error = %d makes libcurl = %d\n",
err, (int)result));
state(conn, SSH_STOP);