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SFTP: gracefully handle shutdown early

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When using the multi interface and a handle using SFTP was removed very
early on, we would get a segfault due to the code assumed data was there
that hadn't yet been setup.

Bug: http://curl.haxx.se/mail/lib-2011-03/0066.html
Reported by: Saqib Ali
This commit is contained in:
Daniel Stenberg 2011-03-13 00:15:59 +01:00
parent c042340b2a
commit 60172a0446
1 changed files with 8 additions and 4 deletions
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12
lib/ssh.c
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@ -2047,8 +2047,10 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
}
sshc->sftp_handle = NULL;
}
Curl_safefree(sftp_scp->path);
sftp_scp->path = NULL;
if(sftp_scp) {
Curl_safefree(sftp_scp->path);
sftp_scp->path = NULL;
}
DEBUGF(infof(data, "SFTP DONE done\n"));
#if 0 /* PREV */
@ -2752,8 +2754,10 @@ static CURLcode ssh_done(struct connectdata *conn, CURLcode status)
else
result = status;
Curl_safefree(sftp_scp->path);
sftp_scp->path = NULL;
if(sftp_scp) {
Curl_safefree(sftp_scp->path);
sftp_scp->path = NULL;
}
Curl_pgrsDone(conn);
conn->data->req.keepon = 0; /* clear all bits */