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lib: xfer_setup and non-blocking shutdown

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- clarify Curl_xfer_setup() with RECV/SEND flags and different calls for
  which socket they operate on. Add a shutdown flag for secondary
  sockets
- change Curl_xfer_setup() calls to new functions
- implement non-blocking connection shutdown at the end of receiving or
  sending a transfer

Closes #13913
This commit is contained in:
Stefan Eissing 2024-06-10 13:32:13 +02:00 • committed by Daniel Stenberg
parent 61b465208f
commit 385c62aabc
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GPG key ID: 5CC908FDB71E12C2
30 changed files with 301 additions and 124 deletions
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12
lib/vssh/libssh.c
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@ -1350,7 +1350,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block)
Curl_pgrsSetUploadSize(data, data->state.infilesize);
}
/* upload data */
Curl_xfer_setup(data, -1, -1, FALSE, FIRSTSOCKET);
Curl_xfer_setup1(data, CURL_XFER_SEND, -1, FALSE);
/* not set by Curl_xfer_setup to preserve keepon bits */
conn->sockfd = conn->writesockfd;
@ -1576,7 +1576,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block)
sshc->sftp_dir = NULL;
/* no data to transfer */
Curl_xfer_setup(data, -1, -1, FALSE, -1);
Curl_xfer_setup_nop(data);
state(data, SSH_STOP);
break;
@ -1721,12 +1721,12 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block)
/* Setup the actual download */
if(data->req.size == 0) {
/* no data to transfer */
Curl_xfer_setup(data, -1, -1, FALSE, -1);
Curl_xfer_setup_nop(data);
infof(data, "File already completely downloaded");
state(data, SSH_STOP);
break;
}
Curl_xfer_setup(data, FIRSTSOCKET, data->req.size, FALSE, -1);
Curl_xfer_setup1(data, CURL_XFER_RECV, data->req.size, FALSE);
/* not set by Curl_xfer_setup to preserve keepon bits */
conn->writesockfd = conn->sockfd;
@ -1850,7 +1850,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block)
}
/* upload data */
Curl_xfer_setup(data, -1, data->req.size, FALSE, FIRSTSOCKET);
Curl_xfer_setup1(data, CURL_XFER_SEND, -1, FALSE);
/* not set by Curl_xfer_setup to preserve keepon bits */
conn->sockfd = conn->writesockfd;
@ -1894,7 +1894,7 @@ static CURLcode myssh_statemach_act(struct Curl_easy *data, bool *block)
/* download data */
bytecount = ssh_scp_request_get_size(sshc->scp_session);
data->req.maxdownload = (curl_off_t) bytecount;
Curl_xfer_setup(data, FIRSTSOCKET, bytecount, FALSE, -1);
Curl_xfer_setup1(data, CURL_XFER_RECV, bytecount, FALSE);
/* not set by Curl_xfer_setup to preserve keepon bits */
conn->writesockfd = conn->sockfd;