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easy: fix connection ownership in curl_easy_pause

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Before calling Curl_client_chop_write(), change the owner of connection
to the current Curl_easy handle. This will fix the issue #2217.

Fixes https://github.com/curl/curl/issues/2217
Closes https://github.com/curl/curl/pull/2221
This commit is contained in:
Basuke Suzuki 2018-01-05 15:39:07 -08:00 committed by Jay Satiro
parent 89f6804734
commit 2a6dbb8155
1 changed files with 14 additions and 1 deletions
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15
lib/easy.c
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@ -1045,6 +1045,8 @@ CURLcode curl_easy_pause(struct Curl_easy *data, int action)
unsigned int i;
unsigned int count = data->state.tempcount;
struct tempbuf writebuf[3]; /* there can only be three */
struct connectdata *conn = data->easy_conn;
struct Curl_easy *saved_data = NULL;
/* copy the structs to allow for immediate re-pausing */
for(i = 0; i < data->state.tempcount; i++) {
@ -1053,16 +1055,27 @@ CURLcode curl_easy_pause(struct Curl_easy *data, int action)
}
data->state.tempcount = 0;
/* set the connection's current owner */
if(conn->data != data) {
saved_data = conn->data;
conn->data = data;
}
for(i = 0; i < count; i++) {
/* even if one function returns error, this loops through and frees all
buffers */
if(!result)
result = Curl_client_chop_write(data->easy_conn,
result = Curl_client_chop_write(conn,
writebuf[i].type,
writebuf[i].buf,
writebuf[i].len);
free(writebuf[i].buf);
}
/* recover previous owner of the connection */
if(saved_data)
conn->data = saved_data;
if(result)
return result;
}