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author | Kwon-Young Choi <kwon-young.choi@hotmail.fr> | 2020-04-04 17:27:18 +0200 |
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committer | Daniel Stenberg <daniel@haxx.se> | 2020-04-05 00:18:55 +0200 |
commit | eb65e862cb9758b1f6e19442889e756e39fec85f (patch) | |
tree | 5542490a6407098bb0be2fa3a4a37cf9bbf5b6dc | |
parent | 23a870f2fd041278762ecf819cd1467019588c58 (diff) | |
download | curl-eb65e862cb9758b1f6e19442889e756e39fec85f.tar.gz |
Do not write output file if server respond with http code 304
Using the --etag-compare option, we can ask the server to either send
the file if it was updated or respond with a 304 response code to
signify that the file did not change.
This commit recognize this response code and avoid writing the output
file, which avoid truncating a previously downloaded file.
This fix issue #5181.
-rw-r--r-- | lib/getinfo.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/getinfo.c b/lib/getinfo.c index 18274e964..84d9fc1c6 100644 --- a/lib/getinfo.c +++ b/lib/getinfo.c @@ -239,8 +239,11 @@ static CURLcode getinfo_long(struct Curl_easy *data, CURLINFO info, *param_longp = data->info.conn_local_port; break; case CURLINFO_CONDITION_UNMET: - /* return if the condition prevented the document to get transferred */ - *param_longp = data->info.timecond ? 1L : 0L; + if(data->info.httpcode == 304) + *param_longp = 1L; + else + /* return if the condition prevented the document to get transferred */ + *param_longp = data->info.timecond ? 1L : 0L; break; case CURLINFO_RTSP_CLIENT_CSEQ: *param_longp = data->state.rtsp_next_client_CSeq; |