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| author | Dave Reisner <dreisner@archlinux.org> | 2011-08-11 08:19:39 -0400 |
|---|---|---|
| committer | Dan McGee <dan@archlinux.org> | 2011-08-11 11:18:21 -0500 |
| commit | edd9ed6a3bbe0a351fdf09b3d4b33c8d2fd66899 (patch) | |
| tree | f973c4b9cf436137ac793c11811ec202f31bc79a | |
| parent | c4112da8c3c628570d059679abd5bd4c79286184 (diff) | |
| download | pacman-edd9ed6a3bbe0a351fdf09b3d4b33c8d2fd66899.tar.xz | |
stop progress callbacks after curl_easy_perform returns
This prevents possible null dereferences in FTP transfers when the
progress callback is touched during connection teardown.
http://curl.haxx.se/mail/lib-2011-08/0128.html
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
| -rw-r--r-- | lib/libalpm/dload.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c index 4fd744ef..67090845 100644 --- a/lib/libalpm/dload.c +++ b/lib/libalpm/dload.c @@ -302,6 +302,9 @@ static int curl_download_internal(struct dload_payload *payload, /* perform transfer */ handle->curlerr = curl_easy_perform(handle->curl); + /* immediately unhook the progress callback */ + curl_easy_setopt(handle->curl, CURLOPT_NOPROGRESS, 1L); + /* was it a success? */ if(handle->curlerr == CURLE_ABORTED_BY_CALLBACK) { goto cleanup; |