diff options
| -rw-r--r-- | block/curl.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/block/curl.c b/block/curl.c index 426fb4d674..571f24cac2 100644 --- a/block/curl.c +++ b/block/curl.c @@ -675,11 +675,28 @@ static int curl_open(BlockDriverState *bs, QDict *options, int flags, curl_easy_setopt(state->curl, CURLOPT_HEADERDATA, s); if (curl_easy_perform(state->curl)) goto out; - curl_easy_getinfo(state->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d); - if (d) - s->len = (size_t)d; - else if(!s->len) + if (curl_easy_getinfo(state->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d)) { goto out; + } + /* Prior CURL 7.19.4 return value of 0 could mean that the file size is not + * know or the size is zero. From 7.19.4 CURL returns -1 if size is not + * known and zero if it is realy zero-length file. */ +#if LIBCURL_VERSION_NUM >= 0x071304 + if (d < 0) { + pstrcpy(state->errmsg, CURL_ERROR_SIZE, + "Server didn't report file size."); + goto out; + } +#else + if (d <= 0) { + pstrcpy(state->errmsg, CURL_ERROR_SIZE, + "Unknown file size or zero-length file."); + goto out; + } +#endif + + s->len = (size_t)d; + if ((!strncasecmp(s->url, "http://", strlen("http://")) || !strncasecmp(s->url, "https://", strlen("https://"))) && !s->accept_range) { |