diff options
Diffstat (limited to 'docs/libcurl/curl_easy_setopt.3')
| -rw-r--r-- | docs/libcurl/curl_easy_setopt.3 | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/docs/libcurl/curl_easy_setopt.3 b/docs/libcurl/curl_easy_setopt.3 index 0c93e7fa4..06e3a11b9 100644 --- a/docs/libcurl/curl_easy_setopt.3 +++ b/docs/libcurl/curl_easy_setopt.3 @@ -189,8 +189,11 @@ uploaded bytes with the normal read function/callback). It is also called to rewind a stream when doing a HTTP PUT or POST with a multi-pass authentication method. The function shall work like "fseek" or "lseek" and accepted SEEK_SET, SEEK_CUR and SEEK_END as argument for origin, although (in 7.18.0) libcurl -only passes SEEK_SET. The callback must return 0 on success as returning -something else will cause the upload operation to fail. +only passes SEEK_SET. The callback must return 0 (CURL_SEEKFUNC_OK) on +success, 1 (CURL_SEEKFUNC_FAIL) to cause the upload operation to fail or 2 +(CURL_SEEKFUNC_CANTSEEK) to indicate that while the seek failed, libcurl is +free to work around the problem if possible. The latter can sometimes be done +by instead reading from the input or similar. If you forward the input arguments directly to "fseek" or "lseek", note that the data type for \fIoffset\fP is not the same as defined for curl_off_t on |