diff options
Diffstat (limited to 'docs/cmdline-opts')
| -rw-r--r-- | docs/cmdline-opts/form.d | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/docs/cmdline-opts/form.d b/docs/cmdline-opts/form.d index 4cc5f5a39..b3251bdb8 100644 --- a/docs/cmdline-opts/form.d +++ b/docs/cmdline-opts/form.d @@ -25,9 +25,12 @@ the form-field to which portrait.jpg will be the input: curl -F profile=@portrait.jpg https://example.com/upload.cgi To read content from stdin instead of a file, use - as the filename. This goes -for both @ and < constructs. For this case, as well as for others in which the -full data size cannot be determined before the transfer starts (as named pipes -or similar), data is transferred as chunks by HTTP and rejected by IMAP. +for both @ and < constructs. If stdin is not attached to a regular file, it is +buffered first to determine its size and allow a possible resend. Defining a +part's data from a named non-regular file (such as a named pipe or similar) is +unfortunately not subject to buffering and will be effectively read at +transmission time; since the full size is unknown before the transfer starts, +data is sent as chunks by HTTP and rejected by IMAP. You can also tell curl what Content-Type to use by using 'type=', in a manner similar to: |