Sprunge this! Sprunge that!

Question

Your task is to create a program or function that creates a paste on sprunge.us. Your program/function must receive the text to sprunge from your language's usual input mechanism, such as standard in; or in the case of a function, it can be a string or whatever makes the most sense to you. Your program will POST the text from input to http://sprunge.us/ as multipart/form-data with the form field name of sprunge. Finally, your program will output/return the URL sent back in the reply from the POST.

This is a code golf, so shortest answer (in bytes) wins.

Here is an example solution using bash and curl taken directly from the sprunge.us website. Feel free to use it in your own golf:

curl -F 'sprunge=<-' http://sprunge.us

Which returns the URL to the paste, which looks like http://sprunge.us/aXZI, where the aXZI is the ID of the sprunge.

This is my first code golfing challenge, please let me know if this is too easy or not creative enough

Answer 1

Bash, 29 25 bytes

curl -F sprunge{=\<-,.us}

Thanks to @Score_Under for providing this awesome solution!

Old solution:

curl -Fsprunge=\<- sprunge.us

Quotes around 'sprunge=<-' are unnecessary, as long as the < is escaped.

EDIT: Interestingly, this alternative way has the exact same length:

a=sprunge
curl -F$a=\<- $a.us

Answer 2

Bash, 30 bytes

curl -F'sprunge=<-' sprunge.us

Just removed the unneeded space in -F 'sprunge=<-' and the http:// from the sprunge.us url. OP gave me explicit permission to golf his reference solution.

Answer 3

HTML, 88 bytes

<form action="http:sprunge.us" method="POST"><textarea></textarea><button type="submit">

To test this easily, prepend data:text/html, to the code and paste it into your address bar (works for me on chrome).

Full (easily) testable code:

data:text/html,<form action="http:sprunge.us" method="POST"><textarea></textarea><button type="submit">