Sendfile

---

title: "Sendfile" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["data-synchronization"] topic_path: "general/data-synchronization" source: "https://en.wikipedia.org/wiki/Sendfile" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

In computing, sendfile is a command which can be found in a number of contexts relating to data transmission:

• Sendfile (Unix), a push-based asynchronous file transfer, regardless of whether local or remote, using the Simple Asynchronous File Transfer (SAFT), an Internet protocol bound to TCP port 487
• Sendfile (IBM VM), a command to transfer a file asynchronously from one VM/CMS user to another, regardless of whether local or remote
• Sendfile (system call), a system call.
• As a command within an Instant messaging application.

Notes

References

1. Ulli Horlacher. (2008-05-01). "SAFT / sendfile".
2. {{man. 2. sendfile. Linux. transfer data between file descriptors
3. {{man. 2. sendfile. FreeBSD. send a file to a socket

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::