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Sets the resume from offset.

Component Version macOS Windows Linux Server iOS SDK
CURL 2.5 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "CURL.SetOptionResumeFrom"; curl; Value )   More

(old name: CURL.SetOptionResumeFromLarge)


Parameter Description Example
curl The CURL session handle. $curl
Value The offset to start at. 1000


Returns "OK" on success.


Sets the resume from offset.
Pass a number as parameter. It contains the offset in number of bytes that you want the transfer to start from. Set this option to 0 to make the transfer start from the beginning (effectively disabling resume). For FTP, set this option to -1 to make the transfer start from the end of the target file (useful to continue an interrupted upload).

When doing uploads with FTP, the resume position is where in the local/source file libcurl should try to resume the upload from and it will then append the source file to the remote target file.

See also RESUME_FROM option in CURL manual.

See also

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Created 18th August 2014, last changed 18th April 2016

CURL.SetOptionResolve - CURL.SetOptionSASLAuthZID