libssh2_sftp_seek man page
libssh2_sftp_seek — set the read/write position indicator within a file
#include <libssh2.h> #include <libssh2_sftp.h> void libssh2_sftp_seek(LIBSSH2_SFTP_HANDLE *handle, size_t offset);
Deprecated function. Use libssh2_sftp_seek64(3) instead!
handle - SFTP File Handle as returned by libssh2_sftp_open_ex(3)
offset - Number of bytes from the beginning of file to seek to.
Move the file handle's internal pointer to an arbitrary location. Note that libssh2 implements file pointers as a localized concept to make file access appear more POSIX like. No packets are exchanged with the server during a seek operation. The localized file pointer is simply used as a convenience offset during read/write operations.