bigseek

OS/161 Reference Manual

Name

bigseek - test 64-bit seek positions

Synopsis

/testbin/bigseek

Description

bigseek tests manipulation of seek pointers past 2³¹. It is somewhat limited in what it can do, because neither SFS nor emufs supports files larger than 2³² bytes; but it can still seek around and check that the resulting seek position is reported correctly.

Requirements

bigseek uses the following system calls:

• open
• lseek
• read
• write
• close
• remove
• _exit

bigseek should work once you have implemented the basic system calls. Until you implement remove, it will not be able to delete its test file; this is merely untidy, not a problem.