wireguard-openbsd/bin/df/df.c, branch jd/simplify-queueing

When system calls indicate an error they return -1, not some arbitrary

2019-06-28T13:34:58Z

value < 0. errno is only updated in this case. Change all (most?) callers of syscalls to follow this better, and let's see if this strictness helps us in the future.

Another %qd -> %lld + (long long) for off_t's.

2016-08-14T21:07:40Z

replace __progname with getprogname(3)

2016-03-14T14:44:03Z

from Michal Mazurek, ok tb@

simplify print formatting logic, replace exit() in main() with return

2016-03-07T01:19:46Z

from Michal Mazurek, ok tb@

tidy up function declarations and definitions

2016-03-01T18:00:42Z

from Michal Mazurek, ok tb@

remove needless headers

2016-02-08T16:23:54Z

ok tb@, from Michal Mazurek

Change all tame callers to namechange to pledge(2).

2015-10-09T01:37:06Z

df is a tame "stdio rpath" program, the rpath due to getfsstat and statfs.

2015-10-04T15:54:15Z

those two system calls were put into the "rpath" catagory because they expose pathname information.

Replace with and other less dirty headers where

2015-01-16T06:39:28Z

possible. Annotate lines with their current reasons. Switch to PATH_MAX, NGROUPS_MAX, HOST_NAME_MAX+1, LOGIN_NAME_MAX, etc. Change MIN() and MAX() to local definitions of MINIMUM() and MAXIMUM() where sensible to avoid pulling in the pollution. These are the files confirmed through binary verification. ok guenther, millert, doug (helped with the verification protocol)

As suggested by guenther@ and millert@, replace seek+[read|write] with

2014-05-20T21:11:16Z

p[read|write]. Makes the code much clearer by eliminating extra error checking and verbiage. No intentional functional change. Tweaks by and ok guenther@