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20 hoursutil/nvmutil: re-add fallback timer randLeah Rowe
for 1989 enabled via ifdef. not enabled by default. Signed-off-by: Leah Rowe <leah@libreboot.org>
21 hoursutil/nvmutil: rand: use getrandom on newer linuxLeah Rowe
we still fall back to the old /dev/urandom read on older linux, via runtime detection (ENOSYS). getrandom is better, because it guarantees entropy via blocking, and works even when /dev/urandom is unavailable. it has the same practical benefit as arc4random, which i use on bsd. linux can have arc4random, but not every linux libc has it, so it's better to use getrandom on linux. older linux will fall back to /dev/urandom Signed-off-by: Leah Rowe <leah@libreboot.org>
21 hoursutil/nvmutil: buffered urandom readsLeah Rowe
also generally tidied the code and made it more robust e.g. retries Signed-off-by: Leah Rowe <leah@libreboot.org>
23 hourstidy some commentsLeah Rowe
Signed-off-by: Leah Rowe <leah@libreboot.org>
30 hoursutil/nvmutil: hardened mkstempLeah Rowe
200 retries, not 100. and open with O_NOFOLLOW and O_CLOEXEC check X on mkstemp support more than 6 X in mkstemp make PATH_LEN 4096 1024 is a bit low make default mkstemp length 4096 Signed-off-by: Leah Rowe <leah@libreboot.org>
31 hoursnvmutil: rename lseek_loop to lseek_on_eintrLeah Rowe
that's what it does! Signed-off-by: Leah Rowe <leah@libreboot.org>
31 hoursnvmutil: rename x_i_close to close_on_eintrLeah Rowe
that's what it does. waits for eintr to stop firing Signed-off-by: Leah Rowe <leah@libreboot.org>
31 hoursnvmutil: don't have finite eintr waitLeah Rowe
this is technically incorrect. we don't control faults in the hardware. Signed-off-by: Leah Rowe <leah@libreboot.org>
32 hoursnvmutil: rename x_i_fsync to fsync_on_eintrLeah Rowe
that's what it does. waits on eintr. Signed-off-by: Leah Rowe <leah@libreboot.org>
32 hoursnvmutil: remove memcmp/memcpy/strrchr/renameLeah Rowe
i had this idea in my head of later porting this to k&r c for fun. but screw it. compiling on everything since 1989 is enough Signed-off-by: Leah Rowe <leah@libreboot.org>
32 hoursutil/nvmutil: tidy up includesLeah Rowe
Signed-off-by: Leah Rowe <leah@libreboot.org>
35 hoursutil/nvmutil: major cleanupLeah Rowe
handle init in xstatus() it's now a singleton design also tidied up some other code also removed todo.c. bloat. will do all those anyway. too much change. i just kept touching the code until it looked good Signed-off-by: Leah Rowe <leah@libreboot.org>
2 daysnvmutil: split nvmutil.c into multiple filesLeah Rowe
this is a big program now. act like it. Signed-off-by: Leah Rowe <leah@libreboot.org>