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Author SHA1 Message Date
Leah Rowe e273391792 util/nvmutil: rename fd to fd_ptr in xopen() 
clearer intent

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 22:26:22 +00:00
Leah Rowe 4635a0eae9 util/nvmutil: cleaned up a few prototypes 
make them match how they're declared

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 22:20:15 +00:00
Leah Rowe 0f5fcbd883 util/nvmutil: more readable xopen 
match the argument names of openbsd open(2)

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 22:18:26 +00:00
Leah Rowe 2c2bda31ea util/nvmutil: use unsigned char in hextonum 
char can be signed or unsigned, and this is often
implementation-defined. this could result in bad
comparisons, so we should specifically cast it.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 22:09:56 +00:00
Leah Rowe f57358ac1e util/nvmutil: remove redundant break 
err takes care of it

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:43:11 +00:00
Leah Rowe f59f45893b util/nvmutil: rename write_gbe to write_gbe_file 
for clarity

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:39:58 +00:00
Leah Rowe 85877a93bb util/nvmutil: rename read_gbe to read_gbe_file 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:39:21 +00:00
Leah Rowe dad1f613fc util/nvmutil: unified partnum validation 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:35:49 +00:00
Leah Rowe ed32108613 util/nvmutil: rename global st variable 
rename it to gbe_st, for clarity

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:22:50 +00:00
Leah Rowe b65c988007 util/nvmutil: full prototypes 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:21:40 +00:00
Leah Rowe 3aa30c5039 util/nvmutil: tidy up read_gbe 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:08:47 +00:00
Leah Rowe 040eee4607 util/nvmutil: tidy up set_mac_nib 
simplify it again

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 21:06:58 +00:00
Leah Rowe 6b924787be util/nvmutil: remove unnecessary checck 
the for loop exits when setting cmd

checking for NULL is pointless

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 20:59:50 +00:00
Leah Rowe af55dd8959 Revert "util/nvmutil: make invert an unsigned char" 
This reverts commit 5b120d71e7.

the others are unsigned char. other variables like this one.

better be consistent.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 20:58:04 +00:00
Leah Rowe 10c8be92aa util/nvmutil: general code cleanup 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 20:52:13 +00:00
Leah Rowe a34d430754 util/nvmutil: cleaner mac address variable names 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 20:34:20 +00:00
Leah Rowe 00e0197cfe util/nvmutil: general code cleanup 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 20:11:30 +00:00
Leah Rowe 5b120d71e7 util/nvmutil: make invert an unsigned char 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:59:51 +00:00
Leah Rowe 4bf190a5f5 util/nvmutil: make mac_updated unsigned 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:58:37 +00:00
Leah Rowe 5c90b2453b util/nvmutil: use size_t in setmac functions 
not int

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:57:39 +00:00
Leah Rowe fb805caf6a util/nvmutil: extra part check in set_checksum 
it calls word() anyway, but we should still check it here,
since this is quite a critical function.

the other bound checks are done by word(), which this
function uses to add everything up.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:40:28 +00:00
Leah Rowe f316701d74 util/nvmutil: don't set part in write_mac_part 
make a helper for cmd_setchecksum with size_t arg,
and use it in write_mac_part.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:35:54 +00:00
Leah Rowe c6c4e5303e util/nvmutil: fix duplicated word in comment 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:30:55 +00:00
Leah Rowe 5d05921875 util/nvmutil: make part_modified an unsigned char 
better reflects intent

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:28:32 +00:00
Leah Rowe 1aa8f33d50 util/nvmutil: fix bad string in gbe_read_part() 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:25:54 +00:00
Leah Rowe 9095722079 util/nvmutil: calculate off AFTER part validation 
because we check the part first, so we need to know it's
valid before proceeding.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:23:56 +00:00
Leah Rowe 1131240d02 util/nvmutil: made a comment a bit clearer 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:21:02 +00:00
Leah Rowe 72caa5f892 util/nvmutil: fix another printf specifier 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:17:01 +00:00
Leah Rowe efdf110317 util/nvmutil: remove unnecessary casts 
now that part numbers are size_t, i don't need them.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:08:55 +00:00
Leah Rowe d94fbba779 util/nvmutil: fix more bad printf statements 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:04:38 +00:00
Leah Rowe 6d2a1afbd4 util/nvmutil: fix a few bad printf statements 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 19:03:06 +00:00
Leah Rowe 0698c6ada4 util/nvmutil: warn about partial gbe file writes 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 18:55:31 +00:00
Leah Rowe 397fc78e58 util/nvmutil: use size_t for part numbers 
not int

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 18:45:26 +00:00
Leah Rowe 82fdee91fa util/nvmutil: clean up file handling 
inline check_read_or_die

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 18:36:29 +00:00
Leah Rowe 58b17c98fd util/nvmutil: minor cleanup 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 18:25:24 +00:00
Leah Rowe c8bd98c8a6 util/nvmutil: mem bound check on file read/write 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 18:17:07 +00:00
Leah Rowe 41f7f6352d util/nvmutil: rename gbe_bound for clarity 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 17:47:49 +00:00
Leah Rowe b1abef8881 util/nvmutil: make defines easier to understand 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 17:44:07 +00:00
Leah Rowe edca6c2cd3 util/nvmutil: tidy up set_mac_nib 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 17:35:00 +00:00
Leah Rowe 123e77d07f util/nvmutil: use portable printf on hexdump 
lx means unsigned long, and row is size_t which often
is, but this is not guaranteed.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 17:31:04 +00:00
Leah Rowe c0a77a7301 util/nvmutil: make the MAC shifting easier to read 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 17:22:31 +00:00
Leah Rowe 596643a0d5 util/nvmutil: optimise hextonum 
there is 0x20 of different between a and A

so we can just or 0x20 and compare only lowercase.

we can also cast char (which may me signed on some
systems) to unsigned, and then only check whether
it's lower than 10.

this code results in far less branching (in C),
but a good optimising compiler probably wouldn't
have cared about the old version anyway.

it's just nicer C code.

this also means we no longer need to check for
X, only x.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 17:07:12 +00:00
Leah Rowe 6023d17b6e util/nvmutil: fix parenthesis warning in GCC 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 17:01:48 +00:00
Leah Rowe 199dbad96d util/nvmutil: tidy up set_mac_nib 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 16:55:23 +00:00
Leah Rowe 9e32456c8c util/nvmutil: clearer intent on struct data 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 16:52:02 +00:00
Leah Rowe 7ae2288c10 util/nvmutil: more readable NVM defines 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 16:49:41 +00:00
Leah Rowe 2f0c189da9 util/nvmutil: more readable SIZE_nKB defines 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 16:46:01 +00:00
Leah Rowe 7f6d7526cc util/nvmutil: use arc4random on DragonFly BSD 
it has arc4random, so we will use it there.

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 16:43:18 +00:00
Leah Rowe a358a6fe09 util/nvmutil: use strlen instead of strnlen 
strnlen isn't available on some older unices.

we already know the string will be null-terminated,
because it comes from argv, so runaway reads are
extremely unlikely (read: impossible).

Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 16:41:59 +00:00
Leah Rowe a82c766b8c util/nvmutil: add bound checks for gbe read/write 
Signed-off-by: Leah Rowe <leah@libreboot.org>
 2026-03-06 16:29:45 +00:00