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util/nvmutil: remove COMMAND, MAC_ADDRESS, PARTN

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these macros serve no purpose except to obfuscate the
code. it's actually cleaner just to refer directly to
argv, and it reduces the chance of contamination later
upon re-factoring.

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-03 16:15:33 +00:00
parent b3119c8b4d
commit 61fa94d0d2
1 changed files with 17 additions and 14 deletions
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31
util/nvmutil/nvmutil.c
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@@ -48,9 +48,6 @@ static void usage(const char *);
static void err_if(int);
static int set_err(int);
#define COMMAND argv[2]
#define MAC_ADDRESS argv[3]
#define PARTN argv[3]
#define NVM_CHECKSUM 0xBABA
#define NVM_CHECKSUM_WORD 0x3F
#define NVM_SIZE 128
@@ -96,8 +93,9 @@ static void (*cmd)(void) = NULL;
int
main(int argc, char *argv[])
{
if (argc >= 2)
fname = argv[1];
if (argc < 2)
usage(argv[0]);
fname = argv[1];
#ifdef __OpenBSD__
err_if(pledge("stdio rpath wpath unveil", NULL) == -1);
err_if(unveil("/dev/urandom", "r") == -1);
@@ -132,16 +130,17 @@ static void
set_cmd(int argc, char *argv[])
{
size_t i;
const char *arg_cmd = argv[2];
if (argc < 2) {
usage(argv[0]);
} else if (argc == 2) {
if (argc == 2) {
cmd = cmd_setmac;
return;
}
arg_cmd = argv[2];
for (i = 0; (i < items(ops)) && (cmd == NULL); i++) {
if (strcmp(COMMAND, ops[i].str) != 0)
if (strcmp(arg_cmd, ops[i].str) != 0)
continue;
if (argc >= ops[i].args) {
cmd = ops[i].cmd;
@@ -155,16 +154,18 @@ set_cmd(int argc, char *argv[])
static void
check_cmd_args(int argc, char *argv[])
{
const char *arg_cmd = argv[2];
if ((cmd == NULL) && (argc > 2)) { /* nvm gbe [MAC] */
mac = COMMAND;
mac = arg_cmd;
cmd = cmd_setmac;
} else if (cmd == cmd_setmac) { /* nvm gbe setmac [MAC] */
mac = rmac; /* random MAC */
if (argc > 3)
mac = MAC_ADDRESS;
mac = argv[3];
} else if ((cmd != NULL) && (argc > 3)) { /* user-supplied partnum */
err_if((errno = (!((part = PARTN[0] - '0') == 0 || part == 1))
|| PARTN[1] ? EINVAL : errno)); /* only allow '0' or '1' */
err_if((errno = (!((part = argv[3][0] - '0') == 0 || part == 1))
|| argv[3][1] ? EINVAL : errno)); /* only '0' or '1' */
}
if (cmd == NULL)
@@ -174,9 +175,11 @@ check_cmd_args(int argc, char *argv[])
static void
set_io_flags(int argc, char *argv[])
{
const char *arg_cmd = argv[2];
flags = O_RDWR;
if (argc > 2)
if (strcmp(COMMAND, "dump") == 0)
if (strcmp(arg_cmd, "dump") == 0)
flags = O_RDONLY;
}