Files
lbmk/util/libreboot-utils/lib/usage.c
T
Leah Rowe 0f1a22174f libreboot-utils: unified error handling
i now use a singleton hook function per program:
nvmutil, mkhtemp and lottery

call this at the startup of your program:

(void) errhook(exit_cleanup);

then provide that function. make it static,
so that each program has its own version.

if you're writing a program that handles lots
of files for example, and you want to do certain
cleanup on exit (including error exit), this can
be quite useful.

Signed-off-by: Leah Rowe <leah@libreboot.org>
2026-03-28 06:53:37 +00:00

31 lines
648 B
C

/* SPDX-License-Identifier: MIT
* Copyright (c) 2023 Riku Viitanen <riku.viitanen@protonmail.com>
* Copyright (c) 2026 Leah Rowe <leah@libreboot.org>
*/
#include <errno.h>
#include <stdio.h>
#include "../include/common.h"
void
usage(void)
{
const char *util = getnvmprogname();
fprintf(stderr,
"Modify Intel GbE NVM images e.g. set MAC\n"
"USAGE:\n"
"\t%s FILE dump\n"
"\t%s FILE setmac [MAC]\n"
"\t%s FILE swap\n"
"\t%s FILE copy 0|1\n"
"\t%s FILE cat\n"
"\t%s FILE cat16\n"
"\t%s FILE cat128\n",
util, util, util, util,
util, util, util);
err_exit(EINVAL, "Too few arguments");
}