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authorRiku Viitanen <riku.viitanen@protonmail.com>2023-11-06 13:00:05 +0200
committerRiku Viitanen <riku.viitanen@protonmail.com>2023-11-06 13:07:36 +0200
commit866087211fddd5b468841fa29b17b65dbd582b7c (patch)
tree5d8755f5ce32ccabe55c2ebdd9ebf59c6c073e1c /util
parentf12f5c3aeef11b43194cb25eb5e395958283c2c9 (diff)
nvmutil: print usage
Signed-off-by: Riku Viitanen <riku.viitanen@protonmail.com>
Diffstat (limited to 'util')
-rw-r--r--util/nvmutil/nvmutil.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c
index 0ccfaf32..35abbfae 100644
--- a/util/nvmutil/nvmutil.c
+++ b/util/nvmutil/nvmutil.c
@@ -1,5 +1,6 @@
/* SPDX-License-Identifier: MIT */
/* SPDX-FileCopyrightText: 2022, 2023 Leah Rowe <leah@libreboot.org> */
+/* SPDX-FileCopyrightText: 2023 Riku Viitanen <riku.viitanen@protonmail.com> */
#include <sys/stat.h>
@@ -61,8 +62,16 @@ void (*cmd)(void) = NULL;
int
main(int argc, char *argv[])
{
- if (argc < 3)
+ if (argc < 3) {
+ fprintf(stderr, "USAGE:\n");
+ fprintf(stderr, " %s FILE dump\n", argv[0]);
+ fprintf(stderr, " %s FILE setmac [MAC]\n", argv[0]);
+ fprintf(stderr, " %s FILE swap\n", argv[0]);
+ fprintf(stderr, " %s FILE copy 0|1\n", argv[0]);
+ fprintf(stderr, " %s FILE brick 0|1\n", argv[0]);
+ fprintf(stderr, " %s FILE setchecksum 0|1\n", argv[0]);
err(errno = ECANCELED, "Too few arguments");
+ }
flags = (strcmp(COMMAND, "dump") == 0) ? O_RDONLY : flags;
filename = argv[1];
#ifdef __OpenBSD__