Thanks, I found example in fdtgrep.
What do you think about function like:
static void print_usage(const char *msg)
{
if (msg != NULL)
fprintf(stderr, "Error: %s\n", msg);
fprintf(stderr, "Usage: %s [-a <algo>] [-k <keydir>] [-n <keyname>] [-r
<conf|image>] <fdt blob>\n"
"Options:\n"
"\t-a <algo> Cryptographic algorithm. Optional parameter,
default: sha1,rsa2048\n"
"\t-k <keydir> Directory with public key. Optional
parameter, default: .\n"
"\t-n <keyname> Public key name. Optional parameter,
default: key\n"
"\t-r <conf|image> Required: If present this indicates that the
key must be verified for the image / configuration to be considered valid\n"
"\t<fdt blob> FDT blob file for adding of the public key.
Required parameter.\n",
cmdname);
exit(EXIT_FAILURE);
}
Is it ok?
-----Original Message-----
From: Jan Kiszka <[email protected]>
Sent: Wednesday, November 10, 2021 10:22 PM
To: Roman Kopytin <[email protected]>; [email protected]
Cc: Rasmus Villemoes <[email protected]>
Subject: Re: [PATCH 1/2] tools: add fdt_add_pubkey
On 10.11.21 09:26, Roman Kopytin wrote:
> Could you please provide good example with needed style for helper?
> In tools I saw a lot of programs w/o help.
>
Have a look at binman to see this full-blown - not a completely fair comparison
as it benefits from Python argparse.
Jan
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