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examples: Demonstrate export of different key formats

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Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Jakub Jelen
2023-08-11 16:53:40 +02:00
parent 3fa28aaf49
commit 417a0f01f8
1 changed files with 44 additions and 2 deletions
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46
examples/keygen2.c
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@ -38,6 +38,7 @@ struct arguments_st {
unsigned long bits; unsigned long bits;
char *file; char *file;
char *passphrase; char *passphrase;
char *format;
int action_list; int action_list;
}; };
@ -96,6 +97,16 @@ static struct argp_option options[] = {
.doc = "List the Fingerprint of the given key\n", .doc = "List the Fingerprint of the given key\n",
.group = 0 .group = 0
}, },
{
.name = "format",
.key = 'm',
.arg = "FORMAT",
.flags = 0,
.doc = "Write the file in specific format. The supported values are "
"'PEM'and 'OpenSSH' file format. By default Ed25519 "
"keys are exported in OpenSSH format and others in PEM.\n",
.group = 0
},
{ {
/* End of the options */ /* End of the options */
0 0
@ -168,6 +179,9 @@ static error_t parse_opt (int key, char *arg, struct argp_state *state)
case 'l': case 'l':
arguments->action_list = 1; arguments->action_list = 1;
break; break;
case 'm':
arguments->format = strdup(arg);
break;
case ARGP_KEY_ARG: case ARGP_KEY_ARG:
if (state->arg_num > 0) { if (state->arg_num > 0) {
/* Too many arguments. */ /* Too many arguments. */
@ -382,8 +396,36 @@ int main(int argc, char *argv[])
} }
/* Write the private key */ /* Write the private key */
rc = ssh_pki_export_privkey_file(key, arguments.passphrase, NULL, NULL, if (arguments.format != NULL) {
arguments.file); if (strcasecmp(arguments.format, "PEM") == 0) {
rc = ssh_pki_export_privkey_file_format(key,
arguments.passphrase,
NULL,
NULL,
arguments.file,
SSH_FILE_FORMAT_PEM);
} else if (strcasecmp(arguments.format, "OpenSSH") == 0) {
rc = ssh_pki_export_privkey_file_format(key,
arguments.passphrase,
NULL,
NULL,
arguments.file,
SSH_FILE_FORMAT_OPENSSH);
} else {
rc = ssh_pki_export_privkey_file_format(key,
arguments.passphrase,
NULL,
NULL,
arguments.file,
SSH_FILE_FORMAT_DEFAULT);
}
} else {
rc = ssh_pki_export_privkey_file(key,
arguments.passphrase,
NULL,
NULL,
arguments.file);
}
if (rc != SSH_OK) { if (rc != SSH_OK) {
fprintf(stderr, "Error: Failed to write private key file"); fprintf(stderr, "Error: Failed to write private key file");
goto end; goto end;