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/*
* Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "apps.h"
#include "app_params.h"
static int describe_param_type(char *buf, size_t bufsz, const OSSL_PARAM *param)
{
const char *type_mod = "";
const char *type = NULL;
int show_type_number = 0;
int printed_len;
switch (param->data_type) {
case OSSL_PARAM_UNSIGNED_INTEGER:
type_mod = "unsigned ";
/* FALLTHRU */
case OSSL_PARAM_INTEGER:
type = "integer";
break;
case OSSL_PARAM_UTF8_PTR:
type_mod = "pointer to a ";
/* FALLTHRU */
case OSSL_PARAM_UTF8_STRING:
type = "UTF8 encoded string";
break;
case OSSL_PARAM_OCTET_PTR:
type_mod = "pointer to an ";
/* FALLTHRU */
case OSSL_PARAM_OCTET_STRING:
type = "octet string";
break;
default:
type = "unknown type";
show_type_number = 1;
break;
}
printed_len = BIO_snprintf(buf, bufsz, "%s: ", param->key);
if (printed_len > 0) {
buf += printed_len;
bufsz -= printed_len;
}
printed_len = BIO_snprintf(buf, bufsz, "%s%s", type_mod, type);
if (printed_len > 0) {
buf += printed_len;
bufsz -= printed_len;
}
if (show_type_number) {
printed_len = BIO_snprintf(buf, bufsz, " [%d]", param->data_type);
if (printed_len > 0) {
buf += printed_len;
bufsz -= printed_len;
}
}
if (param->data_size == 0)
printed_len = BIO_snprintf(buf, bufsz, " (arbitrary size)");
else
printed_len = BIO_snprintf(buf, bufsz, " (max %zu bytes large)",
param->data_size);
if (printed_len > 0) {
buf += printed_len;
bufsz -= printed_len;
}
*buf = '\0';
return 1;
}
int print_param_types(const char *thing, const OSSL_PARAM *pdefs, int indent)
{
if (pdefs == NULL) {
return 1;
} else if (pdefs->key == NULL) {
/*
* An empty list? This shouldn't happen, but let's just make sure to
* say something if there's a badly written provider...
*/
BIO_printf(bio_out, "%*sEmpty list of %s (!!!)\n", indent, "", thing);
} else {
BIO_printf(bio_out, "%*s%s:\n", indent, "", thing);
for (; pdefs->key != NULL; pdefs++) {
char buf[200]; /* This should be ample space */
describe_param_type(buf, sizeof(buf), pdefs);
BIO_printf(bio_out, "%*s %s\n", indent, "", buf);
}
}
return 1;
}
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