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