2 * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
14 #include <openssl/bio.h>
15 #include <openssl/err.h>
16 #include <openssl/evp.h>
19 #define BUFSIZE 1024*8
21 typedef enum OPTION_choice {
22 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
23 OPT_MACOPT, OPT_BIN, OPT_IN, OPT_OUT
26 const OPTIONS mac_options[] = {
27 {OPT_HELP_STR, 1, '-', "Usage: %s [options] mac_name\n"},
28 {OPT_HELP_STR, 1, '-', "mac_name\t\t MAC algorithm (See list "
30 {"help", OPT_HELP, '-', "Display this summary"},
31 {"macopt", OPT_MACOPT, 's', "MAC algorithm control parameters in n:v form. "
32 "See 'Supported Controls' in the EVP_MAC_ docs"},
33 {"in", OPT_IN, '<', "Input file to MAC (default is stdin)"},
34 {"out", OPT_OUT, '>', "Output to filename rather than stdout"},
35 {"binary", OPT_BIN, '-', "Output in binary format (Default is hexadecimal "
40 static int mac_ctrl_string(EVP_MAC_CTX *ctx, const char *value)
43 char *stmp, *vtmp = NULL;
45 stmp = OPENSSL_strdup(value);
48 vtmp = strchr(stmp, ':');
53 rv = EVP_MAC_ctrl_str(ctx, stmp, vtmp);
58 int mac_main(int argc, char **argv)
62 const EVP_MAC *mac = NULL;
64 EVP_MAC_CTX *ctx = NULL;
65 STACK_OF(OPENSSL_STRING) *opts = NULL;
66 unsigned char *buf = NULL;
69 BIO *in = NULL, *out = NULL;
70 const char *outfile = NULL;
71 const char *infile = NULL;
73 int inform = FORMAT_BINARY;
75 prog = opt_init(argc, argv, mac_options);
76 buf = app_malloc(BUFSIZE, "I/O buffer");
77 while ((o = opt_next()) != OPT_EOF) {
81 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
84 opt_help(mac_options);
98 opts = sk_OPENSSL_STRING_new_null();
99 if (opts == NULL || !sk_OPENSSL_STRING_push(opts, opt_arg()))
104 argc = opt_num_rest();
108 BIO_printf(bio_err, "Invalid number of extra arguments\n");
112 mac = EVP_get_macbyname(argv[0]);
114 BIO_printf(bio_err, "Invalid MAC name %s\n", argv[0]);
118 ctx = EVP_MAC_CTX_new(mac);
123 for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
124 char *opt = sk_OPENSSL_STRING_value(opts, i);
125 if (mac_ctrl_string(ctx, opt) <= 0) {
126 BIO_printf(bio_err, "MAC parameter error '%s'\n", opt);
127 ERR_print_errors(bio_err);
133 /* Use text mode for stdin */
134 if (infile == NULL || strcmp(infile, "-") == 0)
135 inform = FORMAT_TEXT;
136 in = bio_open_default(infile, 'r', inform);
140 out = bio_open_default(outfile, 'w', out_bin ? FORMAT_BINARY : FORMAT_TEXT);
144 if (!EVP_MAC_init(ctx)) {
145 BIO_printf(bio_err, "EVP_MAC_Init failed\n");
151 i = BIO_read(in, (char *)buf, BUFSIZE);
153 BIO_printf(bio_err, "Read Error in '%s'\n", infile);
158 if (!EVP_MAC_update(ctx, buf, i)) {
159 BIO_printf(bio_err, "EVP_MAC_update failed\n");
164 if (!EVP_MAC_final(ctx, NULL, &len)) {
165 BIO_printf(bio_err, "EVP_MAC_final failed\n");
169 BIO_printf(bio_err, "output len is too large\n");
173 if (!EVP_MAC_final(ctx, buf, &len)) {
174 BIO_printf(bio_err, "EVP_MAC_final failed\n");
179 BIO_write(out, buf, len);
182 BIO_printf(out,"\n");
183 for (i = 0; i < (int)len; ++i)
184 BIO_printf(out, "%02X", buf[i]);
186 BIO_printf(out,"\n");
192 ERR_print_errors(bio_err);
193 OPENSSL_clear_free(buf, BUFSIZE);
194 sk_OPENSSL_STRING_free(opts);
197 EVP_MAC_CTX_free(ctx);