X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Frand.c;h=315e6be02f6819e47c85c18b4c33d2f3e21ab48c;hp=04764d7ffb6c961742dac375d97b8244e5ce8716;hb=2ff00bdbc4aad268e07df82541ff4a16b1f91fe8;hpb=645749ef98612340b11c4bf2ba856e1fa469912b diff --git a/apps/rand.c b/apps/rand.c index 04764d7ffb..315e6be02f 100644 --- a/apps/rand.c +++ b/apps/rand.c @@ -1,4 +1,56 @@ -/* apps/rand.c */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ #include "apps.h" @@ -10,139 +62,115 @@ #include #include -#undef PROG -#define PROG rand_main - -/* -out file - write to file - * -rand file:file - PRNG seed files - * -base64 - encode output - * num - write 'num' bytes - */ - -int MAIN(int, char **); - -int MAIN(int argc, char **argv) - { - int i, r, ret = 1; - int badopt; - char *outfile = NULL; - char *inrand = NULL; - int base64 = 0; - BIO *out = NULL; - int num = -1; - - apps_startup(); - - if (bio_err == NULL) - if ((bio_err = BIO_new(BIO_s_file())) != NULL) - BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT); - - badopt = 0; - i = 0; - while (!badopt && argv[++i] != NULL) - { - if (strcmp(argv[i], "-out") == 0) - { - if ((argv[i+1] != NULL) && (outfile == NULL)) - outfile = argv[++i]; - else - badopt = 1; - } - else if (strcmp(argv[i], "-rand") == 0) - { - if ((argv[i+1] != NULL) && (inrand == NULL)) - inrand = argv[++i]; - else - badopt = 1; - } - else if (strcmp(argv[i], "-base64") == 0) - { - if (!base64) - base64 = 1; - else - badopt = 1; - } - else if (isdigit((unsigned char)argv[i][0])) - { - if (num < 0) - { - r = sscanf(argv[i], "%d", &num); - if (r == 0 || num < 0) - badopt = 1; - } - else - badopt = 1; - } - else - badopt = 1; - } - - if (num < 0) - badopt = 1; - - if (badopt) - { - BIO_printf(bio_err, "Usage: rand [options] num\n"); - BIO_printf(bio_err, "where options are\n"); - BIO_printf(bio_err, "-out file - write to file\n"); - BIO_printf(bio_err, "-rand file%cfile%c... - seed PRNG from files\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); - BIO_printf(bio_err, "-base64 - encode output\n"); - goto err; - } - - app_RAND_load_file(NULL, bio_err, (inrand != NULL)); - if (inrand != NULL) - BIO_printf(bio_err,"%ld semi-random bytes loaded\n", - app_RAND_load_files(inrand)); - - out = BIO_new(BIO_s_file()); - if (out == NULL) - goto err; - if (outfile != NULL) - r = BIO_write_filename(out, outfile); - else - { - r = BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT); -#ifdef VMS - { - BIO *tmpbio = BIO_new(BIO_f_linebuffer()); - out = BIO_push(tmpbio, out); - } +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_OUT, OPT_ENGINE, OPT_RAND, OPT_BASE64, OPT_HEX +} OPTION_CHOICE; + +OPTIONS rand_options[] = { + {OPT_HELP_STR, 1, '-', "Usage: %s [flags] num\n"}, + {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, + {"help", OPT_HELP, '-', "Display this summary"}, + {"out", OPT_OUT, '>', "Output file"}, + {"rand", OPT_RAND, 's', + "Load the file(s) into the random number generator"}, + {"base64", OPT_BASE64, '-', "Base64 encode output"}, + {"hex", OPT_HEX, '-', "Hex encode output"}, +#ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, #endif - } - if (r <= 0) - goto err; - - if (base64) - { - BIO *b64 = BIO_new(BIO_f_base64()); - if (b64 == NULL) - goto err; - out = BIO_push(b64, out); - } - - while (num > 0) - { - unsigned char buf[4096]; - int chunk; - - chunk = num; - if (chunk > sizeof buf) - chunk = sizeof buf; - r = RAND_bytes(buf, chunk); - if (r <= 0) - goto err; - BIO_write(out, buf, chunk); - num -= chunk; - } - BIO_flush(out); - - app_RAND_write_file(NULL, bio_err); - ret = 0; - -err: - ERR_print_errors(bio_err); - if (out) - BIO_free_all(out); - EXIT(ret); - } + {NULL} +}; + +int rand_main(int argc, char **argv) +{ + BIO *out = NULL; + char *inrand = NULL, *outfile = NULL, *prog; + OPTION_CHOICE o; + int format = FORMAT_BINARY, i, num = -1, r, ret = 1; + + prog = opt_init(argc, argv, rand_options); + while ((o = opt_next()) != OPT_EOF) { + switch (o) { + case OPT_EOF: + case OPT_ERR: + opthelp: + BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); + goto end; + case OPT_HELP: + opt_help(rand_options); + ret = 0; + goto end; + case OPT_OUT: + outfile = opt_arg(); + break; + case OPT_ENGINE: + (void)setup_engine(opt_arg(), 0); + break; + case OPT_RAND: + inrand = opt_arg(); + break; + case OPT_BASE64: + format = FORMAT_BASE64; + break; + case OPT_HEX: + format = FORMAT_TEXT; + break; + } + } + argc = opt_num_rest(); + argv = opt_rest(); + + if (argc != 1) + goto opthelp; + if (sscanf(argv[0], "%d", &num) != 1 || num < 0) + goto opthelp; + + if (!app_load_modules(NULL)) + goto end; + + app_RAND_load_file(NULL, (inrand != NULL)); + if (inrand != NULL) + BIO_printf(bio_err, "%ld semi-random bytes loaded\n", + app_RAND_load_files(inrand)); + + out = bio_open_default(outfile, 'w', format); + if (out == NULL) + goto end; + + if (format == FORMAT_BASE64) { + BIO *b64 = BIO_new(BIO_f_base64()); + if (b64 == NULL) + goto end; + out = BIO_push(b64, out); + } + + while (num > 0) { + unsigned char buf[4096]; + int chunk; + + chunk = num; + if (chunk > (int)sizeof(buf)) + chunk = sizeof buf; + r = RAND_bytes(buf, chunk); + if (r <= 0) + goto end; + if (format != FORMAT_TEXT) /* hex */ + BIO_write(out, buf, chunk); + else { + for (i = 0; i < chunk; i++) + BIO_printf(out, "%02x", buf[i]); + } + num -= chunk; + } + if (format == FORMAT_TEXT) + BIO_puts(out, "\n"); + (void)BIO_flush(out); + + app_RAND_write_file(NULL); + ret = 0; + + end: + BIO_free_all(out); + return (ret); +}