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Current Path: /usr/src/crypto/openssl/apps

📁 ..
📄 CA.pl.in(7.4 KB)
📄 app_rand.c(2.18 KB)
📄 apps.c(72.85 KB)
📄 apps.h(24.69 KB)
📄 asn1pars.c(10.31 KB)
📄 bf_prefix.c(4.77 KB)
📄 build.info(2.32 KB)
📄 ca-cert.srl(3 B)
📄 ca-key.pem(916 B)
📄 ca-req.pem(635 B)
📄 ca.c(83.78 KB)
📄 cert.pem(623 B)
📄 ciphers.c(7.19 KB)
📄 client.pem(3.21 KB)
📄 cms.c(44.05 KB)
📄 crl.c(10.79 KB)
📄 crl2p7.c(6.18 KB)
📄 ct_log_list.cnf(412 B)
📄 dgst.c(18.17 KB)
📄 dh1024.pem(446 B)
📄 dh2048.pem(662 B)
📄 dh4096.pem(1007 B)
📄 dhparam.c(11.15 KB)
📄 dsa-ca.pem(2.66 KB)
📄 dsa-pca.pem(2.67 KB)
📄 dsa.c(7.53 KB)
📄 dsa1024.pem(455 B)
📄 dsa512.pem(280 B)
📄 dsap.pem(276 B)
📄 dsaparam.c(7.8 KB)
📄 ec.c(8.13 KB)
📄 ecparam.c(14.65 KB)
📄 enc.c(20.74 KB)
📄 engine.c(15.56 KB)
📄 errstr.c(1.83 KB)
📄 gendsa.c(3.92 KB)
📄 genpkey.c(8.64 KB)
📄 genrsa.c(5.36 KB)
📄 nseq.c(3 KB)
📄 ocsp.c(49.51 KB)
📄 openssl.c(21.23 KB)
📄 openssl.cnf(10.67 KB)
📄 opt.c(23.61 KB)
📄 passwd.c(26.43 KB)
📄 pca-cert.srl(3 B)
📄 pca-key.pem(916 B)
📄 pca-req.pem(635 B)
📄 pkcs12.c(30.81 KB)
📄 pkcs7.c(5.38 KB)
📄 pkcs8.c(11.26 KB)
📄 pkey.c(7.24 KB)
📄 pkeyparam.c(3.66 KB)
📄 pkeyutl.c(15.58 KB)
📄 prime.c(3.56 KB)
📄 privkey.pem(916 B)
📄 progs.h(16.05 KB)
📄 progs.pl(5.43 KB)
📄 rand.c(3.35 KB)
📄 rehash.c(15.3 KB)
📄 req.c(51.46 KB)
📄 req.pem(627 B)
📄 rsa.c(9.3 KB)
📄 rsa8192.pem(6.21 KB)
📄 rsautl.c(7.81 KB)
📄 s1024key.pem(891 B)
📄 s1024req.pem(643 B)
📄 s512-key.pem(497 B)
📄 s512-req.pem(460 B)
📄 s_apps.h(3.3 KB)
📄 s_cb.c(47.04 KB)
📄 s_client.c(115.39 KB)
📄 s_server.c(116.36 KB)
📄 s_socket.c(13.43 KB)
📄 s_time.c(11.92 KB)
📄 server.pem(2.79 KB)
📄 server.srl(3 B)
📄 server2.pem(3.21 KB)
📄 sess_id.c(5.4 KB)
📄 smime.c(20.95 KB)
📄 speed.c(120.17 KB)
📄 spkac.c(5.73 KB)
📄 srp.c(20.09 KB)
📄 storeutl.c(16.13 KB)
📄 testCA.pem(432 B)
📄 testdsa.h(11.77 KB)
📄 testrsa.h(121.12 KB)
📄 timeouts.h(560 B)
📄 ts.c(30.19 KB)
📄 tsget.in(6.45 KB)
📄 verify.c(10.52 KB)
📄 version.c(5.07 KB)
📄 x509.c(39.25 KB)

Editing: rand.c

/*
 * Copyright 1998-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (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 "progs.h"

#include <ctype.h>
#include <stdio.h>
#include <string.h>

#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/rand.h>

typedef enum OPTION_choice {
    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
    OPT_OUT, OPT_ENGINE, OPT_BASE64, OPT_HEX,
    OPT_R_ENUM
} OPTION_CHOICE;

const 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"},
    OPT_R_OPTIONS,
    {"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
    {NULL}
};

int rand_main(int argc, char **argv)
{
    ENGINE *e = NULL;
    BIO *out = NULL;
    char *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:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_R_CASES:
            if (!opt_rand(o))
                goto end;
            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) {
        if (!opt_int(argv[0], &num) || num <= 0)
            goto end;
    } else if (argc > 0) {
        BIO_printf(bio_err, "Extra arguments given.\n");
        goto opthelp;
    }

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) {
            if (BIO_write(out, buf, chunk) != chunk)
                goto end;
        } else {
            for (i = 0; i < chunk; i++)
                if (BIO_printf(out, "%02x", buf[i]) != 2)
                    goto end;
        }
        num -= chunk;
    }
    if (format == FORMAT_TEXT)
        BIO_puts(out, "\n");
    if (BIO_flush(out) <= 0)
        goto end;

ret = 0;

end:
    if (ret != 0)
        ERR_print_errors(bio_err);
    release_engine(e);
    BIO_free_all(out);
    return ret;
}

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Editing: rand.c

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