C++ opt_rest函数代码示例

int genrsa_main(int argc, char **argv)
{
    BN_GENCB *cb = BN_GENCB_new();
    PW_CB_DATA cb_data;
    ENGINE *eng = NULL;
    BIGNUM *bn = BN_new();
    BIO *out = NULL;
    BIGNUM *e;
    RSA *rsa = NULL;
    const EVP_CIPHER *enc = NULL;
    int ret = 1, num = DEFBITS, private = 0;
    unsigned long f4 = RSA_F4;
    char *outfile = NULL, *passoutarg = NULL, *passout = NULL;
    char *inrand = NULL, *prog, *hexe, *dece;
    OPTION_CHOICE o;

    if (bn == NULL || cb == NULL)
        goto end;

    BN_GENCB_set(cb, genrsa_cb, bio_err);

    prog = opt_init(argc, argv, genrsa_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            ret = 0;
            opt_help(genrsa_options);
            goto end;
        case OPT_3:
            f4 = 3;
            break;
        case OPT_F4:
            f4 = RSA_F4;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_ENGINE:
            eng = setup_engine(opt_arg(), 0);
            break;
        case OPT_RAND:
            inrand = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = opt_arg();
            break;
        case OPT_CIPHER:
            if (!opt_cipher(opt_unknown(), &enc))
                goto end;
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();
    private = 1;

/* How many items in remaining args? */
int opt_num_rest(void)
{
    int i = 0;
    char **pp;

    for (pp = opt_rest(); *pp; pp++, i++)
        continue;
    return i;
}

char *test_get_argument(size_t n)
{
    char **argv = opt_rest();

    OPENSSL_assert(n < sizeof(used));
    if ((int)n >= opt_num_rest() || argv == NULL)
        return NULL;
    used[n] = 1;
    return argv[n];
}

int help_main(int argc, char **argv)
{
    FUNCTION *fp;
    int i, nl;
    FUNC_TYPE tp;
    char *prog;
    HELPLIST_CHOICE o;

    prog = opt_init(argc, argv, help_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        default:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            return 1;
        case OPT_HELP:
            opt_help(help_options);
            return 0;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (argc != 0) {
        BIO_printf(bio_err, "Usage: %s\n", prog);
        return 1;
    }

    BIO_printf(bio_err, "\nStandard commands");
    i = 0;
    tp = FT_none;
    for (fp = functions; fp->name != NULL; fp++) {
        nl = 0;
        if (((i++) % COLUMNS) == 0) {
            BIO_printf(bio_err, "\n");
            nl = 1;
        }
        if (fp->type != tp) {
            tp = fp->type;
            if (!nl)
                BIO_printf(bio_err, "\n");
            if (tp == FT_md) {
                i = 1;
                BIO_printf(bio_err,
                           "\nMessage Digest commands (see the `dgst' command for more details)\n");
            } else if (tp == FT_cipher) {
                i = 1;
                BIO_printf(bio_err,
                           "\nCipher commands (see the `enc' command for more details)\n");
            }
        }
        BIO_printf(bio_err, FORMAT, fp->name);
    }
    BIO_printf(bio_err, "\n\n");
    return 0;
}

int main(int ac, char **av)
{
    OPTION_CHOICE o;
    char **rest;
    char *prog;

    bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);

    prog = opt_init(ac, av, options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (c) {
        case OPT_NOTUSED:
        case OPT_EOF:
        case OPT_ERR:
            printf("%s: Usage error; try -help.\n", prog);
            return 1;
        case OPT_HELP:
            opt_help(options);
            return 0;
        case OPT_IN:
            printf("in %s\n", opt_arg());
            break;
        case OPT_INFORM:
            printf("inform %s\n", opt_arg());
            break;
        case OPT_OUT:
            printf("out %s\n", opt_arg());
            break;
        case OPT_COUNT:
            printf("count %s\n", opt_arg());
            break;
        case OPT_U:
            printf("u %s\n", opt_arg());
            break;
        case OPT_FLAG:
            printf("flag\n");
            break;
        case OPT_STR:
            printf("str %s\n", opt_arg());
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    printf("args = %d\n", argc);
    if (argc)
        while (*argv)
            printf("  %s\n", *argv++);
    return 0;
}

int gendsa_main(int argc, char **argv)
{
    ENGINE *e = NULL;
    BIO *out = NULL, *in = NULL;
    DSA *dsa = NULL;
    const EVP_CIPHER *enc = NULL;
    char *dsaparams = NULL;
    char *outfile = NULL, *passoutarg = NULL, *passout = NULL, *prog;
    OPTION_CHOICE o;
    int ret = 1, private = 0, verbose = 0;
    const BIGNUM *p = NULL;

    prog = opt_init(argc, argv, gendsa_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:
            ret = 0;
            opt_help(gendsa_options);
            goto end;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = 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_CIPHER:
            if (!opt_cipher(opt_unknown(), &enc))
                goto end;
            break;
        case OPT_VERBOSE:
            verbose = 1;
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();
    private = 1;

int errstr_main(int argc, char **argv)
{
    OPTION_CHOICE o;
    char buf[256], *prog;
    int ret = 1;
    unsigned long l;

    prog = opt_init(argc, argv, errstr_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            opt_help(errstr_options);
            ret = 0;
            goto end;
        case OPT_STATS:
            lh_ERR_STRING_DATA_node_stats_bio(ERR_get_string_table(),
                                              bio_out);
            lh_ERR_STRING_DATA_stats_bio(ERR_get_string_table(), bio_out);
            lh_ERR_STRING_DATA_node_usage_stats_bio(ERR_get_string_table(),
                                                    bio_out);
            ret = 0;
            goto end;
        }
    }

    ret = 0;
    for (argv = opt_rest(); *argv; argv++) {
        if (sscanf(*argv, "%lx", &l) == 0)
            ret++;
        else {
            /* We're not really an SSL application so this won't auto-init, but
             * we're still interested in SSL error strings
             */
            OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
                             | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
            ERR_error_string_n(l, buf, sizeof buf);
            BIO_printf(bio_out, "%s\n", buf);
        }
    }
end:
    return (ret);
}

void opt_check_usage(void)
{
    int i;
    char **argv = opt_rest();
    int n, arg_count = opt_num_rest();

    if (arg_count > (int)OSSL_NELEM(used))
        n = (int)OSSL_NELEM(used);
    else
        n = arg_count;
    for (i = 0; i < n; i++) {
        if (used[i] == 0)
            test_printf_stderr("Warning ignored command-line argument %d: %s\n",
                               i, argv[i]);
    }
    if (i < arg_count)
        test_printf_stderr("Warning arguments %d and later unchecked\n", i);
}

//.........这里部分代码省略.........
            }
            keyfile = opt_arg();
            break;
        case OPT_KEYFORM:
            if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
                goto opthelp;
            break;
        case OPT_CERTFILE:
            certfile = opt_arg();
            break;
        case OPT_CAFILE:
            CAfile = opt_arg();
            break;
        case OPT_CAPATH:
            CApath = opt_arg();
            break;
        case OPT_NOCAFILE:
            noCAfile = 1;
            break;
        case OPT_NOCAPATH:
            noCApath = 1;
            break;
        case OPT_CONTENT:
            contfile = opt_arg();
            break;
        case OPT_V_CASES:
            if (!opt_verify(o, vpm))
                goto opthelp;
            vpmtouched++;
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
        BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
        goto opthelp;
    }

    if (operation & SMIME_SIGNERS) {
        /* Check to see if any final signer needs to be appended */
        if (keyfile && !signerfile) {
            BIO_puts(bio_err, "Illegal -inkey without -signer\n");
            goto opthelp;
        }
        if (signerfile) {
            if (!sksigners
                && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
                goto end;
            sk_OPENSSL_STRING_push(sksigners, signerfile);
            if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
                goto end;
            if (!keyfile)
                keyfile = signerfile;
            sk_OPENSSL_STRING_push(skkeys, keyfile);
        }
        if (!sksigners) {
            BIO_printf(bio_err, "No signer certificate specified\n");
            goto opthelp;
        }
        signerfile = NULL;
        keyfile = NULL;
        need_rand = 1;
    } else if (operation == SMIME_DECRYPT) {
        if (!recipfile && !keyfile) {

//.........这里部分代码省略.........
            break;
        case OPT_VERIFY:
            pkey_op = EVP_PKEY_OP_VERIFY;
            break;
        case OPT_VERIFYRECOVER:
            pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
            break;
        case OPT_REV:
            rev = 1;
        case OPT_ENCRYPT:
            pkey_op = EVP_PKEY_OP_ENCRYPT;
            break;
        case OPT_DECRYPT:
            pkey_op = EVP_PKEY_OP_DECRYPT;
            break;
        case OPT_DERIVE:
            pkey_op = EVP_PKEY_OP_DERIVE;
            break;
        case OPT_PKEYOPT:
            if (ctx == NULL) {
                BIO_printf(bio_err,
                           "%s: Must have -inkey before -pkeyopt\n", prog);
                goto opthelp;
            }
            if (pkey_ctrl_string(ctx, opt_arg()) <= 0) {
                BIO_printf(bio_err, "%s: Can't set parameter:\n", prog);
                ERR_print_errors(bio_err);
                goto end;
            }
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (ctx == NULL)
        goto opthelp;

    if (!app_load_modules(NULL))
        goto end;

    if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
        BIO_printf(bio_err,
                   "%s: Signature file specified for non verify\n", prog);
        goto end;
    }

    if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
        BIO_printf(bio_err,
                   "%s: No signature file specified for verify\n", prog);
        goto end;
    }

/* FIXME: seed PRNG only if needed */
    app_RAND_load_file(NULL, 0);

    if (pkey_op != EVP_PKEY_OP_DERIVE) {
        in = bio_open_default(infile, "rb");
        if (in == NULL)
            goto end;
    }
    out = bio_open_default(outfile, "wb");
    if (out == NULL)
        goto end;

    if (sigfile) {

int srp_main(int argc, char **argv)
{
    CA_DB *db = NULL;
    CONF *conf = NULL;
    int gNindex = -1, maxgN = -1, ret = 1, errors = 0, verbose = 0, i;
    int doupdatedb = 0, mode = OPT_ERR;
    char *user = NULL, *passinarg = NULL, *passoutarg = NULL;
    char *passin = NULL, *passout = NULL, *gN = NULL, *userinfo = NULL;
    char *randfile = NULL, *section = NULL;
    char **gNrow = NULL, *configfile = NULL;
    char *srpvfile = NULL, **pp, *prog;
    OPTION_CHOICE o;

    prog = opt_init(argc, argv, srp_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(srp_options);
            ret = 0;
            goto end;
        case OPT_VERBOSE:
            verbose++;
            break;
        case OPT_CONFIG:
            configfile = opt_arg();
            break;
        case OPT_NAME:
            section = opt_arg();
            break;
        case OPT_SRPVFILE:
            srpvfile = opt_arg();
            break;
        case OPT_ADD:
        case OPT_DELETE:
        case OPT_MODIFY:
        case OPT_LIST:
            if (mode != OPT_ERR) {
                BIO_printf(bio_err,
                           "%s: Only one of -add/delete-modify/-list\n",
                           prog);
                goto opthelp;
            }
            mode = o;
            break;
        case OPT_GN:
            gN = opt_arg();
            break;
        case OPT_USERINFO:
            userinfo = opt_arg();
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = opt_arg();
            break;
        case OPT_ENGINE:
            (void)setup_engine(opt_arg(), 0);
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (srpvfile && configfile) {
        BIO_printf(bio_err,
                   "-srpvfile and -configfile cannot be specified together.\n");
        goto end;
    }
    if (mode == OPT_ERR) {
        BIO_printf(bio_err,
                   "Exactly one of the options -add, -delete, -modify -list must be specified.\n");
        goto opthelp;
    }
    if ((mode == OPT_DELETE || mode == OPT_MODIFY || mode == OPT_ADD)
        && argc < 1) {
        BIO_printf(bio_err,
                   "Need at least one user for options -add, -delete, -modify. \n");
        goto opthelp;
    }
    if ((passin || passout) && argc != 1) {
        BIO_printf(bio_err,
                   "-passin, -passout arguments only valid with one user.\n");
        goto opthelp;
    }

    if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
        BIO_printf(bio_err, "Error getting passwords\n");
        goto end;
    }

    if (!srpvfile) {
        if (!configfile)
            configfile = default_config_file;

//.........这里部分代码省略.........

int pkey_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL;
    ENGINE *e = NULL;
    EVP_PKEY *pkey = NULL;
    const EVP_CIPHER *cipher = NULL;
    char *infile = NULL, *outfile = NULL, *passin = NULL, *passout = NULL;
    char *passinarg = NULL, *passoutarg = NULL, *prog;
    OPTION_CHOICE o;
    int informat = FORMAT_PEM, outformat = FORMAT_PEM;
    int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0, ret = 1;
    int private = 0;

    prog = opt_init(argc, argv, pkey_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(pkey_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
                goto opthelp;
            break;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
                goto opthelp;
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_PUBIN:
            pubin = pubout = pubtext = 1;
            break;
        case OPT_PUBOUT:
            pubout = 1;
            break;
        case OPT_TEXT_PUB:
            pubtext = text = 1;
            break;
        case OPT_TEXT:
            text = 1;
            break;
        case OPT_NOOUT:
            noout = 1;
            break;
        case OPT_MD:
            if (!opt_cipher(opt_unknown(), &cipher))
                goto opthelp;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();
    private = !noout && !pubout ? 1 : 0;

//.........这里部分代码省略.........
            badsig = 1;
            break;
#ifndef OPENSSL_NO_MD5
        case OPT_SUBJECT_HASH_OLD:
            subject_hash_old = ++num;
            break;
        case OPT_ISSUER_HASH_OLD:
            issuer_hash_old = ++num;
            break;
#endif
        case OPT_DATES:
            startdate = ++num;
            enddate = ++num;
            break;
        case OPT_CHECKEND:
            checkoffset = atoi(opt_arg());
            checkend = 1;
            break;
        case OPT_CHECKHOST:
            checkhost = opt_arg();
            break;
        case OPT_CHECKEMAIL:
            checkemail = opt_arg();
            break;
        case OPT_CHECKIP:
            checkip = opt_arg();
            break;
        case OPT_MD:
            if (!opt_md(opt_unknown(), &digest))
                goto opthelp;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();
    if (argc != 0) {
        BIO_printf(bio_err, "%s: Unknown parameter %s\n", prog, argv[0]);
        goto opthelp;
    }

    out = bio_open_default(outfile, "w");
    if (out == NULL)
        goto end;

    if (need_rand)
        app_RAND_load_file(NULL, 0);

    if (!app_passwd(passinarg, NULL, &passin, NULL)) {
        BIO_printf(bio_err, "Error getting password\n");
        goto end;
    }

    if (!X509_STORE_set_default_paths(ctx)) {
        ERR_print_errors(bio_err);
        goto end;
    }

    if (fkeyfile) {
        fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");
        if (fkey == NULL)
            goto end;
    }

    if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {
        CAkeyfile = CAfile;
    } else if ((CA_flag) && (CAkeyfile == NULL)) {
        BIO_printf(bio_err,

int help_main(int argc, char **argv)
{
    FUNCTION *fp;
    int i, nl;
    FUNC_TYPE tp;
    char *prog;
    HELP_CHOICE o;
    DISPLAY_COLUMNS dc;

    prog = opt_init(argc, argv, help_options);
    while ((o = opt_next()) != OPT_hEOF) {
        switch (o) {
        case OPT_hERR:
        case OPT_hEOF:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            return 1;
        case OPT_hHELP:
            opt_help(help_options);
            return 0;
        }
    }

    if (opt_num_rest() == 1) {
        char *new_argv[3];

        new_argv[0] = opt_rest()[0];
        new_argv[1] = "--help";
        new_argv[2] = NULL;
        return do_cmd(prog_init(), 2, new_argv);
    }
    if (opt_num_rest() != 0) {
        BIO_printf(bio_err, "Usage: %s\n", prog);
        return 1;
    }

    calculate_columns(&dc);
    BIO_printf(bio_err, "Standard commands");
    i = 0;
    tp = FT_none;
    for (fp = functions; fp->name != NULL; fp++) {
        nl = 0;
        if (i++ % dc.columns == 0) {
            BIO_printf(bio_err, "\n");
            nl = 1;
        }
        if (fp->type != tp) {
            tp = fp->type;
            if (!nl)
                BIO_printf(bio_err, "\n");
            if (tp == FT_md) {
                i = 1;
                BIO_printf(bio_err,
                           "\nMessage Digest commands (see the `dgst' command for more details)\n");
            } else if (tp == FT_cipher) {
                i = 1;
                BIO_printf(bio_err,
                           "\nCipher commands (see the `enc' command for more details)\n");
            }
        }
        BIO_printf(bio_err, "%-*s", dc.width, fp->name);
    }
    BIO_printf(bio_err, "\n\n");
    return 0;
}

int rsautl_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL;
    ENGINE *e = NULL;
    EVP_PKEY *pkey = NULL;
    RSA *rsa = NULL;
    X509 *x;
    char *infile = NULL, *outfile = NULL, *keyfile = NULL;
    char *passinarg = NULL, *passin = NULL, *prog;
    char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
    unsigned char *rsa_in = NULL, *rsa_out = NULL, pad = RSA_PKCS1_PADDING;
    int rsa_inlen, keyformat = FORMAT_PEM, keysize, ret = 1;
    int rsa_outlen = 0, hexdump = 0, asn1parse = 0, need_priv = 0, rev = 0;
    OPTION_CHOICE o;

    prog = opt_init(argc, argv, rsautl_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(rsautl_options);
            ret = 0;
            goto end;
        case OPT_KEYFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_ASN1PARSE:
            asn1parse = 1;
            break;
        case OPT_HEXDUMP:
            hexdump = 1;
            break;
        case OPT_RAW:
            pad = RSA_NO_PADDING;
            break;
        case OPT_OAEP:
            pad = RSA_PKCS1_OAEP_PADDING;
            break;
        case OPT_SSL:
            pad = RSA_SSLV23_PADDING;
            break;
        case OPT_PKCS:
            pad = RSA_PKCS1_PADDING;
            break;
        case OPT_X931:
            pad = RSA_X931_PADDING;
            break;
        case OPT_SIGN:
            rsa_mode = RSA_SIGN;
            need_priv = 1;
            break;
        case OPT_VERIFY:
            rsa_mode = RSA_VERIFY;
            break;
        case OPT_REV:
            rev = 1;
            break;
        case OPT_ENCRYPT:
            rsa_mode = RSA_ENCRYPT;
            break;
        case OPT_DECRYPT:
            rsa_mode = RSA_DECRYPT;
            need_priv = 1;
            break;
        case OPT_PUBIN:
            key_type = KEY_PUBKEY;
            break;
        case OPT_CERTIN:
            key_type = KEY_CERT;
            break;
        case OPT_INKEY:
            keyfile = opt_arg();
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();

    if (need_priv && (key_type != KEY_PRIVKEY)) {
        BIO_printf(bio_err, "A private key is needed for this operation\n");
        goto end;
    }

//.........这里部分代码省略.........