ext/openssl/ossl_bio.c

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/*
 * $Id: ossl_bio.c 27437 2010-04-22 08:04:13Z nobu $
 * 'OpenSSL for Ruby' team members
 * Copyright (C) 2003
 * All rights reserved.
 */
/*
 * This program is licenced under the same licence as Ruby.
 * (See the file 'LICENCE'.)
 */
#include "ossl.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

BIO *
ossl_obj2bio(VALUE obj)
{
    BIO *bio;

    if (TYPE(obj) == T_FILE) {
        rb_io_t *fptr;
        FILE *fp;
        int fd;

        GetOpenFile(obj, fptr);
        rb_io_check_readable(fptr);
        if ((fd = dup(FPTR_TO_FD(fptr))) < 0){
            rb_sys_fail(0);
        }
        if (!(fp = fdopen(fd, "r"))){
            close(fd);
            rb_sys_fail(0);
        }
        if (!(bio = BIO_new_fp(fp, BIO_CLOSE))){
            fclose(fp);
            ossl_raise(eOSSLError, NULL);
        }
    }
    else {
        StringValue(obj);
        bio = BIO_new_mem_buf(RSTRING_PTR(obj), RSTRING_LEN(obj));
        if (!bio) ossl_raise(eOSSLError, NULL);
    }

    return bio;
}

BIO *
ossl_protect_obj2bio(VALUE obj, int *status)
{
     BIO *ret = NULL;
     ret = (BIO*)rb_protect((VALUE(*)_((VALUE)))ossl_obj2bio, obj, status);
     return ret;
}

VALUE
ossl_membio2str0(BIO *bio)
{
    VALUE ret;
    BUF_MEM *buf;

    BIO_get_mem_ptr(bio, &buf);
    ret = rb_str_new(buf->data, buf->length);

    return ret;
}

VALUE
ossl_protect_membio2str(BIO *bio, int *status)
{
    return rb_protect((VALUE(*)_((VALUE)))ossl_membio2str0, (VALUE)bio, status);
}

VALUE
ossl_membio2str(BIO *bio)
{
    VALUE ret;
    int status = 0;

    ret = ossl_protect_membio2str(bio, &status);
    BIO_free(bio);
    if(status) rb_jump_tag(status);

    return ret;
}