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authorRĂ©mi Verschelde <remi@verschelde.fr>2016-10-16 11:52:09 +0200
committerGitHub <noreply@github.com>2016-10-16 11:52:09 +0200
commit89132224a651c0e0d4121270f63decb9a678ff88 (patch)
tree224a008705391b6e5b560d2c0426380651756383 /thirdparty/openssl/crypto/bio/bio_lib.c
parenteb8d19ba740c11acf0f26080405fc5cd827a2d41 (diff)
parente57042e8a93e4f3d65cc91633f5af0daedf69a2a (diff)
Merge pull request #6830 from akien-mga/thirdparty
Move most "drivers" as toggleable "modules" and split their thirdparty libraries in an own tree
Diffstat (limited to 'thirdparty/openssl/crypto/bio/bio_lib.c')
-rw-r--r--thirdparty/openssl/crypto/bio/bio_lib.c596
1 files changed, 596 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/bio/bio_lib.c b/thirdparty/openssl/crypto/bio/bio_lib.c
new file mode 100644
index 0000000000..07934f8a66
--- /dev/null
+++ b/thirdparty/openssl/crypto/bio/bio_lib.c
@@ -0,0 +1,596 @@
+/* crypto/bio/bio_lib.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <openssl/crypto.h>
+#include "cryptlib.h"
+#include <openssl/bio.h>
+#include <openssl/stack.h>
+
+BIO *BIO_new(BIO_METHOD *method)
+{
+ BIO *ret = NULL;
+
+ ret = (BIO *)OPENSSL_malloc(sizeof(BIO));
+ if (ret == NULL) {
+ BIOerr(BIO_F_BIO_NEW, ERR_R_MALLOC_FAILURE);
+ return (NULL);
+ }
+ if (!BIO_set(ret, method)) {
+ OPENSSL_free(ret);
+ ret = NULL;
+ }
+ return (ret);
+}
+
+int BIO_set(BIO *bio, BIO_METHOD *method)
+{
+ bio->method = method;
+ bio->callback = NULL;
+ bio->cb_arg = NULL;
+ bio->init = 0;
+ bio->shutdown = 1;
+ bio->flags = 0;
+ bio->retry_reason = 0;
+ bio->num = 0;
+ bio->ptr = NULL;
+ bio->prev_bio = NULL;
+ bio->next_bio = NULL;
+ bio->references = 1;
+ bio->num_read = 0L;
+ bio->num_write = 0L;
+ CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
+ if (method->create != NULL)
+ if (!method->create(bio)) {
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
+ return (0);
+ }
+ return (1);
+}
+
+int BIO_free(BIO *a)
+{
+ int i;
+
+ if (a == NULL)
+ return (0);
+
+ i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_BIO);
+#ifdef REF_PRINT
+ REF_PRINT("BIO", a);
+#endif
+ if (i > 0)
+ return (1);
+#ifdef REF_CHECK
+ if (i < 0) {
+ fprintf(stderr, "BIO_free, bad reference count\n");
+ abort();
+ }
+#endif
+ if ((a->callback != NULL) &&
+ ((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0))
+ return (i);
+
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);
+
+ if ((a->method != NULL) && (a->method->destroy != NULL))
+ a->method->destroy(a);
+ OPENSSL_free(a);
+ return (1);
+}
+
+void BIO_vfree(BIO *a)
+{
+ BIO_free(a);
+}
+
+void BIO_clear_flags(BIO *b, int flags)
+{
+ b->flags &= ~flags;
+}
+
+int BIO_test_flags(const BIO *b, int flags)
+{
+ return (b->flags & flags);
+}
+
+void BIO_set_flags(BIO *b, int flags)
+{
+ b->flags |= flags;
+}
+
+long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *,
+ int, long, long) {
+ return b->callback;
+}
+
+void BIO_set_callback(BIO *b,
+ long (*cb) (struct bio_st *, int, const char *, int,
+ long, long))
+{
+ b->callback = cb;
+}
+
+void BIO_set_callback_arg(BIO *b, char *arg)
+{
+ b->cb_arg = arg;
+}
+
+char *BIO_get_callback_arg(const BIO *b)
+{
+ return b->cb_arg;
+}
+
+const char *BIO_method_name(const BIO *b)
+{
+ return b->method->name;
+}
+
+int BIO_method_type(const BIO *b)
+{
+ return b->method->type;
+}
+
+int BIO_read(BIO *b, void *out, int outl)
+{
+ int i;
+ long (*cb) (BIO *, int, const char *, int, long, long);
+
+ if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL)) {
+ BIOerr(BIO_F_BIO_READ, BIO_R_UNSUPPORTED_METHOD);
+ return (-2);
+ }
+
+ cb = b->callback;
+ if ((cb != NULL) &&
+ ((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0))
+ return (i);
+
+ if (!b->init) {
+ BIOerr(BIO_F_BIO_READ, BIO_R_UNINITIALIZED);
+ return (-2);
+ }
+
+ i = b->method->bread(b, out, outl);
+
+ if (i > 0)
+ b->num_read += (unsigned long)i;
+
+ if (cb != NULL)
+ i = (int)cb(b, BIO_CB_READ | BIO_CB_RETURN, out, outl, 0L, (long)i);
+ return (i);
+}
+
+int BIO_write(BIO *b, const void *in, int inl)
+{
+ int i;
+ long (*cb) (BIO *, int, const char *, int, long, long);
+
+ if (b == NULL)
+ return (0);
+
+ cb = b->callback;
+ if ((b->method == NULL) || (b->method->bwrite == NULL)) {
+ BIOerr(BIO_F_BIO_WRITE, BIO_R_UNSUPPORTED_METHOD);
+ return (-2);
+ }
+
+ if ((cb != NULL) &&
+ ((i = (int)cb(b, BIO_CB_WRITE, in, inl, 0L, 1L)) <= 0))
+ return (i);
+
+ if (!b->init) {
+ BIOerr(BIO_F_BIO_WRITE, BIO_R_UNINITIALIZED);
+ return (-2);
+ }
+
+ i = b->method->bwrite(b, in, inl);
+
+ if (i > 0)
+ b->num_write += (unsigned long)i;
+
+ if (cb != NULL)
+ i = (int)cb(b, BIO_CB_WRITE | BIO_CB_RETURN, in, inl, 0L, (long)i);
+ return (i);
+}
+
+int BIO_puts(BIO *b, const char *in)
+{
+ int i;
+ long (*cb) (BIO *, int, const char *, int, long, long);
+
+ if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL)) {
+ BIOerr(BIO_F_BIO_PUTS, BIO_R_UNSUPPORTED_METHOD);
+ return (-2);
+ }
+
+ cb = b->callback;
+
+ if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_PUTS, in, 0, 0L, 1L)) <= 0))
+ return (i);
+
+ if (!b->init) {
+ BIOerr(BIO_F_BIO_PUTS, BIO_R_UNINITIALIZED);
+ return (-2);
+ }
+
+ i = b->method->bputs(b, in);
+
+ if (i > 0)
+ b->num_write += (unsigned long)i;
+
+ if (cb != NULL)
+ i = (int)cb(b, BIO_CB_PUTS | BIO_CB_RETURN, in, 0, 0L, (long)i);
+ return (i);
+}
+
+int BIO_gets(BIO *b, char *in, int inl)
+{
+ int i;
+ long (*cb) (BIO *, int, const char *, int, long, long);
+
+ if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL)) {
+ BIOerr(BIO_F_BIO_GETS, BIO_R_UNSUPPORTED_METHOD);
+ return (-2);
+ }
+
+ cb = b->callback;
+
+ if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_GETS, in, inl, 0L, 1L)) <= 0))
+ return (i);
+
+ if (!b->init) {
+ BIOerr(BIO_F_BIO_GETS, BIO_R_UNINITIALIZED);
+ return (-2);
+ }
+
+ i = b->method->bgets(b, in, inl);
+
+ if (cb != NULL)
+ i = (int)cb(b, BIO_CB_GETS | BIO_CB_RETURN, in, inl, 0L, (long)i);
+ return (i);
+}
+
+int BIO_indent(BIO *b, int indent, int max)
+{
+ if (indent < 0)
+ indent = 0;
+ if (indent > max)
+ indent = max;
+ while (indent--)
+ if (BIO_puts(b, " ") != 1)
+ return 0;
+ return 1;
+}
+
+long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg)
+{
+ int i;
+
+ i = iarg;
+ return (BIO_ctrl(b, cmd, larg, (char *)&i));
+}
+
+char *BIO_ptr_ctrl(BIO *b, int cmd, long larg)
+{
+ char *p = NULL;
+
+ if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0)
+ return (NULL);
+ else
+ return (p);
+}
+
+long BIO_ctrl(BIO *b, int cmd, long larg, void *parg)
+{
+ long ret;
+ long (*cb) (BIO *, int, const char *, int, long, long);
+
+ if (b == NULL)
+ return (0);
+
+ if ((b->method == NULL) || (b->method->ctrl == NULL)) {
+ BIOerr(BIO_F_BIO_CTRL, BIO_R_UNSUPPORTED_METHOD);
+ return (-2);
+ }
+
+ cb = b->callback;
+
+ if ((cb != NULL) &&
+ ((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0))
+ return (ret);
+
+ ret = b->method->ctrl(b, cmd, larg, parg);
+
+ if (cb != NULL)
+ ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, parg, cmd, larg, ret);
+ return (ret);
+}
+
+long BIO_callback_ctrl(BIO *b, int cmd,
+ void (*fp) (struct bio_st *, int, const char *, int,
+ long, long))
+{
+ long ret;
+ long (*cb) (BIO *, int, const char *, int, long, long);
+
+ if (b == NULL)
+ return (0);
+
+ if ((b->method == NULL) || (b->method->callback_ctrl == NULL)) {
+ BIOerr(BIO_F_BIO_CALLBACK_CTRL, BIO_R_UNSUPPORTED_METHOD);
+ return (-2);
+ }
+
+ cb = b->callback;
+
+ if ((cb != NULL) &&
+ ((ret = cb(b, BIO_CB_CTRL, (void *)&fp, cmd, 0, 1L)) <= 0))
+ return (ret);
+
+ ret = b->method->callback_ctrl(b, cmd, fp);
+
+ if (cb != NULL)
+ ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, (void *)&fp, cmd, 0, ret);
+ return (ret);
+}
+
+/*
+ * It is unfortunate to duplicate in functions what the BIO_(w)pending macros
+ * do; but those macros have inappropriate return type, and for interfacing
+ * from other programming languages, C macros aren't much of a help anyway.
+ */
+size_t BIO_ctrl_pending(BIO *bio)
+{
+ return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL);
+}
+
+size_t BIO_ctrl_wpending(BIO *bio)
+{
+ return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL);
+}
+
+/* put the 'bio' on the end of b's list of operators */
+BIO *BIO_push(BIO *b, BIO *bio)
+{
+ BIO *lb;
+
+ if (b == NULL)
+ return (bio);
+ lb = b;
+ while (lb->next_bio != NULL)
+ lb = lb->next_bio;
+ lb->next_bio = bio;
+ if (bio != NULL)
+ bio->prev_bio = lb;
+ /* called to do internal processing */
+ BIO_ctrl(b, BIO_CTRL_PUSH, 0, lb);
+ return (b);
+}
+
+/* Remove the first and return the rest */
+BIO *BIO_pop(BIO *b)
+{
+ BIO *ret;
+
+ if (b == NULL)
+ return (NULL);
+ ret = b->next_bio;
+
+ BIO_ctrl(b, BIO_CTRL_POP, 0, b);
+
+ if (b->prev_bio != NULL)
+ b->prev_bio->next_bio = b->next_bio;
+ if (b->next_bio != NULL)
+ b->next_bio->prev_bio = b->prev_bio;
+
+ b->next_bio = NULL;
+ b->prev_bio = NULL;
+ return (ret);
+}
+
+BIO *BIO_get_retry_BIO(BIO *bio, int *reason)
+{
+ BIO *b, *last;
+
+ b = last = bio;
+ for (;;) {
+ if (!BIO_should_retry(b))
+ break;
+ last = b;
+ b = b->next_bio;
+ if (b == NULL)
+ break;
+ }
+ if (reason != NULL)
+ *reason = last->retry_reason;
+ return (last);
+}
+
+int BIO_get_retry_reason(BIO *bio)
+{
+ return (bio->retry_reason);
+}
+
+BIO *BIO_find_type(BIO *bio, int type)
+{
+ int mt, mask;
+
+ if (!bio)
+ return NULL;
+ mask = type & 0xff;
+ do {
+ if (bio->method != NULL) {
+ mt = bio->method->type;
+
+ if (!mask) {
+ if (mt & type)
+ return (bio);
+ } else if (mt == type)
+ return (bio);
+ }
+ bio = bio->next_bio;
+ } while (bio != NULL);
+ return (NULL);
+}
+
+BIO *BIO_next(BIO *b)
+{
+ if (!b)
+ return NULL;
+ return b->next_bio;
+}
+
+void BIO_free_all(BIO *bio)
+{
+ BIO *b;
+ int ref;
+
+ while (bio != NULL) {
+ b = bio;
+ ref = b->references;
+ bio = bio->next_bio;
+ BIO_free(b);
+ /* Since ref count > 1, don't free anyone else. */
+ if (ref > 1)
+ break;
+ }
+}
+
+BIO *BIO_dup_chain(BIO *in)
+{
+ BIO *ret = NULL, *eoc = NULL, *bio, *new_bio;
+
+ for (bio = in; bio != NULL; bio = bio->next_bio) {
+ if ((new_bio = BIO_new(bio->method)) == NULL)
+ goto err;
+ new_bio->callback = bio->callback;
+ new_bio->cb_arg = bio->cb_arg;
+ new_bio->init = bio->init;
+ new_bio->shutdown = bio->shutdown;
+ new_bio->flags = bio->flags;
+
+ /* This will let SSL_s_sock() work with stdin/stdout */
+ new_bio->num = bio->num;
+
+ if (!BIO_dup_state(bio, (char *)new_bio)) {
+ BIO_free(new_bio);
+ goto err;
+ }
+
+ /* copy app data */
+ if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO, &new_bio->ex_data,
+ &bio->ex_data)) {
+ BIO_free(new_bio);
+ goto err;
+ }
+
+ if (ret == NULL) {
+ eoc = new_bio;
+ ret = eoc;
+ } else {
+ BIO_push(eoc, new_bio);
+ eoc = new_bio;
+ }
+ }
+ return (ret);
+ err:
+ BIO_free_all(ret);
+
+ return (NULL);
+}
+
+void BIO_copy_next_retry(BIO *b)
+{
+ BIO_set_flags(b, BIO_get_retry_flags(b->next_bio));
+ b->retry_reason = b->next_bio->retry_reason;
+}
+
+int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+ CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
+{
+ return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, argl, argp,
+ new_func, dup_func, free_func);
+}
+
+int BIO_set_ex_data(BIO *bio, int idx, void *data)
+{
+ return (CRYPTO_set_ex_data(&(bio->ex_data), idx, data));
+}
+
+void *BIO_get_ex_data(BIO *bio, int idx)
+{
+ return (CRYPTO_get_ex_data(&(bio->ex_data), idx));
+}
+
+unsigned long BIO_number_read(BIO *bio)
+{
+ if (bio)
+ return bio->num_read;
+ return 0;
+}
+
+unsigned long BIO_number_written(BIO *bio)
+{
+ if (bio)
+ return bio->num_write;
+ return 0;
+}
+
+IMPLEMENT_STACK_OF(BIO)