summaryrefslogtreecommitdiff
path: root/thirdparty/openssl/crypto/bio/bf_buff.c
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/openssl/crypto/bio/bf_buff.c')
-rw-r--r--thirdparty/openssl/crypto/bio/bf_buff.c517
1 files changed, 0 insertions, 517 deletions
diff --git a/thirdparty/openssl/crypto/bio/bf_buff.c b/thirdparty/openssl/crypto/bio/bf_buff.c
deleted file mode 100644
index 478fa16a07..0000000000
--- a/thirdparty/openssl/crypto/bio/bf_buff.c
+++ /dev/null
@@ -1,517 +0,0 @@
-/* crypto/bio/bf_buff.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 "cryptlib.h"
-#include <openssl/bio.h>
-
-static int buffer_write(BIO *h, const char *buf, int num);
-static int buffer_read(BIO *h, char *buf, int size);
-static int buffer_puts(BIO *h, const char *str);
-static int buffer_gets(BIO *h, char *str, int size);
-static long buffer_ctrl(BIO *h, int cmd, long arg1, void *arg2);
-static int buffer_new(BIO *h);
-static int buffer_free(BIO *data);
-static long buffer_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
-#define DEFAULT_BUFFER_SIZE 4096
-
-static BIO_METHOD methods_buffer = {
- BIO_TYPE_BUFFER,
- "buffer",
- buffer_write,
- buffer_read,
- buffer_puts,
- buffer_gets,
- buffer_ctrl,
- buffer_new,
- buffer_free,
- buffer_callback_ctrl,
-};
-
-BIO_METHOD *BIO_f_buffer(void)
-{
- return (&methods_buffer);
-}
-
-static int buffer_new(BIO *bi)
-{
- BIO_F_BUFFER_CTX *ctx;
-
- ctx = (BIO_F_BUFFER_CTX *)OPENSSL_malloc(sizeof(BIO_F_BUFFER_CTX));
- if (ctx == NULL)
- return (0);
- ctx->ibuf = (char *)OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
- if (ctx->ibuf == NULL) {
- OPENSSL_free(ctx);
- return (0);
- }
- ctx->obuf = (char *)OPENSSL_malloc(DEFAULT_BUFFER_SIZE);
- if (ctx->obuf == NULL) {
- OPENSSL_free(ctx->ibuf);
- OPENSSL_free(ctx);
- return (0);
- }
- ctx->ibuf_size = DEFAULT_BUFFER_SIZE;
- ctx->obuf_size = DEFAULT_BUFFER_SIZE;
- ctx->ibuf_len = 0;
- ctx->ibuf_off = 0;
- ctx->obuf_len = 0;
- ctx->obuf_off = 0;
-
- bi->init = 1;
- bi->ptr = (char *)ctx;
- bi->flags = 0;
- return (1);
-}
-
-static int buffer_free(BIO *a)
-{
- BIO_F_BUFFER_CTX *b;
-
- if (a == NULL)
- return (0);
- b = (BIO_F_BUFFER_CTX *)a->ptr;
- if (b->ibuf != NULL)
- OPENSSL_free(b->ibuf);
- if (b->obuf != NULL)
- OPENSSL_free(b->obuf);
- OPENSSL_free(a->ptr);
- a->ptr = NULL;
- a->init = 0;
- a->flags = 0;
- return (1);
-}
-
-static int buffer_read(BIO *b, char *out, int outl)
-{
- int i, num = 0;
- BIO_F_BUFFER_CTX *ctx;
-
- if (out == NULL)
- return (0);
- ctx = (BIO_F_BUFFER_CTX *)b->ptr;
-
- if ((ctx == NULL) || (b->next_bio == NULL))
- return (0);
- num = 0;
- BIO_clear_retry_flags(b);
-
- start:
- i = ctx->ibuf_len;
- /* If there is stuff left over, grab it */
- if (i != 0) {
- if (i > outl)
- i = outl;
- memcpy(out, &(ctx->ibuf[ctx->ibuf_off]), i);
- ctx->ibuf_off += i;
- ctx->ibuf_len -= i;
- num += i;
- if (outl == i)
- return (num);
- outl -= i;
- out += i;
- }
-
- /*
- * We may have done a partial read. try to do more. We have nothing in
- * the buffer. If we get an error and have read some data, just return it
- * and let them retry to get the error again. copy direct to parent
- * address space
- */
- if (outl > ctx->ibuf_size) {
- for (;;) {
- i = BIO_read(b->next_bio, out, outl);
- if (i <= 0) {
- BIO_copy_next_retry(b);
- if (i < 0)
- return ((num > 0) ? num : i);
- if (i == 0)
- return (num);
- }
- num += i;
- if (outl == i)
- return (num);
- out += i;
- outl -= i;
- }
- }
- /* else */
-
- /* we are going to be doing some buffering */
- i = BIO_read(b->next_bio, ctx->ibuf, ctx->ibuf_size);
- if (i <= 0) {
- BIO_copy_next_retry(b);
- if (i < 0)
- return ((num > 0) ? num : i);
- if (i == 0)
- return (num);
- }
- ctx->ibuf_off = 0;
- ctx->ibuf_len = i;
-
- /* Lets re-read using ourselves :-) */
- goto start;
-}
-
-static int buffer_write(BIO *b, const char *in, int inl)
-{
- int i, num = 0;
- BIO_F_BUFFER_CTX *ctx;
-
- if ((in == NULL) || (inl <= 0))
- return (0);
- ctx = (BIO_F_BUFFER_CTX *)b->ptr;
- if ((ctx == NULL) || (b->next_bio == NULL))
- return (0);
-
- BIO_clear_retry_flags(b);
- start:
- i = ctx->obuf_size - (ctx->obuf_len + ctx->obuf_off);
- /* add to buffer and return */
- if (i >= inl) {
- memcpy(&(ctx->obuf[ctx->obuf_off + ctx->obuf_len]), in, inl);
- ctx->obuf_len += inl;
- return (num + inl);
- }
- /* else */
- /* stuff already in buffer, so add to it first, then flush */
- if (ctx->obuf_len != 0) {
- if (i > 0) { /* lets fill it up if we can */
- memcpy(&(ctx->obuf[ctx->obuf_off + ctx->obuf_len]), in, i);
- in += i;
- inl -= i;
- num += i;
- ctx->obuf_len += i;
- }
- /* we now have a full buffer needing flushing */
- for (;;) {
- i = BIO_write(b->next_bio, &(ctx->obuf[ctx->obuf_off]),
- ctx->obuf_len);
- if (i <= 0) {
- BIO_copy_next_retry(b);
-
- if (i < 0)
- return ((num > 0) ? num : i);
- if (i == 0)
- return (num);
- }
- ctx->obuf_off += i;
- ctx->obuf_len -= i;
- if (ctx->obuf_len == 0)
- break;
- }
- }
- /*
- * we only get here if the buffer has been flushed and we still have
- * stuff to write
- */
- ctx->obuf_off = 0;
-
- /* we now have inl bytes to write */
- while (inl >= ctx->obuf_size) {
- i = BIO_write(b->next_bio, in, inl);
- if (i <= 0) {
- BIO_copy_next_retry(b);
- if (i < 0)
- return ((num > 0) ? num : i);
- if (i == 0)
- return (num);
- }
- num += i;
- in += i;
- inl -= i;
- if (inl == 0)
- return (num);
- }
-
- /*
- * copy the rest into the buffer since we have only a small amount left
- */
- goto start;
-}
-
-static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
-{
- BIO *dbio;
- BIO_F_BUFFER_CTX *ctx;
- long ret = 1;
- char *p1, *p2;
- int r, i, *ip;
- int ibs, obs;
-
- ctx = (BIO_F_BUFFER_CTX *)b->ptr;
-
- switch (cmd) {
- case BIO_CTRL_RESET:
- ctx->ibuf_off = 0;
- ctx->ibuf_len = 0;
- ctx->obuf_off = 0;
- ctx->obuf_len = 0;
- if (b->next_bio == NULL)
- return (0);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_CTRL_INFO:
- ret = (long)ctx->obuf_len;
- break;
- case BIO_C_GET_BUFF_NUM_LINES:
- ret = 0;
- p1 = ctx->ibuf;
- for (i = 0; i < ctx->ibuf_len; i++) {
- if (p1[ctx->ibuf_off + i] == '\n')
- ret++;
- }
- break;
- case BIO_CTRL_WPENDING:
- ret = (long)ctx->obuf_len;
- if (ret == 0) {
- if (b->next_bio == NULL)
- return (0);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- }
- break;
- case BIO_CTRL_PENDING:
- ret = (long)ctx->ibuf_len;
- if (ret == 0) {
- if (b->next_bio == NULL)
- return (0);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- }
- break;
- case BIO_C_SET_BUFF_READ_DATA:
- if (num > ctx->ibuf_size) {
- p1 = OPENSSL_malloc((int)num);
- if (p1 == NULL)
- goto malloc_error;
- if (ctx->ibuf != NULL)
- OPENSSL_free(ctx->ibuf);
- ctx->ibuf = p1;
- }
- ctx->ibuf_off = 0;
- ctx->ibuf_len = (int)num;
- memcpy(ctx->ibuf, ptr, (int)num);
- ret = 1;
- break;
- case BIO_C_SET_BUFF_SIZE:
- if (ptr != NULL) {
- ip = (int *)ptr;
- if (*ip == 0) {
- ibs = (int)num;
- obs = ctx->obuf_size;
- } else { /* if (*ip == 1) */
-
- ibs = ctx->ibuf_size;
- obs = (int)num;
- }
- } else {
- ibs = (int)num;
- obs = (int)num;
- }
- p1 = ctx->ibuf;
- p2 = ctx->obuf;
- if ((ibs > DEFAULT_BUFFER_SIZE) && (ibs != ctx->ibuf_size)) {
- p1 = (char *)OPENSSL_malloc((int)num);
- if (p1 == NULL)
- goto malloc_error;
- }
- if ((obs > DEFAULT_BUFFER_SIZE) && (obs != ctx->obuf_size)) {
- p2 = (char *)OPENSSL_malloc((int)num);
- if (p2 == NULL) {
- if (p1 != ctx->ibuf)
- OPENSSL_free(p1);
- goto malloc_error;
- }
- }
- if (ctx->ibuf != p1) {
- OPENSSL_free(ctx->ibuf);
- ctx->ibuf = p1;
- ctx->ibuf_off = 0;
- ctx->ibuf_len = 0;
- ctx->ibuf_size = ibs;
- }
- if (ctx->obuf != p2) {
- OPENSSL_free(ctx->obuf);
- ctx->obuf = p2;
- ctx->obuf_off = 0;
- ctx->obuf_len = 0;
- ctx->obuf_size = obs;
- }
- break;
- case BIO_C_DO_STATE_MACHINE:
- if (b->next_bio == NULL)
- return (0);
- BIO_clear_retry_flags(b);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- BIO_copy_next_retry(b);
- break;
-
- case BIO_CTRL_FLUSH:
- if (b->next_bio == NULL)
- return (0);
- if (ctx->obuf_len <= 0) {
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- }
-
- for (;;) {
- BIO_clear_retry_flags(b);
- if (ctx->obuf_len > 0) {
- r = BIO_write(b->next_bio,
- &(ctx->obuf[ctx->obuf_off]), ctx->obuf_len);
-#if 0
- fprintf(stderr, "FLUSH [%3d] %3d -> %3d\n", ctx->obuf_off,
- ctx->obuf_len, r);
-#endif
- BIO_copy_next_retry(b);
- if (r <= 0)
- return ((long)r);
- ctx->obuf_off += r;
- ctx->obuf_len -= r;
- } else {
- ctx->obuf_len = 0;
- ctx->obuf_off = 0;
- ret = 1;
- break;
- }
- }
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_CTRL_DUP:
- dbio = (BIO *)ptr;
- if (!BIO_set_read_buffer_size(dbio, ctx->ibuf_size) ||
- !BIO_set_write_buffer_size(dbio, ctx->obuf_size))
- ret = 0;
- break;
- default:
- if (b->next_bio == NULL)
- return (0);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- }
- return (ret);
- malloc_error:
- BIOerr(BIO_F_BUFFER_CTRL, ERR_R_MALLOC_FAILURE);
- return (0);
-}
-
-static long buffer_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
-{
- long ret = 1;
-
- if (b->next_bio == NULL)
- return (0);
- switch (cmd) {
- default:
- ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
- break;
- }
- return (ret);
-}
-
-static int buffer_gets(BIO *b, char *buf, int size)
-{
- BIO_F_BUFFER_CTX *ctx;
- int num = 0, i, flag;
- char *p;
-
- ctx = (BIO_F_BUFFER_CTX *)b->ptr;
- size--; /* reserve space for a '\0' */
- BIO_clear_retry_flags(b);
-
- for (;;) {
- if (ctx->ibuf_len > 0) {
- p = &(ctx->ibuf[ctx->ibuf_off]);
- flag = 0;
- for (i = 0; (i < ctx->ibuf_len) && (i < size); i++) {
- *(buf++) = p[i];
- if (p[i] == '\n') {
- flag = 1;
- i++;
- break;
- }
- }
- num += i;
- size -= i;
- ctx->ibuf_len -= i;
- ctx->ibuf_off += i;
- if (flag || size == 0) {
- *buf = '\0';
- return (num);
- }
- } else { /* read another chunk */
-
- i = BIO_read(b->next_bio, ctx->ibuf, ctx->ibuf_size);
- if (i <= 0) {
- BIO_copy_next_retry(b);
- *buf = '\0';
- if (i < 0)
- return ((num > 0) ? num : i);
- if (i == 0)
- return (num);
- }
- ctx->ibuf_len = i;
- ctx->ibuf_off = 0;
- }
- }
-}
-
-static int buffer_puts(BIO *b, const char *str)
-{
- return (buffer_write(b, str, strlen(str)));
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 06:21:51 +0000