summaryrefslogtreecommitdiff
path: root/Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c
diff options
context:
space:
mode:
authorMathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com>2017-09-13 12:09:40 -0700
committerMathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com>2017-09-13 12:09:40 -0700
commitb6f94dbeacfc6f0a507413096189304c58dbe66c (patch)
treebce8c7db22209078618294c51d95a0c033aec7d9 /Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c
parent25f7fd1fb389a5f6356f353d16c5ead80dac6bbc (diff)
downloadefi-boot-shim-upstream/13_git1505328970.9c1c35c5.tar.gz
efi-boot-shim-upstream/13_git1505328970.9c1c35c5.zip
New upstream version 13~git1505328970.9c1c35c5upstream/13_git1505328970.9c1c35c5
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c')
-rw-r--r--Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c319
1 files changed, 0 insertions, 319 deletions
diff --git a/Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c b/Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c
deleted file mode 100644
index b3c2b5ee..00000000
--- a/Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
- * Copyright 1995-2016 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 <stdio.h>
-#include <errno.h>
-#include "bio_lcl.h"
-#include "internal/cryptlib.h"
-#include <openssl/evp.h>
-
-static int linebuffer_write(BIO *h, const char *buf, int num);
-static int linebuffer_read(BIO *h, char *buf, int size);
-static int linebuffer_puts(BIO *h, const char *str);
-static int linebuffer_gets(BIO *h, char *str, int size);
-static long linebuffer_ctrl(BIO *h, int cmd, long arg1, void *arg2);
-static int linebuffer_new(BIO *h);
-static int linebuffer_free(BIO *data);
-static long linebuffer_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
-
-/* A 10k maximum should be enough for most purposes */
-#define DEFAULT_LINEBUFFER_SIZE 1024*10
-
-/* #define DEBUG */
-
-static const BIO_METHOD methods_linebuffer = {
- BIO_TYPE_LINEBUFFER,
- "linebuffer",
- linebuffer_write,
- linebuffer_read,
- linebuffer_puts,
- linebuffer_gets,
- linebuffer_ctrl,
- linebuffer_new,
- linebuffer_free,
- linebuffer_callback_ctrl,
-};
-
-const BIO_METHOD *BIO_f_linebuffer(void)
-{
- return (&methods_linebuffer);
-}
-
-typedef struct bio_linebuffer_ctx_struct {
- char *obuf; /* the output char array */
- int obuf_size; /* how big is the output buffer */
- int obuf_len; /* how many bytes are in it */
-} BIO_LINEBUFFER_CTX;
-
-static int linebuffer_new(BIO *bi)
-{
- BIO_LINEBUFFER_CTX *ctx;
-
- ctx = OPENSSL_malloc(sizeof(*ctx));
- if (ctx == NULL)
- return (0);
- ctx->obuf = OPENSSL_malloc(DEFAULT_LINEBUFFER_SIZE);
- if (ctx->obuf == NULL) {
- OPENSSL_free(ctx);
- return (0);
- }
- ctx->obuf_size = DEFAULT_LINEBUFFER_SIZE;
- ctx->obuf_len = 0;
-
- bi->init = 1;
- bi->ptr = (char *)ctx;
- bi->flags = 0;
- return (1);
-}
-
-static int linebuffer_free(BIO *a)
-{
- BIO_LINEBUFFER_CTX *b;
-
- if (a == NULL)
- return (0);
- b = (BIO_LINEBUFFER_CTX *)a->ptr;
- OPENSSL_free(b->obuf);
- OPENSSL_free(a->ptr);
- a->ptr = NULL;
- a->init = 0;
- a->flags = 0;
- return (1);
-}
-
-static int linebuffer_read(BIO *b, char *out, int outl)
-{
- int ret = 0;
-
- if (out == NULL)
- return (0);
- if (b->next_bio == NULL)
- return (0);
- ret = BIO_read(b->next_bio, out, outl);
- BIO_clear_retry_flags(b);
- BIO_copy_next_retry(b);
- return (ret);
-}
-
-static int linebuffer_write(BIO *b, const char *in, int inl)
-{
- int i, num = 0, foundnl;
- BIO_LINEBUFFER_CTX *ctx;
-
- if ((in == NULL) || (inl <= 0))
- return (0);
- ctx = (BIO_LINEBUFFER_CTX *)b->ptr;
- if ((ctx == NULL) || (b->next_bio == NULL))
- return (0);
-
- BIO_clear_retry_flags(b);
-
- do {
- const char *p;
-
- for (p = in; p < in + inl && *p != '\n'; p++) ;
- if (*p == '\n') {
- p++;
- foundnl = 1;
- } else
- foundnl = 0;
-
- /*
- * If a NL was found and we already have text in the save buffer,
- * concatenate them and write
- */
- while ((foundnl || p - in > ctx->obuf_size - ctx->obuf_len)
- && ctx->obuf_len > 0) {
- int orig_olen = ctx->obuf_len;
-
- i = ctx->obuf_size - ctx->obuf_len;
- if (p - in > 0) {
- if (i >= p - in) {
- memcpy(&(ctx->obuf[ctx->obuf_len]), in, p - in);
- ctx->obuf_len += p - in;
- inl -= p - in;
- num += p - in;
- in = p;
- } else {
- memcpy(&(ctx->obuf[ctx->obuf_len]), in, i);
- ctx->obuf_len += i;
- inl -= i;
- in += i;
- num += i;
- }
- }
- i = BIO_write(b->next_bio, ctx->obuf, ctx->obuf_len);
- if (i <= 0) {
- ctx->obuf_len = orig_olen;
- BIO_copy_next_retry(b);
-
- if (i < 0)
- return ((num > 0) ? num : i);
- if (i == 0)
- return (num);
- }
- if (i < ctx->obuf_len)
- memmove(ctx->obuf, ctx->obuf + i, ctx->obuf_len - i);
- ctx->obuf_len -= i;
- }
-
- /*
- * Now that the save buffer is emptied, let's write the input buffer
- * if a NL was found and there is anything to write.
- */
- if ((foundnl || p - in > ctx->obuf_size) && p - in > 0) {
- i = BIO_write(b->next_bio, in, p - in);
- 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;
- }
- }
- while (foundnl && inl > 0);
- /*
- * We've written as much as we can. The rest of the input buffer, if
- * any, is text that doesn't and with a NL and therefore needs to be
- * saved for the next trip.
- */
- if (inl > 0) {
- memcpy(&(ctx->obuf[ctx->obuf_len]), in, inl);
- ctx->obuf_len += inl;
- num += inl;
- }
- return num;
-}
-
-static long linebuffer_ctrl(BIO *b, int cmd, long num, void *ptr)
-{
- BIO *dbio;
- BIO_LINEBUFFER_CTX *ctx;
- long ret = 1;
- char *p;
- int r;
- int obs;
-
- ctx = (BIO_LINEBUFFER_CTX *)b->ptr;
-
- switch (cmd) {
- case BIO_CTRL_RESET:
- 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_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_C_SET_BUFF_SIZE:
- obs = (int)num;
- p = ctx->obuf;
- if ((obs > DEFAULT_LINEBUFFER_SIZE) && (obs != ctx->obuf_size)) {
- p = OPENSSL_malloc((int)num);
- if (p == NULL)
- goto malloc_error;
- }
- if (ctx->obuf != p) {
- if (ctx->obuf_len > obs) {
- ctx->obuf_len = obs;
- }
- memcpy(p, ctx->obuf, ctx->obuf_len);
- OPENSSL_free(ctx->obuf);
- ctx->obuf = p;
- 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_len);
- BIO_copy_next_retry(b);
- if (r <= 0)
- return ((long)r);
- if (r < ctx->obuf_len)
- memmove(ctx->obuf, ctx->obuf + r, ctx->obuf_len - r);
- ctx->obuf_len -= r;
- } else {
- ctx->obuf_len = 0;
- break;
- }
- }
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
- break;
- case BIO_CTRL_DUP:
- dbio = (BIO *)ptr;
- if (!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_LINEBUFFER_CTRL, ERR_R_MALLOC_FAILURE);
- return (0);
-}
-
-static long linebuffer_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 linebuffer_gets(BIO *b, char *buf, int size)
-{
- if (b->next_bio == NULL)
- return (0);
- return (BIO_gets(b->next_bio, buf, size));
-}
-
-static int linebuffer_puts(BIO *b, const char *str)
-{
- return (linebuffer_write(b, str, strlen(str)));
-}