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author | Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com> | 2017-09-13 12:09:40 -0700 |
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committer | Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com> | 2017-09-13 12:09:40 -0700 |
commit | b6f94dbeacfc6f0a507413096189304c58dbe66c (patch) | |
tree | bce8c7db22209078618294c51d95a0c033aec7d9 /Cryptlib/OpenSSL/crypto/bio/bf_lbuf.c | |
parent | 25f7fd1fb389a5f6356f353d16c5ead80dac6bbc (diff) | |
download | efi-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.c | 319 |
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))); -} |