-/* 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.
+/*
+ * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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.]
- */
-
-/*-
- * 03-Dec-1997 rdenny@dc3.com Fix bug preventing use of stdin/stdout
- * with binary data (e.g. asn1parse -inform DER < xxx) under
- * Windows
+ * Licensed under the Apache License 2.0 (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
*/
-#ifndef HEADER_BSS_FILE_C
-# define HEADER_BSS_FILE_C
-
-# if defined(__linux) || defined(__sun) || defined(__hpux)
+#if defined(__linux) || defined(__sun) || defined(__hpux)
/*
* Following definition aliases fopen to fopen64 on above mentioned
* platforms. This makes it possible to open and sequentially access files
- * larger than 2GB from 32-bit application. It does not allow to traverse
+ * larger than 2GB from 32-bit application. It does not allow one to traverse
* them beyond 2GB with fseek/ftell, but on the other hand *no* 32-bit
* platform permits that, not with fseek/ftell. Not to mention that breaking
* 2GB limit for seeking would require surgery to *our* API. But sequential
* of 32-bit platforms which allow for sequential access of large files
* without extra "magic" comprise *BSD, Darwin, IRIX...
*/
-# ifndef _FILE_OFFSET_BITS
-# define _FILE_OFFSET_BITS 64
-# endif
+# ifndef _FILE_OFFSET_BITS
+# define _FILE_OFFSET_BITS 64
# endif
+#endif
-# include <stdio.h>
-# include <errno.h>
-# include "bio_lcl.h"
-# include <openssl/err.h>
+#include <stdio.h>
+#include <errno.h>
+#include "bio_local.h"
+#include <openssl/err.h>
-# if !defined(OPENSSL_NO_STDIO)
+#if !defined(OPENSSL_NO_STDIO)
static int file_write(BIO *h, const char *buf, int num);
static int file_read(BIO *h, char *buf, int size);
static const BIO_METHOD methods_filep = {
BIO_TYPE_FILE,
"FILE pointer",
+ bwrite_conv,
file_write,
+ bread_conv,
file_read,
file_puts,
file_gets,
file_ctrl,
file_new,
file_free,
- NULL,
+ NULL, /* file_callback_ctrl */
};
-static FILE *file_fopen(const char *filename, const char *mode)
-{
- FILE *file = NULL;
-
-# if defined(_WIN32) && defined(CP_UTF8)
- int sz, len_0 = (int)strlen(filename) + 1;
- DWORD flags;
-
- /*
- * Basically there are three cases to cover: a) filename is
- * pure ASCII string; b) actual UTF-8 encoded string and
- * c) locale-ized string, i.e. one containing 8-bit
- * characters that are meaningful in current system locale.
- * If filename is pure ASCII or real UTF-8 encoded string,
- * MultiByteToWideChar succeeds and _wfopen works. If
- * filename is locale-ized string, chances are that
- * MultiByteToWideChar fails reporting
- * ERROR_NO_UNICODE_TRANSLATION, in which case we fall
- * back to fopen...
- */
- if ((sz = MultiByteToWideChar(CP_UTF8, (flags = MB_ERR_INVALID_CHARS),
- filename, len_0, NULL, 0)) > 0 ||
- (GetLastError() == ERROR_INVALID_FLAGS &&
- (sz = MultiByteToWideChar(CP_UTF8, (flags = 0),
- filename, len_0, NULL, 0)) > 0)
- ) {
- WCHAR wmode[8];
- WCHAR *wfilename = _alloca(sz * sizeof(WCHAR));
-
- if (MultiByteToWideChar(CP_UTF8, flags,
- filename, len_0, wfilename, sz) &&
- MultiByteToWideChar(CP_UTF8, 0, mode, strlen(mode) + 1,
- wmode, OSSL_NELEM(wmode)) &&
- (file = _wfopen(wfilename, wmode)) == NULL &&
- (errno == ENOENT || errno == EBADF)
- ) {
- /*
- * UTF-8 decode succeeded, but no file, filename
- * could still have been locale-ized...
- */
- file = fopen(filename, mode);
- }
- } else if (GetLastError() == ERROR_NO_UNICODE_TRANSLATION) {
- file = fopen(filename, mode);
- }
-# else
- file = fopen(filename, mode);
-# endif
- return (file);
-}
-
BIO *BIO_new_file(const char *filename, const char *mode)
{
BIO *ret;
- FILE *file = file_fopen(filename, mode);
+ FILE *file = openssl_fopen(filename, mode);
int fp_flags = BIO_CLOSE;
if (strchr(mode, 'b') == NULL)
fp_flags |= BIO_FP_TEXT;
if (file == NULL) {
- SYSerr(SYS_F_FOPEN, get_last_sys_error());
- ERR_add_error_data(5, "fopen('", filename, "','", mode, "')");
- if (errno == ENOENT)
- BIOerr(BIO_F_BIO_NEW_FILE, BIO_R_NO_SUCH_FILE);
+ ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
+ "calling fopen(%s, %s)",
+ filename, mode);
+ if (errno == ENOENT
+#ifdef ENXIO
+ || errno == ENXIO
+#endif
+ )
+ ERR_raise(ERR_LIB_BIO, BIO_R_NO_SUCH_FILE);
else
- BIOerr(BIO_F_BIO_NEW_FILE, ERR_R_SYS_LIB);
- return (NULL);
+ ERR_raise(ERR_LIB_BIO, ERR_R_SYS_LIB);
+ return NULL;
}
if ((ret = BIO_new(BIO_s_file())) == NULL) {
fclose(file);
- return (NULL);
+ return NULL;
}
- BIO_clear_flags(ret, BIO_FLAGS_UPLINK); /* we did fopen -> we disengage
- * UPLINK */
+ /* we did fopen -> we disengage UPLINK */
+ BIO_clear_flags(ret, BIO_FLAGS_UPLINK_INTERNAL);
BIO_set_fp(ret, file, fp_flags);
- return (ret);
+ return ret;
}
BIO *BIO_new_fp(FILE *stream, int close_flag)
BIO *ret;
if ((ret = BIO_new(BIO_s_file())) == NULL)
- return (NULL);
+ return NULL;
/* redundant flag, left for documentation purposes */
- BIO_set_flags(ret, BIO_FLAGS_UPLINK);
+ BIO_set_flags(ret, BIO_FLAGS_UPLINK_INTERNAL);
BIO_set_fp(ret, stream, close_flag);
- return (ret);
+ return ret;
}
const BIO_METHOD *BIO_s_file(void)
{
- return (&methods_filep);
+ return &methods_filep;
}
static int file_new(BIO *bi)
bi->init = 0;
bi->num = 0;
bi->ptr = NULL;
- bi->flags = BIO_FLAGS_UPLINK; /* default to UPLINK */
- return (1);
+ bi->flags = BIO_FLAGS_UPLINK_INTERNAL; /* default to UPLINK */
+ return 1;
}
static int file_free(BIO *a)
{
if (a == NULL)
- return (0);
+ return 0;
if (a->shutdown) {
if ((a->init) && (a->ptr != NULL)) {
- if (a->flags & BIO_FLAGS_UPLINK)
+ if (a->flags & BIO_FLAGS_UPLINK_INTERNAL)
UP_fclose(a->ptr);
else
fclose(a->ptr);
a->ptr = NULL;
- a->flags = BIO_FLAGS_UPLINK;
+ a->flags = BIO_FLAGS_UPLINK_INTERNAL;
}
a->init = 0;
}
- return (1);
+ return 1;
}
static int file_read(BIO *b, char *out, int outl)
int ret = 0;
if (b->init && (out != NULL)) {
- if (b->flags & BIO_FLAGS_UPLINK)
+ if (b->flags & BIO_FLAGS_UPLINK_INTERNAL)
ret = UP_fread(out, 1, (int)outl, b->ptr);
else
ret = fread(out, 1, (int)outl, (FILE *)b->ptr);
if (ret == 0
- && (b->flags & BIO_FLAGS_UPLINK) ? UP_ferror((FILE *)b->ptr) :
- ferror((FILE *)b->ptr)) {
- SYSerr(SYS_F_FREAD, get_last_sys_error());
- BIOerr(BIO_F_FILE_READ, ERR_R_SYS_LIB);
+ && (b->flags & BIO_FLAGS_UPLINK_INTERNAL
+ ? UP_ferror((FILE *)b->ptr) : ferror((FILE *)b->ptr))) {
+ ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
+ "calling fread()");
+ ERR_raise(ERR_LIB_BIO, ERR_R_SYS_LIB);
ret = -1;
}
}
- return (ret);
+ return ret;
}
static int file_write(BIO *b, const char *in, int inl)
int ret = 0;
if (b->init && (in != NULL)) {
- if (b->flags & BIO_FLAGS_UPLINK)
+ if (b->flags & BIO_FLAGS_UPLINK_INTERNAL)
ret = UP_fwrite(in, (int)inl, 1, b->ptr);
else
ret = fwrite(in, (int)inl, 1, (FILE *)b->ptr);
ret = inl;
/* ret=fwrite(in,1,(int)inl,(FILE *)b->ptr); */
/*
- * according to Tim Hudson <tjh@cryptsoft.com>, the commented out
+ * according to Tim Hudson <tjh@openssl.org>, the commented out
* version above can cause 'inl' write calls under some stupid stdio
* implementations (VMS)
*/
}
- return (ret);
+ return ret;
}
static long file_ctrl(BIO *b, int cmd, long num, void *ptr)
FILE *fp = (FILE *)b->ptr;
FILE **fpp;
char p[4];
+ int st;
switch (cmd) {
case BIO_C_FILE_SEEK:
case BIO_CTRL_RESET:
- if (b->flags & BIO_FLAGS_UPLINK)
+ if (b->flags & BIO_FLAGS_UPLINK_INTERNAL)
ret = (long)UP_fseek(b->ptr, num, 0);
else
ret = (long)fseek(fp, num, 0);
break;
case BIO_CTRL_EOF:
- if (b->flags & BIO_FLAGS_UPLINK)
+ if (b->flags & BIO_FLAGS_UPLINK_INTERNAL)
ret = (long)UP_feof(fp);
else
ret = (long)feof(fp);
break;
case BIO_C_FILE_TELL:
case BIO_CTRL_INFO:
- if (b->flags & BIO_FLAGS_UPLINK)
+ if (b->flags & BIO_FLAGS_UPLINK_INTERNAL)
ret = UP_ftell(b->ptr);
else
ret = ftell(fp);
b->shutdown = (int)num & BIO_CLOSE;
b->ptr = ptr;
b->init = 1;
-# if BIO_FLAGS_UPLINK!=0
-# if defined(__MINGW32__) && defined(__MSVCRT__) && !defined(_IOB_ENTRIES)
-# define _IOB_ENTRIES 20
-# endif
+# if BIO_FLAGS_UPLINK_INTERNAL!=0
+# if defined(__MINGW32__) && defined(__MSVCRT__) && !defined(_IOB_ENTRIES)
+# define _IOB_ENTRIES 20
+# endif
/* Safety net to catch purely internal BIO_set_fp calls */
-# if defined(_MSC_VER) && _MSC_VER>=1900
+# if (defined(_MSC_VER) && _MSC_VER>=1900) || defined(__BORLANDC__)
if (ptr == stdin || ptr == stdout || ptr == stderr)
- BIO_clear_flags(b, BIO_FLAGS_UPLINK);
-# elif defined(_IOB_ENTRIES)
+ BIO_clear_flags(b, BIO_FLAGS_UPLINK_INTERNAL);
+# elif defined(_IOB_ENTRIES)
if ((size_t)ptr >= (size_t)stdin &&
(size_t)ptr < (size_t)(stdin + _IOB_ENTRIES))
- BIO_clear_flags(b, BIO_FLAGS_UPLINK);
-# endif
+ BIO_clear_flags(b, BIO_FLAGS_UPLINK_INTERNAL);
# endif
-# ifdef UP_fsetmod
- if (b->flags & BIO_FLAGS_UPLINK)
+# endif
+# ifdef UP_fsetmod
+ if (b->flags & BIO_FLAGS_UPLINK_INTERNAL)
UP_fsetmod(b->ptr, (char)((num & BIO_FP_TEXT) ? 't' : 'b'));
else
-# endif
+# endif
{
-# if defined(OPENSSL_SYS_WINDOWS)
+# if defined(OPENSSL_SYS_WINDOWS)
int fd = _fileno((FILE *)ptr);
if (num & BIO_FP_TEXT)
_setmode(fd, _O_TEXT);
else
_setmode(fd, _O_BINARY);
-# elif defined(OPENSSL_SYS_MSDOS)
+ /*
+ * Reports show that ftell() isn't trustable in text mode.
+ * This has been confirmed as a bug in the Universal C RTL, see
+ * https://developercommunity.visualstudio.com/content/problem/425878/fseek-ftell-fail-in-text-mode-for-unix-style-text.html
+ * The suggested work-around from Microsoft engineering is to
+ * turn off buffering until the bug is resolved.
+ */
+ if ((num & BIO_FP_TEXT) != 0)
+ setvbuf((FILE *)ptr, NULL, _IONBF, 0);
+# elif defined(OPENSSL_SYS_MSDOS)
int fd = fileno((FILE *)ptr);
/* Set correct text/binary mode */
if (num & BIO_FP_TEXT)
} else
_setmode(fd, _O_BINARY);
}
-# elif defined(OPENSSL_SYS_WIN32_CYGWIN)
+# elif defined(OPENSSL_SYS_WIN32_CYGWIN)
int fd = fileno((FILE *)ptr);
- if (num & BIO_FP_TEXT)
- setmode(fd, O_TEXT);
- else
+ if (!(num & BIO_FP_TEXT))
setmode(fd, O_BINARY);
-# endif
+# endif
}
break;
case BIO_C_SET_FILENAME:
b->shutdown = (int)num & BIO_CLOSE;
if (num & BIO_FP_APPEND) {
if (num & BIO_FP_READ)
- OPENSSL_strlcpy(p, "a+", sizeof p);
+ OPENSSL_strlcpy(p, "a+", sizeof(p));
else
- OPENSSL_strlcpy(p, "a", sizeof p);
+ OPENSSL_strlcpy(p, "a", sizeof(p));
} else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE))
- OPENSSL_strlcpy(p, "r+", sizeof p);
+ OPENSSL_strlcpy(p, "r+", sizeof(p));
else if (num & BIO_FP_WRITE)
- OPENSSL_strlcpy(p, "w", sizeof p);
+ OPENSSL_strlcpy(p, "w", sizeof(p));
else if (num & BIO_FP_READ)
- OPENSSL_strlcpy(p, "r", sizeof p);
+ OPENSSL_strlcpy(p, "r", sizeof(p));
else {
- BIOerr(BIO_F_FILE_CTRL, BIO_R_BAD_FOPEN_MODE);
+ ERR_raise(ERR_LIB_BIO, BIO_R_BAD_FOPEN_MODE);
ret = 0;
break;
}
-# if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32_CYGWIN)
+# if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS)
if (!(num & BIO_FP_TEXT))
- strcat(p, "b");
+ OPENSSL_strlcat(p, "b", sizeof(p));
else
- strcat(p, "t");
-# endif
- fp = file_fopen(ptr, p);
+ OPENSSL_strlcat(p, "t", sizeof(p));
+# elif defined(OPENSSL_SYS_WIN32_CYGWIN)
+ if (!(num & BIO_FP_TEXT))
+ OPENSSL_strlcat(p, "b", sizeof(p));
+# endif
+ fp = openssl_fopen(ptr, p);
if (fp == NULL) {
- SYSerr(SYS_F_FOPEN, get_last_sys_error());
- ERR_add_error_data(5, "fopen('", ptr, "','", p, "')");
- BIOerr(BIO_F_FILE_CTRL, ERR_R_SYS_LIB);
+ ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
+ "calling fopen(%s, %s)",
+ ptr, p);
+ ERR_raise(ERR_LIB_BIO, ERR_R_SYS_LIB);
ret = 0;
break;
}
b->ptr = fp;
b->init = 1;
- BIO_clear_flags(b, BIO_FLAGS_UPLINK); /* we did fopen -> we disengage
- * UPLINK */
+ /* we did fopen -> we disengage UPLINK */
+ BIO_clear_flags(b, BIO_FLAGS_UPLINK_INTERNAL);
break;
case BIO_C_GET_FILE_PTR:
/* the ptr parameter is actually a FILE ** in this case. */
b->shutdown = (int)num;
break;
case BIO_CTRL_FLUSH:
- if (b->flags & BIO_FLAGS_UPLINK)
- UP_fflush(b->ptr);
- else
- fflush((FILE *)b->ptr);
+ st = b->flags & BIO_FLAGS_UPLINK_INTERNAL
+ ? UP_fflush(b->ptr) : fflush((FILE *)b->ptr);
+ if (st == EOF) {
+ ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
+ "calling fflush()");
+ ERR_raise(ERR_LIB_BIO, ERR_R_SYS_LIB);
+ ret = 0;
+ }
break;
case BIO_CTRL_DUP:
ret = 1;
ret = 0;
break;
}
- return (ret);
+ return ret;
}
static int file_gets(BIO *bp, char *buf, int size)
int ret = 0;
buf[0] = '\0';
- if (bp->flags & BIO_FLAGS_UPLINK) {
+ if (bp->flags & BIO_FLAGS_UPLINK_INTERNAL) {
if (!UP_fgets(buf, size, bp->ptr))
goto err;
} else {
if (buf[0] != '\0')
ret = strlen(buf);
err:
- return (ret);
+ return ret;
}
static int file_puts(BIO *bp, const char *str)
n = strlen(str);
ret = file_write(bp, str, n);
- return (ret);
+ return ret;
}
#else
static const BIO_METHOD methods_filep = {
BIO_TYPE_FILE,
"FILE pointer",
+ bwrite_conv,
file_write,
+ bread_conv,
file_read,
file_puts,
file_gets,
file_ctrl,
file_new,
file_free,
- NULL,
+ NULL, /* file_callback_ctrl */
};
const BIO_METHOD *BIO_s_file(void)
{
- return (&methods_filep);
+ return &methods_filep;
}
BIO *BIO_new_file(const char *filename, const char *mode)
return NULL;
}
-# endif /* OPENSSL_NO_STDIO */
-
-#endif /* HEADER_BSS_FILE_C */
+#endif /* OPENSSL_NO_STDIO */
projects / openssl.git / blobdiff