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Diffstat (limited to 'thirdparty/openssl/crypto/bio/bss_file.c')
-rw-r--r--thirdparty/openssl/crypto/bio/bss_file.c472
1 files changed, 472 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/bio/bss_file.c b/thirdparty/openssl/crypto/bio/bss_file.c
new file mode 100644
index 0000000000..bfba93e62b
--- /dev/null
+++ b/thirdparty/openssl/crypto/bio/bss_file.c
@@ -0,0 +1,472 @@
+/* crypto/bio/bss_file.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.]
+ */
+
+/*-
+ * 03-Dec-1997 rdenny@dc3.com Fix bug preventing use of stdin/stdout
+ * with binary data (e.g. asn1parse -inform DER < xxx) under
+ * Windows
+ */
+
+#ifndef HEADER_BSS_FILE_C
+# define HEADER_BSS_FILE_C
+
+# 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
+ * 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
+ * access suffices for practical cases when you can run into large files,
+ * such as fingerprinting, so we can let API alone. For reference, the list
+ * 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
+# endif
+
+# include <stdio.h>
+# include <errno.h>
+# include "cryptlib.h"
+# include "bio_lcl.h"
+# include <openssl/err.h>
+
+# if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
+# include <nwfileio.h>
+# endif
+
+# if !defined(OPENSSL_NO_STDIO)
+
+static int MS_CALLBACK file_write(BIO *h, const char *buf, int num);
+static int MS_CALLBACK file_read(BIO *h, char *buf, int size);
+static int MS_CALLBACK file_puts(BIO *h, const char *str);
+static int MS_CALLBACK file_gets(BIO *h, char *str, int size);
+static long MS_CALLBACK file_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int MS_CALLBACK file_new(BIO *h);
+static int MS_CALLBACK file_free(BIO *data);
+static BIO_METHOD methods_filep = {
+ BIO_TYPE_FILE,
+ "FILE pointer",
+ file_write,
+ file_read,
+ file_puts,
+ file_gets,
+ file_ctrl,
+ file_new,
+ file_free,
+ NULL,
+};
+
+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, sizeof(wmode) / sizeof(wmode[0])) &&
+ (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);
+
+ 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);
+ else
+ BIOerr(BIO_F_BIO_NEW_FILE, ERR_R_SYS_LIB);
+ return (NULL);
+ }
+ if ((ret = BIO_new(BIO_s_file())) == NULL) {
+ fclose(file);
+ return (NULL);
+ }
+
+ BIO_clear_flags(ret, BIO_FLAGS_UPLINK); /* we did fopen -> we disengage
+ * UPLINK */
+ BIO_set_fp(ret, file, BIO_CLOSE);
+ return (ret);
+}
+
+BIO *BIO_new_fp(FILE *stream, int close_flag)
+{
+ BIO *ret;
+
+ if ((ret = BIO_new(BIO_s_file())) == NULL)
+ return (NULL);
+
+ BIO_set_flags(ret, BIO_FLAGS_UPLINK); /* redundant, left for
+ * documentation puposes */
+ BIO_set_fp(ret, stream, close_flag);
+ return (ret);
+}
+
+BIO_METHOD *BIO_s_file(void)
+{
+ return (&methods_filep);
+}
+
+static int MS_CALLBACK file_new(BIO *bi)
+{
+ bi->init = 0;
+ bi->num = 0;
+ bi->ptr = NULL;
+ bi->flags = BIO_FLAGS_UPLINK; /* default to UPLINK */
+ return (1);
+}
+
+static int MS_CALLBACK file_free(BIO *a)
+{
+ if (a == NULL)
+ return (0);
+ if (a->shutdown) {
+ if ((a->init) && (a->ptr != NULL)) {
+ if (a->flags & BIO_FLAGS_UPLINK)
+ UP_fclose(a->ptr);
+ else
+ fclose(a->ptr);
+ a->ptr = NULL;
+ a->flags = BIO_FLAGS_UPLINK;
+ }
+ a->init = 0;
+ }
+ return (1);
+}
+
+static int MS_CALLBACK file_read(BIO *b, char *out, int outl)
+{
+ int ret = 0;
+
+ if (b->init && (out != NULL)) {
+ if (b->flags & BIO_FLAGS_UPLINK)
+ 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);
+ ret = -1;
+ }
+ }
+ return (ret);
+}
+
+static int MS_CALLBACK file_write(BIO *b, const char *in, int inl)
+{
+ int ret = 0;
+
+ if (b->init && (in != NULL)) {
+ if (b->flags & BIO_FLAGS_UPLINK)
+ ret = UP_fwrite(in, (int)inl, 1, b->ptr);
+ else
+ ret = fwrite(in, (int)inl, 1, (FILE *)b->ptr);
+ if (ret)
+ ret = inl;
+ /* ret=fwrite(in,1,(int)inl,(FILE *)b->ptr); */
+ /*
+ * according to Tim Hudson <tjh@cryptsoft.com>, the commented out
+ * version above can cause 'inl' write calls under some stupid stdio
+ * implementations (VMS)
+ */
+ }
+ return (ret);
+}
+
+static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+ long ret = 1;
+ FILE *fp = (FILE *)b->ptr;
+ FILE **fpp;
+ char p[4];
+
+ switch (cmd) {
+ case BIO_C_FILE_SEEK:
+ case BIO_CTRL_RESET:
+ if (b->flags & BIO_FLAGS_UPLINK)
+ 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)
+ 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)
+ ret = UP_ftell(b->ptr);
+ else
+ ret = ftell(fp);
+ break;
+ case BIO_C_SET_FILE_PTR:
+ file_free(b);
+ 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 defined(_IOB_ENTRIES)
+ /* Safety net to catch purely internal BIO_set_fp calls */
+ if ((size_t)ptr >= (size_t)stdin &&
+ (size_t)ptr < (size_t)(stdin + _IOB_ENTRIES))
+ BIO_clear_flags(b, BIO_FLAGS_UPLINK);
+# endif
+# endif
+# ifdef UP_fsetmod
+ if (b->flags & BIO_FLAGS_UPLINK)
+ UP_fsetmod(b->ptr, (char)((num & BIO_FP_TEXT) ? 't' : 'b'));
+ else
+# endif
+ {
+# 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_NETWARE) && defined(NETWARE_CLIB)
+ int fd = fileno((FILE *)ptr);
+ /* Under CLib there are differences in file modes */
+ if (num & BIO_FP_TEXT)
+ setmode(fd, O_TEXT);
+ else
+ setmode(fd, O_BINARY);
+# elif defined(OPENSSL_SYS_MSDOS)
+ int fd = fileno((FILE *)ptr);
+ /* Set correct text/binary mode */
+ if (num & BIO_FP_TEXT)
+ _setmode(fd, _O_TEXT);
+ /* Dangerous to set stdin/stdout to raw (unless redirected) */
+ else {
+ if (fd == STDIN_FILENO || fd == STDOUT_FILENO) {
+ if (isatty(fd) <= 0)
+ _setmode(fd, _O_BINARY);
+ } else
+ _setmode(fd, _O_BINARY);
+ }
+# elif defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_WIN32_CYGWIN)
+ int fd = fileno((FILE *)ptr);
+ if (num & BIO_FP_TEXT)
+ setmode(fd, O_TEXT);
+ else
+ setmode(fd, O_BINARY);
+# endif
+ }
+ break;
+ case BIO_C_SET_FILENAME:
+ file_free(b);
+ b->shutdown = (int)num & BIO_CLOSE;
+ if (num & BIO_FP_APPEND) {
+ if (num & BIO_FP_READ)
+ BUF_strlcpy(p, "a+", sizeof p);
+ else
+ BUF_strlcpy(p, "a", sizeof p);
+ } else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE))
+ BUF_strlcpy(p, "r+", sizeof p);
+ else if (num & BIO_FP_WRITE)
+ BUF_strlcpy(p, "w", sizeof p);
+ else if (num & BIO_FP_READ)
+ BUF_strlcpy(p, "r", sizeof p);
+ else {
+ BIOerr(BIO_F_FILE_CTRL, BIO_R_BAD_FOPEN_MODE);
+ ret = 0;
+ break;
+ }
+# if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_WIN32_CYGWIN)
+ if (!(num & BIO_FP_TEXT))
+ strcat(p, "b");
+ else
+ strcat(p, "t");
+# endif
+# if defined(OPENSSL_SYS_NETWARE)
+ if (!(num & BIO_FP_TEXT))
+ strcat(p, "b");
+ else
+ strcat(p, "t");
+# endif
+ fp = file_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);
+ ret = 0;
+ break;
+ }
+ b->ptr = fp;
+ b->init = 1;
+ BIO_clear_flags(b, BIO_FLAGS_UPLINK); /* we did fopen -> we disengage
+ * UPLINK */
+ break;
+ case BIO_C_GET_FILE_PTR:
+ /* the ptr parameter is actually a FILE ** in this case. */
+ if (ptr != NULL) {
+ fpp = (FILE **)ptr;
+ *fpp = (FILE *)b->ptr;
+ }
+ break;
+ case BIO_CTRL_GET_CLOSE:
+ ret = (long)b->shutdown;
+ break;
+ case BIO_CTRL_SET_CLOSE:
+ b->shutdown = (int)num;
+ break;
+ case BIO_CTRL_FLUSH:
+ if (b->flags & BIO_FLAGS_UPLINK)
+ UP_fflush(b->ptr);
+ else
+ fflush((FILE *)b->ptr);
+ break;
+ case BIO_CTRL_DUP:
+ ret = 1;
+ break;
+
+ case BIO_CTRL_WPENDING:
+ case BIO_CTRL_PENDING:
+ case BIO_CTRL_PUSH:
+ case BIO_CTRL_POP:
+ default:
+ ret = 0;
+ break;
+ }
+ return (ret);
+}
+
+static int MS_CALLBACK file_gets(BIO *bp, char *buf, int size)
+{
+ int ret = 0;
+
+ buf[0] = '\0';
+ if (bp->flags & BIO_FLAGS_UPLINK) {
+ if (!UP_fgets(buf, size, bp->ptr))
+ goto err;
+ } else {
+ if (!fgets(buf, size, (FILE *)bp->ptr))
+ goto err;
+ }
+ if (buf[0] != '\0')
+ ret = strlen(buf);
+ err:
+ return (ret);
+}
+
+static int MS_CALLBACK file_puts(BIO *bp, const char *str)
+{
+ int n, ret;
+
+ n = strlen(str);
+ ret = file_write(bp, str, n);
+ return (ret);
+}
+
+# endif /* OPENSSL_NO_STDIO */
+
+#endif /* HEADER_BSS_FILE_C */
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