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Diffstat (limited to 'openssl/crypto/bio/bss_file.c')
-rw-r--r--openssl/crypto/bio/bss_file.c428
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diff --git a/openssl/crypto/bio/bss_file.c b/openssl/crypto/bio/bss_file.c
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+++ b/openssl/crypto/bio/bss_file.c
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+/* 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,
+ };
+
+BIO *BIO_new_file(const char *filename, const char *mode)
+ {
+ BIO *ret;
+ FILE *file;
+
+ if ((file=fopen(filename,mode)) == 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_internal())) == 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_fsetmode
+ if (b->flags&BIO_FLAGS_UPLINK)
+ UP_fsetmode(b->ptr,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)
+ 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=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)
+ UP_fgets(buf,size,bp->ptr);
+ else
+ fgets(buf,size,(FILE *)bp->ptr);
+ if (buf[0] != '\0')
+ ret=strlen(buf);
+ 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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