344 lines
8.8 KiB
C
344 lines
8.8 KiB
C
/* 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
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include "cryptlib.h"
|
|
#include <openssl/bio.h>
|
|
#include <openssl/err.h>
|
|
|
|
#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)
|
|
return(NULL);
|
|
|
|
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_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;
|
|
return(1);
|
|
}
|
|
|
|
static int MS_CALLBACK file_free(BIO *a)
|
|
{
|
|
if (a == NULL) return(0);
|
|
if (a->shutdown)
|
|
{
|
|
if ((a->init) && (a->ptr != NULL))
|
|
{
|
|
fclose((FILE *)a->ptr);
|
|
a->ptr=NULL;
|
|
}
|
|
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))
|
|
{
|
|
ret=fread(out,1,(int)outl,(FILE *)b->ptr);
|
|
if(ret == 0 && 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 (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 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:
|
|
ret=(long)fseek(fp,num,0);
|
|
break;
|
|
case BIO_CTRL_EOF:
|
|
ret=(long)feof(fp);
|
|
break;
|
|
case BIO_C_FILE_TELL:
|
|
case BIO_CTRL_INFO:
|
|
ret=ftell(fp);
|
|
break;
|
|
case BIO_C_SET_FILE_PTR:
|
|
file_free(b);
|
|
b->shutdown=(int)num&BIO_CLOSE;
|
|
b->ptr=(char *)ptr;
|
|
b->init=1;
|
|
{
|
|
#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)
|
|
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
|
|
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=(char *)fp;
|
|
b->init=1;
|
|
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:
|
|
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';
|
|
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 */
|
|
|
|
|