Import of old SSLeay release: SSLeay 0.8.1b

1 files changed, 334 insertions, 0 deletions

diff --git a/crypto/bio/bss_file.c b/crypto/bio/bss_file.c
new file mode 100644
index 0000000000..33c18e744b
--- /dev/null
+++ b/crypto/bio/bss_file.c
@@ -0,0 +1,334 @@
+/* crypto/bio/bss_file.c */
+/* Copyright (C) 1995-1997 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.]
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include "cryptlib.h"
+#include "bio.h"
+#include "err.h"
+
+#ifndef NOPROTO
+static int MS_CALLBACK file_write(BIO *h,char *buf,int num);
+static int MS_CALLBACK file_read(BIO *h,char *buf,int size);
+static int MS_CALLBACK file_puts(BIO *h,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,char *arg2);
+static int MS_CALLBACK file_new(BIO *h);
+static int MS_CALLBACK file_free(BIO *data);
+#else
+static int MS_CALLBACK file_write();
+static int MS_CALLBACK file_read();
+static int MS_CALLBACK file_puts();
+static int MS_CALLBACK file_gets();
+static long MS_CALLBACK file_ctrl();
+static int MS_CALLBACK file_new();
+static int MS_CALLBACK file_free();
+#endif
+
+static BIO_METHOD methods_filep=
+	{
+	BIO_TYPE_FILE,"FILE pointer",
+	file_write,
+	file_read,
+	file_puts,
+	file_gets,
+	file_ctrl,
+	file_new,
+	file_free,
+	};
+
+#if !defined(WIN16) || defined(APPS_WIN16)
+BIO *BIO_new_file(filename,mode)
+char *filename;
+char *mode;
+	{
+	BIO *ret;
+	FILE *file;
+
+	if ((file=fopen(filename,mode)) == NULL)
+		{
+		SYSerr(SYS_F_FOPEN,errno);
+		BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB);
+		return(NULL);
+		}
+
+	if ((ret=BIO_new(BIO_s_file())) == NULL)
+		return(NULL);
+#if 0
+	if ((ret=BIO_new(BIO_s_file_internal_w16())) == NULL)
+		return(NULL);
+#endif
+
+	BIO_set_fp(ret,file,BIO_CLOSE);
+	return(ret);
+	}
+
+BIO *BIO_new_fp(stream,close_flag)
+FILE *stream;
+int close_flag;
+	{
+	BIO *ret;
+
+	if ((ret=BIO_new(BIO_s_file())) == NULL)
+		return(NULL);
+#if 0
+	if ((ret=BIO_new(BIO_s_file_internal_w16())) == NULL)
+#endif
+
+	BIO_set_fp(ret,stream,close_flag);
+	return(ret);
+	}
+#endif /* !APPS_WIN16 */
+
+#if !defined(WIN16) || defined(APPS_WIN16)
+
+BIO_METHOD *BIO_s_file()
+	{
+	return(&methods_filep);
+	}
+
+#else
+
+BIO_METHOD *BIO_s_file_internal_w16()
+	{
+	return(&methods_filep);
+	}
+
+#endif
+
+static int MS_CALLBACK file_new(bi)
+BIO *bi;
+	{
+	bi->init=0;
+	bi->num=0;
+	bi->ptr=NULL;
+	return(1);
+	}
+
+static int MS_CALLBACK file_free(a)
+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(b,out,outl)
+BIO *b;
+char *out;
+int outl;
+	{
+	int ret=0;
+
+	if (b->init && (out != NULL))
+		{
+		ret=fread(out,1,(int)outl,(FILE *)b->ptr);
+		}
+	return(ret);
+	}
+
+static int MS_CALLBACK file_write(b,in,inl)
+BIO *b;
+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); */
+		/* acording 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(b,cmd,num,ptr)
+BIO *b;
+int cmd;
+long num;
+char *ptr;
+	{
+	long ret=1;
+	FILE *fp=(FILE *)b->ptr;
+	FILE **fpp;
+	char p[4];
+
+	switch (cmd)
+		{
+	case BIO_CTRL_RESET:
+		ret=(long)fseek(fp,num,0);
+		break;
+	case BIO_CTRL_EOF:
+		ret=(long)feof(fp);
+		break;
+	case BIO_CTRL_INFO:
+		ret=ftell(fp);
+		break;
+	case BIO_C_SET_FILE_PTR:
+		file_free(b);
+		b->shutdown=(int)num;
+		b->ptr=(char *)ptr;
+		b->init=1;
+		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)
+				strcpy(p,"a+");
+			else	strcpy(p,"a");
+			}
+		else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE))
+			strcpy(p,"r+");
+		else if (num & BIO_FP_WRITE)
+			strcpy(p,"w");
+		else if (num & BIO_FP_READ)
+			strcpy(p,"r");
+		else
+			{
+			BIOerr(BIO_F_FILE_CTRL,BIO_R_BAD_FOPEN_MODE);
+			ret=0;
+			break;
+			}
+#if defined(MSDOS) || defined(WINDOWS)
+		if (!(num & BIO_FP_TEXT))
+			strcat(p,"b");
+		else
+			strcat(p,"t");
+#endif
+		fp=fopen(ptr,p);
+		if (fp == NULL)
+			{
+			SYSerr(SYS_F_FOPEN,errno);
+			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(bp,buf,size)
+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(bp,str)
+BIO *bp;
+char *str;
+	{
+	int n,ret;
+
+	n=strlen(str);
+	ret=file_write(bp,str,n);
+	return(ret);
+	}
+