Remove err and prime demo's

ERR is not really a public facility; remove the demo.
prime shows how to generate a prime.  See apps.
Reviewed-by: NTim Hudson <tjh@openssl.org>

demos/err/Makefile

-# Minimal makefile to generate error codes and link a test app
-SRC= main.c
-OBJ= main.o
-HEADER=test_err.h
-ERROBJ= test_err.o
-CC=gcc
-CFLAGS=-I../../include
-LDFLAGS=-L../.. -lcrypto
-
-PERL=perl
-
-testapp: $(OBJ) $(ERROBJ) $(HEADER)
-	$(CC) -o testapp $(OBJ) $(ERROBJ) $(LDFLAGS)
-	
-errors:
-	$(PERL) ../../util/mkerr.pl -conf test_err.ec \
-		-nostatic -write $(SRC)

demos/err/README

-
-This directory contains a simple example of how to use the ERR functions of
-OpenSSL to add error codes to an external application. 
-
-To test it first do "make errors". This will build error codes and add them
-to the header files. It will also create some functions to load error codes.
-Notice how "test_err.h" is updated after this call and the C source file
-"test_err.c" is created. These names are in the test_err.ec file passed to the
-mkerr.pl script.
-
-Then do "make" which will build the test application.
-

demos/err/main.c

-#include <openssl/err.h>
-
-#include "test_err.h"
-
-/* Simple error test routine */
-
-void a_test_function(void)
-{
-    TESTerr(TEST_F_A_TEST_FUNCTION, TEST_R_TEST_REASON_CODE);
-    TESTerr(TEST_F_A_TEST_FUNCTION, TEST_R_ANOTHER_TEST_REASON_CODE);
-    ERR_add_error_data(1, "some additional error data");
-}
-
-int main(int argc, char **argv)
-{
-    ERR_load_TEST_strings();
-    a_test_function();
-    ERR_print_errors_fp(stderr);
-}

demos/err/test_err.ec

-# Details: name of library, header file to use and
-# file to output error codes to.
-L       TEST    test_err.h test_err.c

demos/err/test_err.h

-/* Demo of use of error library */
-
-#ifndef TEST_ERR_H
-# define TEST_ERR_H
-
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-/* Test library name */
-
-# define TEST_LIB_NAME   "demo test library routines"
-
-/* Normal header details go here */
-
-/*
- * Prototypes are picked up by the error script to generate strings for
- * function names.
- */
-
-void a_test_function(void);
-
-/*
- * Everything after this point is auto generated when you do "make errors"
- */

demos/prime/Makefile

-CC=cc
-CFLAGS= -g -I../../include -Wall
-LIBS=  -L../.. -lcrypto
-EXAMPLES=prime
-
-all: $(EXAMPLES) 
-
-prime: prime.o
-	$(CC) -o prime prime.o $(LIBS)
-
-clean:	
-	rm -f $(EXAMPLES) *.o
-
-test: all
-	@echo Test creating a 128-bit prime
-	./prime 128
-	@echo Test creating a 256-bit prime
-	./prime 256
-	@echo Test creating a 512-bit prime
-	./prime 512

demos/prime/prime.c

-/* demos/prime/prime.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.]
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <openssl/bn.h>
-
-void callback(type, num)
-int type, num;
-{
-    if (type == 0)
-        fprintf(stderr, ".");
-    else if (type == 1)
-        fprintf(stderr, "+");
-    else if (type == 2)
-        fprintf(stderr, "*");
-    fflush(stderr);
-}
-
-int main(argc, argv)
-int argc;
-char *argv[];
-{
-    BIGNUM *rand;
-    int num = 256;
-
-    /*
-     * we should really call RAND_seed(char *bytes,int num); to fully
-     * initalise the random number generator
-     */
-    if (argc >= 2) {
-        num = atoi(argv[1]);
-        if (num == 0)
-            num = 256;
-    }
-
-    fprintf(stderr, "generate a strong prime\n");
-    rand = BN_generate_prime(NULL, num, 1, NULL, NULL, callback, NULL);
-    /* change the third parameter to 1 for a strong prime */
-    fprintf(stderr, "\n");
-
-    BN_print_fp(stdout, rand);
-    fprintf(stdout, "\n");
-    BN_free(rand);
-    exit(0);
-    return (0);
-}