Demo of use of errors in applications.

# 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)

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.

#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);

	}

# Details: name of library, header file to use and

# file to output error codes to.

L       TEST    test_err.h test_err.c

/* 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"

 */