samples/ssl/sslclient.c

/*	sslclient.c

	Example secure client.

	Copyright (C) 2000-2003 Robert A. van Engelen, Genivia inc.
	All Rights Reserved.
*/

#include "soapH.h"
#include "ssl.nsmap"
#include <unistd.h>		/* defines _POSIX_THREADS if pthreads are available */
#ifdef _POSIX_THREADS
# include <pthread.h>
#endif
#include <signal.h>		/* defines SIGPIPE */

const char server[] = "https://localhost:18081";

int CRYPTO_thread_setup();
void CRYPTO_thread_cleanup();
void sigpipe_handle(int);

int main()
{ struct soap soap;
  double a, b, result;
  /* Init OpenSSL */
  soap_ssl_init();
  if (CRYPTO_thread_setup())
  { fprintf(stderr, "Cannot setup thread mutex\n");
    exit(1);
  }
  a = 10.0;
  b = 20.0;
  /* Init gSOAP context */
  soap_init(&soap);
  /* The supplied server certificate "server.pem" assumes that the server is
    running on 'localhost', so clients can only connect from the same host when
    verifying the server's certificate. Use SOAP_SSL_NO_AUTHENTICATION to omit
    the authentication of the server and use encryption directly from any site.
    To verify the certificates of third-party services, they must provide a
    certificate issued by Verisign or another trusted CA. At the client-side,
    the capath parameter should point to a directory that contains these
    trusted (root) certificates or the cafile parameter should refer to one
    file will all certificates. To help you out, the supplied "cacerts.pem"
    file contains the certificates issued by various CAs. You should use this
    file for the cafile parameter instead of "cacert.pem" to connect to trusted
    servers.  Note that the client may fail to connect if the server's
    credentials have problems (e.g. expired). Use SOAP_SSL_NO_AUTHENTICATION
    and set cacert to NULL to encrypt messages if you don't care about the
    trustworthyness of the server.  Note: setting capath may not work on
    Windows.
  */
  if (soap_ssl_client_context(&soap,
    SOAP_SSL_DEFAULT,	/* use SOAP_SSL_DEFAULT in production code */
    NULL, 		/* keyfile: required only when client must authenticate to server (see SSL docs on how to obtain this file) */
    NULL, 		/* password to read the keyfile */
    "cacert.pem",	/* optional cacert file to store trusted certificates */
    NULL,		/* optional capath to directory with trusted certificates */
    NULL		/* if randfile!=NULL: use a file with random data to seed randomness */ 
  ))
  { soap_print_fault(&soap, stderr);
    exit(1);
  }
  if (soap_call_ns__add(&soap, server, "", a, b, &result) == SOAP_OK)
    fprintf(stdout, "Result: %f + %f = %f\n", a, b, result);
  else
    soap_print_fault(&soap, stderr);
  soap_destroy(&soap); /* C++ */
  soap_end(&soap);
  soap_done(&soap);
  CRYPTO_thread_cleanup();
  return 0;
}

/******************************************************************************\
 *
 *	OpenSSL
 *
\******************************************************************************/

#ifdef WITH_OPENSSL

#if defined(WIN32)
# define MUTEX_TYPE		HANDLE
# define MUTEX_SETUP(x)		(x) = CreateMutex(NULL, FALSE, NULL)
# define MUTEX_CLEANUP(x)	CloseHandle(x)
# define MUTEX_LOCK(x)		WaitForSingleObject((x), INFINITE)
# define MUTEX_UNLOCK(x)	ReleaseMutex(x)
# define THREAD_ID		GetCurrentThreadId()
#elif defined(_POSIX_THREADS)
# define MUTEX_TYPE		pthread_mutex_t
# define MUTEX_SETUP(x)		pthread_mutex_init(&(x), NULL)
# define MUTEX_CLEANUP(x)	pthread_mutex_destroy(&(x))
# define MUTEX_LOCK(x)		pthread_mutex_lock(&(x))
# define MUTEX_UNLOCK(x)	pthread_mutex_unlock(&(x))
# define THREAD_ID		pthread_self()
#else
# error "You must define mutex operations appropriate for your platform"
# error	"See OpenSSL /threads/th-lock.c on how to implement mutex on your platform"
#endif

struct CRYPTO_dynlock_value
{ MUTEX_TYPE mutex;
};

static MUTEX_TYPE *mutex_buf;

static struct CRYPTO_dynlock_value *dyn_create_function(const char *file, int line)
{ struct CRYPTO_dynlock_value *value;
  value = (struct CRYPTO_dynlock_value*)malloc(sizeof(struct CRYPTO_dynlock_value));
  if (value)
    MUTEX_SETUP(value->mutex);
  return value;
}

static void dyn_lock_function(int mode, struct CRYPTO_dynlock_value *l, const char *file, int line)
{ if (mode & CRYPTO_LOCK)
    MUTEX_LOCK(l->mutex);
  else
    MUTEX_UNLOCK(l->mutex);
}

static void dyn_destroy_function(struct CRYPTO_dynlock_value *l, const char *file, int line)
{ MUTEX_CLEANUP(l->mutex);
  free(l);
}

void locking_function(int mode, int n, const char *file, int line)
{ if (mode & CRYPTO_LOCK)
    MUTEX_LOCK(mutex_buf[n]);
  else
    MUTEX_UNLOCK(mutex_buf[n]);
}

unsigned long id_function()
{ return (unsigned long)THREAD_ID;
}

int CRYPTO_thread_setup()
{ int i;
  mutex_buf = (MUTEX_TYPE*)malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
  if (!mutex_buf)
    return SOAP_EOM;
  for (i = 0; i < CRYPTO_num_locks(); i++)
    MUTEX_SETUP(mutex_buf[i]);
  CRYPTO_set_id_callback(id_function);
  CRYPTO_set_locking_callback(locking_function);
  CRYPTO_set_dynlock_create_callback(dyn_create_function);
  CRYPTO_set_dynlock_lock_callback(dyn_lock_function);
  CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function);
  return SOAP_OK;
}

void CRYPTO_thread_cleanup()
{ int i;
  if (!mutex_buf)
    return;
  CRYPTO_set_id_callback(NULL);
  CRYPTO_set_locking_callback(NULL);
  CRYPTO_set_dynlock_create_callback(NULL);
  CRYPTO_set_dynlock_lock_callback(NULL);
  CRYPTO_set_dynlock_destroy_callback(NULL);
  for (i = 0; i < CRYPTO_num_locks(); i++)
    MUTEX_CLEANUP(mutex_buf[i]);
  free(mutex_buf);
  mutex_buf = NULL;
}

#endif

/******************************************************************************\
 *
 *	SIGPIPE
 *
\******************************************************************************/

void sigpipe_handle(int x) { }