ObjFW  Diff

			    exceptionWithClass: [self class]];

		switch ((_pid = fork())) {
		case 0:;
			OFString **objects = [arguments objects];
			size_t i, count = [arguments count];
			char **argv;
			of_string_encoding_t encoding;

			argv = [self allocMemoryWithSize: sizeof(char*)
						   count: count + 2];

			encoding = [OFString nativeOSEncoding];

			argv[0] = (char*)[programName cStringWithEncoding:
			argv[0] = (char*)[programName
			    OF_STRING_ENCODING_NATIVE];
			    cStringWithEncoding: encoding];

			for (i = 0; i < count; i++)
				argv[i + 1] = (char*)[objects[i]
				    cStringWithEncoding:
				    cStringWithEncoding: encoding];
				    OF_STRING_ENCODING_NATIVE];

			argv[i + 1] = NULL;

			if (environment != nil) {
#ifdef __MACH__
				*_NSGetEnviron() = [self
				    OF_environmentForDictionary: environment];
#else
				environ = [self
				    OF_environmentForDictionary: environment];
#endif
			}

			close(_readPipe[0]);
			close(_writePipe[1]);
			dup2(_writePipe[0], 0);
			dup2(_readPipe[1], 1);
			execvp([program cStringWithEncoding:
			execvp([program cStringWithEncoding: encoding], argv);
			    OF_STRING_ENCODING_NATIVE], argv);

			@throw [OFInitializationFailedException
			    exceptionWithClass: [self class]];
		case -1:
			@throw [OFInitializationFailedException
			    exceptionWithClass: [self class]];
		default:

#ifndef _WIN32
- (char**)OF_environmentForDictionary: (OFDictionary*)environment
{
	OFEnumerator *keyEnumerator, *objectEnumerator;
	char **envp;
	size_t i, count;
	of_string_encoding_t encoding;

	if (environment == nil)
		return NULL;

	encoding = [OFString nativeOSEncoding];

	count = [environment count];
	envp = [self allocMemoryWithSize: sizeof(char*)
				   count: count + 1];

	keyEnumerator = [environment keyEnumerator];
	objectEnumerator = [environment objectEnumerator];

	for (i = 0; i < count; i++) {
		OFString *key;
		OFString *object;
		size_t keyLen, objectLen;

		key = [keyEnumerator nextObject];
		object = [objectEnumerator nextObject];

		keyLen = [key cStringLengthWithEncoding:
		keyLen = [key cStringLengthWithEncoding: encoding];
		    OF_STRING_ENCODING_NATIVE];
		objectLen = [object cStringLengthWithEncoding:
		objectLen = [object cStringLengthWithEncoding: encoding];
		    OF_STRING_ENCODING_NATIVE];

		envp[i] = [self allocMemoryWithSize: keyLen + objectLen + 2];

		memcpy(envp[i], [key cStringWithEncoding:
		memcpy(envp[i], [key cStringWithEncoding: encoding], keyLen);
		    OF_STRING_ENCODING_NATIVE], keyLen);
		envp[i][keyLen] = '=';
		memcpy(envp[i] + keyLen + 1, [object cStringWithEncoding:
		    OF_STRING_ENCODING_NATIVE], objectLen);
		memcpy(envp[i] + keyLen + 1,
		    [object cStringWithEncoding: encoding], objectLen);
		envp[i][keyLen + objectLen + 1] = '\0';
	}

	envp[i] = NULL;

	return envp;
}