//***************
// r e a d e n v
//***************
// Goes to read directly the environment variables from the operating system on Windows
// and provides a stub for UNIX.
bool readenv(const char* env_name, Firebird::string& env_value)
{
#ifdef WIN_NT
const DWORD rc = GetEnvironmentVariable(env_name, NULL, 0);
if (rc)
{
env_value.reserve(rc - 1);
DWORD rc2 = GetEnvironmentVariable(env_name, env_value.begin(), rc);
if (rc2 < rc && rc2 != 0)
{
env_value.recalculate_length();
return true;
}
}
#else
const char* p = getenv(env_name);
if (p)
return env_value.assign(p).length() != 0;
#endif
// Not found, clear the output var.
env_value.begin()[0] = 0;
env_value.recalculate_length();
return false;
}
Firebird::string Stream::getFBString() const
{
Firebird::string string;
char *p = string.getBuffer (totalLength);
for (const Segment *segment = segments; segment; segment = segment->next)
{
memcpy (p, segment->address, segment->length);
p += segment->length;
}
fb_assert(p - string.begin() == totalLength);
return string;
}