Function snprintf

src/common/utils.cpp:348–366

s n p r i n t f Provide a single place to deal with vsnprintf and error detection.

// ***************
// Provide a single place to deal with vsnprintf and error detection.
int snprintf(char* buffer, size_t count, const char* format...)
{
	va_list args;
	va_start(args, format);
	const int rc = VSNPRINTF(buffer, count, format, args);
	buffer[count - 1] = 0;
	va_end(args);
#if defined(DEV_BUILD) && !defined(HAVE_VSNPRINTF)
	// We don't have the safe functions, then check if we overflowed the buffer.
	// I would prefer to make this functionality available in prod build, too.
	// If the docs are right, the null terminator is not counted => rc < count.
#if defined(fb_assert_continue)
	fb_assert_continue(rc >= 0 && rc < count);
#else
	fb_assert(rc >= 0 && rc < count);
#endif
#endif
	return rc;
}

// *******************
// c l e a n u p _ p a s s w d