2.2.4. Functions

In the function definition, put the return type on its own line, and place the opening brace by itself on a line:

static int
foo(void)
{

For functions with enough arguments that they must break to the next line, align arguments with the first argument:

static int
function_name(int bar, const char *a, const char *b,
              const char *c, const char *d)
{

If a function name gets really long, start the arguments on their own line with 8 spaces of indentation:

static int
really_really_long_function_name_this_is_getting_silly_now(
        int bar, const char *a, const char *b,
        const char *c, const char *d)
{