Function gnunet_sys::GNUNET_buffer_write_vfstr

pub unsafe extern "C" fn GNUNET_buffer_write_vfstr(
    buf: *mut GNUNET_Buffer, 
    fmt: *const c_char, 
    args: *mut __va_list_tag
)

Write a 0-terminated formatted string to a buffer, excluding the 0-terminator.

Grows the buffer if necessary.

@param buf the buffer to write to @param fmt format string @param args format argument list