Azure Sphere is it Linux?
Where to read the OS and SDK license?
Yes... but my readdir() is not ready yet
Struct dirent is custom ... work but just print names... will put log after hour
Btw: files can be read() if access ...
write() say EROFS 
/etc/shadow not exist
Explore Azure Sphere [OPEN DIR] /proc = 4 04-(D) . 04-(D) .. 04-(D) fs 04-(D) bus 04-(D) cpu 08-(F) fdt 04-(D) irq 08-(F) mtd 0A-(L) net 04-(D) sys 04-(D) tty 08-(F) kmsg 08-(F) misc 08-(F) stat 08-(F) iomem 08-(F) locks 08-(F) crypto 04-(D) driver 0A-(L) mounts 08-(F) uptime 08-(F) vmstat 08-(F) cgroups 08-(F) cmdline 08-(F) cpuinfo 08-(F) devices 08-(F) ioports 08-(F) loadavg 08-(F) meminfo 08-(F) version 08-(F) consoles 08-(F) softirqs 08-(F) zoneinfo 08-(F) buddyinfo 08-(F) diskstats 08-(F) interrupts 08-(F) kpagecount 08-(F) kpageflags 08-(F) partitions 08-(F) timer_list 0A-(L) device-tree 08-(F) execdomains 08-(F) filesystems 08-(F) kpagecgroup 08-(F) vmallocinfo 08-(F) pagetypeinfo 08-(F) sysrq-trigger 0A-(L) self 0A-(L) thread-self 04-(D) 41
example 
The results from today: ALL (not only user SDK) functions (static) is unlocked 
- need headers...
IoTclient and mqtt is full shared from Microsoft (git)
wolf SLL/TLS - (git) - need only config header
BTW: This "Linux" is the best Linux for small IoT sensors as Unix-Like OS ... unfortunately is closed source 
