a752c7ab
 elopes
add first test an...
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examples/posix_sockets
======================
This application is a showcase for RIOT's POSIX socket support. To
keep things simple this application has only one-hop support and
no routing capabilities.
Usage
=====
Build, flash and start the application:
```
export BOARD=your_board
make
make flash
make term
```
The `term` make target starts a terminal emulator for your board. It
connects to a default port so you can interact with the shell, usually
that is `/dev/ttyUSB0`. If your port is named differently, the
`PORT=/dev/yourport` (not to be confused with the UDP port) variable can
be used to override this.
Example output
==============
The shell commands come with online help. Call `help` to see which commands
exist and what they do.
udp send fe80::1 1337 uiaeue
2015-09-22 14:55:30,686 - INFO # > udp send fe80::1 1337 uiaeue
2015-09-22 14:55:30,690 - INFO # Success: send 6 byte to fe80::1:1337
Running the `help` command on an iotlab-m3:
```
2015-09-22 14:54:54,442 - INFO # help
2015-09-22 14:54:54,443 - INFO # Command Description
2015-09-22 14:54:54,444 - INFO # ---------------------------------------
2015-09-22 14:54:54,446 - INFO # udp send data over UDP and listen on UDP ports
2015-09-22 14:54:54,447 - INFO # reboot Reboot the node
2015-09-22 14:54:54,449 - INFO # ps Prints information about running threads.
2015-09-22 14:54:54,451 - INFO # mersenne_init initializes the PRNG
2015-09-22 14:54:54,453 - INFO # mersenne_get returns 32 bit of pseudo randomness
2015-09-22 14:54:54,454 - INFO # ifconfig Configure network interfaces
2015-09-22 14:54:54,457 - INFO # ncache manage neighbor cache by hand
2015-09-22 14:54:54,459 - INFO # routers IPv6 default router list
```
Running the `ps` command on an iotlab-m3:
```
2015-09-22 14:54:57,134 - INFO # > ps
2015-09-22 14:54:57,139 - INFO # pid | name | state Q | pri | stack ( used) | location
2015-09-22 14:54:57,143 - INFO # 1 | idle | pending Q | 15 | 256 ( 136) | 0x200001cc
2015-09-22 14:54:57,157 - INFO # 2 | main | pending Q | 7 | 1536 ( 620) | 0x200002cc
2015-09-22 14:54:57,164 - INFO # 3 | 6lo | bl rx _ | 3 | 1024 ( 404) | 0x20003ef8
2015-09-22 14:54:57,169 - INFO # 4 | ipv6 | bl rx _ | 4 | 1024 ( 436) | 0x20001cc0
2015-09-22 14:54:57,172 - INFO # 5 | udp | bl rx _ | 5 | 1024 ( 268) | 0x20004660
2015-09-22 14:54:57,177 - INFO # 6 | at86rfxx | bl rx _ | 3 | 1024 ( 320) | 0x20001888
2015-09-22 14:54:57,183 - INFO # | SUM | | | 5888 ( 2184)
```
Start a UDP server with `udp server start <udp_port>`:
```
2015-09-22 14:55:09,563 - INFO # > udp server start 1337
2015-09-22 14:55:09,564 - INFO # Success: started UDP server on port 1337
```
Send a UDP package with `udp send <dst_addr> <dst_port> <data>`:
```
2015-09-22 14:55:30,686 - INFO # > udp send fe80::3432:4833:46d4:9e06 1337 test
2015-09-22 14:55:30,690 - INFO # Success: send 4 byte to [fe80::3432:4833:46d4:9e06]:1337
```
You can get the IPv6 address of the destination by using the `ifconfig` command on the receiver:
```
2015-09-22 14:58:10,394 - INFO # ifconfig
2015-09-22 14:58:10,397 - INFO # Iface 6 HWaddr: 9e:06 Channel: 26 NID: 0x23 TX-Power: 0dBm State: IDLE CSMA Retries: 4
2015-09-22 14:58:10,399 - INFO # Long HWaddr: 36:32:48:33:46:d4:9e:06
2015-09-22 14:58:10,400 - INFO # AUTOACK CSMA MTU:1280 6LO IPHC
2015-09-22 14:58:10,402 - INFO # Source address length: 8
2015-09-22 14:58:10,404 - INFO # Link type: wireless
2015-09-22 14:58:10,407 - INFO # inet6 addr: ff02::1/128 scope: local [multicast]
2015-09-22 14:58:10,415 - INFO # inet6 addr: fe80::3432:4833:46d4:9e06/64 scope: local
2015-09-22 14:58:10,416 - INFO #
```
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