user: What is the c source code of the assembly code below:

```asm
<show_usage>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%edi
  call   <exit@plt>
  nop
  pop    %rbp
  ret
```

tool_calls: name: parse_data
arguments: label: D4
datatype: string

tool: {"D4": "usage: hping host [options]\n  -h  --help      show this help\n  -v  --version   show version\n  -c  --count     packet count\n  -i  --interval  wait (uX for X microseconds, for example -i u1000)\n      --fast      alias for -i u10000 (10 packets for second)\n      --faster    alias for -i u1000 (100 packets for second)\n      --flood\t   sent packets as fast as possible. Don't show replies.\n  -n  --numeric   numeric output\n  -q  --quiet     quiet\n  -I  --interface interface name (otherwise default routing interface)\n  -V  --verbose   verbose mode\n  -D  --debug     debugging info\n  -z  --bind      bind ctrl+z to ttl           (default to dst port)\n  -Z  --unbind    unbind ctrl+z\n      --beep      beep for every matching packet received\nMode\n  default mode     TCP\n  -0  --rawip      RAW IP mode\n  -1  --icmp       ICMP mode\n  -2  --udp        UDP mode\n  -8  --scan       SCAN mode.\n                   Example: hping --scan 1-30,70-90 -S www.target.host\n  -9  --listen     listen mode\nIP\n  -a  --spoof      spoof source address\n  --rand-dest      random destionation address mode. see the man.\n  --rand-source    random source address mode. see the man.\n  -t  --ttl        ttl (default 64)\n  -N  --id         id (default random)\n  -W  --winid      use win* id byte ordering\n  -r  --rel        relativize id field          (to estimate host traffic)\n  -f  --frag       split packets in more frag.  (may pass weak acl)\n  -x  --morefrag   set more fragments flag\n  -y  --dontfrag   set dont fragment flag\n  -g  --fragoff    set the fragment offset\n  -m  --mtu        set virtual mtu, implies --frag if packet size > mtu\n  -o  --tos        type of service (default 0x00), try --tos help\n  -G  --rroute     includes RECORD_ROUTE option and display the route buffer\n  --lsrr           loose source routing and record route\n  --ssrr           strict source routing and record route\n  -H  --ipproto    set the IP protocol field, only in RAW IP mode\nICMP\n  -C  --icmptype   icmp type (default echo request)\n  -K  --icmpcode   icmp code (default 0)\n      --force-icmp send all icmp types (default send only supported types)\n      --icmp-gw    set gateway address for ICMP redirect (default 0.0.0.0)\n      --icmp-ts    Alias for --icmp --icmptype 13 (ICMP timestamp)\n      --icmp-addr  Alias for --icmp --icmptype 17 (ICMP address subnet mask)\n      --icmp-help  display help for others icmp options\nUDP/TCP\n  -s  --baseport   base source port             (default random)\n  -p  --destport   [+][+]<port> destination port(default 0) ctrl+z inc/dec\n  -k  --keep       keep still source port\n  -w  --win        winsize (default 64)\n  -O  --tcpoff     set fake tcp data offset     (instead of tcphdrlen / 4)\n  -Q  --seqnum     shows only tcp sequence number\n  -b  --badcksum   (try to) send packets with a bad IP checksum\n                   many systems will fix the IP checksum sending the packet\n                   so you'll get bad UDP/TCP checksum instead.\n  -M  --setseq     set TCP sequence number\n  -L  --setack     set TCP ack\n  -F  --fin        set FIN flag\n  -S  --syn        set SYN flag\n  -R  --rst        set RST flag\n  -P  --push       set PUSH flag\n  -A  --ack        set ACK flag\n  -U  --urg        set URG flag\n  -X  --xmas       set X unused flag (0x40)\n  -Y  --ymas       set Y unused flag (0x80)\n  --tcpexitcode    use last tcp->th_flags as exit code\n  --tcp-timestamp  enable the TCP timestamp option to guess the HZ/uptime\nClock skew detection\n  --clock-skew     enable clock skew detection. Try with -S against open port\n  --clock-skew-win window of time (in seconds) for CS detection. Default 300\n  --clock-skew-shift timestamp samples to use for error correction. Default 5\n  --clock-skew-packets-per-sample # of packets to extract a sample. Default 10\nCommon\n  -d  --data       data size                    (default is 0)\n  -E  --file       data from file\n  -e  --sign       add 'signature'\n  -j  --dump       dump packets in hex\n  -J  --print      dump printable characters\n  -B  --safe       enable 'safe' protocol\n  -u  --end        tell you when --file reached EOF and prevent rewind\n  -T  --traceroute traceroute mode              (implies --bind and --ttl 1)\n  --tr-stop        Exit when receive the first not ICMP in traceroute mode\n  --tr-keep-ttl    Keep the source TTL fixed, useful to monitor just one hop\n  --tr-no-rtt\t    Don't calculate/show RTT information in traceroute mode\nARS packet description (new, unstable)\n  --apd-send       Send the packet described with APD (see docs/APD.txt)\n"}

assistant: ```c
void show_usage(void) {
  printf("usage: hping host [options]\n"
         "  -h  --help      show this help\n"
         "  -v  --version   show version\n"
         "  -c  --count     packet count\n"
         "  -i  --interval  wait (uX for X microseconds, for example -i u1000)\n"
         "      --fast      alias for -i u10000 (10 packets for second)\n"
         "      --faster    alias for -i u1000 (100 packets for second)\n"
         "      --flood	   sent packets as fast as possible. Don't show replies.\n"
         "  -n  --numeric   numeric output\n"
         "  -q  --quiet     quiet\n"
         "  -I  --interface interface name (otherwise default routing interface)\n"
         "  -V  --verbose   verbose mode\n"
         "  -D  --debug     debugging info\n"
         "  -z  --bind      bind ctrl+z to ttl           (default to dst port)\n"
         "  -Z  --unbind    unbind ctrl+z\n"
         "      --beep      beep for every matching packet received\n"
         "Mode\n"
         "  default mode     TCP\n"
         "  -0  --rawip      RAW IP mode\n"
         "  -1  --icmp       ICMP mode\n"
         "  -2  --udp        UDP mode\n"
         "  -8  --scan       SCAN mode.\n"
         "                   Example: hping --scan 1-30,70-90 -S www.target.host\n"
         "  -9  --listen     listen mode\n"
         "IP\n"
         "  -a  --spoof      spoof source address\n"
         "  --rand-dest      random destionation address mode. see the man.\n"
         "  --rand-source    random source address mode. see the man.\n"
         "  -t  --ttl        ttl (default 64)\n"
         "  -N  --id         id (default random)\n"
         "  -W  --winid      use win* id byte ordering\n"
         "  -r  --rel        relativize id field          (to estimate host traffic)\n"
         "  -f  --frag       split packets in more frag.  (may pass weak acl)\n"
         "  -x  --morefrag   set more fragments flag\n"
         "  -y  --dontfrag   set dont fragment flag\n"
         "  -g  --fragoff    set the fragment offset\n"
         "  -m  --mtu        set virtual mtu, implies --frag if packet size > mtu\n"
         "  -o  --tos        type of service (default 0x00), try --tos help\n"
         "  -G  --rroute     includes RECORD_ROUTE option and display the route buffer\n"
         "  --lsrr           loose source routing and record route\n"
         "  --ssrr           strict source routing and record route\n"
         "  -H  --ipproto    set the IP protocol field, only in RAW IP mode\n"
         "ICMP\n"
         "  -C  --icmptype   icmp type (default echo request)\n"
         "  -K  --icmpcode   icmp code (default 0)\n"
         "      --force-icmp send all icmp types (default send only supported types)\n"
         "      --icmp-gw    set gateway address for ICMP redirect (default 0.0.0.0)\n"
         "      --icmp-ts    Alias for --icmp --icmptype 13 (ICMP timestamp)\n"
         "      --icmp-addr  Alias for --icmp --icmptype 17 (ICMP address subnet mask)\n"
         "      --icmp-help  display help for others icmp options\n"
         "UDP/TCP\n"
         "  -s  --baseport   base source port             (default random)\n"
         "  -p  --destport   [+][+]<port> destination port(default 0) ctrl+z inc/dec\n"
         "  -k  --keep       keep still source port\n"
         "  -w  --win        winsize (default 64)\n"
         "  -O  --tcpoff     set fake tcp data offset     (instead of tcphdrlen / 4)\n"
         "  -Q  --seqnum     shows only tcp sequence number\n"
         "  -b  --badcksum   (try to) send packets with a bad IP checksum\n"
         "                   many systems will fix the IP checksum sending the packet\n"
         "                   so you'll get bad UDP/TCP checksum instead.\n"
         "  -M  --setseq     set TCP sequence number\n"
         "  -L  --setack     set TCP ack\n"
         "  -F  --fin        set FIN flag\n"
         "  -S  --syn        set SYN flag\n"
         "  -R  --rst        set RST flag\n"
         "  -P  --push       set PUSH flag\n"
         "  -A  --ack        set ACK flag\n"
         "  -U  --urg        set URG flag\n"
         "  -X  --xmas       set X unused flag (0x40)\n"
         "  -Y  --ymas       set Y unused flag (0x80)\n"
         "  --tcpexitcode    use last tcp->th_flags as exit code\n"
         "  --tcp-timestamp  enable the TCP timestamp option to guess the HZ/uptime\n"
         "Clock skew detection\n"
         "  --clock-skew     enable clock skew detection. Try with -S against open port\n"
         "  --clock-skew-win window of time (in seconds) for CS detection. Default 300\n"
         "  --clock-skew-shift timestamp samples to use for error correction. Default 5\n"
         "  --clock-skew-packets-per-sample # of packets to extract a sample. Default 10\n"
         "Common\n"
         "  -d  --data       data size                    (default is 0)\n"
         "  -E  --file       data from file\n"
         "  -e  --sign       add 'signature'\n"
         "  -j  --dump       dump packets in hex\n"
         "  -J  --print      dump printable characters\n"
         "  -B  --safe       enable 'safe' protocol\n"
         "  -u  --end        tell you when --file reached EOF and prevent rewind\n"
         "  -T  --traceroute traceroute mode              (implies --bind and --ttl 1)\n"
         "  --tr-stop        Exit when receive the first not ICMP in traceroute mode\n"
         "  --tr-keep-ttl    Keep the source TTL fixed, useful to monitor just one hop\n"
         "  --tr-no-rtt	    Don't calculate/show RTT information in traceroute mode\n"
         "ARS packet description (new, unstable)\n"
         "  --apd-send       Send the packet described with APD (see docs/APD.txt)\n");
  exit(0);
}
```