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  1. .TH fmt_ip6 3
  2. .SH NAME
  3. fmt_ip6 \- write a formatted ASCII representation of an IPv6 number
  5. .B #include <ip6.h>
  6. unsigned int \fBfmt_ip6\fP(char *\fIdest\fR,const char \fIip\fR[16]);
  8. fmt_ip6 formats an IPv6 number in ASCII representation from \fIip\fR and
  9. writes the result into \fIdest\fR. It returns the number of bytes
  10. written.
  11. fmt_ip6 will apply "::" compression to the output.
  12. If \fIip\fR is an IPv4-mapped IPv6 address, fmt_ip6 will output the last
  13. 4 bytes as IPv4 number in dotted-decimal notation.
  14. If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_ip6 returns the number
  15. of bytes it would have written.
  16. fmt_ip6 does not append \\0.
  17. For convenience, ip6.h defines the integer IP6_FMT to be big enough to
  18. contain every possible fmt_ip6 output plus \\0.
  20. #include <ip6.h>
  21. char buf[IP6_FMT];
  22. char ip[16];
  23. buf[fmt_ip6(buf,ip)]=0;
  24. .SH "SEE ALSO"
  25. fmt_ip6c(3), fmt_ip6if(3), scan_ip6(3), fmt_ip4(3)