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