1fmt_ip6if(3)               Library Functions Manual               fmt_ip6if(3)
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NAME

6       fmt_ip6if - write a formatted ASCII representation of an IPv6 number
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SYNTAX

9       #include <ip6.h>
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11       unsigned int fmt_ip6if(char *dest,const char ip[16],uint32 scope_id);
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DESCRIPTION

14       fmt_ip6if  formats  an  IPv6 number in ASCII representation from ip and
15       writes the result into dest. It returns the number of bytes written.
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17       fmt_ip6if will apply "::" compression to the output.
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19       If ip is an IPv4-mapped IPv6 address, fmt_ip6if will output the last  4
20       bytes as IPv4 number in dotted-decimal notation.
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22       If  dest equals FMT_LEN (i.e. is zero), fmt_ip6if returns the number of
23       bytes it would have written.
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25       fmt_ip6 does not append \0.
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27       ip6.h defines the integer IP6_FMT to be big  enough  to  contain  every
28       possible  fmt_ip6  output  plus \0.  However, for fmt_ip6if you need to
29       add 1 for the '%' and IF_NAMESIZE from  <net/if.h>  for  the  interface
30       name.
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EXAMPLE

33       #include <ip6.h>
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35         char buf[IP6_FMT];
36         char ip[16];
37         scope_id sid;
38         buf[fmt_ip6if(buf,ip,sid)]=0;
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SEE ALSO

41       scan_ip6(3), fmt_ip4(3)
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45                                                                  fmt_ip6if(3)