|
|
|
|
.TH scan_ip6if 3
|
|
|
|
|
.SH NAME
|
|
|
|
|
scan_ip6 \- parse an IPv6 number and interface in ASCII representation
|
|
|
|
|
.SH SYNTAX
|
|
|
|
|
.B #include <libowfat/ip6.h>
|
|
|
|
|
|
|
|
|
|
int \fBscan_ip6if\fP(const char *\fIsrc\fR,char \fIip\fR[16],uint32* scope_id);
|
|
|
|
|
.SH DESCRIPTION
|
|
|
|
|
scan_ip6if parses an IPv6 number in RFC1884 ASCII representation
|
|
|
|
|
from \fIsrc\fR and writes the result into \fIip\fR. If the IPv6 number
|
|
|
|
|
is followed by the percent sign, scan_ip6if takes the word following
|
|
|
|
|
that, tries to parse it as network interface and writes the result to
|
|
|
|
|
\fIscope_id\fR.
|
|
|
|
|
|
|
|
|
|
It returns the number of bytes read from \fIsrc\fR or 0 if the parsing
|
|
|
|
|
failed.
|
|
|
|
|
|
|
|
|
|
scan_ip6if accepts upper and lower case hex letters, it understands "::"
|
|
|
|
|
compression and partial IPv4 addresses as in "::FFFF:129.144.52.38".
|
|
|
|
|
|
|
|
|
|
To allow transparent usage of IPv4 in IPv6 applications, scan_ip6if also
|
|
|
|
|
understands IPv4 addresses in dotted-decimal notation and will return
|
|
|
|
|
an IPv4-mapped IPv6 address (i.e. "127.0.0.1" will be parsed as
|
|
|
|
|
"::FFFF:127.0.0.1".
|
|
|
|
|
|
|
|
|
|
Unlike many other IP parsing routines, scan_ip6if does not recognize octal
|
|
|
|
|
(like \fB0177.0.0.1\fR) or hexadecimal numbers (like \fB0x7f000001\fR)
|
|
|
|
|
in the IPv4 part.
|
|
|
|
|
.SH EXAMPLE
|
|
|
|
|
#include <libowfat/str.h>
|
|
|
|
|
.br
|
|
|
|
|
#include <libowfat/ip6.h>
|
|
|
|
|
|
|
|
|
|
char buf[]="::1%lo";
|
|
|
|
|
char ip[16];
|
|
|
|
|
uint32 scope_id;
|
|
|
|
|
if (scan_ip6if(buf,ip,&scope_id) != str_len(buf))
|
|
|
|
|
parse_error();
|
|
|
|
|
|
|
|
|
|
.SH "SEE ALSO"
|
|
|
|
|
fmt_ip6(3), scan_ip4(3), fmt_ip6if(3)
|
