diff options
Diffstat (limited to 'lib/misc.c')
| -rw-r--r-- | lib/misc.c | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -321,6 +321,44 @@ char *strip_newlines( char *source ) return source; } +/* Wrap an IPv4 address into IPv6 space. Not thread-safe... */ +char *ipv6_wrap( char *src ) +{ + static char dst[64]; + int i; + + for( i = 0; src[i]; i ++ ) + if( ( src[i] < '0' || src[i] > '9' ) && src[i] != '.' ) + break; + + /* Hmm, it's not even an IP... */ + if( src[i] ) + return src; + + g_snprintf( dst, sizeof( dst ), "::ffff:%s", src ); + + return dst; +} + +/* Unwrap an IPv4 address into IPv6 space. Thread-safe, because it's very simple. :-) */ +char *ipv6_unwrap( char *src ) +{ + int i; + + if( g_strncasecmp( src, "::ffff:", 7 ) != 0 ) + return src; + + for( i = 7; src[i]; i ++ ) + if( ( src[i] < '0' || src[i] > '9' ) && src[i] != '.' ) + break; + + /* Hmm, it's not even an IP... */ + if( src[i] ) + return src; + + return ( src + 7 ); +} + /* Convert from one charset to another. from_cs, to_cs: Source and destination charsets |