This feature is included in the Solaris 10 8/07 release.
Starting with this release, the following two types of codeset conversions between the Unicode and Japanese codesets have been added:
In conversion from or to eucJP, PCK (SJIS), and ms932, iconv now supports UTF-16, UCS-2, UTF-32, UCS-4 and their fixed endian variants, such as UTF-16BE and UTF-16LE, and UTF-8.
iconv now supports codeset name eucJP-ms to provide conversion between Japanese EUC and Unicode in the same way as Windows. All Unicode encoding variants mentioned previously, are also supported with eucJP-ms.
For more information, see the iconv_ja(5) man page.