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| author | Alan Stern <stern@rowland.harvard.edu> | 2011-11-17 16:42:19 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-18 10:51:01 -0800 |
| commit | 0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd (patch) | |
| tree | 6895ca20afb24b38f0246b370cba7dc6e72764cb /drivers/hv | |
| parent | b7463c71fbbff7111d0c879d2f64fe2b08f51848 (diff) | |
| download | lwn-0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd.tar.gz lwn-0720a06a7518c9d0c0125bd5d1f3b6264c55c3dd.zip | |
NLS: improve UTF8 -> UTF16 string conversion routine
The utf8s_to_utf16s conversion routine needs to be improved. Unlike
its utf16s_to_utf8s sibling, it doesn't accept arguments specifying
the maximum length of the output buffer or the endianness of its
16-bit output.
This patch (as1501) adds the two missing arguments, and adjusts the
only two places in the kernel where the function is called. A
follow-on patch will add a third caller that does utilize the new
capabilities.
The two conversion routines are still annoyingly inconsistent in the
way they handle invalid byte combinations. But that's a subject for a
different patch.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/hv_kvp.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c index 89f52440fcf4..0e8343f585bb 100644 --- a/drivers/hv/hv_kvp.c +++ b/drivers/hv/hv_kvp.c @@ -212,11 +212,13 @@ kvp_respond_to_host(char *key, char *value, int error) * The windows host expects the key/value pair to be encoded * in utf16. */ - keylen = utf8s_to_utf16s(key_name, strlen(key_name), - (wchar_t *)kvp_data->data.key); + keylen = utf8s_to_utf16s(key_name, strlen(key_name), UTF16_HOST_ENDIAN, + (wchar_t *) kvp_data->data.key, + HV_KVP_EXCHANGE_MAX_KEY_SIZE / 2); kvp_data->data.key_size = 2*(keylen + 1); /* utf16 encoding */ - valuelen = utf8s_to_utf16s(value, strlen(value), - (wchar_t *)kvp_data->data.value); + valuelen = utf8s_to_utf16s(value, strlen(value), UTF16_HOST_ENDIAN, + (wchar_t *) kvp_data->data.value, + HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2); kvp_data->data.value_size = 2*(valuelen + 1); /* utf16 encoding */ kvp_data->data.value_type = REG_SZ; /* all our values are strings */ |