#include <osi.h>
#include <rx/rx.h>
+#define STRSAFE_NO_DEPRECATE
+#include <strsafe.h>
+
static osi_once_t cm_utilsOnce;
cm_spaceListp = tsp;
lock_ReleaseWrite(&cm_utilsLock);
}
+
+/* This is part of the Microsoft Internationalized Domain Name
+ Mitigation APIs. */
+#include <normalization.h>
+
+int
+(WINAPI *pNormalizeString)( __in NORM_FORM NormForm,
+ __in_ecount(cwSrcLength) LPCWSTR lpSrcString,
+ __in int cwSrcLength,
+ __out_ecount(cwDstLength) LPWSTR lpDstString,
+ __in int cwDstLength ) = NULL;
+
+BOOL
+(WINAPI *pIsNormalizedString)( __in NORM_FORM NormForm,
+ __in_ecount(cwLength) LPCWSTR lpString,
+ __in int cwLength ) = NULL;
+
+
+#define NLSDLLNAME "Normaliz.dll"
+#define NLSMAXCCH 1024
+#define NLSERRCCH 8
+
+#define AFS_NORM_FORM NormalizationC
+
+long cm_InitNormalization(void)
+{
+ HMODULE h_Nls;
+
+ if (pNormalizeString != NULL)
+ return 0;
+
+ h_Nls = LoadLibrary(NLSDLLNAME);
+ if (h_Nls == INVALID_HANDLE_VALUE) {
+ afsi_log("Can't load " NLSDLLNAME ": LastError=%d", GetLastError());
+ return 1;
+ }
+
+ pNormalizeString = GetProcAddress(h_Nls, "NormalizeString");
+ pIsNormalizedString = GetProcAddress(h_Nls, "IsNormalizedString");
+
+ return (pNormalizeString && pIsNormalizedString);
+}
+
+/* \brief Normalize a UTF-16 string.
+
+ If the supplied destination buffer is
+ insufficient or NULL, then a new buffer will be allocated to hold
+ the normalized string.
+
+ \param[in] src : Source UTF-16 string. Length is specified in
+ cch_src.
+
+ \param[in] cch_src : The character count in cch_src is assumed to
+ be tight and include the terminating NULL character if there is
+ one. If the NULL is absent, the resulting string will not be
+ NULL terminated.
+
+ \param[out] ext_dest : The destination buffer. Can be NULL, in
+ which case *pcch_dest MUST be NULL.
+
+ \param[in,out] pcch_dest : On entry *pcch_dest contains a count of
+ characters in the destination buffer. On exit, it will contain
+ a count of characters that were copied to the destination
+ buffer.
+
+ Returns a pointer to the buffer containing the normalized string or
+ NULL if the call was unsuccessful. If the returned destination
+ buffer is different fron the supplied buffer and non-NULL, it
+ should be freed using free().
+*/
+static wchar_t *
+NormalizeUtf16String(const wchar_t * src, int cch_src, wchar_t * ext_dest, int *pcch_dest)
+{
+ if ((pIsNormalizedString && (*pIsNormalizedString)(AFS_NORM_FORM, src, cch_src)) ||
+ (!pNormalizeString)) {
+
+ int rv;
+ DWORD gle;
+ int tries = 10;
+ wchar_t * dest;
+ int cch_dest = *pcch_dest;
+
+ dest = ext_dest;
+
+ while (tries-- > 0) {
+
+ rv = (*pNormalizeString)(AFS_NORM_FORM, src, cch_src, dest, cch_dest);
+
+ if (rv <= 0 && (gle = GetLastError()) != ERROR_SUCCESS) {
+#ifdef DEBUG
+ osi_Log1(afsd_logp, "NormalizeUtf16String error = %d", gle);
+#endif
+ if (gle == ERROR_INSUFFICIENT_BUFFER) {
+
+ /* The buffer wasn't big enough. We are going to
+ try allocating one. */
+
+ cch_dest = (-rv) + NLSERRCCH;
+ goto cont;
+
+ } else {
+ /* Something else is wrong */
+ break;
+ }
+
+ } else if (rv < 0) { /* rv < 0 && gle == ERROR_SUCCESS */
+
+ /* Technically not one of the expected outcomes */
+ break;
+
+ } else { /* rv > 0 || (rv == 0 && gle == ERROR_SUCCESS) */
+
+ /* Possibly succeeded */
+
+ if (rv == 0) { /* Succeeded and the return string is empty */
+ *pcch_dest = 0;
+ return dest;
+ }
+
+ if (cch_dest == 0) {
+ /* Nope. We only calculated the required size of the buffer */
+
+ cch_dest = rv + NLSERRCCH;
+ goto cont;
+ }
+
+ *pcch_dest = rv;
+
+ /* Success! */
+ return dest;
+ }
+
+ cont:
+ if (dest != ext_dest && dest)
+ free(dest);
+ dest = malloc(cch_dest * sizeof(wchar_t));
+ }
+
+ /* Failed */
+
+ if (dest != ext_dest && dest)
+ free(dest);
+
+ *pcch_dest = 0;
+ return NULL;
+ } else {
+
+ /* No need to or unable to normalize. Just copy the string */
+ if (SUCCEEDED(StringCchCopyNW(ext_dest, *pcch_dest, src, cch_src))) {
+ *pcch_dest = cch_src;
+ return ext_dest;
+ } else {
+ *pcch_dest = 0;
+ return NULL;
+ }
+ }
+}
+
+/* \brief Normalize a UTF-16 string into a UTF-8 string.
+
+ \param[in] src : Source string.
+
+ \param[in] cch_src : Count of characters in src. If the count includes the
+ NULL terminator, then the resulting string will be NULL
+ terminated. If it is -1, then src is assumed to be NULL
+ terminated.
+
+ \param[out] adest : Destination buffer.
+
+ \param[in] cch_adest : Number of characters in the destination buffer.
+
+ Returns the number of characters stored into cch_adest. This will
+ include the terminating NULL if cch_src included the terminating
+ NULL or was -1. If this is 0, then the operation was unsuccessful.
+ */
+long cm_NormalizeUtf16StringToUtf8(const wchar_t * src, int cch_src,
+ char * adest, int cch_adest)
+{
+ if (cch_src < 0) {
+ size_t cch;
+
+ if (FAILED(StringCchLengthW(src, NLSMAXCCH, &cch)))
+ return CM_ERROR_TOOBIG;
+
+ cch_src = cch+1;
+ }
+
+ {
+ wchar_t nbuf[NLSMAXCCH];
+ wchar_t * normalized;
+ int cch_norm = NLSMAXCCH;
+
+ normalized = NormalizeUtf16String(src, cch_src, nbuf, &cch_norm);
+ if (normalized) {
+ cch_adest = WideCharToMultiByte(CP_UTF8, 0, normalized, cch_norm,
+ adest, cch_adest, NULL, 0);
+
+ if (normalized != nbuf && normalized)
+ free(normalized);
+
+ return cch_adest;
+
+ } else {
+
+ return 0;
+
+ }
+ }
+}
+
+
+/* \brief Normalize a UTF-8 string.
+
+ \param[in] src String to normalize.
+
+ \param[in] cch_src : Count of characters in src. If this value is
+ -1, then src is assumed to be NULL terminated. The translated
+ string will be NULL terminated only if this is -1 or the count
+ includes the terminating NULL.
+
+ \param[out] adest : Destination string.
+
+ \param[in] cch_adest : Number of characters in the destination
+ string.
+
+ Returns the number of characters stored into adest or 0 if the call
+ was unsuccessful.
+ */
+long cm_NormalizeUtf8String(const char * src, int cch_src,
+ char * adest, int cch_adest)
+{
+ wchar_t wsrcbuf[NLSMAXCCH];
+ wchar_t *wnorm;
+ int cch;
+ int cch_norm;
+
+ /* Get some edge cases out first, so we don't have to worry about
+ cch_src being 0 etc. */
+ if (cch_src == 0) {
+ return 0;
+ } else if (*src == '\0') {
+ *adest = '\0';
+ return 1;
+ }
+
+ cch = MultiByteToWideChar(CP_UTF8, 0, src, cch_src * sizeof(char),
+ wsrcbuf, NLSMAXCCH);
+
+ if (cch == 0) {
+#ifdef DEBUG
+ DebugBreak();
+#endif
+ return 0;
+ }
+
+ cch_norm = 0;
+ wnorm = NormalizeUtf16String(wsrcbuf, cch, NULL, &cch_norm);
+ if (wnorm == NULL) {
+#ifdef DEBUG
+ DebugBreak();
+#endif
+ return 0;
+ }
+
+ cch = WideCharToMultiByte(CP_UTF8, 0, wnorm, cch_norm,
+ adest, cch_adest * sizeof(char),
+ NULL, FALSE);
+
+ if (wnorm)
+ free(wnorm);
+
+ return cch;
+}
git://git.openafs.org / openafs.git / blobdiff