trustbridge: common/strhelp.c comparison

Add utf16 conversion functions for Windows. This also includes a null pointer checking free.

author	Andre Heinecke <aheinecke@intevation.de>
date	Tue, 01 Apr 2014 10:48:35 +0000
parents	4def8b263dd3
children	c4a989a0d6cf

comparison

equal deleted inserted replaced

-:1e112cf41e92
+:c596568fa45b
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
 #include <polarssl/base64.h>
+#ifdef WIN32
+#include <windows.h>
+#endif
 /* Remarks regarding the "Flawfinder: ignore" comments in this file:
 *
 * - strlen:
 *
 *dst = NULL;
 *dst_size = 0;
 }
 return ret;
 }
+void
+xfree (void *p)
+{
+if (p)
+free (p);
+}
+#ifdef WIN32
+/* Adapted from GPGOL rev. e512053 */
+char *
+wchar_to_utf8 (const wchar_t *string, size_t len)
+{
+int n, ilen;
+char *result;
+ilen = (int) len;
+if (ilen < 0)
+return NULL;
+/* Note, that CP_UTF8 is not defined in Windows versions earlier
+than NT.*/
+n = WideCharToMultiByte (CP_UTF8, 0, string, ilen, NULL, 0, NULL, NULL);
+if (n < 0)
+return NULL;
+result = xmalloc ((size_t)n+1);
+n = WideCharToMultiByte (CP_UTF8, 0, string, ilen, result, n, NULL, NULL);
+if (n < 0)
+{
+xfree (result);
+return NULL;
+}
+return result;
+}
+/* Adapted from GPGOL rev. e512053 */
+wchar_t *
+utf8_to_wchar (const char *string, size_t len)
+{
+int n, ilen;
+wchar_t *result;
+ilen = (int) len;
+if (ilen < 0)
+return NULL;
+n = MultiByteToWideChar (CP_UTF8, 0, string, ilen, NULL, 0);
+if (n < 0 || n + 1 < 0)
+return NULL;
+result = xmalloc ((size_t)(n+1) * sizeof *result);
+n = MultiByteToWideChar (CP_UTF8, 0, string, ilen, result, n);
+if (n < 0)
+{
+xfree (result);
+return NULL;
+}
+result[n] = 0;
+return result;
+}
+#endif

Mercurial > trustbridge