04Jul05

[bacula/bacula] / bacula / src / lib / bsys.c

diff --git a/bacula/src/lib/bsys.c b/bacula/src/lib/bsys.c
index 5bf1a8098c882610a1cf7bac24d5c133267eff4a..8b640dd0ba76db9f3d325590b729f26d812dc09f 100644 (file)
--- a/bacula/src/lib/bsys.c
+++ b/bacula/src/lib/bsys.c
@@ -118,6 +118,57 @@ char *bstrncat(char *dest, POOL_MEM &src, int maxlen)
    return dest;
 }
 
+/*
+ * Get character length of UTF-8 string
+ *
+ * Valid UTF-8 codes
+ * U-00000000 - U-0000007F: 0xxxxxxx 
+ * U-00000080 - U-000007FF: 110xxxxx 10xxxxxx 
+ * U-00000800 - U-0000FFFF: 1110xxxx 10xxxxxx 10xxxxxx 
+ * U-00010000 - U-001FFFFF: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 
+ * U-00200000 - U-03FFFFFF: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 
+ * U-04000000 - U-7FFFFFFF: 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+ */
+int cstrlen(const char *str)
+{
+   uint8_t *p = (uint8_t *)str;
+   int len = 0;
+   while (*p) {
+      if ((*p & 0xC0) != 0xC0) {
+         p++;
+         len++;
+         continue;
+      }
+      if ((*p & 0xD0) == 0xC0) {
+         p += 2;
+         len++;
+         continue;
+      }
+      if ((*p & 0xF0) == 0xD0) {
+         p += 3;
+         len++;
+         continue;
+      }
+      if ((*p & 0xF8) == 0xF0) {
+         p += 4;
+         len++;
+         continue;
+      }
+      if ((*p & 0xFC) == 0xF8) {
+         p += 5;
+         len++;
+         continue;
+      }
+      if ((*p & 0xFE) == 0xFC) {
+         p += 6;
+         len++;
+         continue;
+      }
+      p++;                      /* Shouln't get here but must advance */
+   }
+   return len;
+}
+
 
 
 #ifndef DEBUG