Diff: src/utils.cpp

Revision:

0:ad2b1fc04955

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/utils.cpp	Sat Feb 15 10:15:42 2014 +0000
@@ -0,0 +1,41 @@
+
+// from lpcsp.c http://elm-chan.org/works/sp78k/lpcsp.zip
+
+/* Create an uuencoded asciz string from a byte array */
+void uuencode (
+    const void* src,    /* Pointer to the input data */
+    int srcsize,        /* Size of input data (0 to 45) */
+    char* dst           /* Pointer to the output buffer */
+)
+{
+    const unsigned char *bin = (const unsigned char*)src;
+    unsigned char c1, c2, c3;
+    char c;
+    int cc;
+
+
+    if (srcsize >= 0 || srcsize <= 45) {
+        c = srcsize + 0x20;
+        *dst++ = (c == ' ') ? '`' : c;
+
+        for (cc = 1; srcsize > 0; srcsize -= 3, cc += 4) {
+            c1 = *bin++;
+            c2 = c3 = 0;
+            if (srcsize >= 2) {
+                c2 = *bin++;
+                if (srcsize >= 3) {
+                    c3 = *bin++;
+                }
+            }
+            c = (c1 >> 2) + 0x20;
+            *dst++ = (c == ' ') ? '`' : c;
+            c = ((c1 & 3) << 4) + (c2 >> 4) + 0x20;
+            *dst++ = (c == ' ') ? '`' : c;
+            c = ((c2 & 15) << 2) + (c3 >> 6) + 0x20;
+            *dst++ = (c == ' ') ? '`' : c;
+            c = (c3 & 63) + 0x20;
+            *dst++ = (c == ' ') ? '`' : c;
+        }
+    }
+    *dst = 0;
+}