1 files changed, 67 insertions, 0 deletions
diff --git a/toys/posix/uuencode.c b/toys/posix/uuencode.c
new file mode 100644
index 00000000..78d199a9
--- /dev/null
+++ b/toys/posix/uuencode.c
@@ -0,0 +1,67 @@
+/* uuencode.c - uuencode / base64 encode
+ *
+ * Copyright 2013 Erich Plondke <toybox@erich.wreck.org>
+ *
+ * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/uuencode.html
+
+USE_UUENCODE(NEWTOY(uuencode, "<1>2m", TOYFLAG_USR|TOYFLAG_BIN))
+
+config UUENCODE
+  bool "uuencode"
+  default y 
+  help
+    usage: uuencode [-m] [file] encode-filename
+
+    Uuencode stdin (or file) to stdout, with encode-filename in the output.
+
+    -m	base64-encode
+*/
+
+#define FOR_uuencode
+#include "toys.h"
+
+void uuencode_main(void)
+{
+  char *p, *name = toys.optargs[toys.optc-1], buf[(76/4)*3];
+
+  int i, m = toys.optflags & FLAG_m, fd = 0;
+
+  if (toys.optc > 1) fd = xopen(toys.optargs[0], O_RDONLY);
+
+  // base64 table
+
+  p = toybuf;
+  for (i = 'A'; i != ':'; i++) {
+    if (i == 'Z'+1) i = 'a';
+    if (i == 'z'+1) i = '0';
+    *(p++) = i;
+  }
+  *(p++) = '+';
+  *(p++) = '/';
+
+  xprintf("begin%s 744 %s\n", m ? "-base64" : "", name);
+  for (;;) {
+    char *in;
+
+    if (!(i = xread(fd, buf, m ? sizeof(buf) : 45))) break;
+
+    if (!m) xputc(i+32);
+    in = buf;
+
+    for (in = buf; in-buf < i; ) {
+      int j, x, bytes = i - (in-buf);
+
+      if (bytes > 3) bytes = 3;
+
+      for (j = x = 0; j<4; j++) {
+        int out;
+
+        if (j < bytes) x |= (*(in++) & 0x0ff) << (8*(2-j));
+        out = (x>>((3-j)*6)) & 0x3f;
+        xputc(m ? j > bytes ? '=' : toybuf[out] : out + 0x20);
+      } 
+    }
+    xputc('\n');
+  }
+  xputs(m ? "====" : "end");
+}