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-rw-r--r--toys/posix/uuencode.c67
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");
+}