fluffy

commit

8796ec3

parent

c93b760

author

Neale Pickett

date

2021-10-15 20:57:38 -0600 MDT

Add undec and unoct

1@@ -8,6 +8,8 @@ TARGETS += hd
2 TARGETS += pyesc 
3 TARGETS += xor 
4 TARGETS += unhex
5+TARGETS += undec
6+TARGETS += unoct
7 TARGETS += pcat
8 TARGETS += slice
9 TARGETS += hex

 1@@ -105,12 +105,27 @@ You can disable this with `-v`
 2 
 3 ## unhex: unescape hex
 4 
 5-Reads ASCII hex codes on stdin,
 6+Reads octet hex codes on stdin,
 7 writes those octets to stdout.
 8 
 9     $ echo 68 65 6c 6c 6f 0a | unhex
10     hello
11 
12+## undec: unescape decimal
13+
14+Reads octet decimal codes on stdin,
15+writes those octets to stdout.
16+
17+    $ echo 104 101 108 108 111 10 | undec
18+    hello
19+
20+## unoct: unescape octal
21+
22+Reads octet octal codes on stdin,
23+writes those octets to stdout.
24+
25+    $ echo 150 145 154 154 157 012 | unoct 
26+    hello
27 
28 ## xor: xor octets
29 

 1@@ -0,0 +1,48 @@
 2+/*
 3+ * Hex Decoder -- 2012 Zephyr <zephyr@dirtbags.net> This file is in the public domain.  I make no promises about the functionality 
 4+ * of this program. 
 5+ */
 6+
 7+#include <stdio.h>
 8+
 9+int
10+main(int argc, char *argv[])
11+{
12+	unsigned char acc = 0;
13+	unsigned char digit = 0;
14+	unsigned long int count = 0;
15+
16+	while (1) {
17+		int c = getchar();
18+
19+		count += 1;
20+
21+		switch (c) {
22+			case EOF:
23+				return 0;
24+			case ' ':
25+			case '\r':
26+			case '\n':
27+			case '\t':
28+				digit += 3;
29+				break;
30+			case '0' ... '9':
31+				acc = (acc * 10) + c - '0';
32+				digit += 1;
33+				break;
34+			default:
35+				if (digit != 0) {
36+					fprintf(stderr, "Warning: non-numeric character mid-octet at offset %lu\n", count);
37+				}
38+				break;
39+		}
40+
41+		if (digit > 3) {
42+			putchar(acc);
43+			acc = 0;
44+			digit = 0;
45+		}
46+	}
47+
48+	return 0;
49+}

 1@@ -0,0 +1,48 @@
 2+/*
 3+ * Octal Decoder -- 2012 Zephyr <zephyr@dirtbags.net> This file is in the public domain.  I make no promises about the functionality 
 4+ * of this program. 
 5+ */
 6+
 7+#include <stdio.h>
 8+
 9+int
10+main(int argc, char *argv[])
11+{
12+	unsigned char acc = 0;
13+	unsigned char digit = 0;
14+	unsigned long int count = 0;
15+
16+	while (1) {
17+		int c = getchar();
18+
19+		count += 1;
20+
21+		switch (c) {
22+			case EOF:
23+				return 0;
24+			case ' ':
25+			case '\r':
26+			case '\n':
27+			case '\t':
28+				digit += 3;
29+				break;
30+			case '0' ... '7':
31+				acc = (acc * 8) + c - '0';
32+				digit += 1;
33+				break;
34+			default:
35+				if (digit != 0) {
36+					fprintf(stderr, "Warning: non-numeric character mid-octet at offset %lu\n", count);
37+				}
38+				break;
39+		}
40+
41+		if (digit > 3) {
42+			putchar(acc);
43+			acc = 0;
44+			digit = 0;
45+		}
46+	}
47+
48+	return 0;
49+}