From f77fae1335c562b720c4a6d4aa710f8627eaaff6 Mon Sep 17 00:00:00 2001
From: Curtis McEnroe <programble@gmail.com>
Date: Wed, 6 Sep 2017 14:01:48 -0400
Subject: Move C code to bin, Makefile, AGPL

---
 home/.bin/xx.c | 117 ---------------------------------------------------------
 1 file changed, 117 deletions(-)
 delete mode 100755 home/.bin/xx.c

(limited to 'home/.bin/xx.c')

diff --git a/home/.bin/xx.c b/home/.bin/xx.c
deleted file mode 100755
index 78d8db4c..00000000
--- a/home/.bin/xx.c
+++ /dev/null
@@ -1,117 +0,0 @@
-#if 0
-exec cc -Wall -Wextra -pedantic $@ -o $(dirname $0)/xx $0
-#endif
-
-// Hexdump.
-
-#include <ctype.h>
-#include <err.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sysexits.h>
-#include <unistd.h>
-
-static bool allZero(const uint8_t *buf, size_t len) {
-    for (size_t i = 0; i < len; ++i)
-        if (buf[i]) return false;
-    return true;
-}
-
-enum {
-    FLAG_ASCII  = 1 << 0,
-    FLAG_OFFSET = 1 << 1,
-    FLAG_SKIP   = 1 << 2,
-    FLAG_UNDUMP = 1 << 3,
-};
-
-static void dump(size_t cols, size_t group, uint8_t flags, FILE *file) {
-    uint8_t buf[cols];
-    size_t offset = 0, len = 0;
-    for (;;) {
-        offset += len;
-        len = fread(buf, 1, sizeof(buf), file);
-        if (!len) break;
-
-        if ((flags & FLAG_SKIP) && len == sizeof(buf)) {
-            static bool skip;
-            if (allZero(buf, len)) {
-                if (!skip) printf("*\n");
-                skip = true;
-                continue;
-            }
-            skip = false;
-        }
-
-        if (flags & FLAG_OFFSET) {
-            printf("%08zx:  ", offset);
-        }
-
-        for (size_t i = 0; i < len; ++i) {
-            if (group && i && !(i % group)) printf(" ");
-            printf("%02x ", buf[i]);
-        }
-
-        if (flags & FLAG_ASCII) {
-            for (size_t i = len; i < cols; ++i) {
-                printf((group && !(i % group)) ? "    " : "   ");
-            }
-            printf(" ");
-            for (size_t i = 0; i < len; ++i) {
-                if (group && i && !(i % group)) printf(" ");
-                printf("%c", isprint(buf[i]) ? buf[i] : '.');
-            }
-        }
-
-        printf("\n");
-        if (len < sizeof(buf)) break;
-    }
-}
-
-static void undump(FILE *file) {
-    uint8_t byte;
-    int match;
-    while (1 == (match = fscanf(file, " %hhx", &byte))) {
-        printf("%c", byte);
-    }
-    if (match == 0) errx(EX_DATAERR, "invalid input");
-}
-
-int main(int argc, char *argv[]) {
-    size_t cols = 16;
-    size_t group = 8;
-    uint8_t flags = FLAG_ASCII | FLAG_OFFSET;
-    char *path = NULL;
-
-    int opt;
-    while (0 < (opt = getopt(argc, argv, "ac:fg:hku"))) {
-        switch (opt) {
-            case 'a': flags ^= FLAG_ASCII; break;
-            case 'f': flags ^= FLAG_OFFSET; break;
-            case 'k': flags ^= FLAG_SKIP; break;
-            case 'u': flags ^= FLAG_UNDUMP; break;
-            case 'c': cols = strtoul(optarg, NULL, 10); break;
-            case 'g': group = strtoul(optarg, NULL, 10); break;
-            default:
-                fprintf(stderr, "usage: xx [-afku] [-c cols] [-g group] [file]\n");
-                return (opt == 'h') ? EX_OK : EX_USAGE;
-        }
-    }
-    if (!cols) return EX_USAGE;
-    if (argc > optind) {
-        path = argv[optind];
-    }
-
-    FILE *file = path ? fopen(path, "r") : stdin;
-    if (!file) err(EX_NOINPUT, "%s", path);
-
-    if (flags & FLAG_UNDUMP) {
-        undump(file);
-    } else {
-        dump(cols, group, flags, file);
-    }
-
-    if (ferror(file)) err(EX_IOERR, "%s", path);
-    return EX_OK;
-}
-- 
cgit 1.4.1