From 712530e52091520f8f2bf347dc9ecb4030d9c4ed Mon Sep 17 00:00:00 2001
From: Lieuwe Rooijakkers <lieuwerooijakkers@gmail.com>
Date: Sat, 13 Jul 2024 22:07:53 +0200
Subject: tak

---
 src/tak.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/tak.c

diff --git a/src/tak.c b/src/tak.c
new file mode 100644
index 0000000..dc3eda5
--- /dev/null
+++ b/src/tak.c
@@ -0,0 +1,48 @@
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "util/map.h"
+
+int entry_tak(int argc, char **argv) {
+  if (argc == 2 && strcmp(argv[1], "-h") == 0) {
+    fprintf(stderr, "Gebruik: tak [BESTAND]...\n"
+                    "\n"
+                    "Schakel BESTAND(en) aaneen naar standaard uitvoer omgekeerd..\n");
+    return 0;
+  }
+
+  for (int i = argc-1; i >= 1; i--) {
+    const char *fname = argv[i];
+    struct map *map = open_map(fname);
+
+    char *lstart, *lend;
+    lend = &map->addr[map->sb.st_size - 1];
+
+    while (lend > map->addr) {
+      if (*lend == '\n') {
+        lend--;
+      }
+
+      lstart = lend;
+      while (*lstart != '\n' && lstart != map->addr) {
+        lstart--;
+      }
+      if (lstart != map->addr) {
+        lstart++;
+      }
+
+      printf("%.*s\n", lend - lstart + 1, lstart);
+
+      lend = lstart-1;
+    }
+
+    close_map(map);
+  }
+
+  return 0;
+}
-- 
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