amend gitignore

src/hostname.c

@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <time.h>
+#include "hostname.h"
+
+int choose_hostname(char *buff, size_t len)
+{
+	static const char *suits[] = { "swords", "wands", "pentacles", "cups" };
+	static const char *minor[] = {
+		"ace", "two", "three", "four", "five", "six", "seven", "eight",
+		"nine", "ten", "page", "knight", "queen", "king"
+	};
+	static const char *major[] = {
+		"fool", "magician", "high-priestess", "empress", "emperor",
+		"hierophant", "lovers", "chariot", "strength", "hermit",
+		"wheel", "justice", "hanged-man", "death", "temperance",
+		"devil", "tower", "star", "moon", "sun", "judgment", "world"
+	};
+	struct timespec now = {0};
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	size_t ix = now.tv_nsec % 78;
+	if (ix < sizeof(major) / sizeof(*major)) {
+		snprintf(buff, len, "%05lx-%s", now.tv_sec, major[ix]);
+	} else {
+		ix -= sizeof(major) / sizeof(*major);
+		snprintf(buff, len,
+			 "%05lxc-%s-of-%s",
+			 now.tv_sec,
+			 minor[ix % (sizeof(minor) / sizeof(*minor))],
+			 suits[ix / (sizeof(minor) / sizeof(*minor))]);
+	}
+	return 0;
+}