lcthw/.ex17play.argv

@@ -1 +0,0 @@
-ex17play.bin

lcthw/ex17play.c

@@ -1,109 +0,0 @@
-#include <err.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#define NAME_SIZE 64
-
-struct State {
-	int counter;
-	time_t updated_at;
-	char name[NAME_SIZE];
-	size_t history_entries;
-};
-
-static char *names[] = {
-	"boingo",
-	"barko",
-	"flip",
-	"dingles",
-	"zebra",
-	"horus",
-	"blendy",
-	"kitems",
-	"horple",
-	NULL,
-};
-
-char *random_name()
-{
-	int i = 0;
-	int mod = 0;
-	for (i = 0; names[i] != NULL; i++) {
-		mod = i;
-	}
-
-	return names[random() % mod];
-}
-
-void tick(FILE *fp, int init)
-{
-	struct State *state = malloc(sizeof(struct State));
-	if (!state) {
-		err(EXIT_FAILURE, "Memory error making State");
-	}
-
-	if (init == 0) {
-		size_t read = fread(state, sizeof(struct State), 1, fp);
-
-		fprintf(
-			stderr,
-			"Read %d \"%s\" (%lu byte(s)) from %lu\n",
-			state->counter, state->name, sizeof(struct State) * read, state->updated_at
-		);
-	}
-
-	time_t history[state->history_entries];
-	size_t histories_read = fread(&history, sizeof(time_t), state->history_entries, fp);
-
-	state->counter++;
-	state->updated_at = time(0);
-	strncpy(state->name, random_name(), NAME_SIZE);
-	state->history_entries++;
-
-	rewind(fp);
-
-	size_t wrote = fwrite(state, sizeof(struct State), 1, fp);
-	fwrite(history, sizeof(time_t), sizeof(history) / sizeof(time_t), fp);
-	fwrite(&state->updated_at, sizeof(time_t), 1, fp);
-
-	fprintf(
-		stderr,
-		"Wrote %d \"%s\" (%lu byte(s)) at %lu (history length=%lu)\n",
-		state->counter, state->name, sizeof(struct State) * wrote, state->updated_at,
-		state->history_entries
-	);
-}
-
-int main(int argc, char *argv[])
-{
-	if (argc < 2) {
-		errx(EXIT_FAILURE, "Missing filename argument");
-	}
-
-	int random_seed = time(0);
-	const char *random_seed_str = getenv("RANDOM_SEED");
-	if (random_seed_str) {
-		random_seed = atoi(random_seed_str);
-	}
-
-	srandom(random_seed);
-
-	int init = 0;
-	FILE *fp = fopen(argv[1], "r+");
-
-	if (!fp) {
-		fp = fopen(argv[1], "w+");
-		init = 1;
-	}
-
-	if (!fp) {
-		err(EXIT_FAILURE, "Failed to open file");
-	}
-
-	tick(fp, init);
-	fclose(fp);
-
-	return 0;
-}