diff options
Diffstat (limited to 'util/libreboot-utils/lottery.c')
| -rw-r--r-- | util/libreboot-utils/lottery.c | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/util/libreboot-utils/lottery.c b/util/libreboot-utils/lottery.c index 089c5bc4..fd0728fd 100644 --- a/util/libreboot-utils/lottery.c +++ b/util/libreboot-utils/lottery.c @@ -2,20 +2,74 @@ * Copyright (c) 2026 Leah Rowe <leah@libreboot.org> /| |\ Something something non-determinism / \ */ +#include <ctype.h> +#include <stddef.h> #include <stdio.h> #include <stdint.h> +#include <string.h> +#include <stdlib.h> #include "include/common.h" +static void +spew_buf(const void *data, size_t len); + int main(int argc, char **argv) { int same = 0; + char *buf; + (void) argc, (void) argv; xpledgex("stdio", NULL); - if (rsize(SIZE_MAX) == rsize(SIZE_MAX)) + buf = mkrbuf(BUFSIZ + 1); + if (!memcmp(buf, buf + (BUFSIZ >> 1), BUFSIZ >> 1)) same = 1; - printf("%s\n", same ? "You win!" : "You lose!"); + if (argc < 2) /* no spew */ + spew_buf(buf, BUFSIZ); + free(buf); + + fprintf(stderr, "\n%s\n", same ? "You win!" : "You lose!"); return same ^ 1; } + +static void +spew_buf(const void *data, size_t len) +{ + const unsigned char *buf = data; + unsigned char c; + size_t i, j; + + if (buf == NULL || + len == 0) + return; + + for (i = 0; i < len; i += 16) { + + printf("%08zx ", i); + + for (j = 0; j < 16; j++) { + + if (i + j < len) + printf("%02x ", buf[i + j]); + else + printf(" "); + + if (j == 7) + printf(" "); + } + + printf(" |"); + + for (j = 0; j < 16 && i + j < len; j++) { + + c = buf[i + j]; + printf("%c", isprint(c) ? c : '.'); + } + + printf("|\n"); + } + + printf("%08zx\n", len); +} |