diff options
Diffstat (limited to 'util/libreboot-utils/lottery.c')
| -rw-r--r-- | util/libreboot-utils/lottery.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/util/libreboot-utils/lottery.c b/util/libreboot-utils/lottery.c index 4c3b0f70..f31e3fd9 100644 --- a/util/libreboot-utils/lottery.c +++ b/util/libreboot-utils/lottery.c @@ -7,26 +7,39 @@ #endif #include <stdio.h> +#include <string.h> + #include "include/common.h" +#define MAX_ALLOC (1 << 17) + +static int win_lottery(char **s); + int main(int argc, char *argv[]) { - int lucky; + char *s = ""; + int lucky = 0; + #if defined(__OpenBSD__) && defined(OpenBSD) #if (OpenBSD) >= 509 if (pledge("stdio", NULL) == -1) err_no_cleanup(0, errno, "openbsd won it"); #endif #endif - setvbuf(stdout, NULL, _IONBF, 0); - - lucky = win_lottery(); + printf("%s\n", (lucky = win_lottery(&s)) ? "You won!" : "You lose!"); + return lucky ^ 1; +} - printf("%s\n", lucky ? "You won!" : "You lose! Sorry!"); - return lucky ? EXIT_SUCCESS : EXIT_FAILURE; +static int +win_lottery(char **s) /* are u lucky? */ +{ + size_t size[2] = { rsize(MAX_ALLOC), rsize(MAX_ALLOC) }; + return (size[0] && size[0] == size[1] && size[0] <= MAX_ALLOC << 1 && + s != NULL) && (memcmp(*s = mkrbuf(size[0] << 1), *s + size[0], + size[0]) ? 0 : 1); }/* ( >:3 ) - /| |\ + /| |\ it could be you! / \ */ |