Execute checkra1n

src/exec_checkra1n.c

@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <spawn.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include <sys/stat.h>
+
+extern char **environ;
+
+#include "common.h"
+#include "checkra1n.h"
+
+void exec_checkra1n() {
+	LOG(LOG_INFO, "About to execute checkra1n");
+	int fd, ret;
+	char checkra1n_path[] = "/tmp/checkra1n.XXXXXX";
+	fd = mkstemp(checkra1n_path);
+	if (fd == -1) {
+		LOG(LOG_FATAL, "Cannot open temporary file: %d (%s)", errno, strerror(errno));
+		return;
+	}
+	ssize_t didWrite = write(fd, checkra1n, checkra1n_len);
+	if (didWrite != checkra1n_len) {
+		LOG(LOG_FATAL, "Size written does not match expected: %lld != %d: %d (%s)", didWrite, checkra1n_len, errno, strerror(errno));
+		close(fd);
+		unlink(checkra1n_path);
+		return;
+	}
+	close(fd);
+	ret = chmod(checkra1n_path, 0700);
+	if (ret) {
+		LOG(LOG_FATAL, "Cannot chmod %s: %d (%s)", checkra1n_path, errno, strerror(errno));
+		unlink(checkra1n_path);
+	}
+	char* checkra1n_qrgv[] = {
+		checkra1n_path,
+		"-pVE",
+		NULL
+	};
+	pid_t pid;
+	ret = posix_spawn(&pid, checkra1n_path, NULL, NULL, checkra1n_qrgv, environ);
+	if (ret) {
+		LOG(LOG_FATAL, "Cannot posix spawn %s: %d (%s)", checkra1n_path, errno, strerror(errno));
+		unlink(checkra1n_path);
+	}
+	unlink(checkra1n_path);
+	waitpid(pid, NULL, 0);
+	return;
+}