From b79e4416fe642976111a2d610a19c3e4696bb2e2 Mon Sep 17 00:00:00 2001
From: netblue30 <netblue30@protonmail.com>
Date: Tue, 18 May 2021 13:49:02 -0400
Subject: jailtest -> jailcheck (#4268)

---
 src/jailcheck/seccomp.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 src/jailcheck/seccomp.c

(limited to 'src/jailcheck/seccomp.c')

diff --git a/src/jailcheck/seccomp.c b/src/jailcheck/seccomp.c
new file mode 100644
index 000000000..9345eb970
--- /dev/null
+++ b/src/jailcheck/seccomp.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2014-2021 Firejail Authors
+ *
+ * This file is part of firejail project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#include "jailcheck.h"
+#define MAXBUF 4096
+
+void seccomp_test(pid_t pid) {
+	char *file;
+	if (asprintf(&file, "/proc/%d/status", pid) == -1)
+		errExit("asprintf");
+
+	FILE *fp = fopen(file, "r");
+	if (!fp) {
+		printf("  Error: cannot open %s\n", file);
+		free(file);
+		return;
+	}
+
+	char buf[MAXBUF];
+	while (fgets(buf, MAXBUF, fp)) {
+		if (strncmp(buf, "Seccomp:", 8) == 0) {
+			int val = -1;
+			int rv = sscanf(buf + 8, "\t%d", &val);
+			if (rv != 1 || val == 0)
+				printf("   Warning: seccomp not enabled\n");
+			break;
+		}
+	}
+	fclose(fp);
+	free(file);
+}
-- 
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