procd: Replace strerror(errno) with %m.

[project/procd.git] / jail / preload.c

diff --git a/jail/preload.c b/jail/preload.c
index 5466f27..24358c6 100644 (file)
--- a/jail/preload.c
+++ b/jail/preload.c
@@ -27,6 +27,11 @@ static int __preload_main__(int argc, char **argv, char **envp)
 {
        char *env_file = getenv("SECCOMP_FILE");
 
+       if (!env_file || !env_file[0]) {
+               ERROR("SECCOMP_FILE not specified\n");
+               return -1;
+       }
+
        if (install_syscall_filter(*argv, env_file))
                return -1;