2 * Copyright (C) 2015 John Crispin <blogic@openwrt.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License version 2.1
6 * as published by the Free Software Foundation
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
15 #include <sys/types.h>
22 #include "../preload.h"
24 static main_t __main__;
26 static int __preload_main__(int argc, char **argv, char **envp)
28 char *env_file = getenv("SECCOMP_FILE");
30 if (!env_file || !env_file[0]) {
31 ERROR("SECCOMP_FILE not specified\n");
35 if (install_syscall_filter(*argv, env_file))
38 unsetenv("LD_PRELOAD");
39 unsetenv("SECCOMP_FILE");
41 return (*__main__)(argc, argv, envp);
44 int __libc_start_main(main_t main,
50 void (*rtld_fini) (void),
53 start_main_t __start_main__;
55 __start_main__ = dlsym(RTLD_NEXT, "__libc_start_main");
57 INFO("failed to find __libc_start_main %s\n", dlerror());
61 return (*__start_main__)(__preload_main__, argc, argv, auxvec,
62 init, fini, rtld_fini, stack_end);
65 void __uClibc_main(main_t main,
68 void (*app_init)(void),
69 void (*app_fini)(void),
70 void (*rtld_fini)(void),
71 void *stack_end attribute_unused)
73 uClibc_main __start_main__;
75 __start_main__ = dlsym(RTLD_NEXT, "__uClibc_main");
77 INFO("failed to find __uClibc_main %s\n", dlerror());
81 return (*__start_main__)(__preload_main__, argc, argv,
82 app_init, app_fini, rtld_fini, stack_end);