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>
23 #include "../preload.h"
25 static main_t __main__
;
28 static int __preload_main__(int argc
, char **argv
, char **envp
)
30 char *env_file
= getenv("SECCOMP_FILE");
31 char *env_debug
= getenv("SECCOMP_DEBUG");
33 if (!env_file
|| !env_file
[0]) {
34 ERROR("SECCOMP_FILE not specified\n");
39 debug
= atoi(env_debug
);
43 if (install_syscall_filter(*argv
, env_file
))
46 unsetenv("LD_PRELOAD");
47 unsetenv("SECCOMP_DEBUG");
48 unsetenv("SECCOMP_FILE");
50 return (*__main__
)(argc
, argv
, envp
);
53 int __libc_start_main(main_t main
,
59 void (*rtld_fini
) (void),
62 start_main_t __start_main__
;
64 __start_main__
= dlsym(RTLD_NEXT
, "__libc_start_main");
65 if (!__start_main__
) {
66 INFO("failed to find __libc_start_main %s\n", dlerror());
72 return (*__start_main__
)(__preload_main__
, argc
, argv
, auxvec
,
73 init
, fini
, rtld_fini
, stack_end
);
76 void __uClibc_main(main_t main
,
79 void (*app_init
)(void),
80 void (*app_fini
)(void),
81 void (*rtld_fini
)(void),
82 void *stack_end attribute_unused
)
84 uClibc_main __start_main__
;
86 __start_main__
= dlsym(RTLD_NEXT
, "__uClibc_main");
87 if (!__start_main__
) {
88 INFO("failed to find __uClibc_main %s\n", dlerror());
94 return (*__start_main__
)(__preload_main__
, argc
, argv
,
95 app_init
, app_fini
, rtld_fini
, stack_end
);