diff options
| -rw-r--r-- | arch/sandbox/cpu/os.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index 01845e3..d6170ad 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -1017,8 +1017,24 @@ void *os_find_text_base(void) return base; } +/** + * os_unblock_signals() - unblock all signals + * + * If we are relaunching the sandbox in a signal handler, we have to unblock + * the respective signal before calling execv(). See signal(7) man-page. + */ +static void os_unblock_signals(void) +{ + sigset_t sigs; + + sigfillset(&sigs); + sigprocmask(SIG_UNBLOCK, &sigs, NULL); +} + void os_relaunch(char *argv[]) { + os_unblock_signals(); + execv(argv[0], argv); os_exit(1); } |