diff options
Diffstat (limited to 'src/basic')
| -rw-r--r-- | src/basic/nss-util.h | 2 | ||||
| -rw-r--r-- | src/basic/signal-util.h | 11 |
2 files changed, 13 insertions, 0 deletions
diff --git a/src/basic/nss-util.h b/src/basic/nss-util.h index cc30d93aad..4be0136da6 100644 --- a/src/basic/nss-util.h +++ b/src/basic/nss-util.h @@ -27,6 +27,8 @@ #include <pwd.h> #include <resolv.h> +#define NSS_SIGNALS_BLOCK SIGALRM,SIGVTALRM,SIGPIPE,SIGCHLD,SIGTSTP,SIGIO,SIGHUP,SIGUSR1,SIGUSR2,SIGPROF,SIGURG,SIGWINCH + #define NSS_GETHOSTBYNAME_PROTOTYPES(module) \ enum nss_status _nss_##module##_gethostbyname4_r( \ const char *name, \ diff --git a/src/basic/signal-util.h b/src/basic/signal-util.h index e7393e2dac..5d94d1c363 100644 --- a/src/basic/signal-util.h +++ b/src/basic/signal-util.h @@ -41,3 +41,14 @@ int signal_from_string(const char *s) _pure_; int signal_from_string_try_harder(const char *s); void nop_signal_handler(int sig); + +static inline void block_signals_reset(sigset_t *ss) { + assert_se(sigprocmask(SIG_SETMASK, ss, NULL) >= 0); +} + +#define BLOCK_SIGNALS(...) \ + _cleanup_(block_signals_reset) sigset_t _saved_sigset = ({ \ + sigset_t t; \ + assert_se(sigprocmask_many(SIG_BLOCK, &t, __VA_ARGS__, -1) >= 0); \ + t; \ + }) |