inetd: suppress aliasing warning

function                                             old     new   delta
sigprocmask2                                           -       8      +8
wait_for_child_or_signal                             213     218      +5
dowait                                               424     429      +5
block_CHLD_HUP_ALRM                                   62      59      -3
sigprocmask_SIG_SETMASK                               16       -     -16
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 2/1 up/down: 18/-19)             Total: -1 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

5 files changed, 7 insertions, 7 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 638c58412..daa96728b 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -544,8 +544,8 @@ void sig_unblock(int sig) FAST_FUNC;
 int sigaction_set(int sig, const struct sigaction *act) FAST_FUNC;
 /* SIG_BLOCK/SIG_UNBLOCK all signals: */
 int sigprocmask_allsigs(int how) FAST_FUNC;
-/* SIG_SETMASK set, and return old set in the same set: */
-int sigprocmask_SIG_SETMASK(sigset_t *set) FAST_FUNC;
+/* Return old set in the same set: */
+int sigprocmask2(int how, sigset_t *set) FAST_FUNC;
 /* Standard handler which just records signo */
 extern smallint bb_got_signal;
 void record_signo(int signo); /* not FAST_FUNC! */
diff --git a/libbb/signals.c b/libbb/signals.c
index 5a1544db7..d3d84ef6a 100644
--- a/libbb/signals.c
+++ b/libbb/signals.c
@@ -31,14 +31,14 @@ int FAST_FUNC sigprocmask_allsigs(int how)
         return sigprocmask(how, &set, NULL);
 }
 
-int FAST_FUNC sigprocmask_SIG_SETMASK(sigset_t *set)
+int FAST_FUNC sigprocmask2(int how, sigset_t *set)
 {
         // Grr... gcc 8.1.1:
         // "passing argument 3 to restrict-qualified parameter aliases with argument 2"
         // dance around that...
         sigset_t *oset FIX_ALIASING;
         oset = set;
-        return sigprocmask(SIG_SETMASK, set, oset);
+        return sigprocmask(how, set, oset);
 }
 
 void FAST_FUNC bb_signals(int sigs, void (*f)(int))
diff --git a/networking/inetd.c b/networking/inetd.c
index ca1a97268..8f871ee12 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -488,7 +488,7 @@ static void block_CHLD_HUP_ALRM(sigset_t *m)
         sigaddset(m, SIGCHLD);
         sigaddset(m, SIGHUP);
         sigaddset(m, SIGALRM);
-        sigprocmask(SIG_BLOCK, m, m); /* old sigmask is stored in m */
+        sigprocmask2(SIG_BLOCK, m); /* old sigmask is stored in m */
 }
 
 static void restore_sigmask(sigset_t *m)
diff --git a/shell/ash.c b/shell/ash.c
index 456aca4f0..a01c8fa8b 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -4217,7 +4217,7 @@ wait_block_or_sig(int *status)
                 /* Children exist, but none are ready. Sleep until interesting signal */
 #if 1
                 sigfillset(&mask);
-                sigprocmask_SIG_SETMASK(&mask); /* mask is updated */
+                sigprocmask2(SIG_SETMASK, &mask); /* mask is updated */
                 while (!got_sigchld && !pending_sig)
                         sigsuspend(&mask);
                 sigprocmask(SIG_SETMASK, &mask, NULL);
diff --git a/shell/hush.c b/shell/hush.c
index 5953ceb9f..2e4a4bcc6 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -11442,7 +11442,7 @@ static int wait_for_child_or_signal(struct pipe *waitfor_pipe, pid_t waitfor_pid
                  * and get stuck in sigsuspend...
                  */
                 sigfillset(&oldset); /* block all signals, remember old set */
-                sigprocmask_SIG_SETMASK(&oldset);
+                sigprocmask2(SIG_SETMASK, &oldset);
 
                 if (!sigisemptyset(&G.pending_set)) {
                         /* Crap! we raced with some signal! */