dns response handling: don't treat too many addresses as an error

[musl] / src / aio / lio_listio.c

diff --git a/src/aio/lio_listio.c b/src/aio/lio_listio.c
index 8c851ca..a672812 100644 (file)
--- a/src/aio/lio_listio.c
+++ b/src/aio/lio_listio.c
@@ -1,5 +1,7 @@
 #include <aio.h>
 #include <errno.h>
+#include <unistd.h>
+#include <string.h>
 #include "pthread_impl.h"
 
 struct lio_state {
@@ -10,7 +12,7 @@ struct lio_state {
 
 static int lio_wait(struct lio_state *st)
 {
-       int i, err, got_err;
+       int i, err, got_err = 0;
        int cnt = st->cnt;
        struct aiocb **cbs = st->cbs;
 
@@ -41,7 +43,7 @@ static void notify_signal(struct sigevent *sev)
                .si_signo = sev->sigev_signo,
                .si_value = sev->sigev_value,
                .si_code = SI_ASYNCIO,
-               .si_pid = __pthread_self()->pid,
+               .si_pid = getpid(),
                .si_uid = getuid()
        };
        __syscall(SYS_rt_sigqueueinfo, si.si_pid, si.si_signo, &si);
@@ -64,7 +66,7 @@ static void *wait_thread(void *p)
        return 0;
 }
 
-int lio_listio(int mode, struct aiocb *const cbs[], int cnt, struct sigevent *sev)
+int lio_listio(int mode, struct aiocb *restrict const *restrict cbs, int cnt, struct sigevent *restrict sev)
 {
        int i, ret;
        struct lio_state *st=0;
@@ -81,7 +83,7 @@ int lio_listio(int mode, struct aiocb *const cbs[], int cnt, struct sigevent *se
                }
                st->cnt = cnt;
                st->sev = sev;
-               memcpy(st->cbs, cbs, cnt*sizeof *cbs);
+               memcpy(st->cbs, (void*) cbs, cnt*sizeof *cbs);
        }
 
        for (i=0; i<cnt; i++) {
@@ -106,12 +108,12 @@ int lio_listio(int mode, struct aiocb *const cbs[], int cnt, struct sigevent *se
        if (mode == LIO_WAIT) {
                ret = lio_wait(st);
                free(st);
-               return 0;
+               return ret;
        }
 
        if (st) {
                pthread_attr_t a;
-               sigset_t set;
+               sigset_t set, set_old;
                pthread_t td;
 
                if (sev->sigev_notify == SIGEV_THREAD) {
@@ -126,15 +128,14 @@ int lio_listio(int mode, struct aiocb *const cbs[], int cnt, struct sigevent *se
                }
                pthread_attr_setdetachstate(&a, PTHREAD_CREATE_DETACHED);
                sigfillset(&set);
-               pthread_sigmask(SIG_BLOCK, &set, &set);
+               pthread_sigmask(SIG_BLOCK, &set, &set_old);
                if (pthread_create(&td, &a, wait_thread, st)) {
                        free(st);
                        errno = EAGAIN;
                        return -1;
                }
-               pthread_sigmask(SIG_SETMASK, &set, 0);
+               pthread_sigmask(SIG_SETMASK, &set_old, 0);
        }
 
        return 0;
 }
-