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-rw-r--r--source3/include/proto.h1
-rw-r--r--source3/lib/util_sock.c27
2 files changed, 28 insertions, 0 deletions
diff --git a/source3/include/proto.h b/source3/include/proto.h
index ba0f7adbde..581c423fa6 100644
--- a/source3/include/proto.h
+++ b/source3/include/proto.h
@@ -1333,6 +1333,7 @@ struct tevent_req *getaddrinfo_send(TALLOC_CTX *mem_ctx,
const char *service,
const struct addrinfo *hints);
int getaddrinfo_recv(struct tevent_req *req, struct addrinfo **res);
+int poll_one_fd(int fd, int events, int timeout, int *revents);
struct tevent_req *tstream_read_packet_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct tstream_context *stream,
diff --git a/source3/lib/util_sock.c b/source3/lib/util_sock.c
index 1de6d17a41..3dd84fe8d7 100644
--- a/source3/lib/util_sock.c
+++ b/source3/lib/util_sock.c
@@ -1766,3 +1766,30 @@ int getaddrinfo_recv(struct tevent_req *req, struct addrinfo **res)
}
return state->ret;
}
+
+int poll_one_fd(int fd, int events, int timeout, int *revents)
+{
+ struct pollfd *fds;
+ int ret;
+ int saved_errno;
+
+ fds = TALLOC_ZERO_ARRAY(talloc_tos(), struct pollfd, 2);
+ if (fds == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+ fds[0].fd = fd;
+ fds[0].events = events;
+
+ ret = sys_poll(fds, 1, timeout);
+
+ /*
+ * Assign whatever poll did, even in the ret<=0 case.
+ */
+ *revents = fds[0].revents;
+ saved_errno = errno;
+ TALLOC_FREE(fds);
+ errno = saved_errno;
+
+ return ret;
+}