Restart fcntl()

diff --git a/contain.c b/contain.c
index 295d11d119df73cf05270e65bb151a7c77355ca9..2f26b2dd979f663c34af1252c52cc876c43a1c85 100644 (file)
--- a/contain.c
+++ b/contain.c
@@ -186,11 +186,11 @@ static bool containMakeFdsCOENaive(void)
        // (e.g. 32), which could be smaller than a maximum assigned number to file-descriptors
        // in this process. Just use some reasonably sane value (e.g. 1024)
        for (unsigned fd = (STDERR_FILENO + 1); fd < 1024; fd++) {
-               int flags = fcntl(fd, F_GETFD, 0);
+               int flags = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFD, 0));
                if (flags == -1) {
                        continue;
                }
-               fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
+               TEMP_FAILURE_RETRY(fcntl(fd, F_SETFD, flags | FD_CLOEXEC));
                LOG_D("Set fd '%d' flag to FD_CLOEXEC", fd);
        }
        return true;
@@ -229,12 +229,12 @@ static bool containMakeFdsCOEProc(void)
                        continue;
                }
                if (fd > STDERR_FILENO) {
-                       int flags = fcntl(fd, F_GETFD, 0);
+                       int flags = TEMP_FAILURE_RETRY(fcntl(fd, F_GETFD, 0));
                        if (flags == -1) {
                                PLOG_D("fcntl(fd, F_GETFD, 0)");
                                return false;
                        }
-                       fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
+                       TEMP_FAILURE_RETRY(fcntl(fd, F_SETFD, flags | FD_CLOEXEC));
                        LOG_D("Set fd '%d' flag to FD_CLOEXEC", fd);
                }
        }