wall: check writing to a file descriptor was successful

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

diff --git a/term-utils/ttymsg.c b/term-utils/ttymsg.c
index 66b61b49159df5c1f5fdd69c92120353fcf912f7..d6108266d2ae4f4d072b5bd71e5501e1f72010ee 100644 (file)
--- a/term-utils/ttymsg.c
+++ b/term-utils/ttymsg.c
@@ -169,7 +169,8 @@ ttymsg(struct iovec *iov, size_t iovcnt, char *line, int tmout) {
                 */
                if (errno == ENODEV || errno == EIO)
                        break;
-               (void) close(fd);
+               if (close_fd(fd) != 0)
+                       warn(_("write failed: %s"), device);
                if (forked)
                        _exit(EXIT_FAILURE);
                if (strlen(strerror(errno)) > 1000)
@@ -184,7 +185,6 @@ ttymsg(struct iovec *iov, size_t iovcnt, char *line, int tmout) {
                return (errbuf);
        }
 
-       (void) close(fd);
        if (forked)
                _exit(EXIT_SUCCESS);
        return (NULL);