pager: also redirect stderr

It's really confusing if stdout goes to the pager, but stderr is written
directly to the screen. Hence, make sure both stdout and stderr are
passed to the pager when doing autopaging.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/shared/pager.c b/src/shared/pager.c
index a5454e377d..85f8fa5b39 100644
--- a/src/shared/pager.c
+++ b/src/shared/pager.c
@@ -129,6 +129,8 @@ int pager_open(bool jump_to_end) {
         /* Return in the parent */
         if (dup2(fd[1], STDOUT_FILENO) < 0)
                 return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
+        if (dup2(fd[1], STDERR_FILENO) < 0)
+                return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
 
         safe_close_pair(fd);
         return 1;
@@ -141,6 +143,11 @@ void pager_close(void) {
 
         /* Inform pager that we are done */
         fclose(stdout);
+        stdout = NULL;
+
+        fclose(stderr);
+        stderr = NULL;
+
         kill(pager_pid, SIGCONT);
         (void) wait_for_terminate(pager_pid, NULL);
         pager_pid = 0;