[hackers] [scroll] explicit continue on EOF while read vom child, plus comment || Jan Klemkow

[git]

commit c4153df6202b944f947b018d6e461170a3a1168e
Author:     Jan Klemkow <j.klem...@wemelug.de>
AuthorDate: Tue Apr 14 21:49:51 2020 +0200
Commit:     Jan Klemkow <j.klem...@wemelug.de>
CommitDate: Tue Apr 14 21:50:20 2020 +0200

    explicit continue on EOF while read vom child, plus comment

diff --git a/scroll.c b/scroll.c
index ae7588f..b3946c7 100644
--- a/scroll.c
+++ b/scroll.c
@@ -508,6 +508,8 @@ main(int argc, char *argv[])
 
                        if (n == -1 && errno != EINTR)
                                die("read:");
+                       if (n == 0)     /* on exit of child we continue here */
+                               continue; /* let signal handler catch SIGCHLD */
 
                        if (write(STDOUT_FILENO, input, n) == -1)
                                die("write:");