script: restore errno in signal handler

References: https://plus.google.com/+LennartPoetteringTheOneAndOnly/posts/gHSscCJkakd
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/term-utils/script.c b/term-utils/script.c
index a0cad8cbc20f94321884a092d15e1a29ff405e6b..1de0c3a81662b82f4836e58eb60e7a674409fd5f 100644 (file)
--- a/term-utils/script.c
+++ b/term-utils/script.c
@@ -327,12 +327,15 @@ void
 finish(int dummy __attribute__ ((__unused__))) {
        int status;
        pid_t pid;
+       int errsv = errno;
 
        while ((pid = wait3(&status, WNOHANG, 0)) > 0)
                if (pid == child) {
                        childstatus = status;
                        die = 1;
                }
+
+       errno = errsv;
 }
 
 void