[patch] Add error handling in usr.bin/time/time.c

[Nan Xiao]

Hi tech@,

FYI, thanks!

Index: time.c
===================================================================
RCS file: /cvs/src/usr.bin/time/time.c,v
retrieving revision 1.25
diff -u -p -r1.25 time.c
--- time.c      21 Aug 2017 13:38:02 -0000      1.25
+++ time.c      20 Apr 2018 09:21:59 -0000
@@ -76,7 +76,8 @@ main(int argc, char *argv[])
        if (argc < 1)
                usage();

-       clock_gettime(CLOCK_MONOTONIC, &before);
+       if (clock_gettime(CLOCK_MONOTONIC, &before))
+               err(1, "clock_gettime");
        switch(pid = vfork()) {
        case -1:                        /* error */
                warn("fork");
@@ -92,7 +93,8 @@ main(int argc, char *argv[])
        signal(SIGQUIT, SIG_IGN);
        while (wait3(&status, 0, &ru) != pid)
                ;
-       clock_gettime(CLOCK_MONOTONIC, &after);
+       if (clock_gettime(CLOCK_MONOTONIC, &after))
+               err(1, "clock_gettime");
        if (WIFSIGNALED(status))
                exitonsig = WTERMSIG(status);
        if (!WIFEXITED(status))

-- 
Best Regards
Nan Xiao