Avoid the chdir entirely by prefixing _PATH_DEV to the tty name when

doing a stat.  This makes the -T and -u flags work in confunction with
a file argument.

diff --git a/usr.bin/who/who.c b/usr.bin/who/who.c
index 5fd8523..f6f9d3e 100644 (file)
--- a/usr.bin/who/who.c
+++ b/usr.bin/who/who.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: who.c,v 1.8 2000/03/21 21:54:51 ericj Exp $   */
+/*     $OpenBSD: who.c,v 1.9 2000/03/22 17:07:37 millert Exp $ */
 /*     $NetBSD: who.c,v 1.4 1994/12/07 04:28:49 jtc Exp $      */
 
 /*
@@ -47,11 +47,12 @@ static char copyright[] =
 #if 0
 static char sccsid[] = "@(#)who.c      8.1 (Berkeley) 6/6/93";
 #endif
-static char rcsid[] = "$OpenBSD: who.c,v 1.8 2000/03/21 21:54:51 ericj Exp $";
+static char rcsid[] = "$OpenBSD: who.c,v 1.9 2000/03/22 17:07:37 millert Exp $";
 #endif /* not lint */
 
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <paths.h>
 #include <pwd.h>
 #include <utmp.h>
 #include <stdio.h>
@@ -116,13 +117,6 @@ main(argc, argv)
                only_current_term = show_term = show_idle = show_labels = 0;
        }
 
-       if (show_term || show_idle) {
-               if (chdir("/dev")) {
-                       err(1, "cannot change directory to /dev");
-                       /* NOTREACHED */
-               }
-       }
-
        if (show_labels)
                output_labels();
 
@@ -225,7 +219,7 @@ output(up)
        struct utmp *up;
 {
        struct stat sb;
-       char line[sizeof (up->ut_line) + 1];
+       char line[sizeof(_PATH_DEV) + sizeof (up->ut_line)];
        char state = '?';
        static time_t now = 0;
        time_t idle = 0;
@@ -234,8 +228,8 @@ output(up)
                if (now == 0)
                        time(&now);
                
-               strncpy(line, up->ut_line, sizeof (up->ut_line));
-               line[sizeof (up->ut_line)] = '\0';
+               strcpy(line, _PATH_DEV);
+               strncat(line, up->ut_line, sizeof (up->ut_line));
 
                if (stat(line, &sb) == 0) {
                        state = (sb.st_mode & 020) ? '+' : '-';