setgid to group "write" so that terminals need not be world writable

[unix-history] / usr / src / usr.bin / mesg / mesg.c

diff --git a/usr/src/usr.bin/mesg/mesg.c b/usr/src/usr.bin/mesg/mesg.c
index 9b37f09..266937a 100644 (file)
--- a/usr/src/usr.bin/mesg/mesg.c
+++ b/usr/src/usr.bin/mesg/mesg.c
@@ -1,4 +1,4 @@
-static char *sccsid = "@(#)mesg.c      4.2 (Berkeley) %G%";
+static char *sccsid = "@(#)mesg.c      4.3 (Berkeley) %G%";

 /*
  * mesg -- set current tty to accept or
  *     forbid write permission.
 /*
  * mesg -- set current tty to accept or
  *     forbid write permission.


@@ -26,17 +26,17 @@ char *argv[];
                exit(13);
        if(stat(tty, &sbuf) < 0) error("cannot stat");
        if(argc < 2) {
                exit(13);
        if(stat(tty, &sbuf) < 0) error("cannot stat");
        if(argc < 2) {

-               if(sbuf.st_mode & 02)
+               if(sbuf.st_mode & 020)

                        fprintf(stderr,"is y\n");
                else {  r=1;
                        fprintf(stderr,"is n\n");
                }
        } else  switch(*argv[1]) {
                case 'y':
                        fprintf(stderr,"is y\n");
                else {  r=1;
                        fprintf(stderr,"is n\n");
                }
        } else  switch(*argv[1]) {
                case 'y':

-                       newmode(sbuf.st_mode|022); break;
+                       newmode(sbuf.st_mode|020); break;

 
                case 'n':
 
                case 'n':

-                       newmode(sbuf.st_mode&~022); r=1; break;
+                       newmode(sbuf.st_mode&~020); r=1; break;

 
                default:
                        error("usage: mesg [y] [n]");
 
                default:
                        error("usage: mesg [y] [n]");