allow superuser to do anything

SCCS-vsn: usr.bin/write/write.c 4.10

diff --git a/usr/src/usr.bin/write/write.c b/usr/src/usr.bin/write/write.c
index 87ee682..9a68fa8 100644 (file)
--- a/usr/src/usr.bin/write/write.c
+++ b/usr/src/usr.bin/write/write.c
@@ -1,5 +1,5 @@
 #ifndef        lint
 #ifndef        lint

-static char *sccsid = "@(#)write.c     4.9 %G%";
+static char *sccsid = "@(#)write.c     4.10 %G%";

 #endif
 /*
  * write to another user
 #endif
 /*
  * write to another user


@@ -42,6 +42,7 @@ main(argc, argv)
        register FILE *uf;
        int c1, c2;
        long clock = time(0);
        register FILE *uf;
        int c1, c2;
        long clock = time(0);

+       int suser = getuid() == 0;

        struct tm *localtime();
        struct tm *localclock = localtime( &clock );
 
        struct tm *localtime();
        struct tm *localclock = localtime( &clock );
 


@@ -65,7 +66,7 @@ main(argc, argv)
                perror("write: Can't stat your tty");
                exit(1);
        }
                perror("write: Can't stat your tty");
                exit(1);
        }

-       if ((stbuf.st_mode&02) == 0) {
+       if (!suser && (stbuf.st_mode&02) == 0) {

                fprintf(stderr,
                        "write: You have write permission turned off\n");
                exit(1);
                fprintf(stderr,
                        "write: You have write permission turned off\n");
                exit(1);


@@ -137,7 +138,7 @@ cont:
        alarm(0);
        if (fstat(fileno(tf), &stbuf) < 0)
                goto perm;
        alarm(0);
        if (fstat(fileno(tf), &stbuf) < 0)
                goto perm;

-       if ((stbuf.st_mode&02) == 0)
+       if (!suser && (stbuf.st_mode&02) == 0)

                goto perm;
        sigs(eof);
        { char hostname[32];
                goto perm;
        sigs(eof);
        { char hostname[32];