fix to bug when adding delete ttys lines

SCCS-vsn: usr.bin/write/write.c 4.2

diff --git a/usr/src/usr.bin/write/write.c b/usr/src/usr.bin/write/write.c
index 47d88b6..1731de9 100644 (file)
--- a/usr/src/usr.bin/write/write.c
+++ b/usr/src/usr.bin/write/write.c
@@ -1,4 +1,4 @@
-static char *sccsid = "@(#)write.c     4.1 (Berkeley) %G%";
+static char *sccsid = "@(#)write.c     4.2 (Berkeley) %G%";

 /*
  * write to another user
  */
 /*
  * write to another user
  */


@@ -63,6 +63,8 @@ char *argv[];
                strcat(histty, histtya);
        }
        while (fread((char *)&ubuf, sizeof(ubuf), 1, uf) == 1) {
                strcat(histty, histtya);
        }
        while (fread((char *)&ubuf, sizeof(ubuf), 1, uf) == 1) {

+               if (ubuf.ut_name[0] == '\0')
+                       continue;

                if (strcmp(ubuf.ut_line, mytty)==0) {
                        for(i=0; i<NMAX; i++) {
                                c1 = ubuf.ut_name[i];
                if (strcmp(ubuf.ut_line, mytty)==0) {
                        for(i=0; i<NMAX; i++) {
                                c1 = ubuf.ut_name[i];