[src/trunk]: src/lib/librmt - user (an alias to the login buffer should be NU...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e5b06d8ebfa8
branches:  trunk
changeset: 1003872:e5b06d8ebfa8
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Oct 03 17:56:17 2019 +0000

description:
- user (an alias to the login buffer should be NUL terminated so use strlcpy
- double the size of the resulting buffer so that it can fit a copy of the
  same sized buffer + more.

diffstat:

 lib/librmt/rmtlib.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r 219ffcd60628 -r e5b06d8ebfa8 lib/librmt/rmtlib.c
--- a/lib/librmt/rmtlib.c       Thu Oct 03 17:46:56 2019 +0000
+++ b/lib/librmt/rmtlib.c       Thu Oct 03 17:56:17 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rmtlib.c,v 1.26 2012/03/21 10:10:37 matt Exp $ */
+/*     $NetBSD: rmtlib.c,v 1.27 2019/10/03 17:56:17 christos Exp $     */
 
 /*
  *     rmt --- remote tape emulator subroutines
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: rmtlib.c,v 1.26 2012/03/21 10:10:37 matt Exp $");
+__RCSID("$NetBSD: rmtlib.c,v 1.27 2019/10/03 17:56:17 christos Exp $");
 
 #define RMTIOCTL       1
 /* #define USE_REXEC   1 */    /* rexec code courtesy of Dan Kegel, srs!dan */
@@ -249,7 +249,7 @@
 _rmt_open(const char *path, int oflag, int mode)
 {
        int i;
-       char buffer[BUFMAGIC];
+       char buffer[2 * BUFMAGIC];
        char host[MAXHOSTLEN];
        char device[BUFMAGIC];
        char login[BUFMAGIC];
@@ -292,7 +292,7 @@
        path++;
 
        if (*(path - 1) == '@') {
-               (void)strncpy(user, host, sizeof(login) - 1);
+               (void)strlcpy(user, host, sizeof(login));
                                /* saw user part of user@host */
                sys = host;                     /* start over */
                while (*path != ':') {