diff -urp minicom-2.3.orig/src/main.c minicom-2.3/src/main.c
--- minicom-2.3.orig/src/main.c	2008-02-02 23:49:53.000000000 +0100
+++ minicom-2.3/src/main.c	2008-02-24 21:26:20.000000000 +0100
@@ -87,7 +87,7 @@ void leave(const char *s)
   }
   set_privs();
   if (lockfile[0])
-    unlink(lockfile);
+    ttyunlock(lockfile);
   if (P_CALLIN[0])
     fastsystem(P_CALLIN, NULL, NULL, NULL);
   if (real_uid)
@@ -161,10 +161,13 @@ void term_socket_close(void)
 int open_term(int doinit, int show_win_on_error)
 {
   struct stat stt;
+#ifdef NOTNOW
   char buf[128];
-  int fd, n = 0;
+  int fd;
   int pid;
   int mask;
+#endif
+  int n = 0;
 #ifdef HAVE_ERRNO_H
   int s_errno;
 #endif
@@ -172,6 +175,8 @@ int open_term(int doinit, int show_win_o
   /* Upgrade our status. */
   set_privs();
 
+#ifdef NOTNOW
+
   /* First see if the lock file directory is present. */
   if (P_LOCK[0] && stat(P_LOCK, &stt) == 0) {
 
@@ -243,6 +248,30 @@ int open_term(int doinit, int show_win_o
       close(fd);
   }
 
+#else
+  lockfile[0] = 0;
+  if (doinit >= 0) {
+       int rc = ttylock(dial_tty);
+       if (rc < 0) {
+               if (access(dial_tty, W_OK) == -1)
+                       fprintf(stderr, _("Device %s access failed: %s.\n"),
+                               dial_tty, strerror(errno));
+               else
+                       fprintf(stderr, _("Device %s lock failed: %s.\n"),
+                               dial_tty, strerror(-rc));
+       } else if (rc > 0) {
+               fprintf(stderr, _("Device %s is locked.\n"), dial_tty);
+       } else if (rc == 0) {
+               snprintf(lockfile, sizeof(lockfile), "%s", dial_tty);
+       }
+       if (rc) {
+               if (stdwin) mc_wclose(stdwin, 1);
+               drop_privs();
+               return(-1);
+       }
+  }
+#endif
+
   /* Run a special program to disable callin if needed. */
     if (doinit > 0 && P_CALLOUT[0]) {
       if (fastsystem(P_CALLOUT, NULL, NULL, NULL) < 0) {
@@ -250,7 +279,7 @@ int open_term(int doinit, int show_win_o
           mc_wclose(stdwin, 1);
         fprintf(stderr, _("Could not setup for dial out.\n"));
         if (lockfile[0])
-          unlink(lockfile);
+          ttyunlock(lockfile);
         drop_privs();
         return -1;
       }
@@ -310,12 +339,12 @@ int open_term(int doinit, int show_win_o
       fprintf(stderr, _("minicom: cannot open %s. Sorry.\n"), dial_tty);
 #endif
       if (lockfile[0])
-        unlink(lockfile);
+        ttyunlock(lockfile);
       drop_privs();
       return -1;
     }
     if (lockfile[0])
-      unlink(lockfile);
+      ttyunlock(lockfile);
     if (show_win_on_error)
       werror(_("Cannot open %s!"), dial_tty);
     drop_privs();
Only in minicom-2.3/src: main.c.orig
Only in minicom-2.3/src: main.c.rej
diff -urp minicom-2.3.orig/src/minicom.c minicom-2.3/src/minicom.c
--- minicom-2.3.orig/src/minicom.c	2008-02-24 21:21:30.000000000 +0100
+++ minicom-2.3/src/minicom.c	2008-02-24 21:26:07.000000000 +0100
@@ -1548,7 +1548,7 @@ dirty_goto:
   set_privs();
   keyboard(KUNINSTALL, 0);
   if (lockfile[0])
-    unlink(lockfile);
+    ttyunlock(lockfile);
   close(portfd);
   /* Please - if your system doesn't have uid_t and/or gid_t, define 'em
    * conditionally in "port.h".
Only in minicom-2.3/src: minicom.c.orig
diff -urp minicom-2.3.orig/src/minicom.h minicom-2.3/src/minicom.h
--- minicom-2.3.orig/src/minicom.h	2008-02-02 23:49:53.000000000 +0100
+++ minicom-2.3/src/minicom.h	2008-02-24 21:26:07.000000000 +0100
@@ -35,6 +35,8 @@
 
 #include <time.h>
 
+#include <baudboy.h>
+
 #ifdef USE_SOCKET
 #include <sys/socket.h>
 #include <sys/un.h>
@@ -84,7 +86,7 @@ EXTERN int tempst;	/* Status line is tem
 EXTERN int escape;	/* Escape code. */
 EXTERN int disable_online_time; /* disable online time display */
 
-EXTERN char lockfile[128]; /* UUCP lock file of terminal */
+EXTERN char lockfile[1024]; /* UUCP lock file of terminal */
 EXTERN char homedir[256];  /* Home directory of user */
 EXTERN char logfname[PARS_VAL_LEN]; /* Name of the logfile */
 EXTERN char username[16];  /* Who is using minicom? */
Only in minicom-2.3/src: minicom.h.orig
diff -urp minicom-2.3.orig/src/updown.c minicom-2.3/src/updown.c
--- minicom-2.3.orig/src/updown.c	2007-10-10 22:18:20.000000000 +0200
+++ minicom-2.3/src/updown.c	2008-02-24 21:26:07.000000000 +0100
@@ -384,8 +384,10 @@ void kermit(void)
 {
   int status;
   int pid, n;
+#ifdef NOTNOW
   char buf[81];
   int fd;
+#endif
 
   /* Clear screen, set keyboard modes etc. */
   mc_wleave();
@@ -399,7 +401,7 @@ void kermit(void)
       /* Remove lockfile */
       set_privs();
       if (lockfile[0])
-        unlink(lockfile);
+        ttyunlock(lockfile);
       setgid((gid_t)real_gid);
       setuid((uid_t)real_uid);
 
@@ -420,6 +422,7 @@ void kermit(void)
   /* Re-create lockfile */
   if (lockfile[0]) {
     set_privs();
+#ifdef NOTNOW
     n = umask(022);
     /* Create lockfile compatible with UUCP-1.2 */
     if ((fd = open(lockfile, O_WRONLY | O_CREAT | O_EXCL, 0666)) < 0) {
@@ -431,6 +434,9 @@ void kermit(void)
       close(fd);
     }
     umask(n);
+#else
+    ttylock(lockfile);
+#endif
     drop_privs();
   }
   m_flush(portfd);
Only in minicom-2.3/src: updown.c.orig