removed locking code

diff --git a/chat/chat.c b/chat/chat.c
index 6c614d49dbb12922fd3388cea21feff6c702c2f9..a4db3a00d6681a3a01e3c31fe8966729afa20ac0 100644 (file)
--- a/chat/chat.c
+++ b/chat/chat.c
@@ -18,7 +18,7 @@
  *             (614)451-1883
  */
 
-static char rcsid[] = "$Id: chat.c,v 1.4 1994/05/30 00:30:37 paulus Exp $";
+static char rcsid[] = "$Id: chat.c,v 1.5 1995/01/11 03:14:45 paulus Exp $";
 
 #include <stdio.h>
 #include <fcntl.h>
@@ -35,14 +35,6 @@ static char rcsid[] = "$Id: chat.c,v 1.4 1994/05/30 00:30:37 paulus Exp $";
 #define TERMIOS
 #endif
 
-#ifdef sun
-# if defined(SUNOS) && SUNOS >= 41
-# ifndef HDB
-#  define      HDB
-# endif
-# endif
-#endif
-
 #ifdef TERMIO
 #include <termio.h>
 #endif
@@ -78,20 +70,6 @@ static int _O = 0;           /* Internal state */
 
 char *program_name;
 
-#ifndef LOCK_DIR
-# ifdef __NetBSD__
-# define       PIDSTRING
-# define       LOCK_DIR        "/var/spool/lock"
-# else
-#  ifdef HDB
-#   define     PIDSTRING
-#   define     LOCK_DIR        "/usr/spool/locks"
-#  else /* HDB */
-#   define     LOCK_DIR        "/usr/spool/uucp"
-#  endif /* HDB */
-# endif
-#endif /* LOCK_DIR */
-
 #define        MAX_ABORTS              50
 #define        DEFAULT_CHAT_TIMEOUT    45
 
@@ -130,7 +108,6 @@ void set_tty_parameters __P((void));
 void break_sequence __P((void));
 void terminate __P((int status));
 void do_file __P((char *chat_file));
-void lock __P((void));
 void delay __P((void));
 int  get_string __P((register char *string));
 int  put_string __P((register char *s));
@@ -141,8 +118,6 @@ void chat_send __P((register char *s));
 char *character __P((char c));
 void chat_expect __P((register char *s));
 char *clean __P((register char *s, int sending));
-void unlock __P((void));
-void lock __P((void));
 void break_sequence __P((void));
 void terminate __P((int status));
 void die __P((void));
@@ -165,7 +140,7 @@ char *s;
     }
 
 /*
- *     chat [ -v ] [ -t timeout ] [ -l lock-file ] [ -f chat-file ] \
+ *     chat [ -v ] [ -t timeout ] [ -f chat-file ] \
  *             [...[[expect[-say[-expect...]] say expect[-say[-expect]] ...]]]
  *
  *     Perform a UUCP-dialer-like chat script on stdin and stdout.
@@ -336,7 +311,7 @@ char *chat_file;
 void usage()
     {
     fprintf(stderr, "\
-Usage: %s [-v] [-l lock-file] [-t timeout] {-f chat-file || chat-script}\n",
+Usage: %s [-v] [-t timeout] {-f chat-file || chat-script}\n",
            program_name);
     exit(1);
     }
@@ -367,11 +342,10 @@ void logflush()
     }
 
 /*
- *     Unlock and terminate with an error.
+ *     Terminate with an error.
  */
 void die()
     {
-    unlock();
     terminate(1);
     }
 
@@ -383,7 +357,6 @@ void fatal (msg)
 const char *msg;
     {
     syslog(LOG_ERR, "%s", msg);
-    unlock();
     terminate(1);
     }
 
@@ -396,7 +369,6 @@ void sysfatal (msg)
 const char *msg;
     {
     syslog(LOG_ERR, "%s: %m", msg);
-    unlock();
     terminate(1);
     }
 
@@ -459,9 +431,6 @@ void init()
     signal(SIGTERM, sigterm);
     signal(SIGHUP, sighup);
 
-    if (lock_file)
-       lock();
-
     set_tty_parameters();
     signal(SIGALRM, sigalrm);
     alarm(0);
@@ -522,57 +491,11 @@ int status;
 #endif
        ) {
        syslog(LOG_ERR, "Can't restore terminal parameters: %m");
-       unlock();
        exit(1);
         }
     exit(status);
     }
 
-/*
- *     Create a lock file for the named lock device
- */
-void lock()
-    {
-    int fd, pid;
-# ifdef PIDSTRING
-    char hdb_lock_buffer[12];
-# endif
-
-    lock_file = strcat(strcat(strcpy(malloc(strlen(LOCK_DIR)
-                                      + 1 + strlen(lock_file) + 1),
-                               LOCK_DIR), "/"), lock_file);
-
-    if ((fd = open(lock_file, O_EXCL | O_CREAT | O_RDWR, 0644)) < 0)
-       {
-       char *s = lock_file;
-       lock_file = (char *)0;  /* Don't remove someone else's lock file! */
-       syslog(LOG_ERR, "Can't get lock file '%s': %m", s);
-       die();
-       }
-
-# ifdef PIDSTRING
-    sprintf(hdb_lock_buffer, "%10d\n", getpid());
-    write(fd, hdb_lock_buffer, 11);
-# else
-    pid = getpid();
-    write(fd, &pid, sizeof pid);
-# endif
-
-    close(fd);
-    }
-
-/*
- *     Remove our lockfile
- */
-void unlock()
-    {
-    if (lock_file)
-       {
-       unlink(lock_file);
-       lock_file = (char *)0;
-       }
-    }
-
 /*
  *     'Clean up' this string.
  */
@@ -778,7 +701,6 @@ register char *s;
                else
                    syslog(LOG_INFO, "Failed");
 
-               unlock();
                terminate(1);
                }
        }
@@ -863,7 +785,6 @@ register char *s;
            if ( ! put_string(s))
                {
                syslog(LOG_INFO, "Failed");
-               unlock();
                terminate(1);
                }
            }