From 8a17acdd63ae2b2726dc5a3272b23294f75a5883 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 5 Jan 2021 11:29:29 +0100
Subject: [PATCH 06/14] Remove one of the 2 pidfiles (pidfilename or
 linkpidfile)

---
 pppd/auth.c      |  2 +-
 pppd/main.c      | 25 ++++++++++++++++---------
 pppd/multilink.c |  2 +-
 pppd/pppd.h      |  3 ++-
 4 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/pppd/auth.c b/pppd/auth.c
index b1271c4..a1a831e 100644
--- a/pppd/auth.c
+++ b/pppd/auth.c
@@ -678,7 +678,7 @@ link_terminated(int unit)
      * we delete its pid file.
      */
     if (!doing_multilink && !demand)
-	remove_pidfiles();
+	remove_pidfile(pidfilename);
 
     /*
      * If we may want to bring the link up again, transfer
diff --git a/pppd/main.c b/pppd/main.c
index 6c0a173..08c5306 100644
--- a/pppd/main.c
+++ b/pppd/main.c
@@ -130,7 +130,7 @@ struct channel *the_channel;
 
 char *progname;			/* Name of this program */
 char hostname[MAXNAMELEN];	/* Our hostname */
-static char pidfilename[MAXPATHLEN];	/* name of pid file */
+char pidfilename[MAXPATHLEN];	/* name of pid file */
 static char linkpidfile[MAXPATHLEN];	/* name of linkname pid file */
 char ppp_devnam[MAXPATHLEN];	/* name of PPP tty (maybe ttypx) */
 uid_t uid;			/* Our real user-id */
@@ -241,6 +241,7 @@ static void chld(int);
 static void toggle_debug(int);
 static void open_ccp(int);
 static void bad_signal(int);
+static void remove_pidfilenames(void);
 static void holdoff_end(void *);
 static void forget_child(int pid, int status);
 static int reap_kids(void);
@@ -828,16 +829,22 @@ create_linkpidfile(int pid)
 }
 
 /*
- * remove_pidfile - remove our pid files
+ * remove_pidfile - remove one of the 2 pidfiles (pidfilename or linkpidfile)
  */
-void remove_pidfiles(void)
+void remove_pidfile(char* filename)
 {
-    if (pidfilename[0] != 0 && unlink(pidfilename) < 0 && errno != ENOENT)
-	warn("unable to delete pid file %s: %m", pidfilename);
-    pidfilename[0] = 0;
-    if (linkpidfile[0] != 0 && unlink(linkpidfile) < 0 && errno != ENOENT)
-	warn("unable to delete pid file %s: %m", linkpidfile);
-    linkpidfile[0] = 0;
+    if (filename[0] != 0 && unlink(filename) < 0 && errno != ENOENT)
+	warn("unable to delete pid file %s: %m", filename);
+    filename[0] = 0;
+}
+
+/*
+ * remove_pidfiles - remove our pid files
+ */
+static void remove_pidfiles()
+{
+    remove_pidfile(pidfilename);
+    remove_pidfile(linkpidfile);
 }
 
 /*
diff --git a/pppd/multilink.c b/pppd/multilink.c
index ddd848c..c9d93c3 100644
--- a/pppd/multilink.c
+++ b/pppd/multilink.c
@@ -267,7 +267,7 @@ void mp_bundle_terminated(void)
 	notice("Connection terminated.");
 	print_link_stats();
 	if (!demand) {
-		remove_pidfiles();
+		remove_pidfile(pidfilename);
 		script_unsetenv("IFNAME");
 	}
 
diff --git a/pppd/pppd.h b/pppd/pppd.h
index bdb8778..88a1209 100644
--- a/pppd/pppd.h
+++ b/pppd/pppd.h
@@ -219,6 +219,7 @@ extern int	hungup;		/* Physical layer has disconnected */
 extern int	ifunit;		/* Interface unit number */
 extern char	ifname[];	/* Interface name */
 extern char	hostname[];	/* Our hostname */
+extern char	pidfilename[];	/* name of pid file */
 extern u_char	outpacket_buf[]; /* Buffer for outgoing packets */
 extern int	devfd;		/* fd of underlying device */
 extern int	fd_ppp;		/* fd for talking PPP */
@@ -531,7 +532,7 @@ void notify(struct notifier *, int);
 int  ppp_send_config(int, int, u_int32_t, int, int);
 int  ppp_recv_config(int, int, u_int32_t, int, int);
 const char *protocol_name(int);
-void remove_pidfiles(void);
+void remove_pidfile(char *);
 void lock_db(void);
 void unlock_db(void);
 
-- 
2.30.0