Fix ``set proctitle'' by using setproctitle().

usr.sbin/ppp/bundle.c

@@ -39,6 +39,11 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#ifdef __OpenBSD__
+#include <util.h>
+#else
+#include <libutil.h>
+#endif
 #include <paths.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -603,7 +608,7 @@ bundle_UnlockTun(struct bundle *bundle)
 }
 
 struct bundle *
-bundle_Create(const char *prefix, int type, int unit, const char **argv)
+bundle_Create(const char *prefix, int type, int unit)
 {
   static struct bundle bundle;		/* there can be only one */
   int enoentcount, err, minunit, maxunit;
@@ -673,9 +678,6 @@ bundle_Create(const char *prefix, int type, int unit, const char **argv)
   }
 
   log_SetTun(bundle.unit);
-  bundle.argv = argv;
-  bundle.argv0 = argv[0];
-  bundle.argv1 = argv[1];
 
   ifname = strrchr(bundle.dev.Name, '/');
   if (ifname == NULL)
@@ -1097,7 +1099,6 @@ bundle_ShowStatus(struct cmdargs const *arg)
   int remaining;
 
   prompt_Printf(arg->prompt, "Phase %s\n", bundle_PhaseName(arg->bundle));
-  prompt_Printf(arg->prompt, " Title:         %s\n", arg->bundle->argv[0]);
   prompt_Printf(arg->prompt, " Device:        %s\n", arg->bundle->dev.Name);
   prompt_Printf(arg->prompt, " Interface:     %s @ %lubps",
                 arg->bundle->iface->name, arg->bundle->bandwidth);
@@ -1660,8 +1661,7 @@ bundle_setsid(struct bundle *bundle, int holdsession)
          */
         waitpid(pid, &status, 0);
         /* Tweak our process arguments.... */
-        bundle->argv[0] = "session owner";
-        bundle->argv[1] = NULL;
+        ID0setproctitle("session owner");
         /*
          * Hang around for a HUP.  This should happen as soon as the
          * ppp that we passed our ctty descriptor to closes it.

usr.sbin/ppp/bundle.h

@@ -63,9 +63,6 @@ struct iface;
 struct bundle {
   struct descriptor desc;     /* really all our datalinks */
   int unit;                   /* The device/interface unit number */
-  const char **argv;          /* From main() */
-  const char *argv0;          /* Original */
-  const char *argv1;          /* Original */
 
   struct {
     char Name[20];            /* The /dev/XXXX name */
@@ -142,7 +139,7 @@ struct bundle {
 #define descriptor2bundle(d) \
   ((d)->type == BUNDLE_DESCRIPTOR ? (struct bundle *)(d) : NULL)
 
-extern struct bundle *bundle_Create(const char *, int, int, const char **);
+extern struct bundle *bundle_Create(const char *, int, int);
 extern void bundle_Destroy(struct bundle *);
 extern const char *bundle_PhaseName(struct bundle *);
 #define bundle_Phase(b) ((b)->phase)

usr.sbin/ppp/command.c

@@ -33,6 +33,11 @@
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
+#ifdef __OpenBSD__
+#include <util.h>
+#else
+#include <libutil.h>
+#endif
 #include <paths.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -87,6 +92,7 @@
 #include "cbcp.h"
 #include "datalink.h"
 #include "iface.h"
+#include "id.h"
 
 /* ``set'' values */
 #define	VAR_AUTHKEY	0
@@ -2609,8 +2615,7 @@ SetProcTitle(struct cmdargs const *arg)
   int len, remaining, f, argc = arg->argc - arg->argn;
 
   if (arg->argc == arg->argn) {
-    arg->bundle->argv[0] = arg->bundle->argv0;
-    arg->bundle->argv[1] = arg->bundle->argv1;
+    ID0setproctitle(NULL);
     return 0;
   }
 
@@ -2636,8 +2641,7 @@ SetProcTitle(struct cmdargs const *arg)
   }
   *ptr = '\0';
 
-  arg->bundle->argv[0] = title;
-  arg->bundle->argv[1] = NULL;
+  ID0setproctitle(title);
 
   return 0;
 }

usr.sbin/ppp/id.c

@@ -269,6 +269,20 @@ ID0kill(pid_t pid, int sig)
   return result;
 }
 
+void
+ID0setproctitle(const char *title)
+{
+  ID0set0();
+  if (title == NULL) {
+    setproctitle(NULL);
+    log_Printf(LogID0, "setproctitle(NULL)\n");
+  } else {
+    setproctitle("%s", title);
+    log_Printf(LogID0, "setproctitle(\"%%s\", \"%s\")\n", title);
+  }
+  ID0setuser();
+}
+
 #if defined(__FreeBSD__) && !defined(NOKLDLOAD)
 int
 ID0kldload(const char *dev)

usr.sbin/ppp/id.h

@@ -45,6 +45,7 @@ extern void ID0logout(const char *, int);
 extern int ID0bind_un(int, const struct sockaddr_un *);
 extern int ID0connect_un(int, const struct sockaddr_un *);
 extern int ID0kill(pid_t, int);
+extern void ID0setproctitle(const char *);
 #if defined(__FreeBSD__) && !defined(NOKLDLOAD)
 extern int ID0kldload(const char *);
 #endif

usr.sbin/ppp/main.c

@@ -367,8 +367,7 @@ main(int argc, char **argv)
   if (!sw.quiet)
     prompt_Printf(prompt, "Working in %s mode\n", mode2Nam(sw.mode));
 
-  if ((bundle = bundle_Create(TUN_PREFIX, sw.mode, sw.unit,
-                              (const char **)argv)) == NULL)
+  if ((bundle = bundle_Create(TUN_PREFIX, sw.mode, sw.unit)) == NULL)
     return EX_START;
 
   /* NOTE:  We may now have changed argv[1] via a ``set proctitle'' */
@@ -398,12 +397,11 @@ main(int argc, char **argv)
 
   sig_signal(SIGUSR2, BringDownServer);
 
-  lastlabel = argc == 2 ? bundle->argv1 : argv[argc - 1];
+  lastlabel = argv[argc - 1];
   for (arg = label; arg < argc; arg++) {
     /* In case we use LABEL or ``set enddisc label'' */
     bundle_SetLabel(bundle, lastlabel);
-    system_Select(bundle, arg == 1 ? bundle->argv1 : argv[arg],
-                  CONFFILE, prompt, NULL);
+    system_Select(bundle, argv[arg], CONFFILE, prompt, NULL);
   }
 
   if (label < argc)