De-couple ppp from libalias. If libalias isn't there, the

alias commands simply won't work.  Only root may specify the
location of the alias lib (otherwise, it's hard-coded).

Make logprintf silently fail if LogOpen hasn't been called.

Suggested by:	eivind

1 files changed, 18 insertions, 0 deletions

diff --git a/usr.sbin/ppp/loadalias.h b/usr.sbin/ppp/loadalias.h
new file mode 100644
index 0000000..601803d
--- /dev/null
+++ b/usr.sbin/ppp/loadalias.h
@@ -0,0 +1,18 @@
+struct aliasHandlers {
+    char *(*GetNextFragmentPtr)(char *);
+    void (*InitPacketAlias)();
+    int (*PacketAliasIn)(char *,int);
+    int (*PacketAliasOut)(char *,int);
+    struct alias_link *(*PacketAliasRedirectAddr)
+        (struct in_addr, struct in_addr);
+    struct alias_link *(*PacketAliasRedirectPort)
+        (struct in_addr, u_short, struct in_addr, u_short,
+         struct in_addr, u_short, u_char);
+    int (*SaveFragmentPtr)(char *);
+    void (*SetPacketAliasAddress)(struct in_addr);
+    unsigned (*SetPacketAliasMode)(unsigned, unsigned);
+    void (*FragmentAliasIn)(char *, char *);
+};
+
+extern int loadAliasHandlers(struct aliasHandlers *);
+extern void unloadAliasHandlers();