From d4546ccae0d4960641b261efe1d0e7a8b2b8a1fe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adrien=20Gallou=C3=ABt?= <adrien@gallouet.fr>
Date: Mon, 29 Jan 2018 15:47:39 +0000
Subject: [PATCH] Add mud_del_path()
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Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>
---
 mud.c | 32 ++++++++++++++++++++++++++++++++
 mud.h |  1 +
 2 files changed, 33 insertions(+)

diff --git a/mud.c b/mud.c
index e306ec4..cf6ec1b 100644
--- a/mud.c
+++ b/mud.c
@@ -77,6 +77,7 @@
 
 struct mud_path {
     struct {
+        unsigned skip : 1;
         unsigned backup : 1;
     } state;
     struct sockaddr_storage local_addr, addr;
@@ -522,6 +523,31 @@ mud_peer(struct mud *mud, const char *host, int port)
     return 0;
 }
 
+int
+mud_del_path(struct mud *mud, const char *name)
+{
+    if (!name) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    struct sockaddr_storage addr;
+
+    if (mud_addrinfo(&addr, name, 0))
+        return -1;
+
+    struct mud_path *path;
+
+    for (path = mud->path; path; path = path->next) {
+        if (mud_cmp_addr(&addr, mud->peer.set ? &path->local_addr : &path->addr))
+            continue;
+
+        path->state.skip = 1;
+    }
+
+    return 0;
+}
+
 int
 mud_add_path(struct mud *mud, const char *name)
 {
@@ -1197,6 +1223,9 @@ mud_update(struct mud *mud)
     struct mud_path *path = mud->path;
 
     for (; path; path = path->next) {
+        if (path->state.skip)
+            continue;
+
         if (update_keyx || mud_timeout(now, path->recv_time, mud->send_timeout + MUD_ONE_SEC))
             path->conf.remote = 0;
 
@@ -1238,6 +1267,9 @@ mud_send(struct mud *mud, const void *data, size_t size, int tc)
     int64_t limit_min = INT64_MAX;
 
     for (path = mud->path; path; path = path->next) {
+        if (path->state.skip)
+            continue;
+
         if (path->state.backup) {
             path_backup = path;
             continue;
diff --git a/mud.h b/mud.h
index d4e3333..1e8caae 100644
--- a/mud.h
+++ b/mud.h
@@ -24,6 +24,7 @@ int mud_set_aes                (struct mud *);
 int mud_peer (struct mud *, const char *, int);
 
 int mud_add_path (struct mud *, const char *);
+int mud_del_path (struct mud *, const char *);
 
 int mud_recv (struct mud *, void *, size_t);
 int mud_send (struct mud *, const void *, size_t, int);