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replace assert() calls with ASSERT()

OpenVPN's ASSERT() macro will do a bit more than the standard-libc
assert() call, namely print out which function and what expression
failed, before calling _exit(1). Also, it can not be accidentially
compiled-away (-DNDEBUG).

Use of ASSERT() is generally only advised in cases of "this must not
happen, but if it does, it's a programming or state corruption error
that we must know about". Use of assert() is lacking the extra debug
info, and as such, not advised at all.

Change-Id: I6480d6f741c2368a0d951004b91167d5943f8f9d
Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: mandree <matthias.andree@gmx.de>
Message-Id: <20250907211252.23924-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg32824.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
(cherry picked from commit 88f8edbf7545dc7913d031ea12c4bae5250bb766)

Gert Doering authored on 2025/09/08 06:12:46
Showing 2 changed files
... ...
@@ -100,7 +100,7 @@ nvlist_to_sockaddr(const nvlist_t *nvl, struct sockaddr_storage *ss)
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             in->sin_len = sizeof(*in);
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             data = nvlist_get_binary(nvl, "address", &len);
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-            assert(len == sizeof(in->sin_addr));
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+            ASSERT(len == sizeof(in->sin_addr));
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             memcpy(&in->sin_addr, data, sizeof(in->sin_addr));
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             in->sin_port = nvlist_get_number(nvl, "port");
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             break;
... ...
@@ -114,7 +114,7 @@ nvlist_to_sockaddr(const nvlist_t *nvl, struct sockaddr_storage *ss)
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             in6->sin6_len = sizeof(*in6);
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             data = nvlist_get_binary(nvl, "address", &len);
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-            assert(len == sizeof(in6->sin6_addr));
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+            ASSERT(len == sizeof(in6->sin6_addr));
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             memcpy(&in6->sin6_addr, data, sizeof(in6->sin6_addr));
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             in6->sin6_port = nvlist_get_number(nvl, "port");
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             break;
... ...
@@ -330,7 +330,7 @@ management_callback_send_cc_message(void *arg,
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 static unsigned int
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 management_callback_remote_entry_count(void *arg)
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 {
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-    assert(arg);
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+    ASSERT(arg);
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     struct context *c = (struct context *) arg;
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     struct connection_list *l = c->options.connection_list;
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... ...
@@ -340,8 +340,8 @@ management_callback_remote_entry_count(void *arg)
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 static bool
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 management_callback_remote_entry_get(void *arg, unsigned int index, char **remote)
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 {
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-    assert(arg);
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-    assert(remote);
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+    ASSERT(arg);
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+    ASSERT(remote);
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     struct context *c = (struct context *) arg;
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     struct connection_list *l = c->options.connection_list;