The beginnings of "What would it look like if I used a DHT for peer discovery?"

.gitmodules

@@ -22,3 +22,6 @@
 [submodule "deps/openssl_src"]
 	path = deps/openssl_src
 	url = https://github.com/openssl/openssl.git
+[submodule "deps/dht"]
+	path = deps/dht
+	url = https://github.com/jech/dht.git

GNUmakefile

@@ -3,9 +3,9 @@
 MAKEFLAGS += --warn-undefined-variables
 MAKEFLAGS += --no-builtin-rules
 
-VERSION_CODE := 24
-VERSION_NUMBER := 0.0.21
-VERSION_NAME := What are we even doing here?
+VERSION_CODE := 25
+VERSION_NUMBER := 0.0.22-wip
+VERSION_NAME := This looks like a good place.
 
 SQLITE_URL := https://www.sqlite.org/2024/sqlite-amalgamation-3460000.zip
 LIBUV_URL := https://dist.libuv.org/dist/v1.48.0/libuv-v1.48.0.tar.gz
@@ -250,6 +250,7 @@ APP_OBJS := $(call get_objs,APP_SOURCES)
 $(APP_OBJS): CFLAGS += \
 	-Ideps/base64c/include \
 	-Ideps/crypt_blowfish \
+	-Ideps/dht \
 	-Ideps/libbacktrace \
 	-Ideps/libsodium \
 	-Ideps/libsodium/src/libsodium/include \
@@ -587,6 +588,9 @@ $(MINIUNZIP_OBJS): CFLAGS += \
 	-Ideps/zlib \
 	-Wno-maybe-uninitialized
 
+DHT_SOURCES := deps/dht/dht.c
+DHT_OBJS := $(call get_objs,DHT_SOURCES)
+
 LDFLAGS += \
 	-pthread \
 	-lm
@@ -633,6 +637,7 @@ all: $(BUILD_TYPES)
 ALL_APP_OBJS := \
 	$(APP_OBJS) \
 	$(BLOWFISH_OBJS) \
+	$(DHT_OBJS) \
 	$(LIBBACKTRACE_OBJS) \
 	$(MINIUNZIP_OBJS) \
 	$(PICOHTTPPARSER_OBJS) \

deps/dht

@@ -0,0 +1 @@
+Subproject commit 111230894416d400c9a1e038a033586bfeaafc93

deps/libbacktrace

@@ -1 +1 @@
-Subproject commit 7e2b7da3d6568d2e4e78658f22e701746a48d7e1
+Subproject commit 0dd27b95f9f2c11b4a89db5f185a888af912838e

src/dht.c

@@ -0,0 +1,34 @@
+#include <stddef.h>
+#include <stdio.h>
+
+#if defined(_WIN32)
+#define WIN32_LEAN_AND_MEAN
+#include <winsock2.h>
+#include <windows.h>
+#include <winsock.h>
+#include <ws2tcpip.h>
+#else
+#include <netinet/in.h>
+#include <sys/socket.h>
+#endif
+
+#include "dht.h"
+
+int dht_sendto(int sockfd, const void *buf, int len, int flags, const struct sockaddr *to, int tolen)
+{
+	return -1;
+}
+
+int dht_blacklisted(const struct sockaddr *sa, int salen)
+{
+	return 0;
+}
+
+void dht_hash(void *hash_return, int hash_size, const void *v1, int len1, const void *v2, int len2, const void *v3, int len3)
+{
+}
+
+int dht_random_bytes(void *buf, size_t size)
+{
+	return 0;
+}

src/version.h

@@ -1,2 +1,2 @@
-#define VERSION_NUMBER "0.0.21"
-#define VERSION_NAME "What are we even doing here?"
+#define VERSION_NUMBER "0.0.22-wip"
+#define VERSION_NAME "This looks like a good place."