From aebb7206f488656a7619f9358eae125ced979245 Mon Sep 17 00:00:00 2001
From: mueller_minki <admin@muellers-software.org>
Date: Sun, 4 Oct 2026 10:39:58 +0200
Subject: [PATCH] Fix build env issues with manual build

---
 Makefile          | 13 +++++++++++--
 backend/src/hub.c |  6 +++---
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index aa7401b..59a0a4e 100644
--- a/Makefile
+++ b/Makefile
@@ -20,20 +20,29 @@ OBJS_TEST  := $(addprefix $(BUILD)/,$(addsuffix .o,config log net proto json ser
 
 PYTHON     ?= python3
 
-.PHONY: all test test-c test-web install clean docker-test
+.PHONY: all test test-c test-web install clean docker-test check-deps
 
 all: $(BUILD)/patchbayd
 
 $(BUILD):
 	mkdir -p $(BUILD)
 
+# Fails early with a hint instead of a missing-header compiler error.
+check-deps:
+	@pkg-config --exists $(PKGS) || { \
+	  echo "missing build dependencies (pkg-config cannot find: $(PKGS))" >&2; \
+	  echo "  APT:  sudo apt-get install build-essential pkg-config libssh2-1-dev libsqlite3-dev" >&2; \
+	  echo "  XBPS: sudo xbps-install base-devel pkg-config libssh2-devel sqlite-devel" >&2; \
+	  echo "  or:   sudo ./install.sh --role client|target  (keeps an existing config)" >&2; \
+	  exit 1; }
+
 # Embed schema.sql as a C string so the daemon has no runtime file dependency.
 $(BUILD)/schema.h: schema.sql | $(BUILD)
 	{ printf 'static const char pb_schema_sql[] =\n'; \
 	  sed -e 's/\\/\\\\/g' -e 's/"/\\"/g' -e 's/^/"/' -e 's/$$/\\n"/' $<; \
 	  printf ';\n'; } > $@
 
-$(BUILD)/%.o: $(SRC)/%.c $(wildcard $(SRC)/*.h) $(BUILD)/schema.h | $(BUILD)
+$(BUILD)/%.o: $(SRC)/%.c $(wildcard $(SRC)/*.h) $(BUILD)/schema.h | $(BUILD) check-deps
 	$(CC) $(CFLAGS) $(PKG_CFLAGS) -I$(BUILD) -c -o $@ $<
 
 $(BUILD)/patchbayd: $(OBJS_ALL)
diff --git a/backend/src/hub.c b/backend/src/hub.c
index a19aa8e..2fe1647 100644
--- a/backend/src/hub.c
+++ b/backend/src/hub.c
@@ -45,7 +45,7 @@ struct route {
     int sink_id;
     int sink_type;
     int sink_client;
-    char bind[64];
+    char bind[256];
     char sink_iface[IFNAMSIZ];
     int port;
     int proto;
@@ -80,7 +80,7 @@ struct tsink {
     struct ev ev;
     struct tsink *next;
     int sink_id;
-    char bind[64];
+    char bind[256];
     char iface[IFNAMSIZ];
     unsigned ifindex;       // detects a recreated tun interface
     int port;
@@ -1144,7 +1144,7 @@ static void apply_target_sinks(void)
         int fd = net_listen(r->bind, r->port, r->proto, r->sink_iface);
         if (fd < 0) {
             char msg[128];
-            snprintf(msg, sizeof(msg), "bind %s:%d failed: %s", r->bind, r->port, strerror(errno));
+            snprintf(msg, sizeof(msg), "bind %.64s:%d failed: %s", r->bind, r->port, strerror(errno));
             if (strcmp(r->state_err, msg))
                 log_warn("sink %d: %s", r->sink_id, msg);
             snprintf(r->state_err, sizeof(r->state_err), "%s", msg);