fix: TCP network issues

include/ctx.h

@@ -3,6 +3,7 @@
 #include "mptp.h"
 #include "pool.h"
 
+#include <signal.h>
 #include <stdbool.h>
 
 typedef struct lm_ctx {
@@ -95,9 +96,9 @@ bool lm_ctx_check(
     lm_ctx_t *ctx, lm_entry_t *entry, lm_ctx_check_callback_t callback, void *data); // checks a single package
 size_t lm_ctx_sync(lm_ctx_t *ctx, bool do_update, lm_ctx_sync_callback_t callback, void *data); // syncs all the pools
 void   lm_ctx_ping(lm_ctx_t *ctx, lm_ctx_ping_callback_t callback, void *data);                 // pings all the pools
-bool   lm_ctx_serve(
-      lm_ctx_t *ctx, char *addr, uint8_t threads, lm_ctx_serve_callback_t callback, void *data); // serves all the pools
-                                                                                                 //
+bool lm_ctx_serve(lm_ctx_t *ctx, char *addr, uint8_t threads, __sighandler_t handler, lm_ctx_serve_callback_t callback,
+    void *data); // serves all the pools
+
 /* ##############################
    ## temp directory fucntions ##
    ############################## */

include/mptp.h

@@ -107,7 +107,7 @@ typedef struct lm_mptp_header {
   uint16_t flags;
   uint8_t  host_size;
   uint8_t  data_size;
-} lm_mptp_header_t;
+} __attribute__((packed)) lm_mptp_header_t;
 
 typedef struct lm_mptp {
   lm_mptp_header_t header;
@@ -117,10 +117,10 @@ typedef struct lm_mptp {
 
 typedef bool (*lm_mptp_transfer_callback_t)(char *path, size_t current, size_t total, void *data);
 
-#define MPTP_FLAGS_VERSION(m) (((m)->header.flags & 0xFF00) >> 8)
-#define MPTP_FLAGS_TYPE(m)    (((m)->header.flags & 0x0080) >> 1)
-#define MPTP_FLAGS_CODE(m)    (((m)->header.flags & 0x0070) >> 4)
-#define MPTP_FLAGS_LAST(m)    (((m)->header.flags & 0x0008) >> 3)
+#define MPTP_FLAGS_VERSION(m) (((m)->header.flags >> 8) & 0xFF)
+#define MPTP_FLAGS_TYPE(m)    (((m)->header.flags >> 7) & 0x01)
+#define MPTP_FLAGS_CODE(m)    (((m)->header.flags >> 3) & 0x0F)
+#define MPTP_FLAGS_LAST(m)    (((m)->header.flags >> 2) & 0x01)
 
 #define MPTP_IS_REQUEST(m) (MPTP_FLAGS_TYPE(m) == 0)
 #define MPTP_IS_LAST(m)    (MPTP_FLAGS_LAST(m) == 1)
@@ -131,6 +131,7 @@ bool lm_mptp_set_host(lm_mptp_t *packet, char *host);
 bool lm_mptp_get_host(lm_mptp_t *packet, char *host);
 bool lm_mptp_get_data(lm_mptp_t *packet, char *data);
 int  lm_mptp_socket(char *addr, uint16_t port, struct sockaddr *saddr);
+bool lm_mptp_socket_opts(int sock);
 void lm_mptp_copy(lm_mptp_t *dst, lm_mptp_t *src);
 bool lm_mptp_verify(lm_mptp_t *packet);
 void lm_mptp_close(int sock);

include/util.h

@@ -8,6 +8,9 @@
 #include <stdio.h>
 
 #define _(x) gettext(x)
+#define BINARY(b)                                                                                                      \
+  (b & 128 ? '1' : '0'), (b & 64 ? '1' : '0'), (b & 32 ? '1' : '0'), (b & 16 ? '1' : '0'), (b & 8 ? '1' : '0'),        \
+      (b & 4 ? '1' : '0'), (b & 2 ? '1' : '0'), (b & 1 ? '1' : '0')
 
 bool contains(char *str, char s);
 bool eq(char *s1, char *s2);
@@ -33,6 +36,8 @@ bool package_version_valid(char *name);
 bool package_name_valid(char *name);
 
 void pdebug(const char *func, const char *fmt, ...);
+void pdebug_binary(char *data, size_t len);
+
 bool parse_host(char *addr, char *host, uint16_t *port);
 bool copy_blocks(struct archive *w, struct archive *r);
 bool extract_archive(char *dst, char *src);