setup mptp headers and types

include/all.h

@@ -1,4 +1,4 @@
-#include "types.h"
-#include "pool.h"
 #include "error.h"
 #include "libmp.h"
+#include "pool.h"
+#include "types.h"

include/error.h

@@ -2,24 +2,24 @@
 
 typedef enum lm_error {
   LM_ERR_NoError        = 0,
-  LM_ERR_URLBadChar = 1,
+  LM_ERR_URLBadChar     = 1,
   LM_ERR_URLBadProtocol = 2,
-  LM_ERR_URLTooLarge = 3,
-  LM_ERR_URLHostLarge = 4,
-  LM_ERR_URLPathLarge = 5,
-  LM_ERR_URLBadHost  = 6,
-  LM_ERR_URLBadPath  = 7,
+  LM_ERR_URLTooLarge    = 3,
+  LM_ERR_URLHostLarge   = 4,
+  LM_ERR_URLPathLarge   = 5,
+  LM_ERR_URLBadHost     = 6,
+  LM_ERR_URLBadPath     = 7,
   LM_ERR_URLPortUnknown = 8,
-  LM_ERR_URLBadPort = 9,
-  LM_ERR_PoolNoSupport = 10,
-  LM_ERR_URLEnd = 11,
+  LM_ERR_URLBadPort     = 9,
+  LM_ERR_PoolNoSupport  = 10,
+  LM_ERR_URLEnd         = 11,
 } lm_error_t;
 
 typedef struct lm_error_desc {
   lm_error_t code;
-  char *desc;
+  char      *desc;
 } lm_error_desc_t;
 
-void lm_error_set(lm_error_t code);
+void       lm_error_set(lm_error_t code);
 lm_error_t lm_error();
-char *lm_strerror();
+char      *lm_strerror();

include/mptp.h

@@ -0,0 +1,93 @@
+#pragma once
+#include <stdint.h>
+#include "types.h"
+
+/* 
+ 
+ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ #####################################
+ #               FLAGS               #
+ #####################################
+ #               SIZE                #
+ #                                   #
+ #####################################
+ #               DATA                #
+ #...................................#
+ 
+ [8 bits] FLAGS
+ ---------------------------------------------------------
+ 4 bits used for specifying the version
+ ---------------------------------------------------------
+ 1 bit used to specify if this is a request or response
+ 
+ 0- it's a request
+ 1- it's a response
+ ---------------------------------------------------------
+ 2 bits used for request/response codes
+ 
+ We have 4 types of different requests
+ 1- PING: checks if the server is avaliable
+ 2- INFO: gets information about the pool(s) the server is hosting 
+ 3- LIST: requests the package list for certain pool
+ 4- PULL: requests a certain package from a certain pool
+ 
+ And 4 types of responses
+ 1- PONG: response for the ping request
+ 2- COOL: everything is fine, here's the data you requested
+ 3- BRUH: cannot access to the data you requested, or version mismatch
+ 4- WHAT: bad request
+ ---------------------------------------------------------
+ 1 bit used to specify if this the last request/response
+ 
+ 0- no stay connected, im not done responsing/requesting yet
+ 1- yes, im done, disconnect
+ ---------------------------------------------------------
+
+ [16 bits] SIZE
+ ---------------------------------------------------------
+ All bits used for specifying the DATA size, in bytes
+ ---------------------------------------------------------
+
+ [...] DATA
+ ---------------------------------------------------------
+ Plaintext data used for that specific request/response,
+ max value for SIZE is 65535, so this section may have
+ 65535 bytes total
+ ---------------------------------------------------------
+
+*/
+
+#define MPTP_VERSION_SUPPORTED 0
+#define MPTP_VERSION_MAX 15 // 4 bits
+#define MPTP_CODE_MAX 4 // 2 bits
+
+typedef enum lm_mptp_request{
+  MPTP_C2S_PING = 0,
+  MPTP_C2S_INFO = 1,
+  MPTP_C2S_LIST = 2,
+  MPTP_C2S_PULL = 3,
+} lm_mptp_request_t;
+
+typedef enum lm_mptp_response{
+  MPTP_S2C_PONG = 0,
+  MPTP_S2C_COOL = 1,
+  MPTP_S2C_BRUH = 2,
+  MPTP_S2C_WHAT = 3,
+} lm_mptp_response_t;
+
+typedef struct lm_mptp {
+  uint8_t flags;
+  uint16_t size;
+  char *data;
+} lm_mptp_t;
+
+void lm_mptp_flags_set(lm_mptp_t *packet, uint8_t version, bool is_request, uint8_t code, bool is_last);
+#define MPTP_FLAGS_VERSION(m) (m->flags >> 4) & 15
+#define MPTP_FLAGS_IS_REQUEST(m) ((m->flags >> 3) & 1) == 0
+#define MPTP_FLAGS_TYPE(m) (m->flags >> 1) & 3
+#define MPTP_FLAGS_IS_LAST(m) (m->flags & 1) == 1
+
+int lm_mptp_connect(lm_url_t *url);
+bool lm_mptp_recv(int socket, lm_mptp_t *packet);
+bool lm_mptp_send(int socket, lm_mptp_t *packet);
+void lm_mptp_disconnect(int socket);

include/pool.h

@@ -1,6 +1,6 @@
 #pragma once
-#include <stdbool.h>
 #include "types.h"
+#include <stdbool.h>
 
 bool lm_ctx_pool_add(lm_ctx_t *ctx, char *name, char *url);
 bool lm_ctx_pool_del(lm_ctx_t *ctx, char *name);

include/types.h

@@ -4,17 +4,16 @@
 
 typedef struct lm_pool {
   struct lm_pool *next;
-  lm_url_t url;
-  bool available;
-  char *name;
+  lm_url_t        url;
+  bool            available;
+  char           *name;
 } lm_pool_t;
 
 typedef struct lm_ctx {
   lm_pool_t *pools; // pool list
 
-  char *root; // root path for package installtion
-  char *temp; // temp path
-  char *data; // package database path 
-  bool debug; // is debug output enabled?
+  char *root;  // root path for package installtion
+  char *temp;  // temp path
+  char *data;  // package database path
+  bool  debug; // is debug output enabled?
 } lm_ctx_t;
-

include/url.h

@@ -3,14 +3,14 @@
 #include <stdint.h>
 
 #define URL_PROTOCOL_MAX 20
-#define URL_PATH_MAX 2000
-#define URL_HOST_MAX 260
+#define URL_PATH_MAX     2000
+#define URL_HOST_MAX     260
 
 typedef struct lm_url {
   uint16_t port;
-  char protocol[URL_PROTOCOL_MAX+1];
-  char *host;
-  char *path;
+  char     protocol[URL_PROTOCOL_MAX + 1];
+  char    *host;
+  char    *path;
 } lm_url_t;
 
 bool lm_url_parse(lm_url_t *url, char *str);

include/util.h

@@ -1,7 +1,7 @@
 #pragma once
-#include <stdbool.h>
-#include <libintl.h>
 #include "types.h"
+#include <libintl.h>
+#include <stdbool.h>
 
 #define _(x) gettext(x)