rocksock.h

   1 /*
   2  * author: rofl0r
   3  * License: LGPL 2.1+ with static linking exception
   4  */
   5
   6 #ifndef _ROCKSOCK_H_
   7 #define _ROCKSOCK_H_
   8
   9 #include <stddef.h>
  10 #include <netdb.h>
  11 #include <netinet/in.h>
  12 #include <sys/socket.h>
  13
  14 #define MAX_PROXIES 16
  15
  16 typedef enum {
  17         RS_PT_NONE = 0,
  18         RS_PT_SOCKS4,
  19         RS_PT_SOCKS5,
  20         RS_PT_HTTP
  21 } rs_proxyType;
  22
  23 typedef enum {
  24         RS_ET_NO_ERROR = 0,
  25         RS_ET_OWN,
  26         RS_ET_SYS,
  27         RS_ET_GAI,
  28         RS_ET_SSL,
  29 } rs_errorType;
  30
  31 typedef enum {
  32         RS_E_NO_ERROR = 0,
  33         RS_E_NULL = 1,
  34         RS_E_EXCEED_PROXY_LIMIT = 2,
  35         RS_E_NO_SSL = 3,
  36         RS_E_NO_SOCKET = 4,
  37         RS_E_HIT_TIMEOUT = 5,
  38         RS_E_OUT_OF_BUFFER = 6,
  39         RS_E_SSL_GENERIC = 7,
  40         RS_E_SOCKS4_NOAUTH = 8,
  41         RS_E_SOCKS5_AUTH_EXCEEDSIZE = 9,
  42         RS_E_SOCKS4_NO_IP6 = 10,
  43         RS_E_PROXY_UNEXPECTED_RESPONSE = 11,
  44         RS_E_TARGETPROXY_CONNECT_FAILED = 12,
  45         RS_E_PROXY_AUTH_FAILED = 13,
  46         RS_E_HIT_READTIMEOUT = 14,
  47         RS_E_HIT_WRITETIMEOUT = 15,
  48         RS_E_HIT_CONNECTTIMEOUT = 16,
  49         RS_E_PROXY_GENERAL_FAILURE = 17,
  50         RS_E_TARGETPROXY_NET_UNREACHABLE = 18,
  51         RS_E_TARGETPROXY_HOST_UNREACHABLE = 19,
  52         RS_E_TARGETPROXY_CONN_REFUSED = 20,
  53         RS_E_TARGETPROXY_TTL_EXPIRED = 21,
  54         RS_E_PROXY_COMMAND_NOT_SUPPORTED = 22,
  55         RS_E_PROXY_ADDRESSTYPE_NOT_SUPPORTED = 23,
  56         RS_E_MAX_ERROR = 24
  57 } rs_error;
  58
  59 typedef struct {
  60         char* errormsg;
  61         rs_errorType errortype;
  62         int error;
  63         int line;
  64         const char* file;
  65         int failedProxy;
  66 } rs_errorInfo;
  67
  68 typedef struct {
  69         char* host;
  70         unsigned short port;
  71 } rs_hostInfo;
  72
  73 typedef struct {
  74         rs_proxyType proxytype;
  75         rs_hostInfo hostinfo;
  76         char* username;
  77         char* password;
  78 } rs_proxy;
  79
  80 typedef struct {
  81         int socket;
  82         int connected;
  83         unsigned long timeout;
  84         rs_proxy proxies[MAX_PROXIES];
  85         ptrdiff_t lastproxy;
  86         rs_hostInfo hostinfo;
  87         rs_errorInfo lasterror;
  88         void *ssl;
  89         void *sslctx;
  90 } rocksock;
  91
  92 #ifdef __cplusplus
  93 extern "C" {
  94 #endif
  95
  96 #ifdef USE_SSL
  97 void rocksock_init_ssl(void);
  98 void rocksock_free_ssl(void);
  99 #endif
 100 int rocksock_init(rocksock* sock);
 101 int rocksock_set_timeout(rocksock* sock, unsigned long timeout_millisec);
 102 int rocksock_add_proxy(rocksock* sock, rs_proxyType proxytype, char* host, unsigned short port, char* username, char* password);
 103 int rocksock_connect(rocksock* sock, char* host, unsigned short port, int useSSL);
 104 int rocksock_send(rocksock* sock, char* buffer, size_t bufsize, size_t chunksize, size_t* byteswritten);
 105 int rocksock_recv(rocksock* sock, char* buffer, size_t bufsize, size_t chunksize, size_t* bytesread);
 106 int rocksock_readline(rocksock* sock, char* buffer, size_t bufsize, size_t* bytesread);
 107 int rocksock_disconnect(rocksock* sock);
 108 /* clears/free's/resets all internally used buffers. etc but doesn't free the rocksock itself, since it could be stack-alloced */
 109 int rocksock_clear(rocksock* sock);
 110 /* check if data is available for read. result will contain 1 if available, 0 if not available.
 111    return value 0 indicates success, everything else error. result may not be NULL */
 112 int rocksock_peek(rocksock* sock, int *result);
 113
 114 #ifdef ROCKSOCK_DYNAMIC
 115 /* returns a new heap alloced rocksock object which must be passed to rocksock_init later on */
 116 rocksock* rocksock_new(void);
 117 /* free *only* the rocksock object. typically you would call rocksock_clear first */
 118 void rocksock_free(rocksock* s);
 119 #endif
 120
 121 #ifdef __cplusplus
 122 }
 123 #endif
 124
 125 #endif
 126
 127 //RcB: DEP "rocksock.c"
 128 //RcB: DEP "rocksock_add_proxy.c"
 129 //RcB: DEP "rocksock_variables.c"
 130 //RcB: DEP "rocksock_dynamic.c"
 131 //RcB: DEP "rocksock_readline.c"
 132 //RcB: DEP "rocksock_peek.c"
 133