rocksock_strerror.c

   1 #include "rocksock.h"
   2 #include "rocksock_internal.h"
   3 #include <string.h>
   4 #ifndef NO_DNS_SUPPORT
   5 #include <netdb.h>
   6 #endif
   7 #ifdef USE_SSL
   8 #include "rocksock_ssl_internal.h"
   9 #endif
  10
  11 #ifdef ROCKSOCK_FILENAME
  12 static const char rs_errorMap[][3] = {
  13         "0" , "1" , "2" , "3" , "4" , "5" , "6" , "7",
  14         "8" , "9" , "10", "11", "12", "13", "14", "15",
  15         "16", "17", "18", "19", "20", "21", "22", "23",
  16         "24", "25", "26", "27"
  17 };
  18
  19 #else
  20
  21 static const char* rs_errorMap[] = {
  22         // RS_E_NO_ERROR,
  23         "no error",
  24         //RS_E_NULL,
  25         "NULL pointer passed",
  26         //RS_E_EXCEED_PROXY_LIMIT,
  27         "exceeding maximum number of proxies",
  28         //RS_E_NO_SSL,
  29         "can not establish SSL connection, since library was not compiled with USE_SSL define",
  30         // RS_E_NO_SOCKET
  31         "socket is not set up, maybe you should call connect first",
  32         // RS_E_HIT_TIMEOUT
  33         "timeout reached on operation",
  34         //RS_E_OUT_OF_BUFFER
  35         "supplied buffer is too small",
  36         // RS_E_SSL_GENERIC
  37         "generic SSL error, see STDERR",
  38         // RS_E_SOCKS4_NOAUTH
  39         "SOCKS4 authentication not implemented",
  40         // RS_E_SOCKS5_AUTH_EXCEEDSIZE
  41         "maximum length for SOCKS5 servername/password/username is 255",
  42         // RS_E_SOCKS4_NO_IP6
  43         "SOCKS4 is not compatible with IPv6",
  44         // RS_E_PROXY_UNEXPECTED_RESPONSE
  45         "the proxy sent an unexpected response",
  46         // RS_E_TARGETPROXY_CONNECT_FAILED
  47         "could not connect to target proxy",
  48         // RS_E_PROXY_AUTH_FAILED
  49         "proxy authentication failed or authd not enabled",
  50         //RS_E_HIT_READTIMEOUT = 14,
  51         "timeout reached on read operation",
  52         //RS_E_HIT_WRITETIMEOUT = 15,
  53         "timeout reached on write operation",
  54         //RS_E_HIT_CONNECTTIMEOUT = 16,
  55         "timeout reached on connect operation",
  56         //RS_E_PROXY_GENERAL_FAILURE = 17,
  57         "proxy general failure",
  58         //RS_E_TARGETPROXY_NET_UNREACHABLE = 18,
  59         "proxy-target: net unreachable",
  60         //RS_E_TARGETPROXY_HOST_UNREACHABLE = 19,
  61         "proxy-target: host unreachable",
  62         //RS_E_TARGETPROXY_CONN_REFUSED = 20,
  63         "proxy-target: connection refused",
  64         //RS_E_TARGETPROXY_TTL_EXPIRED = 21,
  65         "proxy-target: TTL expired",
  66         //RS_E_PROXY_COMMAND_NOT_SUPPORTED = 22,
  67         "proxy: command not supported",
  68         //RS_E_PROXY_ADDRESSTYPE_NOT_SUPPORTED = 23,
  69         "proxy: addresstype not supported",
  70         //RS_E_REMOTE_DISCONNECTED = 24,
  71         "remote socket closed connection",
  72         //RS_E_NO_PROXYSTORAGE = 25,
  73         "no proxy storage assigned",
  74         //RS_E_HOSTNAME_TOO_LONG = 26,
  75         "hostname exceeds 255 chars",
  76         //RS_E_INVALID_PROXY_URL = 27,
  77         "invalid proxy URL string"
  78 };
  79
  80 #endif
  81
  82 const char* rocksock_strerror(rocksock *sock) {
  83         int error = sock->lasterror.error;
  84         switch(sock->lasterror.errortype) {
  85 #ifndef NO_DNS_SUPPORT
  86                 case RS_ET_GAI:
  87                         return gai_strerror(error);
  88 #endif
  89                 case RS_ET_OWN:
  90                         if (error < RS_E_MAX_ERROR)
  91                                 return rs_errorMap[error];
  92                         return 0;
  93                 case RS_ET_SYS:
  94                         return strerror(error);
  95 #ifdef USE_SSL
  96                 case RS_ET_SSL: {
  97                         const char *tmp = rocksock_ssl_strerror(sock, error);
  98                         if(!tmp) return rs_errorMap[RS_E_SSL_GENERIC];
  99                         return tmp;
 100                 }
 101 #endif
 102                 default:
 103                         return 0;
 104         }
 105 }