src/syren_tcp.h

   1 /*
   2   Syren -- a lightweight downloader for Linux/BSD/Win/MacOSX
   3   inspired by Axel Copyright 2001-2002 Wilmer van der Gaast
   4   version 0.0.6 (atomic alien)
   5   coded by Ketmar // Avalon Group
   6
   7   This program is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation; either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   This program is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License with
  18   the Debian GNU/Linux distribution in file /usr/doc/copyright/GPL;
  19   if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  20   Suite 330, Boston, MA  02111-1307  USA
  21 */
  22 /*
  23   Syren tcp utilities
  24  */
  25 #ifndef _SYREN_TCP_H
  26 #define _SYREN_TCP_H
  27
  28 #include "syren_os.h"
  29 #include "syren_common.h"
  30 #include "syren_msg.h"
  31
  32
  33 typedef struct {
  34 #ifdef SYOPT_ALLOW_HTTPS
  35   int usessl;
  36   void *sslinfo;
  37 #endif
  38   int fd;
  39   int errCode; /* 0: no error */
  40 } TSySocket;
  41
  42
  43 #define SY_TCP_DONT_ALLOWPARTIAL  0
  44 #define SY_TCP_ALLOWPARTIAL       1
  45
  46
  47 /* returns allocated string or NULL */
  48 char *SyTCPGetLastErrorMsg (TSySocket *fd);
  49
  50 /* put interface IP address to `ip' */
  51 TSyResult SyGetIFIP (char *ip, const char *iface);
  52
  53 /* initialize socket */
  54 TSyResult SyTCPInitSocket (TSySocket *fd);
  55 #ifdef SYOPT_ALLOW_HTTPS
  56 TSyResult SyTCPInitSSL (TSySocket *fd, int timeout);
  57 #endif
  58 TSyResult SyTCPCloseSocket (TSySocket *fd);
  59
  60 /* create a TCP connection; fd must not be initialized */
  61 TSyResult SyTCPConnect (TSySocket *fd, char *hostname, int port, const char *iface, int timeout, const TSyPrintStr *pfn);
  62 TSyResult SyTCPSend (TSySocket *fd, const void *buf, int bufSize);
  63 TSyResult SyTCPSendStr (TSySocket *fd, const char *str);
  64 /* <0: received (-res) bytes; read error */
  65 int SyTCPReceiveEx (TSySocket *fd, void *buf, int bufSize, int allowPartial);
  66 /* <0: received (-res) bytes; read error */
  67 int SyTCPReceive (TSySocket *fd, void *buf, int bufSize);
  68
  69 char *SyTCPReceiveStrEx (TSySocket *fd, int maxSize, char *dest);
  70 /* return NULL if string was too big */
  71 char *SyTCPReceiveStr (TSySocket *fd, int maxSize);
  72
  73 TSyResult SyTCPSendLine (const TSyPrintStr *pfn, int printLine, TSySocket *fd, const char *fmt, ...);
  74
  75 /* return NULL if string was too big or on error;
  76    tries to receive all headers
  77  */
  78 char *SyTCPReceiveHdrs (TSySocket *fd, int maxSize);
  79
  80
  81 #endif