xio-streams.c

   1 /* source: xio-streams.c */
   2 /* Copyright Gerhard Rieger and contributors (see file CHANGES) */
   3 /* Published under the GNU General Public License V.2, see file COPYING */
   4
   5 /* this file contains definitions and functions for handling POSIX STREAMS */
   6
   7 /* with this source file a new experimental approach is being introduced:
   8    normally when adding a new option at least four existing files have to be
   9    adapted; this is similar for new address types.
  10
  11    in the future i would like to have a more automatic assembling of socat from
  12    topic oriented source files. this should make integration and control of
  13    contributions more easy.
  14
  15    all code of a new topic - address and option definitions, open code, option
  16    handing code, ev.parser code, etc. should go into one source file. the
  17    selection of the desired code parts during the compilation is done by
  18    setting cpp defines.
  19
  20    in the same was all public declarations should go in one header (.h) file.
  21 */
  22
  23 /* do not compile this file directly but include it from other .c files. with
  24    CPP defines you select one part you want to really get included:
  25
  26    ENABLE_OPTIONS: activate the definition of the address option records
  27    ENABLE_APPLYOPTS: C code that applies the address option passed in opt
  28 */
  29
  30 #ifdef ENABLE_OPTIONS
  31
  32 #ifdef I_POP
  33 const struct optdesc opt_streams_i_pop_all = { "streams-i-pop-all", "pop-all", OPT_STREAMS_I_POP_ALL, GROUP_FD, PH_FD, TYPE_BOOL,   OFUNC_STREAMS_I_POP_ALL, 0, 0 };
  34 #endif
  35 #ifdef I_PUSH
  36 const struct optdesc opt_streams_i_push    = { "streams-i-push",    "push",    OPT_STREAMS_I_PUSH,    GROUP_FD, PH_FD, TYPE_STRING, OFUNC_STREAMS_I_PUSH,    0, 0 };
  37 #endif
  38
  39 #elif defined(ENABLE_APPLYOPT)
  40
  41 #if 0
  42 void dummy(void) {
  43    if (0) { { ;
  44 #endif
  45 #ifdef I_POP
  46       } else if (opt->desc->func == OFUNC_STREAMS_I_POP_ALL) {
  47          while (Ioctl(fd, I_POP, 0) >= 0) {
  48             Warn2("ioctl(%d, I_POP, 0): %s", fd, strerror(errno));
  49          }
  50 #endif
  51 #ifdef I_PUSH
  52       } else if (opt->desc->func == OFUNC_STREAMS_I_PUSH) {
  53          if (Ioctl(fd, I_PUSH, opt->value.u_string) < 0) {
  54             Warn3("ioctl(%d, I_PUSH, \"%s\"): %s",
  55                   fd, opt->value.u_string, strerror(errno));
  56             opt->desc = ODESC_ERROR; ++opt; continue;
  57          }
  58 #endif
  59 #if 0
  60 } } }
  61 #endif
  62
  63 #else /* !defined(ENABLE_APPLYOPT) */
  64
  65 #include "xiosysincludes.h"
  66 #if WITH_STREAMS        /* make this address configure dependend */
  67 #include "xioopen.h"
  68
  69 #include "xio-fd.h"
  70 #include "xio-socket.h" /* _xioopen_connect() */
  71 #include "xio-listen.h"
  72 #include "xio-ipapp.h"
  73 #include "xio-openssl.h"
  74
  75
  76
  77 #endif /* WITH_STREAMS */
  78
  79 #endif /* !defined(ENABLE_OPTIONS) */