rosapps/net/ncftp/sio/main.c

   1 #define _sio_main_c_
   2 #include "syshdrs.h"
   3
   4 int gLibSio_Uses_Me_To_Quiet_Variable_Unused_Warnings = 0;
   5
   6 #ifndef NO_SIGNALS
   7
   8 volatile Sjmp_buf gNetTimeoutJmp;
   9 volatile Sjmp_buf gPipeJmp;
  10
  11 void
  12 SIOHandler(int sigNum)
  13 {
  14         if (sigNum == SIGPIPE)
  15                 SLongjmp(gPipeJmp, 1);
  16         SLongjmp(gNetTimeoutJmp, 1);
  17 }       /* SIOHandler */
  18
  19
  20
  21
  22 void (*SSignal(int signum, void (*handler)(int)))(int)
  23 {
  24 #ifdef HAVE_SIGACTION
  25         struct sigaction sa, osa;
  26
  27         (void) sigemptyset(&sa.sa_mask);
  28         sa.sa_flags = 0;
  29         sa.sa_handler = handler;
  30         if (signum == SIGALRM) {
  31 #ifdef SA_INTERRUPT
  32                 sa.sa_flags |= SA_INTERRUPT;
  33 #endif
  34         } else {
  35 #ifdef SA_RESTART
  36                 sa.sa_flags |= SA_RESTART;
  37 #endif
  38         }
  39         if (sigaction(signum, &sa, &osa) < 0)
  40                 return (SIG_ERR);
  41         return (osa.sa_handler);
  42 #else
  43         return SSignal(signum, handler);
  44 #endif  /* HAVE_SIGACTION */
  45 }
  46
  47 #endif  /* NO_SIGNALS */
  48
  49 /* eof main.c */