utils/Install/packace/uac_sys.c

   1 /* ------------------------------------------------------------------------ */
   2 /*                                                                          */
   3 /*      Some basic things.                                                  */
   4 /*                                                                          */
   5 /* ------------------------------------------------------------------------ */
   6
   7 #include "os.h"
   8
   9 #include <signal.h>  // signal()
  10 #include <stdio.h>   // fprintf() fflush() getch() putc()
  11
  12 #if defined(DOS) || defined(WINNT) || defined(WIN16)
  13 #if !defined(__CYGWIN__)
  14  #include <conio.h>  // getch()
  15 #endif
  16 #endif
  17 #if defined(DOS)
  18  #include <dos.h>    // delay() sound()
  19 #endif
  20
  21 #include "globals.h"
  22 #include "uac_sys.h"
  23
  24
  25 void memset16(USHORT * dest, SHORT val, INT len)  // fills short-array with
  26 {                                                 // value
  27         while (len--)
  28                 *(dest++) = val;
  29 }
  30
  31 INT  cancel(void)               // checks whether to interrupt the program
  32 {
  33 #ifdef DOS
  34         while (kbhit())
  35         {
  36                 if (getch() == 27)
  37                         f_err = ERR_USER;
  38         }
  39 #endif
  40         return (f_err);
  41 }
  42
  43 INT  wrask(CHAR * s)            // prompt-routine
  44 {
  45         CHAR ch = 0;
  46
  47         fprintf(stderr, "\n %s (Yes,Always,No,Cancel) ", s);
  48         fflush(stderr);
  49         do
  50         {
  51                 /*ch = getch();
  52                  ch = upcase(ch);*/
  53         }
  54         while (ch != 'Y' && ch != 'A' && ch != 'N' && ch != 'C' && ch != 27);
  55         fprintf(stderr, "%s", ch == 'Y' ? "Yes" : (ch == 'A' ? "Always" : (ch == 'N' ? "No" : "Cancel")));
  56         fflush(stderr);
  57         return (ch == 'Y' ? 0 : (ch == 'A' ? 1 : (ch == 'N' ? 2 : 3)));
  58 }
  59
  60 void beep(void)                           // makes some noise
  61 {
  62 #ifdef DOS
  63         sound(800);
  64         delay(250);
  65         nosound();
  66 #endif
  67 #ifdef AMIGA
  68         putc(0x07, stderr);
  69 #endif
  70 }
  71
  72 void my_signalhandler(INT sig_number)     // sets f_err if ctrl+c or ctrl+brk
  73 {
  74         f_err = ERR_USER;
  75         pipeit("\nUser break\n");
  76 }
  77
  78 #ifdef DOS                                // handles hardware errors
  79 #ifdef __BORLANDC__
  80 INT harderrhandler(UINT deverr, UINT errc, UINT * devhdr)
  81 #else
  82 INT __far harderrhandler(UINT deverr, UINT errc, UINT * devhdr)
  83 #endif
  84 {
  85         f_criterr = 'A' + deverr & 0xff;
  86         f_err = ERR_OTHER;
  87         return (0x3);
  88 }
  89 #endif
  90
  91 void set_handler(void)                    // initializes handlers
  92 {
  93 #if defined(DOS) && !defined(__BORLANDC__)
  94         signal(SIGBREAK, my_signalhandler);    // set ctrl-break/-c handlers
  95 #endif
  96         signal(SIGINT, my_signalhandler);
  97 #if defined(DOS) && !defined(__CONSOLE__) // set hardware error handler
  98 #ifdef __BORLANDC__
  99         harderr(harderrhandler);
 100 #else
 101         _harderr(harderrhandler);
 102 #endif
 103 #endif
 104 }
 105