every platform provides sys_random_seed() and SYS_RANDOM_SEED goes away

include/ntconf.h

@@ -35,8 +35,6 @@
 /*#define CHANGE_COLOR*/ /* allow palette changes */
 #define SELECTSAVED /* Provide menu of saved games to choose from at start */
  
-#define SYS_RANDOM_SEED  /* Use random seed derived from CNG */
-
 /*
  * -----------------------------------------------------------------
  *  The remaining code shouldn't need modification.

include/unixconf.h

@@ -423,7 +423,6 @@
 #  define DEV_RANDOM "/dev/random"
 # endif
 #endif
-#define SYS_RANDOM_SEED
 
 #endif /* UNIXCONF_H */
 #endif /* UNIX */

include/vmsconf.h

@@ -257,7 +257,6 @@ typedef __mode_t mode_t;
 #  define Rand() rand()
 # endif
 #endif
-#define SYS_RANDOM_SEED
 
 #ifndef __GNUC__
 #ifndef bcopy

src/hacklib.c

@@ -850,24 +850,6 @@ extern struct tm *FDECL(localtime, (time_t *));
 #endif
 STATIC_DCL struct tm *NDECL(getlt);
 
-#ifdef SYS_RANDOM_SEED
-extern unsigned long NDECL(sys_random_seed);
-#endif
-
-/* Returns a number suitable as seed for the random number generator. */
-static unsigned long
-get_random_seed()
-{
-    unsigned long seed = 0;
-#ifdef SYS_RANDOM_SEED
-    /* Platform-specific seed if one is provided */
-    seed = sys_random_seed();
-#else
-    seed = (unsigned long) getnow(); /* time((TIME_type) 0) */
-#endif
-    return seed;
-}
-
 /* Sets the seed for the random number generator */
 static void
 set_random(unsigned long seed)
@@ -898,6 +880,11 @@ set_random(unsigned long seed)
 #endif
 }
 
+/* An appropriate version of this must always be provided in
+   port-specific code somewhere. It returns a number suitable
+   as seed for the random number generator */
+extern unsigned long NDECL(sys_random_seed);
+
 /*
  * Initializes the random number generator.
  * Only call once.
@@ -905,19 +892,15 @@ set_random(unsigned long seed)
 void
 init_random()
 {
-    unsigned long seed = get_random_seed();
-    set_random(seed);
+    set_random(sys_random_seed());
 }
 
 /* Reshuffles the random number generator. */
 void
 reseed_random()
 {
-    /* only reseed if we are certain that the seed generation is unguessable
-     * by the players. */
-#if defined(SYS_RANDOM_SEED)
+    /* reseed */
     init_random();
-#endif
 }
 
 time_t

sys/msdos/msdos.c

@@ -519,4 +519,15 @@ unsigned setvalue;
     return (regs.x.dx);
 }
 
+unsigned long
+sys_random_seed(VOID_ARGS)
+{
+    unsigned long ourseed = 0UL;
+    time_t datetime = 0;
+
+    (void) time(&datetime);
+    ourseed = (unsigned long) datetime;
+    return ourseed;
+}
+
 #endif /* MSDOS */

sys/unix/unixmain.c

@@ -765,7 +765,6 @@ error:
 }
 #endif
 
-#ifdef SYS_RANDOM_SEED
 unsigned long
 sys_random_seed()
 {
@@ -790,6 +789,5 @@ sys_random_seed()
 #endif
     return seed;
 }
-#endif /* SYS_RANDOM_SEED */
 
 /*unixmain.c*/

sys/vms/vmsmain.c

@@ -465,7 +465,6 @@ wd_message()
         You("are in non-scoring explore/discovery mode.");
 }
 
-#ifdef SYS_RANDOM_SEED
 unsigned long
 sys_random_seed()
 {
@@ -481,6 +480,5 @@ sys_random_seed()
     }
     return seed;
 }
-#endif
 
 /*vmsmain.c*/

sys/winnt/Makefile.msc

@@ -73,8 +73,8 @@ DEBUGINFO = Y
 #    PDCurses header (.h) files and PDCURSES_C to the location
 #    of your PDCurses C files.
 #
-ADD_CURSES=Y
-PDCURSES_TOP=..\..\pdcurses
+#ADD_CURSES=Y
+#PDCURSES_TOP=..\..\pdcurses
 #
 #==============================================================================
 # This marks the end of the BUILD DECISIONS section.

sys/winnt/winnt.c

@@ -681,7 +681,8 @@ char *name;
     return;
 }
 
-#ifdef SYS_RANDOM_SEED
+#include <bcrypt.h>     /* Windows Crypto Next Gen (CNG) */
+
 #ifndef STATUS_SUCCESS
 #define STATUS_SUCCESS 0
 #endif
@@ -692,8 +693,6 @@ char *name;
 #define STATUS_UNSUCCESSFUL 0xC0000001
 #endif
 
-#include <bcrypt.h>     /* Windows Crypto Next Gen (CNG) */
-
 unsigned long
 sys_random_seed(VOID_ARGS)
 {
@@ -727,7 +726,6 @@ sys_random_seed(VOID_ARGS)
     }
     return ourseed;
 }
-#endif /* SYS_RANDOM_SEED */
 
 #endif /* WIN32 */
 

win/win32/vs2017/NetHack.vcxproj

@@ -37,7 +37,7 @@
       <PreprocessorDefinitions>TILES;WIN32CON;DLB;MSWIN_GRAPHICS;SAFEPROCS;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;winmm.lib;Winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;winmm.lib;Winmm.lib;bcrypt.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -76,6 +76,7 @@
     <ClCompile Include="$(SrcDir)hack.c" />
     <ClCompile Include="$(SrcDir)hacklib.c" />
     <ClCompile Include="$(SrcDir)invent.c" />
+    <ClCompile Include="$(SrcDir)isaac64.c" />
     <ClCompile Include="$(SrcDir)light.c" />
     <ClCompile Include="$(SrcDir)lock.c" />
     <ClCompile Include="$(SrcDir)mail.c" />
@@ -151,7 +152,6 @@
     <ClCompile Include="$(SrcDir)zap.c" />
     <ClCompile Include="$(SysShareDir)cppregex.cpp" />
     <ClCompile Include="$(SysShareDir)nhlan.c" />
-    <ClCompile Include="$(SysShareDir)random.c" />
     <ClCompile Include="$(SysWinntDir)ntsound.c" />
     <ClCompile Include="$(SysWinntDir)nttty.c" />
     <ClCompile Include="$(SysWinntDir)stubs.c">
@@ -194,6 +194,7 @@
     <ClInclude Include="$(IncDir)func_tab.h" />
     <ClInclude Include="$(IncDir)global.h" />
     <ClInclude Include="$(IncDir)hack.h" />
+    <ClInclude Include="$(IncDir)isaac64.h" />
     <ClInclude Include="$(IncDir)lev.h" />
     <ClInclude Include="$(IncDir)mextra.h" />
     <ClInclude Include="$(IncDir)mfndpos.h" />

win/win32/vs2017/NetHackW.vcxproj

@@ -28,7 +28,7 @@
     </ResourceCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
-      <AdditionalDependencies>comctl32.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>comctl32.lib;winmm.lib;bcrypt.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
     <Manifest>
       <AdditionalManifestFiles>$(WinWin32Dir)NethackW.exe.manifest;%(AdditionalManifestFiles)</AdditionalManifestFiles>
@@ -70,6 +70,7 @@
     <ClCompile Include="$(SrcDir)hack.c" />
     <ClCompile Include="$(SrcDir)hacklib.c" />
     <ClCompile Include="$(SrcDir)invent.c" />
+    <ClCompile Include="$(SrcDir)isaac64.c" />
     <ClCompile Include="$(SrcDir)light.c" />
     <ClCompile Include="$(SrcDir)lock.c" />
     <ClCompile Include="$(SrcDir)mail.c" />
@@ -146,7 +147,6 @@
     <ClCompile Include="$(SrcDir)zap.c" />
     <ClCompile Include="$(SysShareDir)cppregex.cpp" />
     <ClCompile Include="$(SysShareDir)nhlan.c" />
-    <ClCompile Include="$(SysShareDir)random.c" />
     <ClCompile Include="$(SysWinntDir)ntsound.c" />
     <ClCompile Include="$(SysWinntDir)stubs.c">
       <PreprocessorDefinitions>TTYSTUB;</PreprocessorDefinitions>