From: nhmall <mjnh@persona.ca>
Date: Sat, 2 Jan 2016 01:33:14 +0000 (-0500)
Subject: SYSCF_FILE corrections for windows
X-Git-Tag: NetHack-3.6.1_RC01~1084
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=61148f05bb156e2a7480a8f224a11c68bf120531;p=nethack

SYSCF_FILE corrections for windows

 Changes to be committed:
	modified:   src/files.c
	modified:   sys/share/pcmain.c

Related to #H4170, bz274

The current startup code seeks out the SYSCONFPREFIX using:
	envp = nh_getenv("COMMONPROGRAMFILES");
which is fine and usually translates to something like
"C:\\Program Files (x86)\\Common Files\\
NetHack then tacks on the NetHack subfolder to the path
"C:\\Program Files (x86)\\Common Files\\NetHack\\"

That should always be the definitive location.

However, in the event that there is no SYSCF_FILE actually
located at that system-wide spot (and ONLY in that event),
fall back to a secondary location of HACKDIR for locating
the SYSCF_FILE.

Also, there's some explicit tweaking added for the Microsoft
visual studio compiler debug execution to all a debug
session to correctly locate things. By default, on a
visual studio build, the executables are linked down in
subfolders of the build directory (Release, or Debug,
depending on visual studio build configuration options).
---

diff --git a/src/files.c b/src/files.c
index a524af027..059090b1f 100644
--- a/src/files.c
+++ b/src/files.c
@@ -1,4 +1,4 @@
-/* NetHack 3.6	files.c	$NHDT-Date: 1451001643 2015/12/25 00:00:43 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.197 $ */
+/* NetHack 3.6	files.c	$NHDT-Date: 1451697801 2016/01/02 01:23:21 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.199 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /* NetHack may be freely redistributed.  See license for details. */
 
@@ -3355,7 +3355,11 @@ assure_syscf_file()
      * VMS overrides open() usage with a macro which requires it.
      */
 #ifndef VMS
+# if defined(NOCWD_ASSUMPTIONS) && defined(WIN32)
+    fd = open(fqname(SYSCF_FILE, SYSCONFPREFIX, 0), O_RDONLY);
+# else
     fd = open(SYSCF_FILE, O_RDONLY);
+# endif
 #else
     fd = open(SYSCF_FILE, O_RDONLY, 0);
 #endif
diff --git a/sys/share/pcmain.c b/sys/share/pcmain.c
index b8cad7718..a42c49233 100644
--- a/sys/share/pcmain.c
+++ b/sys/share/pcmain.c
@@ -1,4 +1,4 @@
-/* NetHack 3.6	pcmain.c	$NHDT-Date: 1449893255 2015/12/12 04:07:35 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.67 $ */
+/* NetHack 3.6	pcmain.c	$NHDT-Date: 1451697809 2016/01/02 01:23:29 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.68 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /* NetHack may be freely redistributed.  See license for details. */
 
@@ -178,7 +178,33 @@ _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);*/
     if (dir == (char *) 0)
         dir = exepath(argv[0]);
 #endif
-    if (dir != (char *) 0) {
+#ifdef _MSC_VER
+    if (IsDebuggerPresent()) {
+        static char exepath[_MAX_PATH];
+        /* check if we're running under the debugger so we can get to the right folder anyway */
+        if (dir != (char *)0) {
+            char *top = (char *)0;
+
+            if (strlen(dir) < (_MAX_PATH - 1))
+                strcpy(exepath, dir);
+            top = strstr(exepath, "\\build\\.\\Debug");
+            if (!top) top = strstr(exepath, "\\build\\.\\Release");
+            if (top) {
+                *top = '\0';
+                if (strlen(exepath) < (_MAX_PATH - (strlen("\\binary\\") + 1))) {
+                    Strcat(exepath, "\\binary\\");
+                    if (strlen(exepath) < (PATHLEN - 1)) {
+                        dir = exepath;
+                    }
+                }
+            }
+        }
+    }
+#endif
+    if (dir != (char *)0) {
+        int fd;
+        boolean have_syscf = FALSE;
+
         (void) strncpy(hackdir, dir, PATHLEN - 1);
         hackdir[PATHLEN - 1] = '\0';
 #ifdef NOCWD_ASSUMPTIONS
@@ -206,6 +232,34 @@ _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);*/
                 }
             }
 
+            /* okay so we have the overriding and definitive locaton
+            for sysconf, but only in the event that there is not a 
+            sysconf file there (for whatever reason), check a secondary
+            location rather than abort. */
+
+            /* Is there a SYSCF_FILE there? */
+            fd = open(fqname(SYSCF_FILE, SYSCONFPREFIX, 0), O_RDONLY);
+            if (fd >= 0) {
+                /* readable */
+                close(fd);
+                have_syscf = TRUE;
+            }
+
+            if (!have_syscf) {
+                /* No SYSCF_FILE where there should be one, and
+                   without an installer, a user may not be able
+                   to place one there. So, let's try somewhere else... */
+                fqn_prefix[SYSCONFPREFIX] = fqn_prefix[0];
+
+                /* Is there a SYSCF_FILE there? */
+                fd = open(fqname(SYSCF_FILE, SYSCONFPREFIX, 0), O_RDONLY);
+                if (fd >= 0) {
+                    /* readable */
+                    close(fd);
+                    have_syscf = TRUE;
+                }
+            }
+
             /* user's home directory should default to this - unless
              * overridden */
             envp = nh_getenv("USERPROFILE");