1 files changed, 71 insertions, 0 deletions
diff --git a/games/xnethack/files/patch-util-makedefs.c b/games/xnethack/files/patch-util-makedefs.c
new file mode 100644
index 000000000000..13d38f3bfba0
--- /dev/null
+++ b/games/xnethack/files/patch-util-makedefs.c
@@ -0,0 +1,71 @@
+--- util/makedefs.c.orig	2021-03-22 22:28:14 UTC
++++ util/makedefs.c
+@@ -116,6 +116,7 @@ static struct version_info version;
+ #define MAXFNAMELEN 600
+ 
+ static char filename[MAXFNAMELEN];
++static char tempfilename[MAXFNAMELEN];
+ 
+ #ifdef FILE_PREFIX
+ /* if defined, a first argument not starting with - is
+@@ -229,6 +230,12 @@ main(int argc, char *argv[])
+         return 1;
+     }
+ 
++    if (snprintf(tempfilename, sizeof(tempfilename), "%s.%d", "grep.tmp", getpid()) >= sizeof(tempfilename)) {
++        Fprintf(stderr, "Cannot create temporary filename.");
++        (void) fflush(stderr);
++        return 1;
++    }
++
+ #ifdef FILE_PREFIX
+     if (argc >= 2 && argv[1][0] != '-') {
+         file_prefix = argv[1];
+@@ -964,12 +971,12 @@ do_rnd_access_file(const char* fname, const char* defl
+        more likely to be picked than normal but it's nothing to worry about */
+     (void) fputs(xcrypt(deflt_content), ofp);
+ 
+-    tfp = getfp(DATA_TEMPLATE, "grep.tmp", WRTMODE, FLG_TEMPFILE);
++    tfp = getfp(DATA_TEMPLATE, tempfilename, WRTMODE, FLG_TEMPFILE);
+     grep0(ifp, tfp, FLG_TEMPFILE);
+ #ifndef HAS_NO_MKSTEMP
+     ifp = tfp;
+ #else
+-    ifp = getfp(DATA_TEMPLATE, "grep.tmp", RDTMODE, 0);
++    ifp = getfp(DATA_TEMPLATE, tempfilename, RDTMODE, 0);
+ #endif
+     while ((line = fgetline(ifp)) != 0) {
+         if (line[0] != '#' && line[0] != '\n')
+@@ -980,7 +987,7 @@ do_rnd_access_file(const char* fname, const char* defl
+     Fclose(ofp);
+ 
+ #ifdef HAS_NO_MKSTEMP
+-    delete_file(DATA_TEMPLATE, "grep.tmp");
++    delete_file(DATA_TEMPLATE, templfilename);
+ #endif
+     return;
+ }
+@@ -1758,12 +1765,12 @@ do_dungeon(void)
+     }
+     Fprintf(ofp, "%s", Dont_Edit_Data);
+ 
+-    tfp = getfp(DATA_TEMPLATE, "grep.tmp", WRTMODE, FLG_TEMPFILE);
++    tfp = getfp(DATA_TEMPLATE, tempfilename, WRTMODE, FLG_TEMPFILE);
+     grep0(ifp, tfp, FLG_TEMPFILE);
+ #ifndef HAS_NO_MKSTEMP
+     ifp = tfp;
+ #else
+-    ifp = getfp(DATA_TEMPLATE, "grep.tmp", RDTMODE, 0);
++    ifp = getfp(DATA_TEMPLATE, tempfilename, RDTMODE, 0);
+ #endif
+     while ((line = fgetline(ifp)) != 0) {
+         SpinCursor(3);
+@@ -1779,7 +1786,7 @@ do_dungeon(void)
+     Fclose(ofp);
+ 
+ #ifdef HAS_NO_MKSTEMP
+-    delete_file(DATA_TEMPLATE, "grep.tmp");
++    delete_file(DATA_TEMPLATE, tempfilename);
+ #endif
+     return;
+ }