| @@ -0,0 +1,56 @@
+--- yacc/main.c.security Mon Jan 10 15:26:24 2000
++++ yacc/main.c Fri Jan 5 10:21:29 2001
+@@ -109,6 +109,11 @@
+ short **derives;
+ char *nullable;
+
++#ifdef linux
++# define mktemp safe_mktemp
++extern void safe_mktemp(char *tmpl);
++#endif
++
+ static void create_file_names __P((void));
+ static void getargs __P((int, char **));
+ static void onintr __P((int));
+@@ -121,9 +126,18 @@
+ done(k)
+ int k;
+ {
+- if (action_file) { fclose(action_file); unlink(action_file_name); }
+- if (text_file) { fclose(text_file); unlink(text_file_name); }
+- if (union_file) { fclose(union_file); unlink(union_file_name); }
++ if (action_file)
++ fclose(action_file);
++ if (action_file_name[0])
++ unlink(action_file_name);
++ if (text_file)
++ fclose(text_file);
++ if (text_file_name[0])
++ unlink(text_file_name);
++ if (union_file)
++ fclose(union_file);
++ if (union_file_name[0])
++ unlink(union_file_name);
+ exit(k);
+ }
+
+@@ -482,6 +496,19 @@
+ code_file = output_file;
+ }
+
++#ifdef linux
++void
++safe_mktemp(char *fname)
++{
++ int fd;
++
++ if ((fd = mkstemp(fname)) < 0) {
++ perror("unable to create temp file");
++ exit(1);
++ }
++ close(fd);
++}
++#endif
+
+ int
+ main(argc, argv)
|
