745   char *dirend;  in file_exists_p()  local
755   dirend = strrchr (name, ']');  in file_exists_p()
756   if (dirend == 0)  in file_exists_p()
757     dirend = strrchr (name, ':');  in file_exists_p()
758   if (dirend == (char *)0)  in file_exists_p()
761   dirend = strrchr (name, '/');  in file_exists_p()
766     if (!dirend || bslash > dirend)  in file_exists_p()
767       dirend = bslash;  in file_exists_p()
769     if (!dirend && name[0] && name[1] == ':')  in file_exists_p()
770       dirend = name + 1;  in file_exists_p()
773   if (dirend == 0)  in file_exists_p()
781   slash = dirend;  in file_exists_p()
782   if (dirend == name)  in file_exists_p()
788       if (dirend < name + 3 && name[1] == ':' &&  in file_exists_p()
789 	  (*dirend == '/' || *dirend == '\\' || *dirend == ':'))  in file_exists_p()
790 	dirend++;  in file_exists_p()
792       dirname = (char *) alloca (dirend - name + 1);  in file_exists_p()
793       bcopy (name, dirname, dirend - name);  in file_exists_p()
794       dirname[dirend - name] = '\0';  in file_exists_p()
806   char *dirend;  in file_impossible()  local
812   dirend = strrchr (p, ']');  in file_impossible()
813   if (dirend == 0)  in file_impossible()
814     dirend = strrchr (p, ':');  in file_impossible()
815   dirend++;  in file_impossible()
816   if (dirend == (char *)1)  in file_impossible()
819   dirend = strrchr (p, '/');  in file_impossible()
824     if (!dirend || bslash > dirend)  in file_impossible()
825       dirend = bslash;  in file_impossible()
827     if (!dirend && p[0] && p[1] == ':')  in file_impossible()
828       dirend = p + 1;  in file_impossible()
831   if (dirend == 0)  in file_impossible()
841       char *slash = dirend;  in file_impossible()
842       if (dirend == p)  in file_impossible()
848 	  if (dirend < p + 3 && p[1] == ':' &&  in file_impossible()
849 	      (*dirend == '/' || *dirend == '\\' || *dirend == ':'))  in file_impossible()
850 	    dirend++;  in file_impossible()
852 	  dirname = (char *) alloca (dirend - p + 1);  in file_impossible()
853 	  bcopy (p, dirname, dirend - p);  in file_impossible()
854 	  dirname[dirend - p] = '\0';  in file_impossible()
889   char *dirend;  in file_impossible_p()  local
896   dirend = strrchr (filename, ']');  in file_impossible_p()
897   if (dirend == 0)  in file_impossible_p()
900   dirend = strrchr (filename, '/');  in file_impossible_p()
905     if (!dirend || bslash > dirend)  in file_impossible_p()
906       dirend = bslash;  in file_impossible_p()
908     if (!dirend && filename[0] && filename[1] == ':')  in file_impossible_p()
909       dirend = filename + 1;  in file_impossible_p()
912   if (dirend == 0)  in file_impossible_p()
922       char *slash = dirend;  in file_impossible_p()
923       if (dirend == filename)  in file_impossible_p()
929 	  if (dirend < filename + 3 && filename[1] == ':' &&  in file_impossible_p()
930 	      (*dirend == '/' || *dirend == '\\' || *dirend == ':'))  in file_impossible_p()
931 	    dirend++;  in file_impossible_p()
933 	  dirname = (char *) alloca (dirend - filename + 1);  in file_impossible_p()
934 	  bcopy (p, dirname, dirend - p);  in file_impossible_p()
935 	  dirname[dirend - p] = '\0';  in file_impossible_p()