use them.
* src/server/ram-io.c, src/server/ram-io.h
(dbfile_putc): New function.
(dbfile_fputs): New function.
(dbfile_feof): New function.
(dbfile_ferror): New function.
* src/server/simple-cache.c (save_one_text): Use dbfile_ferror.
(sync_part): Ditto.
* src/server/ram-output.c (foutput_string): Use dbfile_putc.
(foutput_ulong): Ditto.
(foutput_atsign): Ditto.
(foutput_newline): Ditto.
(foutput_space): Ditto.
(foutput_bool): Ditto.
(foutput_array_start): Use dbfile_fputs.
(foutput_array_end): Ditto.
(foutput_array_nodata): Ditto.
* src/server/ram-io.c (dbfile_change_magic): Use dbfile_ferror.
* src/server/local-to-global.c (l2g_write): Use dbfile_putc.
* src/server/dbck-cache.c (init_cache): Use dbfile_feof().