diff options
Diffstat (limited to 'lib/token.c')
-rw-r--r-- | lib/token.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/token.c b/lib/token.c new file mode 100644 index 0000000..b89f1fa --- /dev/null +++ b/lib/token.c @@ -0,0 +1,49 @@ +/* token.c -- misc. access functions for mkid database tokens + Copyright (C) 1986, 1995, 1996 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include <config.h> +#include "token.h" + +unsigned int +tok_flags (char const *buf) +{ + return *(unsigned char const *)&buf[strlen (buf) + 1]; +} + +#define TOK_COUNT_ADDR(buf) ((unsigned char const *)(TOK_FLAGS_ADDR (buf) + 1)) +#define TOK_HITS_ADDR(buf) ((unsigned char const *)(TOK_COUNT_ADDR (buf) + 2)) + +unsigned short +tok_count (char const *buf) +{ + unsigned char const *flags = (unsigned char const *)&buf[strlen (buf) + 1]; + unsigned char const *addr = flags + 1; + unsigned short count = *addr; + if (*flags & TOK_SHORT_COUNT) + count += (*++addr << 8); + return count; +} + +unsigned char const * +tok_hits_addr (char const *buf) +{ + unsigned char const *flags = (unsigned char const *)&buf[strlen (buf) + 1]; + unsigned char const *addr = flags + 2; + if (*flags & TOK_SHORT_COUNT) + addr++; + return addr; +} |