125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/*
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$Id: utils.h,v 1.4 2005/01/13 21:38:21 rocky Exp $
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Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
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Copyright (C) 1998 Monty xiphmont@mit.edu
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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/* I wonder how many alignment issues this is gonna trip in the
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future... it shouldn't trip any... I guess we'll find out :) */
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static inline int
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bigendianp(void)
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{
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int test=1;
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char *hack=(char *)(&test);
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if(hack[0])return(0);
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return(1);
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}
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static inline char *
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catstring(char *buff,const char *s){
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if(s){
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if(buff)
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buff=realloc(buff,strlen(buff)+strlen(s)+9);
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else
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buff=calloc(strlen(s)+9,1);
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strcat(buff,s);
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}
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return(buff);
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}
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static inline int32_t swap32(int32_t x){
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return((((u_int32_t)x & 0x000000ffU) << 24) |
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(((u_int32_t)x & 0x0000ff00U) << 8) |
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(((u_int32_t)x & 0x00ff0000U) >> 8) |
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(((u_int32_t)x & 0xff000000U) >> 24));
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}
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static inline int16_t swap16(int16_t x){
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return((((u_int16_t)x & 0x00ffU) << 8) |
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(((u_int16_t)x & 0xff00U) >> 8));
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}
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/*#if BYTE_ORDER == LITTLE_ENDIAN*/
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#ifndef WORDS_BIGENDIAN
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static inline int32_t be32_to_cpu(int32_t x){
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return(swap32(x));
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}
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static inline int16_t be16_to_cpu(int16_t x){
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return(swap16(x));
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}
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static inline int32_t le32_to_cpu(int32_t x){
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return(x);
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}
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static inline int16_t le16_to_cpu(int16_t x){
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return(x);
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}
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#else
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static inline int32_t be32_to_cpu(int32_t x){
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return(x);
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}
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static inline int16_t be16_to_cpu(int16_t x){
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return(x);
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}
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static inline int32_t le32_to_cpu(int32_t x){
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return(swap32(x));
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}
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static inline int16_t le16_to_cpu(int16_t x){
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return(swap16(x));
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}
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#endif
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static inline int32_t cpu_to_be32(int32_t x){
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return(be32_to_cpu(x));
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}
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static inline int32_t cpu_to_le32(int32_t x){
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return(le32_to_cpu(x));
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}
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static inline int16_t cpu_to_be16(int16_t x){
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return(be16_to_cpu(x));
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}
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static inline int16_t cpu_to_le16(int16_t x){
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return(le16_to_cpu(x));
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}
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void cderror(cdrom_drive_t *d, const char *s);
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void cdmessage(cdrom_drive_t *d,const char *s);
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void idperror(int messagedest, char **messages, const char *f, const char *s);
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void idmessage(int messagedest, char **messages, const char *f, const char *s);
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