107 lines
2.0 KiB
C
107 lines
2.0 KiB
C
#include <stdlib.h>
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#include <endian.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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extern long buffering_write(int outf, char *buffer, long num);
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extern int buffering_close(int fd);
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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 bigendianp(void){
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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 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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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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static inline char *copystring(const char *s){
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if(s){
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char *ret=malloc((strlen(s)+1)*sizeof(char));
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strcpy(ret,s);
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return(ret);
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}
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return(NULL);
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}
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static inline char *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)+1);
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else
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buff=calloc(strlen(s)+1,1);
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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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