first draft

include/utils.h

@@ -0,0 +1,106 @@
+#include <stdlib.h>
+#include <endian.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+extern long buffering_write(int outf, char *buffer, long num);
+extern int buffering_close(int fd);
+
+/* I wonder how many alignment issues this is gonna trip in the
+   future...  it shouldn't trip any...  I guess we'll find out :) */
+
+static inline int bigendianp(void){
+  int test=1;
+  char *hack=(char *)(&test);
+  if(hack[0])return(0);
+  return(1);
+}
+
+static inline int32_t swap32(int32_t x){
+  return((((u_int32_t)x & 0x000000ffU) << 24) | 
+	 (((u_int32_t)x & 0x0000ff00U) <<  8) | 
+	 (((u_int32_t)x & 0x00ff0000U) >>  8) | 
+	 (((u_int32_t)x & 0xff000000U) >> 24));
+}
+
+static inline int16_t swap16(int16_t x){
+  return((((u_int16_t)x & 0x00ffU) <<  8) | 
+	 (((u_int16_t)x & 0xff00U) >>  8));
+}
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+
+static inline int32_t be32_to_cpu(int32_t x){
+  return(swap32(x));
+}
+
+static inline int16_t be16_to_cpu(int16_t x){
+  return(swap16(x));
+}
+
+static inline int32_t le32_to_cpu(int32_t x){
+  return(x);
+}
+
+static inline int16_t le16_to_cpu(int16_t x){
+  return(x);
+}
+
+#else
+
+static inline int32_t be32_to_cpu(int32_t x){
+  return(x);
+}
+
+static inline int16_t be16_to_cpu(int16_t x){
+  return(x);
+}
+
+static inline int32_t le32_to_cpu(int32_t x){
+  return(swap32(x));
+}
+
+static inline int16_t le16_to_cpu(int16_t x){
+  return(swap16(x));
+}
+
+
+#endif
+
+static inline int32_t cpu_to_be32(int32_t x){
+  return(be32_to_cpu(x));
+}
+
+static inline int32_t cpu_to_le32(int32_t x){
+  return(le32_to_cpu(x));
+}
+
+static inline int16_t cpu_to_be16(int16_t x){
+  return(be16_to_cpu(x));
+}
+
+static inline int16_t cpu_to_le16(int16_t x){
+  return(le16_to_cpu(x));
+}
+
+static inline char *copystring(const char *s){
+  if(s){
+    char *ret=malloc((strlen(s)+1)*sizeof(char));
+    strcpy(ret,s);
+    return(ret);
+  }
+  return(NULL);
+}
+
+static inline char *catstring(char *buff,const char *s){
+  if(s){
+    if(buff)
+      buff=realloc(buff,strlen(buff)+strlen(s)+1);
+    else
+      buff=calloc(strlen(s)+1,1);
+    strcat(buff,s);
+  }
+  return(buff);
+}
+