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/* Time-stamp: <2006-07-12 23:12:12 poser>
*
* This function reads from a file descriptor presumed to contain text encoded
* in native order UTF-32 and returns the next UTF-32 character.
* No conversion is necessary in this case, so the function is trivial.
* It is provided for compatibility with functions that actually
* perform a conversion.
*
* Author: Bill Poser (wjposer@unagi.cis.upenn.edu)
*
*/
#include <unistd.h>
#include <stdlib.h>
#include "utf8error.h"
#define FALSE 0
#define TRUE 1
typedef unsigned long UTF32; /* At least 32 bits */
#define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF
UTF32 Get_UTF32 (int fd, int *bytes,unsigned char **rb)
{
int BytesRead;
UTF32 ch;
BytesRead = read(fd,(void *) &ch,sizeof(UTF32));
if (BytesRead == 0) return (UTF8_ENDOFFILE);
if (BytesRead < 0) return (UTF8_IOERROR);
*bytes = 4;
*rb=(unsigned char *)&ch;
if(ch <= UNI_MAX_UTF32) return(ch);
else return(UTF8_BADOUTCODE);
}
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