36 lines
797 B
C
36 lines
797 B
C
/* $Header$ */
|
|
/*
|
|
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
* See the copyright notice in the ACK home directory, in the file "Copyright".
|
|
*/
|
|
#define MININT (1 << (sizeof(int) * 8 - 1))
|
|
#define MAXCHUNK (~MININT) /* Highest count we read(2). */
|
|
/* Unfortunately, MAXCHUNK is too large with some compilers. Put it in
|
|
an int!
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
#include "archiver.h"
|
|
#include "rd_bytes.h"
|
|
|
|
static int maxchunk = MAXCHUNK;
|
|
|
|
/*
|
|
* We don't have to worry about byte order here.
|
|
* Just read "cnt" bytes from file-descriptor "fd".
|
|
*/
|
|
void rd_bytes(int fd, char *string, long cnt)
|
|
{
|
|
|
|
while (cnt) {
|
|
register int n = cnt >= maxchunk ? maxchunk : cnt;
|
|
|
|
if (read(fd, string, n) != n)
|
|
rd_fatal();
|
|
string += n;
|
|
cnt -= n;
|
|
}
|
|
}
|