/* $Header: /cvsup/minix/src/commands/aal/rd_bytes.c,v 1.1.1.1 2005/04/21 14:53:58 beng Exp $ */ /* * (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! */ static int maxchunk = MAXCHUNK; /* * We don't have to worry about byte order here. * Just read "cnt" bytes from file-descriptor "fd". */ int rd_bytes(fd, string, cnt) register char *string; register long cnt; { while (cnt) { register int n = cnt >= maxchunk ? maxchunk : cnt; if (read(fd, string, n) != n) rd_fatal(); string += n; cnt -= n; } }