use syscall for doing syswrite stuff -- more portable?

[unix-history] / usr / src / local / sccscmds / sccscmds.ok / util / write.c

# include "errno.h"
# include "../hdr/macros.h"
#include <sys/syscall.h>
#define	syswrite(a,b,c)	syscall(SYS_write,a,b,c)
SCCSID(@(#)write	2.1);

/*
	Interface to write(II) (called syswrite) which handles
	all error conditions.
	Returns number of bytes written on success,
	returns fatal(<mesg>) on failure.
*/

write(fildes,buffer,nbytes)
char *buffer;
{
	register int n;

	if (nbytes>0 && (n=syswrite(fildes,buffer,nbytes))!=nbytes)
		n = xmsg("","write");
	return(n);
}