/* from Henry Spencer's stringlib */
#include <string.h>

/*
 * strerror - map error number to descriptive string
 *
 */

char *
strerror(errnum)
int errnum;
{
	extern int sys_nerr;
	extern char *sys_errlist[];

	if (errnum >= 0 && errnum < sys_nerr)
		return(sys_errlist[errnum]);
	else
		return("unknown error");
}