#include <alef.h> /* find returns a pointer to the location of string str2 in string str1, * if it exists.  Otherwise, it points to the end of str1. */byte *find(byte *str1, byte *str2) {	byte *s1, *s2; 	for (; *str1!='\0'; str1++) {		s1=str1;		s2=str2;		for (; *s2!='\0' && *s1==*s2;) {			s1++;			s2++;		}		if ( *s2 == '\0' )	    		break;	} 	return(str1);} /* read into buf characters until either the buffer is filled * or a newline is reached.  The number of characters read * is returned. */intgetline(int fd, byte *buf, int len) {	byte *bp, c;	int i, n; 	i = 0;	bp = buf;	while ((n=read(fd, bp, 1)) == 1) {		if (*bp == '\r') continue;		i += n; 		c = *bp++;		if (c == '\n' || c == '\004' || i >= len-1)			break;	}	if (n < 0)		return(n);	*bp = '\0';	return(i);}