ansi_c_pg31_ch01_ex16.c

/*
 * Exercise 1-16.
 * Revise the main routine of the longest-line program so it will correctly
 * print the length of arbitrary long input lines, and as much as possible of
 * the text.
 */

#include <stdio.h>

#define	MAXLINE 20		/* maximum input line length */

/* getline:  read a line into s, return length  */
int
get_line(char s[], int lim)
{
	int c, i, j;
	j = 0;

	for (i = 0; (c = getchar()) != EOF && c != '\n'; ++i) {
		if (i < lim -2) {
			s[j++] = c;
		}
	}
	if (c == '\n') {
		s[j++] = c;
	}
	s[j] = '\0';
	return (i);
}

int
main()
{
	int len;
	char line[MAXLINE];

	while ((len = get_line(line, MAXLINE)) > 0) {
		printf("TL[%3d] %s", len, line);
	}
	return (0);
}