From 8324cbe227d932ca76f878bbd943d7b552571b31 Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 6 Aug 2019 08:07:49 -0400
Subject: simplify inner loop

---
 head.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/head.c b/head.c
index 1642186..58ee02a 100644
--- a/head.c
+++ b/head.c
@@ -22,7 +22,7 @@
  * SOFTWARE.
  */
 
-#define _XOPEN_SOURCE 700
+#define _POSIX_C_SOURCE 2
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
@@ -41,13 +41,12 @@ static int head(const char *path, int nlines)
 		return 1;
 	}
 
-	while (!feof(f) && nlines > 0) {
-		char *line = NULL;
-		size_t n = 0;
-
-		getline(&line, &n, f);
-		fputs(line, stdout);
-		nlines--;
+	int c;
+	while ((c = fgetc(f)) != EOF && nlines > 0) {
+		putchar(c);
+		if (c == '\n') {
+			nlines--;
+		}
 	}
 
 	if (f != stdin) {
-- 
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