1 files changed, 113 insertions, 0 deletions
diff --git a/lib/libstand/gets.c b/lib/libstand/gets.c
new file mode 100644
index 0000000..dc26a99
--- /dev/null
+++ b/lib/libstand/gets.c
@@ -0,0 +1,113 @@
+/*	$NetBSD: gets.c,v 1.6 1995/10/11 21:16:57 pk Exp $	*/
+
+/*-
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)gets.c	8.1 (Berkeley) 6/11/93
+ */
+
+#include "stand.h"
+
+/* gets() with constrained input length */
+
+void
+ngets(char *buf, int n)
+{
+    register int c;
+    register char *lp;
+
+    for (lp = buf;;)
+	switch (c = getchar() & 0177) {
+	case '\n':
+	case '\r':
+	    *lp = '\0';
+	    putchar('\n');
+	    return;
+	case '\b':
+	case '\177':
+	    if (lp > buf) {
+		lp--;
+		putchar('\b');
+		putchar(' ');
+		putchar('\b');
+	    }
+	    break;
+	case 'r'&037: {
+	    register char *p;
+
+	    putchar('\n');
+	    for (p = buf; p < lp; ++p)
+		putchar(*p);
+	    break;
+	}
+	case 'u'&037:
+	case 'w'&037:
+	    lp = buf;
+	    putchar('\n');
+	    break;
+	default:
+	    if ((n < 1) || ((lp - buf) < n)) {
+		*lp++ = c;
+		putchar(c);
+	    }
+	}
+    /*NOTREACHED*/
+}
+
+int
+fgetstr(char *buf, int size, int fd)
+{
+    char	c;
+    int		err, len;
+    
+    size--;	/* leave space for terminator */
+    len = 0;
+    while (size != 0) {
+	err = read(fd, &c, sizeof(c));
+	if (err < 0)		/* read error */
+	    return(-1);
+	if (err == 0) {		/* EOF */
+	    if (len == 0)
+		return(-1);	/* nothing to read */
+	    break;
+	}
+	if ((c == '\r') ||	/* line terminators */
+	    (c == '\n'))
+	    break;
+	*buf++ = c;		/* keep char */
+	size--;
+	len++;
+    }
+    *buf = 0;
+    return(len);
+}
+