1 files changed, 120 insertions, 0 deletions
diff --git a/librols/astoll.c b/librols/astoll.c
new file mode 100644
index 0000000..1e35808
--- /dev/null
+++ b/librols/astoll.c
@@ -0,0 +1,120 @@
+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)astoll.c	1.3 03/06/15 Copyright 1985, 2000-2003 J. Schilling */
+/*
+ *	astoll() converts a string to long long
+ *
+ *	Leading tabs and spaces are ignored.
+ *	Both return pointer to the first char that has not been used.
+ *	Caller must check if this means a bad conversion.
+ *
+ *	leading "+" is ignored
+ *	leading "0"  makes conversion octal (base 8)
+ *	leading "0x" makes conversion hex   (base 16)
+ *
+ *	Llong is silently reverted to long if the compiler does not
+ *	support long long.
+ *
+ *	Copyright (c) 1985, 2000-2003 J. Schilling
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING.  If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <mconfig.h>
+#include <standard.h>
+#include <utypes.h>
+#include <schily.h>
+
+#define	is_space(c)	 ((c) == ' ' || (c) == '\t')
+#define	is_digit(c)	 ((c) >= '0' && (c) <= '9')
+#define	is_hex(c)	(\
+			((c) >= 'a' && (c) <= 'f') || \
+			((c) >= 'A' && (c) <= 'F'))
+
+#define	to_lower(c)	(((c) >= 'A' && (c) <= 'Z') ? (c) - 'A'+'a' : (c))
+
+char *
+astoll(s, l)
+	register const char *s;
+	Llong *l;
+{
+	return (astollb(s, l, 0));
+}
+
+char *
+astollb(s, l, base)
+	register const char *s;
+	Llong *l;
+	register int base;
+{
+	int neg = 0;
+	register Llong ret = (Llong)0;
+	register int digit;
+	register char c;
+
+	while (is_space(*s))
+		s++;
+
+	if (*s == '+') {
+		s++;
+	} else if (*s == '-') {
+		s++;
+		neg++;
+	}
+
+	if (base == 0) {
+		if (*s == '0') {
+			base = 8;
+			s++;
+			if (*s == 'x' || *s == 'X') {
+				s++;
+				base = 16;
+			}
+		} else {
+			base = 10;
+		}
+	}
+	for (; (c = *s) != 0; s++) {
+
+		if (is_digit(c)) {
+			digit = c - '0';
+		} else if (is_hex(c)) {
+			digit = to_lower(c) - 'a' + 10;
+		} else {
+			break;
+		}
+
+		if (digit < base) {
+			ret *= base;
+			ret += digit;
+		} else {
+			break;
+		}
+	}
+	if (neg)
+		ret = -ret;
+	*l = ret;
+	return ((char *)s);
+}