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-rw-r--r--linux/lib/libfreeswan/ultoa.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/linux/lib/libfreeswan/ultoa.c b/linux/lib/libfreeswan/ultoa.c
new file mode 100644
index 000000000..2c2644826
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+++ b/linux/lib/libfreeswan/ultoa.c
@@ -0,0 +1,67 @@
+/*
+ * convert unsigned long to ASCII
+ * Copyright (C) 1998, 1999 Henry Spencer.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/lgpl.txt>.
+ *
+ * This library 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 Library General Public
+ * License for more details.
+ *
+ * RCSID $Id: ultoa.c,v 1.1 2004/03/15 20:35:26 as Exp $
+ */
+#include "internal.h"
+#include "freeswan.h"
+
+/*
+ - ultoa - convert unsigned long to decimal ASCII
+ */
+size_t /* length required for full conversion */
+ultoa(n, base, dst, dstlen)
+unsigned long n;
+int base;
+char *dst; /* need not be valid if dstlen is 0 */
+size_t dstlen;
+{
+ char buf[3*sizeof(unsigned long) + 1];
+ char *bufend = buf + sizeof(buf);
+ size_t len;
+ char *p;
+ static char hex[] = "0123456789abcdef";
+
+ p = bufend;
+ *--p = '\0';
+ if (base == 10) {
+ do {
+ *--p = n%10 + '0';
+ n /= 10;
+ } while (n != 0);
+ } else if (base == 16) {
+ do {
+ *--p = hex[n&0xf];
+ n >>= 4;
+ } while (n != 0);
+ *--p = 'x';
+ *--p = '0';
+ } else if (base == 8) {
+ do {
+ *--p = (n&07) + '0';
+ n >>= 3;
+ } while (n != 0);
+ *--p = '0';
+ } else
+ *--p = '?';
+
+ len = bufend - p;
+
+ if (dstlen > 0) {
+ if (len > dstlen)
+ *(p + dstlen - 1) = '\0';
+ strcpy(dst, p);
+ }
+ return len;
+}