From ef64b99e8412f2273dd2e8b3291c2f78ffc4667f Mon Sep 17 00:00:00 2001
From: roberto <roberto@FreeBSD.org>
Date: Thu, 9 Dec 1999 13:01:21 +0000
Subject: Virgin import of ntpd 4.0.98f

---
 contrib/ntp/libntp/hextoint.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 contrib/ntp/libntp/hextoint.c

(limited to 'contrib/ntp/libntp/hextoint.c')

diff --git a/contrib/ntp/libntp/hextoint.c b/contrib/ntp/libntp/hextoint.c
new file mode 100644
index 0000000..0d774eb
--- /dev/null
+++ b/contrib/ntp/libntp/hextoint.c
@@ -0,0 +1,39 @@
+/*
+ * hextoint - convert an ascii string in hex to an unsigned
+ *	      long, with error checking
+ */
+#include <ctype.h>
+
+#include "ntp_stdlib.h"
+
+int
+hextoint(
+	const char *str,
+	u_long *ival
+	)
+{
+	register u_long u;
+	register const char *cp;
+
+	cp = str;
+
+	if (*cp == '\0')
+	    return 0;
+
+	u = 0;
+	while (*cp != '\0') {
+		if (!isxdigit((int)*cp))
+		    return 0;
+		if (u >= 0x10000000)
+		    return 0;	/* overflow */
+		u <<= 4;
+		if (*cp <= '9')		/* very ascii dependent */
+		    u += *cp++ - '0';
+		else if (*cp >= 'a')
+		    u += *cp++ - 'a' + 10;
+		else
+		    u += *cp++ - 'A' + 10;
+	}
+	*ival = u;
+	return 1;
+}
-- 
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