1 files changed, 112 insertions, 0 deletions
diff --git a/compat/strtoi.c b/compat/strtoi.c
new file mode 100644
index 0000000..701d57b
--- /dev/null
+++ b/compat/strtoi.c
@@ -0,0 +1,112 @@
+/*
+ * dhcpcd - DHCP client daemon
+ * Copyright (c) 2006-2015 Roy Marples <roy@marples.name>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <stdlib.h>
+
+#include "strtoi.h"
+
+intmax_t
+strtoi(const char * __restrict nptr, char ** __restrict endptr, int base,
+    intmax_t lo, intmax_t hi, int *rstatus)
+{
+	int serrno;
+	intmax_t r;
+	char *ep;
+	int rep;
+
+	if (endptr == NULL)
+		endptr = &ep;
+	if (rstatus == NULL)
+		rstatus = &rep;
+
+	serrno = errno;
+	errno = 0;
+	r = strtoimax(nptr, endptr, base);
+	*rstatus = errno;
+	errno = serrno;
+
+	if (*rstatus == 0) {
+		if (nptr == *endptr)
+			*rstatus = ECANCELED;
+		else if (**endptr != '\0')
+			*rstatus = ENOTSUP;
+	}
+
+	if (r < lo) {
+		if (*rstatus == 0)
+			*rstatus = ERANGE;
+		return lo;
+	}
+	if (r > hi) {
+		if (*rstatus == 0)
+			*rstatus = ERANGE;
+		return hi;
+	}
+	return r;
+}
+
+uintmax_t
+strtou(const char * __restrict nptr, char ** __restrict endptr, int base,
+    uintmax_t lo, uintmax_t hi, int *rstatus)
+{
+	int serrno;
+	uintmax_t r;
+	char *ep;
+	int rep;
+
+	if (endptr == NULL)
+		endptr = &ep;
+	if (rstatus == NULL)
+		rstatus = &rep;
+
+	serrno = errno;
+	errno = 0;
+	r = strtoumax(nptr, endptr, base);
+	*rstatus = errno;
+	errno = serrno;
+
+	if (*rstatus == 0) {
+		if (nptr == *endptr)
+			*rstatus = ECANCELED;
+		else if (**endptr != '\0')
+			*rstatus = ENOTSUP;
+	}
+
+	if (r < lo) {
+		if (*rstatus == 0)
+			*rstatus = ERANGE;
+		return lo;
+	}
+	if (r > hi) {
+		if (*rstatus == 0)
+			*rstatus = ERANGE;
+		return hi;
+	}
+	return r;
+}