Please welcome ZFS - The last word in file systems.

ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.

I'd like to thank all SUN developers that created this great piece of software.

Supported by:	Wheel LTD (http://www.wheel.pl/)
Supported by:	The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by:	Sentex (http://www.sentex.net/)

1 files changed, 300 insertions, 0 deletions

diff --git a/cddl/contrib/opensolaris/lib/libuutil/common/uu_strtoint.c b/cddl/contrib/opensolaris/lib/libuutil/common/uu_strtoint.c
new file mode 100644
index 0000000..8fd1148
--- /dev/null
+++ b/cddl/contrib/opensolaris/lib/libuutil/common/uu_strtoint.c
@@ -0,0 +1,300 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include "libuutil_common.h"
+
+#include <limits.h>
+#include <ctype.h>
+
+#define	MAX_BASE	36
+
+#define	IS_DIGIT(x)	((x) >= '0' && (x) <= '9')
+
+#define	CTOI(x) (((x) >= '0' && (x) <= '9') ? (x) - '0' : \
+	    ((x) >= 'a' && (x) <= 'z') ? (x) + 10 - 'a' : (x) + 10 - 'A')
+
+static int
+strtoint(const char *s_arg, uint64_t *out, uint32_t base, int sign)
+{
+	const unsigned char *s = (const unsigned char *)s_arg;
+
+	uint64_t val = 0;
+	uint64_t multmax;
+
+	unsigned c, i;
+
+	int neg = 0;
+
+	int bad_digit = 0;
+	int bad_char = 0;
+	int overflow = 0;
+
+	if (s == NULL || base == 1 || base > MAX_BASE) {
+		uu_set_error(UU_ERROR_INVALID_ARGUMENT);
+		return (-1);
+	}
+
+	while ((c = *s) != 0 && isspace(c))
+		s++;
+
+	switch (c) {
+	case '-':
+		if (!sign)
+			overflow = 1;		/* becomes underflow below */
+		neg = 1;
+		/*FALLTHRU*/
+	case '+':
+		c = *++s;
+		break;
+	default:
+		break;
+	}
+
+	if (c == '\0') {
+		uu_set_error(UU_ERROR_EMPTY);
+		return (-1);
+	}
+
+	if (base == 0) {
+		if (c != '0')
+			base = 10;
+		else if (s[1] == 'x' || s[1] == 'X')
+			base = 16;
+		else
+			base = 8;
+	}
+
+	if (base == 16 && c == '0' && (s[1] == 'x' || s[1] == 'X'))
+		c = *(s += 2);
+
+	if ((val = CTOI(c)) >= base) {
+		if (IS_DIGIT(c))
+			bad_digit = 1;
+		else
+			bad_char = 1;
+		val = 0;
+	}
+
+	multmax = (uint64_t)UINT64_MAX / (uint64_t)base;
+
+	for (c = *++s; c != '\0'; c = *++s) {
+		if ((i = CTOI(c)) >= base) {
+			if (isspace(c))
+				break;
+			if (IS_DIGIT(c))
+				bad_digit = 1;
+			else
+				bad_char = 1;
+			i = 0;
+		}
+
+		if (val > multmax)
+			overflow = 1;
+
+		val *= base;
+		if ((uint64_t)UINT64_MAX - val < (uint64_t)i)
+			overflow = 1;
+
+		val += i;
+	}
+
+	while ((c = *s) != 0) {
+		if (!isspace(c))
+			bad_char = 1;
+		s++;
+	}
+
+	if (sign) {
+		if (neg) {
+			if (val > -(uint64_t)INT64_MIN)
+				overflow = 1;
+		} else {
+			if (val > INT64_MAX)
+				overflow = 1;
+		}
+	}
+
+	if (neg)
+		val = -val;
+
+	if (bad_char | bad_digit | overflow) {
+		if (bad_char)
+			uu_set_error(UU_ERROR_INVALID_CHAR);
+		else if (bad_digit)
+			uu_set_error(UU_ERROR_INVALID_DIGIT);
+		else if (overflow) {
+			if (neg)
+				uu_set_error(UU_ERROR_UNDERFLOW);
+			else
+				uu_set_error(UU_ERROR_OVERFLOW);
+		}
+		return (-1);
+	}
+
+	*out = val;
+	return (0);
+}
+
+int
+uu_strtoint(const char *s, void *v, size_t sz, int base,
+    int64_t min, int64_t max)
+{
+	uint64_t val_u;
+	int64_t val;
+
+	if (min > max)
+		goto bad_argument;
+
+	switch (sz) {
+	case 1:
+		if (max > INT8_MAX || min < INT8_MIN)
+			goto bad_argument;
+		break;
+	case 2:
+		if (max > INT16_MAX || min < INT16_MIN)
+			goto bad_argument;
+		break;
+	case 4:
+		if (max > INT32_MAX || min < INT32_MIN)
+			goto bad_argument;
+		break;
+	case 8:
+		if (max > INT64_MAX || min < INT64_MIN)
+			goto bad_argument;
+		break;
+	default:
+		goto bad_argument;
+	}
+
+	if (min == 0 && max == 0) {
+		min = -(1ULL << (8 * sz - 1));
+		max = (1ULL << (8 * sz - 1)) - 1;
+	}
+
+	if (strtoint(s, &val_u, base, 1) == -1)
+		return (-1);
+
+	val = (int64_t)val_u;
+
+	if (val < min) {
+		uu_set_error(UU_ERROR_UNDERFLOW);
+		return (-1);
+	} else if (val > max) {
+		uu_set_error(UU_ERROR_OVERFLOW);
+		return (-1);
+	}
+
+	switch (sz) {
+	case 1:
+		*(int8_t *)v = val;
+		return (0);
+	case 2:
+		*(int16_t *)v = val;
+		return (0);
+	case 4:
+		*(int32_t *)v = val;
+		return (0);
+	case 8:
+		*(int64_t *)v = val;
+		return (0);
+	default:
+		break;		/* fall through to bad_argument */
+	}
+
+bad_argument:
+	uu_set_error(UU_ERROR_INVALID_ARGUMENT);
+	return (-1);
+}
+
+int
+uu_strtouint(const char *s, void *v, size_t sz, int base,
+    uint64_t min, uint64_t max)
+{
+	uint64_t val;
+
+	if (min > max)
+		goto bad_argument;
+
+	switch (sz) {
+	case 1:
+		if (max > UINT8_MAX)
+			goto bad_argument;
+		break;
+	case 2:
+		if (max > UINT16_MAX)
+			goto bad_argument;
+		break;
+	case 4:
+		if (max > UINT32_MAX)
+			goto bad_argument;
+		break;
+	case 8:
+		if (max > UINT64_MAX)
+			goto bad_argument;
+		break;
+	default:
+		goto bad_argument;
+	}
+
+	if (min == 0 && max == 0) {
+		/* we have to be careful, since << can overflow */
+		max = (1ULL << (8 * sz - 1)) * 2 - 1;
+	}
+
+	if (strtoint(s, &val, base, 0) == -1)
+		return (-1);
+
+	if (val < min) {
+		uu_set_error(UU_ERROR_UNDERFLOW);
+		return (-1);
+	} else if (val > max) {
+		uu_set_error(UU_ERROR_OVERFLOW);
+		return (-1);
+	}
+
+	switch (sz) {
+	case 1:
+		*(uint8_t *)v = val;
+		return (0);
+	case 2:
+		*(uint16_t *)v = val;
+		return (0);
+	case 4:
+		*(uint32_t *)v = val;
+		return (0);
+	case 8:
+		*(uint64_t *)v = val;
+		return (0);
+	default:
+		break;		/* shouldn't happen, fall through */
+	}
+
+bad_argument:
+	uu_set_error(UU_ERROR_INVALID_ARGUMENT);
+	return (-1);
+}