/*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2008 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
-/* Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
+
+/*
+ * Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
*
* strol.c - The functions strtol() & strtoul() are exported as public API
* via the header file ~driverkit/generalFuncs.h
* Commented out references to errno.
*/
-/*-
+/*
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
#include <stdlib.h>
#include <limits.h>
*/
-#include <stddef.h>
+#include <sys/types.h>
#include <machine/limits.h>
+
+long strtol(const char *nptr, char **endptr, int base);
+unsigned long strtoul(const char *nptr, char **endptr, int base);
+quad_t strtoq(const char *nptr, char **endptr, int base);
+u_quad_t strtouq(const char *nptr, char **endptr, int base);
+char *strchr(const char *str, int ch);
+char *strncat(char *s1, const char *s2, unsigned long n);
+
+
typedef int BOOL;
static inline BOOL
* alphabets and digits are each contiguous.
*/
long
-strtol(nptr, endptr, base)
- const char *nptr;
- char **endptr;
- register int base;
+strtol(const char *nptr, char **endptr, int base)
{
register const char *s = nptr;
register unsigned long acc;
} else if (neg)
acc = -acc;
if (endptr != 0)
- *endptr = (char *)(any ? s - 1 : nptr);
+ {
+ if(any)
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(s - 1, const, char *);
+ }
+ else
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(nptr, const, char *);
+ }
+ }
return (acc);
}
unsigned long
-strtoul(nptr, endptr, base)
- const char *nptr;
- char **endptr;
- register int base;
+strtoul(const char *nptr, char **endptr, int base)
{
register const char *s = nptr;
register unsigned long acc;
} else if (neg)
acc = -acc;
if (endptr != 0)
- *endptr = (char *)(any ? s - 1 : nptr);
+ {
+ if(any)
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(s - 1, const, char *);
+ }
+ else
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(nptr, const, char *);
+ }
+ }
+
return (acc);
}
+/*
+ * Convert a string to a quad integer.
+ *
+ * Ignores `locale' stuff. Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+quad_t
+strtoq(const char *nptr, char **endptr, int base)
+{
+ register const char *s;
+ register u_quad_t acc;
+ register int c;
+ register u_quad_t qbase, cutoff;
+ register int neg, any, cutlim;
+
+ /*
+ * Skip white space and pick up leading +/- sign if any.
+ * If base is 0, allow 0x for hex and 0 for octal, else
+ * assume decimal; if base is already 16, allow 0x.
+ */
+ s = nptr;
+ do {
+ c = *s++;
+ } while (isspace(c));
+ if (c == '-') {
+ neg = 1;
+ c = *s++;
+ } else {
+ neg = 0;
+ if (c == '+')
+ c = *s++;
+ }
+ if ((base == 0 || base == 16) &&
+ c == '0' && (*s == 'x' || *s == 'X')) {
+ c = s[1];
+ s += 2;
+ base = 16;
+ }
+ if (base == 0)
+ base = c == '0' ? 8 : 10;
+
+ /*
+ * Compute the cutoff value between legal numbers and illegal
+ * numbers. That is the largest legal value, divided by the
+ * base. An input number that is greater than this value, if
+ * followed by a legal input character, is too big. One that
+ * is equal to this value may be valid or not; the limit
+ * between valid and invalid numbers is then based on the last
+ * digit. For instance, if the range for quads is
+ * [-9223372036854775808..9223372036854775807] and the input base
+ * is 10, cutoff will be set to 922337203685477580 and cutlim to
+ * either 7 (neg==0) or 8 (neg==1), meaning that if we have
+ * accumulated a value > 922337203685477580, or equal but the
+ * next digit is > 7 (or 8), the number is too big, and we will
+ * return a range error.
+ *
+ * Set any if any `digits' consumed; make it negative to indicate
+ * overflow.
+ */
+ qbase = (unsigned)base;
+ cutoff = neg ? -(u_quad_t)QUAD_MIN : QUAD_MAX;
+ cutlim = cutoff % qbase;
+ cutoff /= qbase;
+ for (acc = 0, any = 0;; c = *s++) {
+ if (isdigit(c))
+ c -= '0';
+ else if (isalpha(c))
+ c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+ else
+ break;
+ if (c >= base)
+ break;
+ if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
+ any = -1;
+ else {
+ any = 1;
+ acc *= qbase;
+ acc += c;
+ }
+ }
+ if (any < 0) {
+ acc = neg ? QUAD_MIN : QUAD_MAX;
+// errno = ERANGE;
+ } else if (neg)
+ acc = -acc;
+ if (endptr != 0)
+ {
+ if(any)
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(s - 1, const, char *);
+ }
+ else
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(nptr, const, char *);
+ }
+ }
+
+ return (acc);
+}
+
+
+/*
+ * Convert a string to an unsigned quad integer.
+ *
+ * Ignores `locale' stuff. Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+u_quad_t
+strtouq(const char *nptr,
+ char **endptr,
+ register int base)
+{
+ register const char *s = nptr;
+ register u_quad_t acc;
+ register int c;
+ register u_quad_t qbase, cutoff;
+ register int neg, any, cutlim;
+
+ /*
+ * See strtoq for comments as to the logic used.
+ */
+ s = nptr;
+ do {
+ c = *s++;
+ } while (isspace(c));
+ if (c == '-') {
+ neg = 1;
+ c = *s++;
+ } else {
+ neg = 0;
+ if (c == '+')
+ c = *s++;
+ }
+ if ((base == 0 || base == 16) &&
+ c == '0' && (*s == 'x' || *s == 'X')) {
+ c = s[1];
+ s += 2;
+ base = 16;
+ }
+ if (base == 0)
+ base = c == '0' ? 8 : 10;
+ qbase = (unsigned)base;
+ cutoff = (u_quad_t)UQUAD_MAX / qbase;
+ cutlim = (u_quad_t)UQUAD_MAX % qbase;
+ for (acc = 0, any = 0;; c = *s++) {
+ if (isdigit(c))
+ c -= '0';
+ else if (isalpha(c))
+ c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+ else
+ break;
+ if (c >= base)
+ break;
+ if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
+ any = -1;
+ else {
+ any = 1;
+ acc *= qbase;
+ acc += c;
+ }
+ }
+ if (any < 0) {
+ acc = UQUAD_MAX;
+// errno = ERANGE;
+ } else if (neg)
+ acc = -acc;
+ if (endptr != 0)
+ {
+ if(any)
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(s - 1, const, char *);
+ }
+ else
+ {
+ *endptr = __CAST_AWAY_QUALIFIER(nptr, const, char *);
+ }
+ }
+
+ return (acc);
+}
+
+
/*
*
*/
{
do {
if (*str == ch)
- return((char *)str);
+ return(__CAST_AWAY_QUALIFIER(str, const, char *));
} while (*str++);
return ((char *) 0);
}
projects / apple / xnu.git / blobdiff