17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57257d1b4Sraf * Common Development and Distribution License (the "License"). 67257d1b4Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217257d1b4Sraf 227c478bd9Sstevel@tonic-gate /* 232ef9abdcSjv * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 28*28de4f3cSToomas Soome /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 302ef9abdcSjv #if defined(_KERNEL) && !defined(_BOOT) 31*28de4f3cSToomas Soome #include <sys/null.h> 322ef9abdcSjv #include <sys/errno.h> 332ef9abdcSjv #else /* _KERNEL && !_BOOT */ 34*28de4f3cSToomas Soome #if !defined(_BOOT) && !defined(_KMDB) && !defined(_STANDALONE) 357257d1b4Sraf #include "lint.h" 36*28de4f3cSToomas Soome #endif /* !_BOOT && !_KMDB && !_STANDALONE */ 37*28de4f3cSToomas Soome #if defined(_STANDALONE) 38*28de4f3cSToomas Soome #include <sys/cdefs.h> 39*28de4f3cSToomas Soome #include <stand.h> 40*28de4f3cSToomas Soome #include <limits.h> 41*28de4f3cSToomas Soome 42*28de4f3cSToomas Soome typedef unsigned long long u_longlong_t; 43*28de4f3cSToomas Soome #else 447c478bd9Sstevel@tonic-gate #include <errno.h> 457c478bd9Sstevel@tonic-gate #include <ctype.h> 467c478bd9Sstevel@tonic-gate #include <limits.h> 477c478bd9Sstevel@tonic-gate #include <stdlib.h> 48*28de4f3cSToomas Soome #endif /* _STANDALONE */ 492ef9abdcSjv #endif /* _KERNEL && !_BOOT */ 502ef9abdcSjv #include "strtolctype.h" 512ef9abdcSjv #include <sys/types.h> 527c478bd9Sstevel@tonic-gate 532ef9abdcSjv #if defined(_KERNEL) && !defined(_BOOT) 542ef9abdcSjv int 552ef9abdcSjv ddi_strtoull(const char *str, char **nptr, int base, u_longlong_t *result) 562ef9abdcSjv #else /* _KERNEL && !_BOOT */ 577c478bd9Sstevel@tonic-gate u_longlong_t 587c478bd9Sstevel@tonic-gate strtoull(const char *str, char **nptr, int base) 592ef9abdcSjv #endif /* _KERNEL && !_BOOT */ 607c478bd9Sstevel@tonic-gate { 617c478bd9Sstevel@tonic-gate u_longlong_t val; 627c478bd9Sstevel@tonic-gate int c; 637c478bd9Sstevel@tonic-gate int xx; 647c478bd9Sstevel@tonic-gate int neg = 0; 652ef9abdcSjv u_longlong_t multmax; 662ef9abdcSjv const char **ptr = (const char **)nptr; 672ef9abdcSjv const unsigned char *ustr = (const unsigned char *)str; 687c478bd9Sstevel@tonic-gate 69*28de4f3cSToomas Soome if (ptr != NULL) 707c478bd9Sstevel@tonic-gate *ptr = (char *)ustr; /* in case no number is formed */ 717c478bd9Sstevel@tonic-gate if (base < 0 || base > MBASE || base == 1) { 722ef9abdcSjv /* base is invalid -- should be a fatal error */ 732ef9abdcSjv #if defined(_KERNEL) && !defined(_BOOT) 742ef9abdcSjv return (EINVAL); 752ef9abdcSjv #else /* _KERNEL && !_BOOT */ 767c478bd9Sstevel@tonic-gate errno = EINVAL; 772ef9abdcSjv return (0); 782ef9abdcSjv #endif /* _KERNEL && !_BOOT */ 797c478bd9Sstevel@tonic-gate } 807c478bd9Sstevel@tonic-gate if (!isalnum(c = *ustr)) { 817c478bd9Sstevel@tonic-gate while (isspace(c)) 827c478bd9Sstevel@tonic-gate c = *++ustr; 837c478bd9Sstevel@tonic-gate switch (c) { 847c478bd9Sstevel@tonic-gate case '-': 857c478bd9Sstevel@tonic-gate neg++; 867c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 877c478bd9Sstevel@tonic-gate case '+': 887c478bd9Sstevel@tonic-gate c = *++ustr; 897c478bd9Sstevel@tonic-gate } 907c478bd9Sstevel@tonic-gate } 91*28de4f3cSToomas Soome if (base == 0) { 927c478bd9Sstevel@tonic-gate if (c != '0') 937c478bd9Sstevel@tonic-gate base = 10; 947c478bd9Sstevel@tonic-gate else if (ustr[1] == 'x' || ustr[1] == 'X') 957c478bd9Sstevel@tonic-gate base = 16; 967c478bd9Sstevel@tonic-gate else 977c478bd9Sstevel@tonic-gate base = 8; 98*28de4f3cSToomas Soome } 997c478bd9Sstevel@tonic-gate /* 1007c478bd9Sstevel@tonic-gate * for any base > 10, the digits incrementally following 1017c478bd9Sstevel@tonic-gate * 9 are assumed to be "abc...z" or "ABC...Z" 1027c478bd9Sstevel@tonic-gate */ 1032ef9abdcSjv if (!lisalnum(c) || (xx = DIGIT(c)) >= base) { 1042ef9abdcSjv /* no number formed */ 1052ef9abdcSjv #if defined(_KERNEL) && !defined(_BOOT) 1062ef9abdcSjv return (EINVAL); 1072ef9abdcSjv #else /* _KERNEL && !_BOOT */ 1082ef9abdcSjv return (0); 1092ef9abdcSjv #endif /* _KERNEL && !_BOOT */ 1102ef9abdcSjv } 1117c478bd9Sstevel@tonic-gate if (base == 16 && c == '0' && (ustr[1] == 'x' || ustr[1] == 'X') && 1127257d1b4Sraf isxdigit(ustr[2])) 1137c478bd9Sstevel@tonic-gate c = *(ustr += 2); /* skip over leading "0x" or "0X" */ 1147c478bd9Sstevel@tonic-gate 1152ef9abdcSjv multmax = ULLONG_MAX / (u_longlong_t)base; 1167c478bd9Sstevel@tonic-gate val = DIGIT(c); 1177c478bd9Sstevel@tonic-gate for (c = *++ustr; lisalnum(c) && (xx = DIGIT(c)) < base; ) { 1187c478bd9Sstevel@tonic-gate if (val > multmax) 1197c478bd9Sstevel@tonic-gate goto overflow; 1207c478bd9Sstevel@tonic-gate val *= base; 121*28de4f3cSToomas Soome if (ULLONG_MAX - val < (unsigned long long)xx) 1227c478bd9Sstevel@tonic-gate goto overflow; 1237c478bd9Sstevel@tonic-gate val += xx; 1247c478bd9Sstevel@tonic-gate c = *++ustr; 1257c478bd9Sstevel@tonic-gate } 126*28de4f3cSToomas Soome if (ptr != NULL) 1277c478bd9Sstevel@tonic-gate *ptr = (char *)ustr; 1282ef9abdcSjv #if defined(_KERNEL) && !defined(_BOOT) 1292ef9abdcSjv *result = neg ? -val : val; 1302ef9abdcSjv return (0); 1312ef9abdcSjv #else /* _KERNEL && !_BOOT */ 1327c478bd9Sstevel@tonic-gate return (neg ? -val : val); 1332ef9abdcSjv #endif /* _KERNEL && !_BOOT */ 1347c478bd9Sstevel@tonic-gate 1357c478bd9Sstevel@tonic-gate overflow: 1367c478bd9Sstevel@tonic-gate for (c = *++ustr; lisalnum(c) && (xx = DIGIT(c)) < base; (c = *++ustr)) 1377c478bd9Sstevel@tonic-gate ; 138*28de4f3cSToomas Soome if (ptr != NULL) 1397c478bd9Sstevel@tonic-gate *ptr = (char *)ustr; 1402ef9abdcSjv #if defined(_KERNEL) && !defined(_BOOT) 1412ef9abdcSjv return (ERANGE); 1422ef9abdcSjv #else /* _KERNEL && !_BOOT */ 1437c478bd9Sstevel@tonic-gate errno = ERANGE; 1442ef9abdcSjv return (ULLONG_MAX); 1452ef9abdcSjv #endif /* _KERNEL && !_BOOT */ 1467c478bd9Sstevel@tonic-gate } 147