1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include "libuutil_common.h" 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #include <limits.h> 32*0Sstevel@tonic-gate #include <ctype.h> 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #define MAX_BASE 36 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #define IS_DIGIT(x) ((x) >= '0' && (x) <= '9') 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #define CTOI(x) (((x) >= '0' && (x) <= '9') ? (x) - '0' : \ 39*0Sstevel@tonic-gate ((x) >= 'a' && (x) <= 'z') ? (x) + 10 - 'a' : (x) + 10 - 'A') 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate static int 42*0Sstevel@tonic-gate strtoint(const char *s_arg, uint64_t *out, uint32_t base, int sign) 43*0Sstevel@tonic-gate { 44*0Sstevel@tonic-gate const unsigned char *s = (const unsigned char *)s_arg; 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate uint64_t val = 0; 47*0Sstevel@tonic-gate uint64_t multmax; 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate unsigned c, i; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate int neg = 0; 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate int bad_digit = 0; 54*0Sstevel@tonic-gate int bad_char = 0; 55*0Sstevel@tonic-gate int overflow = 0; 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate if (s == NULL || base == 1 || base > MAX_BASE) { 58*0Sstevel@tonic-gate uu_set_error(UU_ERROR_INVALID_ARGUMENT); 59*0Sstevel@tonic-gate return (-1); 60*0Sstevel@tonic-gate } 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate while ((c = *s) != 0 && isspace(c)) 63*0Sstevel@tonic-gate s++; 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate switch (c) { 66*0Sstevel@tonic-gate case '-': 67*0Sstevel@tonic-gate if (!sign) 68*0Sstevel@tonic-gate overflow = 1; /* becomes underflow below */ 69*0Sstevel@tonic-gate neg = 1; 70*0Sstevel@tonic-gate /*FALLTHRU*/ 71*0Sstevel@tonic-gate case '+': 72*0Sstevel@tonic-gate c = *++s; 73*0Sstevel@tonic-gate break; 74*0Sstevel@tonic-gate default: 75*0Sstevel@tonic-gate break; 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate if (c == '\0') { 79*0Sstevel@tonic-gate uu_set_error(UU_ERROR_EMPTY); 80*0Sstevel@tonic-gate return (-1); 81*0Sstevel@tonic-gate } 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate if (base == 0) { 84*0Sstevel@tonic-gate if (c != '0') 85*0Sstevel@tonic-gate base = 10; 86*0Sstevel@tonic-gate else if (s[1] == 'x' || s[1] == 'X') 87*0Sstevel@tonic-gate base = 16; 88*0Sstevel@tonic-gate else 89*0Sstevel@tonic-gate base = 8; 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate if (base == 16 && c == '0' && (s[1] == 'x' || s[1] == 'X')) 93*0Sstevel@tonic-gate c = *(s += 2); 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate if ((val = CTOI(c)) >= base) { 96*0Sstevel@tonic-gate if (IS_DIGIT(c)) 97*0Sstevel@tonic-gate bad_digit = 1; 98*0Sstevel@tonic-gate else 99*0Sstevel@tonic-gate bad_char = 1; 100*0Sstevel@tonic-gate val = 0; 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate multmax = (uint64_t)UINT64_MAX / (uint64_t)base; 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate for (c = *++s; c != '\0'; c = *++s) { 106*0Sstevel@tonic-gate if ((i = CTOI(c)) >= base) { 107*0Sstevel@tonic-gate if (isspace(c)) 108*0Sstevel@tonic-gate break; 109*0Sstevel@tonic-gate if (IS_DIGIT(c)) 110*0Sstevel@tonic-gate bad_digit = 1; 111*0Sstevel@tonic-gate else 112*0Sstevel@tonic-gate bad_char = 1; 113*0Sstevel@tonic-gate i = 0; 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate if (val > multmax) 117*0Sstevel@tonic-gate overflow = 1; 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate val *= base; 120*0Sstevel@tonic-gate if ((uint64_t)UINT64_MAX - val < (uint64_t)i) 121*0Sstevel@tonic-gate overflow = 1; 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate val += i; 124*0Sstevel@tonic-gate } 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate while ((c = *s) != 0) { 127*0Sstevel@tonic-gate if (!isspace(c)) 128*0Sstevel@tonic-gate bad_char = 1; 129*0Sstevel@tonic-gate s++; 130*0Sstevel@tonic-gate } 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if (sign) { 133*0Sstevel@tonic-gate if (neg) { 134*0Sstevel@tonic-gate if (val > -(uint64_t)INT64_MIN) 135*0Sstevel@tonic-gate overflow = 1; 136*0Sstevel@tonic-gate } else { 137*0Sstevel@tonic-gate if (val > INT64_MAX) 138*0Sstevel@tonic-gate overflow = 1; 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate if (neg) 143*0Sstevel@tonic-gate val = -val; 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate if (bad_char | bad_digit | overflow) { 146*0Sstevel@tonic-gate if (bad_char) 147*0Sstevel@tonic-gate uu_set_error(UU_ERROR_INVALID_CHAR); 148*0Sstevel@tonic-gate else if (bad_digit) 149*0Sstevel@tonic-gate uu_set_error(UU_ERROR_INVALID_DIGIT); 150*0Sstevel@tonic-gate else if (overflow) { 151*0Sstevel@tonic-gate if (neg) 152*0Sstevel@tonic-gate uu_set_error(UU_ERROR_UNDERFLOW); 153*0Sstevel@tonic-gate else 154*0Sstevel@tonic-gate uu_set_error(UU_ERROR_OVERFLOW); 155*0Sstevel@tonic-gate } 156*0Sstevel@tonic-gate return (-1); 157*0Sstevel@tonic-gate } 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate *out = val; 160*0Sstevel@tonic-gate return (0); 161*0Sstevel@tonic-gate } 162*0Sstevel@tonic-gate 163*0Sstevel@tonic-gate int 164*0Sstevel@tonic-gate uu_strtoint(const char *s, void *v, size_t sz, int base, 165*0Sstevel@tonic-gate int64_t min, int64_t max) 166*0Sstevel@tonic-gate { 167*0Sstevel@tonic-gate uint64_t val_u; 168*0Sstevel@tonic-gate int64_t val; 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate if (min > max) 171*0Sstevel@tonic-gate goto bad_argument; 172*0Sstevel@tonic-gate 173*0Sstevel@tonic-gate switch (sz) { 174*0Sstevel@tonic-gate case 1: 175*0Sstevel@tonic-gate if (max > INT8_MAX || min < INT8_MIN) 176*0Sstevel@tonic-gate goto bad_argument; 177*0Sstevel@tonic-gate break; 178*0Sstevel@tonic-gate case 2: 179*0Sstevel@tonic-gate if (max > INT16_MAX || min < INT16_MIN) 180*0Sstevel@tonic-gate goto bad_argument; 181*0Sstevel@tonic-gate break; 182*0Sstevel@tonic-gate case 4: 183*0Sstevel@tonic-gate if (max > INT32_MAX || min < INT32_MIN) 184*0Sstevel@tonic-gate goto bad_argument; 185*0Sstevel@tonic-gate break; 186*0Sstevel@tonic-gate case 8: 187*0Sstevel@tonic-gate if (max > INT64_MAX || min < INT64_MIN) 188*0Sstevel@tonic-gate goto bad_argument; 189*0Sstevel@tonic-gate break; 190*0Sstevel@tonic-gate default: 191*0Sstevel@tonic-gate goto bad_argument; 192*0Sstevel@tonic-gate } 193*0Sstevel@tonic-gate 194*0Sstevel@tonic-gate if (min == 0 && max == 0) { 195*0Sstevel@tonic-gate min = -(1ULL << (8 * sz - 1)); 196*0Sstevel@tonic-gate max = (1ULL << (8 * sz - 1)) - 1; 197*0Sstevel@tonic-gate } 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate if (strtoint(s, &val_u, base, 1) == -1) 200*0Sstevel@tonic-gate return (-1); 201*0Sstevel@tonic-gate 202*0Sstevel@tonic-gate val = (int64_t)val_u; 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate if (val < min) { 205*0Sstevel@tonic-gate uu_set_error(UU_ERROR_UNDERFLOW); 206*0Sstevel@tonic-gate return (-1); 207*0Sstevel@tonic-gate } else if (val > max) { 208*0Sstevel@tonic-gate uu_set_error(UU_ERROR_OVERFLOW); 209*0Sstevel@tonic-gate return (-1); 210*0Sstevel@tonic-gate } 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate switch (sz) { 213*0Sstevel@tonic-gate case 1: 214*0Sstevel@tonic-gate *(int8_t *)v = val; 215*0Sstevel@tonic-gate return (0); 216*0Sstevel@tonic-gate case 2: 217*0Sstevel@tonic-gate *(int16_t *)v = val; 218*0Sstevel@tonic-gate return (0); 219*0Sstevel@tonic-gate case 4: 220*0Sstevel@tonic-gate *(int32_t *)v = val; 221*0Sstevel@tonic-gate return (0); 222*0Sstevel@tonic-gate case 8: 223*0Sstevel@tonic-gate *(int64_t *)v = val; 224*0Sstevel@tonic-gate return (0); 225*0Sstevel@tonic-gate default: 226*0Sstevel@tonic-gate break; /* fall through to bad_argument */ 227*0Sstevel@tonic-gate } 228*0Sstevel@tonic-gate 229*0Sstevel@tonic-gate bad_argument: 230*0Sstevel@tonic-gate uu_set_error(UU_ERROR_INVALID_ARGUMENT); 231*0Sstevel@tonic-gate return (-1); 232*0Sstevel@tonic-gate } 233*0Sstevel@tonic-gate 234*0Sstevel@tonic-gate int 235*0Sstevel@tonic-gate uu_strtouint(const char *s, void *v, size_t sz, int base, 236*0Sstevel@tonic-gate uint64_t min, uint64_t max) 237*0Sstevel@tonic-gate { 238*0Sstevel@tonic-gate uint64_t val; 239*0Sstevel@tonic-gate 240*0Sstevel@tonic-gate if (min > max) 241*0Sstevel@tonic-gate goto bad_argument; 242*0Sstevel@tonic-gate 243*0Sstevel@tonic-gate switch (sz) { 244*0Sstevel@tonic-gate case 1: 245*0Sstevel@tonic-gate if (max > UINT8_MAX) 246*0Sstevel@tonic-gate goto bad_argument; 247*0Sstevel@tonic-gate break; 248*0Sstevel@tonic-gate case 2: 249*0Sstevel@tonic-gate if (max > UINT16_MAX) 250*0Sstevel@tonic-gate goto bad_argument; 251*0Sstevel@tonic-gate break; 252*0Sstevel@tonic-gate case 4: 253*0Sstevel@tonic-gate if (max > UINT32_MAX) 254*0Sstevel@tonic-gate goto bad_argument; 255*0Sstevel@tonic-gate break; 256*0Sstevel@tonic-gate case 8: 257*0Sstevel@tonic-gate if (max > UINT64_MAX) 258*0Sstevel@tonic-gate goto bad_argument; 259*0Sstevel@tonic-gate break; 260*0Sstevel@tonic-gate default: 261*0Sstevel@tonic-gate goto bad_argument; 262*0Sstevel@tonic-gate } 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate if (min == 0 && max == 0) { 265*0Sstevel@tonic-gate /* we have to be careful, since << can overflow */ 266*0Sstevel@tonic-gate max = (1ULL << (8 * sz - 1)) * 2 - 1; 267*0Sstevel@tonic-gate } 268*0Sstevel@tonic-gate 269*0Sstevel@tonic-gate if (strtoint(s, &val, base, 0) == -1) 270*0Sstevel@tonic-gate return (-1); 271*0Sstevel@tonic-gate 272*0Sstevel@tonic-gate if (val < min) { 273*0Sstevel@tonic-gate uu_set_error(UU_ERROR_UNDERFLOW); 274*0Sstevel@tonic-gate return (-1); 275*0Sstevel@tonic-gate } else if (val > max) { 276*0Sstevel@tonic-gate uu_set_error(UU_ERROR_OVERFLOW); 277*0Sstevel@tonic-gate return (-1); 278*0Sstevel@tonic-gate } 279*0Sstevel@tonic-gate 280*0Sstevel@tonic-gate switch (sz) { 281*0Sstevel@tonic-gate case 1: 282*0Sstevel@tonic-gate *(uint8_t *)v = val; 283*0Sstevel@tonic-gate return (0); 284*0Sstevel@tonic-gate case 2: 285*0Sstevel@tonic-gate *(uint16_t *)v = val; 286*0Sstevel@tonic-gate return (0); 287*0Sstevel@tonic-gate case 4: 288*0Sstevel@tonic-gate *(uint32_t *)v = val; 289*0Sstevel@tonic-gate return (0); 290*0Sstevel@tonic-gate case 8: 291*0Sstevel@tonic-gate *(uint64_t *)v = val; 292*0Sstevel@tonic-gate return (0); 293*0Sstevel@tonic-gate default: 294*0Sstevel@tonic-gate break; /* shouldn't happen, fall through */ 295*0Sstevel@tonic-gate } 296*0Sstevel@tonic-gate 297*0Sstevel@tonic-gate bad_argument: 298*0Sstevel@tonic-gate uu_set_error(UU_ERROR_INVALID_ARGUMENT); 299*0Sstevel@tonic-gate return (-1); 300*0Sstevel@tonic-gate } 301