diff options
Diffstat (limited to 'lib/libuutil/uu_strtoint.c')
| -rw-r--r-- | lib/libuutil/uu_strtoint.c | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/lib/libuutil/uu_strtoint.c b/lib/libuutil/uu_strtoint.c deleted file mode 100644 index 494e0a5b9..000000000 --- a/lib/libuutil/uu_strtoint.c +++ /dev/null @@ -1,300 +0,0 @@ -/* - * 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. - */ - - - -#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); -} |