diff options
Diffstat (limited to '')
| -rw-r--r-- | src/lib/libc/stdlib/strtoumax.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/src/lib/libc/stdlib/strtoumax.c b/src/lib/libc/stdlib/strtoumax.c deleted file mode 100644 index 348184c1ac..0000000000 --- a/src/lib/libc/stdlib/strtoumax.c +++ /dev/null | |||
| @@ -1,109 +0,0 @@ | |||
| 1 | /* $OpenBSD: strtoumax.c,v 1.4 2017/07/06 16:23:11 millert Exp $ */ | ||
| 2 | /* | ||
| 3 | * Copyright (c) 1992 The Regents of the University of California. | ||
| 4 | * All rights reserved. | ||
| 5 | * | ||
| 6 | * Redistribution and use in source and binary forms, with or without | ||
| 7 | * modification, are permitted provided that the following conditions | ||
| 8 | * are met: | ||
| 9 | * 1. Redistributions of source code must retain the above copyright | ||
| 10 | * notice, this list of conditions and the following disclaimer. | ||
| 11 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 12 | * notice, this list of conditions and the following disclaimer in the | ||
| 13 | * documentation and/or other materials provided with the distribution. | ||
| 14 | * 3. Neither the name of the University nor the names of its contributors | ||
| 15 | * may be used to endorse or promote products derived from this software | ||
| 16 | * without specific prior written permission. | ||
| 17 | * | ||
| 18 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
| 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 28 | * SUCH DAMAGE. | ||
| 29 | */ | ||
| 30 | |||
| 31 | #include <ctype.h> | ||
| 32 | #include <errno.h> | ||
| 33 | #include <inttypes.h> | ||
| 34 | |||
| 35 | /* | ||
| 36 | * Convert a string to a uintmax_t. | ||
| 37 | * | ||
| 38 | * Ignores `locale' stuff. Assumes that the upper and lower case | ||
| 39 | * alphabets and digits are each contiguous. | ||
| 40 | */ | ||
| 41 | uintmax_t | ||
| 42 | strtoumax(const char *nptr, char **endptr, int base) | ||
| 43 | { | ||
| 44 | const char *s; | ||
| 45 | uintmax_t acc, cutoff; | ||
| 46 | int c; | ||
| 47 | int neg, any, cutlim; | ||
| 48 | |||
| 49 | /* | ||
| 50 | * See strtoimax for comments as to the logic used. | ||
| 51 | */ | ||
| 52 | if (base < 0 || base == 1 || base > 36) { | ||
| 53 | if (endptr != 0) | ||
| 54 | *endptr = (char *)nptr; | ||
| 55 | errno = EINVAL; | ||
| 56 | return 0; | ||
| 57 | } | ||
| 58 | |||
| 59 | s = nptr; | ||
| 60 | do { | ||
| 61 | c = (unsigned char) *s++; | ||
| 62 | } while (isspace(c)); | ||
| 63 | if (c == '-') { | ||
| 64 | neg = 1; | ||
| 65 | c = *s++; | ||
| 66 | } else { | ||
| 67 | neg = 0; | ||
| 68 | if (c == '+') | ||
| 69 | c = *s++; | ||
| 70 | } | ||
| 71 | if ((base == 0 || base == 16) && c == '0' && | ||
| 72 | (*s == 'x' || *s == 'X') && isxdigit((unsigned char)s[1])) { | ||
| 73 | c = s[1]; | ||
| 74 | s += 2; | ||
| 75 | base = 16; | ||
| 76 | } | ||
| 77 | if (base == 0) | ||
| 78 | base = c == '0' ? 8 : 10; | ||
| 79 | |||
| 80 | cutoff = UINTMAX_MAX / (uintmax_t)base; | ||
| 81 | cutlim = UINTMAX_MAX % (uintmax_t)base; | ||
| 82 | for (acc = 0, any = 0;; c = (unsigned char) *s++) { | ||
| 83 | if (isdigit(c)) | ||
| 84 | c -= '0'; | ||
| 85 | else if (isalpha(c)) | ||
| 86 | c -= isupper(c) ? 'A' - 10 : 'a' - 10; | ||
| 87 | else | ||
| 88 | break; | ||
| 89 | if (c >= base) | ||
| 90 | break; | ||
| 91 | if (any < 0) | ||
| 92 | continue; | ||
| 93 | if (acc > cutoff || (acc == cutoff && c > cutlim)) { | ||
| 94 | any = -1; | ||
| 95 | acc = UINTMAX_MAX; | ||
| 96 | errno = ERANGE; | ||
| 97 | } else { | ||
| 98 | any = 1; | ||
| 99 | acc *= (uintmax_t)base; | ||
| 100 | acc += c; | ||
| 101 | } | ||
| 102 | } | ||
| 103 | if (neg && any > 0) | ||
| 104 | acc = -acc; | ||
| 105 | if (endptr != 0) | ||
| 106 | *endptr = (char *) (any ? s - 1 : nptr); | ||
| 107 | return (acc); | ||
| 108 | } | ||
| 109 | DEF_STRONG(strtoumax); | ||
