4.1155-freebsd-126-freebsd-12freebsd-9.3
Last change
on this file since f244de9 was
bceabc9,
checked in by Sebastian Huber <sebastian.huber@…>, on 10/09/13 at 20:42:09
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Move files to match FreeBSD layout
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Property mode set to
100644
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File size:
1.8 KB
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1 | /*- |
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2 | * Copyright (c) 2004 Ted Unangst and Todd Miller |
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3 | * All rights reserved. |
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4 | * |
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5 | * Permission to use, copy, modify, and distribute this software for any |
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6 | * purpose with or without fee is hereby granted, provided that the above |
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7 | * copyright notice and this permission notice appear in all copies. |
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8 | * |
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9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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16 | * |
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17 | * $OpenBSD: strtonum.c,v 1.6 2004/08/03 19:38:01 millert Exp $ |
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18 | */ |
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19 | |
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20 | #include <sys/cdefs.h> |
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21 | __FBSDID("$FreeBSD$"); |
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22 | |
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23 | #include <errno.h> |
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24 | #include <limits.h> |
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25 | #include <stdlib.h> |
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26 | |
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27 | #define INVALID 1 |
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28 | #define TOOSMALL 2 |
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29 | #define TOOLARGE 3 |
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30 | |
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31 | long long |
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32 | strtonum(const char *numstr, long long minval, long long maxval, |
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33 | const char **errstrp) |
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34 | { |
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35 | long long ll = 0; |
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36 | char *ep; |
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37 | int error = 0; |
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38 | struct errval { |
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39 | const char *errstr; |
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40 | int err; |
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41 | } ev[4] = { |
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42 | { NULL, 0 }, |
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43 | { "invalid", EINVAL }, |
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44 | { "too small", ERANGE }, |
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45 | { "too large", ERANGE }, |
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46 | }; |
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47 | |
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48 | ev[0].err = errno; |
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49 | errno = 0; |
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50 | if (minval > maxval) |
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51 | error = INVALID; |
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52 | else { |
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53 | ll = strtoll(numstr, &ep, 10); |
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54 | if (errno == EINVAL || numstr == ep || *ep != '\0') |
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55 | error = INVALID; |
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56 | else if ((ll == LLONG_MIN && errno == ERANGE) || ll < minval) |
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57 | error = TOOSMALL; |
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58 | else if ((ll == LLONG_MAX && errno == ERANGE) || ll > maxval) |
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59 | error = TOOLARGE; |
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60 | } |
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61 | if (errstrp != NULL) |
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62 | *errstrp = ev[error].errstr; |
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63 | errno = ev[error].err; |
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64 | if (error) |
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65 | ll = 0; |
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66 | |
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67 | return (ll); |
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68 | } |
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