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annotate libtommath/mtest/mpi.h @ 1630:9579377b5f8b

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use strlcpy & strlcat (#74) * refactor checkpubkeyperms() with safe BSD functions fix gcc8 warnings ``` svr-authpubkey.c: In function 'checkpubkeyperms': svr-authpubkey.c:427:2: warning: 'strncat' specified bound 5 equals source length [-Wstringop-overflow=] strncat(filename, "/.ssh", 5); /* strlen("/.ssh") == 5 */ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ svr-authpubkey.c:433:2: warning: 'strncat' specified bound 16 equals source length [-Wstringop-overflow=] strncat(filename, "/authorized_keys", 16); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` see https://www.sudo.ws/todd/papers/strlcpy.html * restore strlcpy in xstrdup see original https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/xmalloc.c?rev=1.16
author François Perrad <francois.perrad@gadz.org>
date Wed, 20 Mar 2019 15:09:19 +0100
parents 60fc6476e044
children
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1 /*
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2 mpi.h
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4 by Michael J. Fromberger <[email protected]>
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5 Copyright (C) 1998 Michael J. Fromberger, All Rights Reserved
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7 Arbitrary precision integer arithmetic library
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8
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60fc6476e044 Update to libtommath v1.0
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9 $Id$
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10 */
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12 #ifndef _H_MPI_
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13 #define _H_MPI_
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15 #include "mpi-config.h"
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17 #define MP_LT -1
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18 #define MP_EQ 0
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19 #define MP_GT 1
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21 #if MP_DEBUG
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22 #undef MP_IOFUNC
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23 #define MP_IOFUNC 1
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24 #endif
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26 #if MP_IOFUNC
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27 #include <stdio.h>
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28 #include <ctype.h>
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29 #endif
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31 #include <limits.h>
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33 #define MP_NEG 1
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34 #define MP_ZPOS 0
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36 /* Included for compatibility... */
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37 #define NEG MP_NEG
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38 #define ZPOS MP_ZPOS
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40 #define MP_OKAY 0 /* no error, all is well */
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41 #define MP_YES 0 /* yes (boolean result) */
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42 #define MP_NO -1 /* no (boolean result) */
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43 #define MP_MEM -2 /* out of memory */
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44 #define MP_RANGE -3 /* argument out of range */
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45 #define MP_BADARG -4 /* invalid parameter */
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46 #define MP_UNDEF -5 /* answer is undefined */
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47 #define MP_LAST_CODE MP_UNDEF
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49 #include "mpi-types.h"
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51 /* Included for compatibility... */
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52 #define DIGIT_BIT MP_DIGIT_BIT
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53 #define DIGIT_MAX MP_DIGIT_MAX
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55 /* Macros for accessing the mp_int internals */
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56 #define SIGN(MP) ((MP)->sign)
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57 #define USED(MP) ((MP)->used)
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58 #define ALLOC(MP) ((MP)->alloc)
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59 #define DIGITS(MP) ((MP)->dp)
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60 #define DIGIT(MP,N) (MP)->dp[(N)]
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62 #if MP_ARGCHK == 1
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63 #define ARGCHK(X,Y) {if(!(X)){return (Y);}}
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64 #elif MP_ARGCHK == 2
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65 #include <assert.h>
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66 #define ARGCHK(X,Y) assert(X)
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67 #else
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68 #define ARGCHK(X,Y) /* */
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69 #endif
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71 /* This defines the maximum I/O base (minimum is 2) */
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72 #define MAX_RADIX 64
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74 typedef struct {
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75 mp_sign sign; /* sign of this quantity */
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76 mp_size alloc; /* how many digits allocated */
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77 mp_size used; /* how many digits used */
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78 mp_digit *dp; /* the digits themselves */
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79 } mp_int;