Mercurial > dropbear

annotate libtomcrypt/src/pk/asn1/der/ia5/der_encode_ia5_string.c @ 1156:a8f4dade70e5

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avoid getpass when not used some systems (like android's bionic) do not provide getpass. you can disable ENABLE_CLI_PASSWORD_AUTH & ENABLE_CLI_INTERACT_AUTH to avoid its use (and rely on pubkey auth), but the link still fails because the support file calls getpass. do not define this func if both of those auth methods are not used.
author Mike Frysinger <vapier@gentoo.org>
date Wed, 21 Oct 2015 22:39:55 +0800
parents 0cbe8f6dbf9e
children f849a5ca2efc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.com
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10 */
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11 #include "tomcrypt.h"
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12
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13 /**
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14 @file der_encode_ia5_string.c
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15 ASN.1 DER, encode a IA5 STRING, Tom St Denis
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16 */
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17
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18 #ifdef LTC_DER
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19
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20 /**
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21 Store an IA5 STRING
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22 @param in The array of IA5 to store (one per char)
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23 @param inlen The number of IA5 to store
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24 @param out [out] The destination for the DER encoded IA5 STRING
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25 @param outlen [in/out] The max size and resulting size of the DER IA5 STRING
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26 @return CRYPT_OK if successful
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27 */
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28 int der_encode_ia5_string(const unsigned char *in, unsigned long inlen,
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29 unsigned char *out, unsigned long *outlen)
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30 {
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31 unsigned long x, y, len;
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32 int err;
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33
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34 LTC_ARGCHK(in != NULL);
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35 LTC_ARGCHK(out != NULL);
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36 LTC_ARGCHK(outlen != NULL);
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37
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38 /* get the size */
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39 if ((err = der_length_ia5_string(in, inlen, &len)) != CRYPT_OK) {
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40 return err;
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41 }
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42
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43 /* too big? */
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44 if (len > *outlen) {
382
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45 *outlen = len;
285
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46 return CRYPT_BUFFER_OVERFLOW;
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47 }
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48
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49 /* encode the header+len */
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50 x = 0;
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51 out[x++] = 0x16;
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52 if (inlen < 128) {
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53 out[x++] = (unsigned char)inlen;
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54 } else if (inlen < 256) {
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55 out[x++] = 0x81;
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56 out[x++] = (unsigned char)inlen;
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57 } else if (inlen < 65536UL) {
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58 out[x++] = 0x82;
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59 out[x++] = (unsigned char)((inlen>>8)&255);
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60 out[x++] = (unsigned char)(inlen&255);
285
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61 } else if (inlen < 16777216UL) {
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62 out[x++] = 0x83;
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63 out[x++] = (unsigned char)((inlen>>16)&255);
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64 out[x++] = (unsigned char)((inlen>>8)&255);
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65 out[x++] = (unsigned char)(inlen&255);
285
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66 } else {
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67 return CRYPT_INVALID_ARG;
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68 }
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69
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70 /* store octets */
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71 for (y = 0; y < inlen; y++) {
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72 out[x++] = der_ia5_char_encode(in[y]);
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73 }
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74
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75 /* retun length */
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76 *outlen = x;
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77
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78 return CRYPT_OK;
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79 }
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80
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81 #endif
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82
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83 /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/ia5/der_encode_ia5_string.c,v $ */
382
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84 /* $Revision: 1.4 $ */
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85 /* $Date: 2006/12/04 21:34:03 $ */