PolarSSL v1.1.4
error.c
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1 /*
2  * Error message information
3  *
4  * Copyright (C) 2006-2010, Brainspark B.V.
5  *
6  * This file is part of PolarSSL (http://www.polarssl.org)
7  * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
8  *
9  * All rights reserved.
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License along
22  * with this program; if not, write to the Free Software Foundation, Inc.,
23  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24  */
25 
26 #include "polarssl/config.h"
27 
28 #if defined(POLARSSL_ERROR_C)
29 
30 #if defined(POLARSSL_AES_C)
31 #include "polarssl/aes.h"
32 #endif
33 
34 #if defined(POLARSSL_BASE64_C)
35 #include "polarssl/base64.h"
36 #endif
37 
38 #if defined(POLARSSL_BIGNUM_C)
39 #include "polarssl/bignum.h"
40 #endif
41 
42 #if defined(POLARSSL_CAMELLIA_C)
43 #include "polarssl/camellia.h"
44 #endif
45 
46 #if defined(POLARSSL_CIPHER_C)
47 #include "polarssl/cipher.h"
48 #endif
49 
50 #if defined(POLARSSL_CTR_DRBG_C)
51 #include "polarssl/ctr_drbg.h"
52 #endif
53 
54 #if defined(POLARSSL_DES_C)
55 #include "polarssl/des.h"
56 #endif
57 
58 #if defined(POLARSSL_DHM_C)
59 #include "polarssl/dhm.h"
60 #endif
61 
62 #if defined(POLARSSL_ENTROPY_C)
63 #include "polarssl/entropy.h"
64 #endif
65 
66 #if defined(POLARSSL_MD_C)
67 #include "polarssl/md.h"
68 #endif
69 
70 #if defined(POLARSSL_MD2_C)
71 #include "polarssl/md2.h"
72 #endif
73 
74 #if defined(POLARSSL_MD4_C)
75 #include "polarssl/md4.h"
76 #endif
77 
78 #if defined(POLARSSL_MD5_C)
79 #include "polarssl/md5.h"
80 #endif
81 
82 #if defined(POLARSSL_NET_C)
83 #include "polarssl/net.h"
84 #endif
85 
86 #if defined(POLARSSL_PADLOCK_C)
87 #include "polarssl/padlock.h"
88 #endif
89 
90 #if defined(POLARSSL_PEM_C)
91 #include "polarssl/pem.h"
92 #endif
93 
94 #if defined(POLARSSL_RSA_C)
95 #include "polarssl/rsa.h"
96 #endif
97 
98 #if defined(POLARSSL_SHA1_C)
99 #include "polarssl/sha1.h"
100 #endif
101 
102 #if defined(POLARSSL_SHA2_C)
103 #include "polarssl/sha2.h"
104 #endif
105 
106 #if defined(POLARSSL_SHA4_C)
107 #include "polarssl/sha4.h"
108 #endif
109 
110 #if defined(POLARSSL_SSL_TLS_C)
111 #include "polarssl/ssl.h"
112 #endif
113 
114 #if defined(POLARSSL_X509_PARSE_C)
115 #include "polarssl/x509.h"
116 #endif
117 
118 #if defined(POLARSSL_XTEA_C)
119 #include "polarssl/xtea.h"
120 #endif
121 
122 
123 #include <string.h>
124 
125 #if defined _MSC_VER && !defined snprintf
126 #define snprintf _snprintf
127 #endif
128 
129 void error_strerror( int ret, char *buf, size_t buflen )
130 {
131  size_t len;
132  int use_ret;
133 
134  memset( buf, 0x00, buflen );
135 
136  if( ret < 0 )
137  ret = -ret;
138 
139  if( ret & 0xFF80 )
140  {
141  use_ret = ret & 0xFF80;
142 
143  // High level error codes
144  //
145 #if defined(POLARSSL_CIPHER_C)
146  if( use_ret == -(POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE) )
147  snprintf( buf, buflen, "CIPHER - The selected feature is not available" );
148  if( use_ret == -(POLARSSL_ERR_CIPHER_BAD_INPUT_DATA) )
149  snprintf( buf, buflen, "CIPHER - Bad input parameters to function" );
150  if( use_ret == -(POLARSSL_ERR_CIPHER_ALLOC_FAILED) )
151  snprintf( buf, buflen, "CIPHER - Failed to allocate memory" );
152  if( use_ret == -(POLARSSL_ERR_CIPHER_INVALID_PADDING) )
153  snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" );
154  if( use_ret == -(POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED) )
155  snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" );
156 #endif /* POLARSSL_CIPHER_C */
157 
158 #if defined(POLARSSL_DHM_C)
159  if( use_ret == -(POLARSSL_ERR_DHM_BAD_INPUT_DATA) )
160  snprintf( buf, buflen, "DHM - Bad input parameters to function" );
161  if( use_ret == -(POLARSSL_ERR_DHM_READ_PARAMS_FAILED) )
162  snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" );
163  if( use_ret == -(POLARSSL_ERR_DHM_MAKE_PARAMS_FAILED) )
164  snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" );
165  if( use_ret == -(POLARSSL_ERR_DHM_READ_PUBLIC_FAILED) )
166  snprintf( buf, buflen, "DHM - Reading of the public values failed" );
167  if( use_ret == -(POLARSSL_ERR_DHM_MAKE_PUBLIC_FAILED) )
168  snprintf( buf, buflen, "DHM - Makeing of the public value failed" );
169  if( use_ret == -(POLARSSL_ERR_DHM_CALC_SECRET_FAILED) )
170  snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" );
171 #endif /* POLARSSL_DHM_C */
172 
173 #if defined(POLARSSL_MD_C)
174  if( use_ret == -(POLARSSL_ERR_MD_FEATURE_UNAVAILABLE) )
175  snprintf( buf, buflen, "MD - The selected feature is not available" );
176  if( use_ret == -(POLARSSL_ERR_MD_BAD_INPUT_DATA) )
177  snprintf( buf, buflen, "MD - Bad input parameters to function" );
178  if( use_ret == -(POLARSSL_ERR_MD_ALLOC_FAILED) )
179  snprintf( buf, buflen, "MD - Failed to allocate memory" );
180  if( use_ret == -(POLARSSL_ERR_MD_FILE_IO_ERROR) )
181  snprintf( buf, buflen, "MD - Opening or reading of file failed" );
182 #endif /* POLARSSL_MD_C */
183 
184 #if defined(POLARSSL_PEM_C)
185  if( use_ret == -(POLARSSL_ERR_PEM_NO_HEADER_PRESENT) )
186  snprintf( buf, buflen, "PEM - No PEM header found" );
187  if( use_ret == -(POLARSSL_ERR_PEM_INVALID_DATA) )
188  snprintf( buf, buflen, "PEM - PEM string is not as expected" );
189  if( use_ret == -(POLARSSL_ERR_PEM_MALLOC_FAILED) )
190  snprintf( buf, buflen, "PEM - Failed to allocate memory" );
191  if( use_ret == -(POLARSSL_ERR_PEM_INVALID_ENC_IV) )
192  snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" );
193  if( use_ret == -(POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG) )
194  snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" );
195  if( use_ret == -(POLARSSL_ERR_PEM_PASSWORD_REQUIRED) )
196  snprintf( buf, buflen, "PEM - Private key password can't be empty" );
197  if( use_ret == -(POLARSSL_ERR_PEM_PASSWORD_MISMATCH) )
198  snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" );
199  if( use_ret == -(POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE) )
200  snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" );
201 #endif /* POLARSSL_PEM_C */
202 
203 #if defined(POLARSSL_RSA_C)
204  if( use_ret == -(POLARSSL_ERR_RSA_BAD_INPUT_DATA) )
205  snprintf( buf, buflen, "RSA - Bad input parameters to function" );
206  if( use_ret == -(POLARSSL_ERR_RSA_INVALID_PADDING) )
207  snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" );
208  if( use_ret == -(POLARSSL_ERR_RSA_KEY_GEN_FAILED) )
209  snprintf( buf, buflen, "RSA - Something failed during generation of a key" );
210  if( use_ret == -(POLARSSL_ERR_RSA_KEY_CHECK_FAILED) )
211  snprintf( buf, buflen, "RSA - Key failed to pass the libraries validity check" );
212  if( use_ret == -(POLARSSL_ERR_RSA_PUBLIC_FAILED) )
213  snprintf( buf, buflen, "RSA - The public key operation failed" );
214  if( use_ret == -(POLARSSL_ERR_RSA_PRIVATE_FAILED) )
215  snprintf( buf, buflen, "RSA - The private key operation failed" );
216  if( use_ret == -(POLARSSL_ERR_RSA_VERIFY_FAILED) )
217  snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" );
218  if( use_ret == -(POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE) )
219  snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" );
220  if( use_ret == -(POLARSSL_ERR_RSA_RNG_FAILED) )
221  snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" );
222 #endif /* POLARSSL_RSA_C */
223 
224 #if defined(POLARSSL_SSL_TLS_C)
225  if( use_ret == -(POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE) )
226  snprintf( buf, buflen, "SSL - The requested feature is not available" );
227  if( use_ret == -(POLARSSL_ERR_SSL_BAD_INPUT_DATA) )
228  snprintf( buf, buflen, "SSL - Bad input parameters to function" );
229  if( use_ret == -(POLARSSL_ERR_SSL_INVALID_MAC) )
230  snprintf( buf, buflen, "SSL - Verification of the message MAC failed" );
231  if( use_ret == -(POLARSSL_ERR_SSL_INVALID_RECORD) )
232  snprintf( buf, buflen, "SSL - An invalid SSL record was received" );
233  if( use_ret == -(POLARSSL_ERR_SSL_CONN_EOF) )
234  snprintf( buf, buflen, "SSL - The connection indicated an EOF" );
235  if( use_ret == -(POLARSSL_ERR_SSL_UNKNOWN_CIPHER) )
236  snprintf( buf, buflen, "SSL - An unknown cipher was received" );
237  if( use_ret == -(POLARSSL_ERR_SSL_NO_CIPHER_CHOSEN) )
238  snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" );
239  if( use_ret == -(POLARSSL_ERR_SSL_NO_SESSION_FOUND) )
240  snprintf( buf, buflen, "SSL - No session to recover was found" );
241  if( use_ret == -(POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE) )
242  snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" );
243  if( use_ret == -(POLARSSL_ERR_SSL_CERTIFICATE_TOO_LARGE) )
244  snprintf( buf, buflen, "SSL - DESCRIPTION MISSING" );
245  if( use_ret == -(POLARSSL_ERR_SSL_CERTIFICATE_REQUIRED) )
246  snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" );
247  if( use_ret == -(POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED) )
248  snprintf( buf, buflen, "SSL - The own private key is not set, but needed" );
249  if( use_ret == -(POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED) )
250  snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" );
251  if( use_ret == -(POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE) )
252  snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" );
253  if( use_ret == -(POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE) )
254  snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" );
255  if( use_ret == -(POLARSSL_ERR_SSL_PEER_VERIFY_FAILED) )
256  snprintf( buf, buflen, "SSL - Verification of our peer failed" );
257  if( use_ret == -(POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY) )
258  snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" );
259  if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO) )
260  snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" );
261  if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO) )
262  snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" );
263  if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE) )
264  snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" );
266  snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" );
268  snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" );
270  snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" );
272  snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" );
274  snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM Read Public" );
276  snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM Calculate Secret" );
278  snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" );
280  snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" );
281  if( use_ret == -(POLARSSL_ERR_SSL_BAD_HS_FINISHED) )
282  snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" );
283  if( use_ret == -(POLARSSL_ERR_SSL_MALLOC_FAILED) )
284  snprintf( buf, buflen, "SSL - Memory allocation failed" );
285 #endif /* POLARSSL_SSL_TLS_C */
286 
287 #if defined(POLARSSL_X509_PARSE_C)
288  if( use_ret == -(POLARSSL_ERR_X509_FEATURE_UNAVAILABLE) )
289  snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" );
290  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_PEM) )
291  snprintf( buf, buflen, "X509 - The PEM-encoded certificate contains invalid elements, e.g. invalid character" );
292  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_FORMAT) )
293  snprintf( buf, buflen, "X509 - The certificate format is invalid, e.g. different type expected" );
294  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_VERSION) )
295  snprintf( buf, buflen, "X509 - The certificate version element is invalid" );
296  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_SERIAL) )
297  snprintf( buf, buflen, "X509 - The serial tag or value is invalid" );
298  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_ALG) )
299  snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" );
300  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_NAME) )
301  snprintf( buf, buflen, "X509 - The name tag or value is invalid" );
302  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_DATE) )
303  snprintf( buf, buflen, "X509 - The date tag or value is invalid" );
304  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_PUBKEY) )
305  snprintf( buf, buflen, "X509 - The pubkey tag or value is invalid (only RSA is supported)" );
306  if( use_ret == -(POLARSSL_ERR_X509_CERT_INVALID_SIGNATURE) )
307  snprintf( buf, buflen, "X509 - The signature tag or value invalid" );
309  snprintf( buf, buflen, "X509 - The extension tag or value is invalid" );
310  if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_VERSION) )
311  snprintf( buf, buflen, "X509 - Certificate or CRL has an unsupported version number" );
312  if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_SIG_ALG) )
313  snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" );
314  if( use_ret == -(POLARSSL_ERR_X509_UNKNOWN_PK_ALG) )
315  snprintf( buf, buflen, "X509 - Key algorithm is unsupported (only RSA is supported)" );
316  if( use_ret == -(POLARSSL_ERR_X509_CERT_SIG_MISMATCH) )
317  snprintf( buf, buflen, "X509 - Certificate signature algorithms do not match. (see \\c ::x509_cert sig_oid)" );
318  if( use_ret == -(POLARSSL_ERR_X509_CERT_VERIFY_FAILED) )
319  snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" );
320  if( use_ret == -(POLARSSL_ERR_X509_KEY_INVALID_VERSION) )
321  snprintf( buf, buflen, "X509 - Unsupported RSA key version" );
322  if( use_ret == -(POLARSSL_ERR_X509_KEY_INVALID_FORMAT) )
323  snprintf( buf, buflen, "X509 - Invalid RSA key tag or value" );
324  if( use_ret == -(POLARSSL_ERR_X509_CERT_UNKNOWN_FORMAT) )
325  snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" );
326  if( use_ret == -(POLARSSL_ERR_X509_INVALID_INPUT) )
327  snprintf( buf, buflen, "X509 - Input invalid" );
328  if( use_ret == -(POLARSSL_ERR_X509_MALLOC_FAILED) )
329  snprintf( buf, buflen, "X509 - Allocation of memory failed" );
330  if( use_ret == -(POLARSSL_ERR_X509_FILE_IO_ERROR) )
331  snprintf( buf, buflen, "X509 - Read/write of file failed" );
332 #endif /* POLARSSL_X509_PARSE_C */
333 
334  if( strlen( buf ) == 0 )
335  snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
336  }
337 
338  use_ret = ret & ~0xFF80;
339 
340  if( use_ret == 0 )
341  return;
342 
343  // If high level code is present, make a concatenation between both
344  // error strings.
345  //
346  len = strlen( buf );
347 
348  if( len > 0 )
349  {
350  if( buflen - len < 5 )
351  return;
352 
353  snprintf( buf + len, buflen - len, " : " );
354 
355  buf += len + 3;
356  buflen -= len + 3;
357  }
358 
359  // Low level error codes
360  //
361 #if defined(POLARSSL_AES_C)
362  if( use_ret == -(POLARSSL_ERR_AES_INVALID_KEY_LENGTH) )
363  snprintf( buf, buflen, "AES - Invalid key length" );
364  if( use_ret == -(POLARSSL_ERR_AES_INVALID_INPUT_LENGTH) )
365  snprintf( buf, buflen, "AES - Invalid data input length" );
366 #endif /* POLARSSL_AES_C */
367 
368 #if defined(POLARSSL_ASN1_PARSE_C)
369  if( use_ret == -(POLARSSL_ERR_ASN1_OUT_OF_DATA) )
370  snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" );
371  if( use_ret == -(POLARSSL_ERR_ASN1_UNEXPECTED_TAG) )
372  snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" );
373  if( use_ret == -(POLARSSL_ERR_ASN1_INVALID_LENGTH) )
374  snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" );
375  if( use_ret == -(POLARSSL_ERR_ASN1_LENGTH_MISMATCH) )
376  snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" );
377  if( use_ret == -(POLARSSL_ERR_ASN1_INVALID_DATA) )
378  snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" );
379  if( use_ret == -(POLARSSL_ERR_ASN1_MALLOC_FAILED) )
380  snprintf( buf, buflen, "ASN1 - Memory allocation failed" );
381 #endif /* POLARSSL_ASN1_PARSE_C */
382 
383 #if defined(POLARSSL_BASE64_C)
384  if( use_ret == -(POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL) )
385  snprintf( buf, buflen, "BASE64 - Output buffer too small" );
386  if( use_ret == -(POLARSSL_ERR_BASE64_INVALID_CHARACTER) )
387  snprintf( buf, buflen, "BASE64 - Invalid character in input" );
388 #endif /* POLARSSL_BASE64_C */
389 
390 #if defined(POLARSSL_BIGNUM_C)
391  if( use_ret == -(POLARSSL_ERR_MPI_FILE_IO_ERROR) )
392  snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" );
393  if( use_ret == -(POLARSSL_ERR_MPI_BAD_INPUT_DATA) )
394  snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" );
395  if( use_ret == -(POLARSSL_ERR_MPI_INVALID_CHARACTER) )
396  snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" );
397  if( use_ret == -(POLARSSL_ERR_MPI_BUFFER_TOO_SMALL) )
398  snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" );
399  if( use_ret == -(POLARSSL_ERR_MPI_NEGATIVE_VALUE) )
400  snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" );
401  if( use_ret == -(POLARSSL_ERR_MPI_DIVISION_BY_ZERO) )
402  snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" );
403  if( use_ret == -(POLARSSL_ERR_MPI_NOT_ACCEPTABLE) )
404  snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" );
405  if( use_ret == -(POLARSSL_ERR_MPI_MALLOC_FAILED) )
406  snprintf( buf, buflen, "BIGNUM - Memory allocation failed" );
407 #endif /* POLARSSL_BIGNUM_C */
408 
409 #if defined(POLARSSL_CAMELLIA_C)
410  if( use_ret == -(POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH) )
411  snprintf( buf, buflen, "CAMELLIA - Invalid key length" );
413  snprintf( buf, buflen, "CAMELLIA - Invalid data input length" );
414 #endif /* POLARSSL_CAMELLIA_C */
415 
416 #if defined(POLARSSL_CTR_DRBG_C)
418  snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" );
419  if( use_ret == -(POLARSSL_ERR_CTR_DRBG_REQUEST_TOO_BIG) )
420  snprintf( buf, buflen, "CTR_DRBG - Too many random requested in single call" );
421  if( use_ret == -(POLARSSL_ERR_CTR_DRBG_INPUT_TOO_BIG) )
422  snprintf( buf, buflen, "CTR_DRBG - Input too large (Entropy + additional)" );
423  if( use_ret == -(POLARSSL_ERR_CTR_DRBG_FILE_IO_ERROR) )
424  snprintf( buf, buflen, "CTR_DRBG - Read/write error in file" );
425 #endif /* POLARSSL_CTR_DRBG_C */
426 
427 #if defined(POLARSSL_DES_C)
428  if( use_ret == -(POLARSSL_ERR_DES_INVALID_INPUT_LENGTH) )
429  snprintf( buf, buflen, "DES - The data input has an invalid length" );
430 #endif /* POLARSSL_DES_C */
431 
432 #if defined(POLARSSL_ENTROPY_C)
433  if( use_ret == -(POLARSSL_ERR_ENTROPY_SOURCE_FAILED) )
434  snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" );
435  if( use_ret == -(POLARSSL_ERR_ENTROPY_MAX_SOURCES) )
436  snprintf( buf, buflen, "ENTROPY - No more sources can be added" );
437  if( use_ret == -(POLARSSL_ERR_ENTROPY_NO_SOURCES_DEFINED) )
438  snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" );
439 #endif /* POLARSSL_ENTROPY_C */
440 
441 #if defined(POLARSSL_MD2_C)
442  if( use_ret == -(POLARSSL_ERR_MD2_FILE_IO_ERROR) )
443  snprintf( buf, buflen, "MD2 - Read/write error in file" );
444 #endif /* POLARSSL_MD2_C */
445 
446 #if defined(POLARSSL_MD4_C)
447  if( use_ret == -(POLARSSL_ERR_MD4_FILE_IO_ERROR) )
448  snprintf( buf, buflen, "MD4 - Read/write error in file" );
449 #endif /* POLARSSL_MD4_C */
450 
451 #if defined(POLARSSL_MD5_C)
452  if( use_ret == -(POLARSSL_ERR_MD5_FILE_IO_ERROR) )
453  snprintf( buf, buflen, "MD5 - Read/write error in file" );
454 #endif /* POLARSSL_MD5_C */
455 
456 #if defined(POLARSSL_NET_C)
457  if( use_ret == -(POLARSSL_ERR_NET_UNKNOWN_HOST) )
458  snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" );
459  if( use_ret == -(POLARSSL_ERR_NET_SOCKET_FAILED) )
460  snprintf( buf, buflen, "NET - Failed to open a socket" );
461  if( use_ret == -(POLARSSL_ERR_NET_CONNECT_FAILED) )
462  snprintf( buf, buflen, "NET - The connection to the given server / port failed" );
463  if( use_ret == -(POLARSSL_ERR_NET_BIND_FAILED) )
464  snprintf( buf, buflen, "NET - Binding of the socket failed" );
465  if( use_ret == -(POLARSSL_ERR_NET_LISTEN_FAILED) )
466  snprintf( buf, buflen, "NET - Could not listen on the socket" );
467  if( use_ret == -(POLARSSL_ERR_NET_ACCEPT_FAILED) )
468  snprintf( buf, buflen, "NET - Could not accept the incoming connection" );
469  if( use_ret == -(POLARSSL_ERR_NET_RECV_FAILED) )
470  snprintf( buf, buflen, "NET - Reading information from the socket failed" );
471  if( use_ret == -(POLARSSL_ERR_NET_SEND_FAILED) )
472  snprintf( buf, buflen, "NET - Sending information through the socket failed" );
473  if( use_ret == -(POLARSSL_ERR_NET_CONN_RESET) )
474  snprintf( buf, buflen, "NET - Connection was reset by peer" );
475  if( use_ret == -(POLARSSL_ERR_NET_WANT_READ) )
476  snprintf( buf, buflen, "NET - Connection requires a read call" );
477  if( use_ret == -(POLARSSL_ERR_NET_WANT_WRITE) )
478  snprintf( buf, buflen, "NET - Connection requires a write call" );
479 #endif /* POLARSSL_NET_C */
480 
481 #if defined(POLARSSL_PADLOCK_C)
482  if( use_ret == -(POLARSSL_ERR_PADLOCK_DATA_MISALIGNED) )
483  snprintf( buf, buflen, "PADLOCK - Input data should be aligned" );
484 #endif /* POLARSSL_PADLOCK_C */
485 
486 #if defined(POLARSSL_SHA1_C)
487  if( use_ret == -(POLARSSL_ERR_SHA1_FILE_IO_ERROR) )
488  snprintf( buf, buflen, "SHA1 - Read/write error in file" );
489 #endif /* POLARSSL_SHA1_C */
490 
491 #if defined(POLARSSL_SHA2_C)
492  if( use_ret == -(POLARSSL_ERR_SHA2_FILE_IO_ERROR) )
493  snprintf( buf, buflen, "SHA2 - Read/write error in file" );
494 #endif /* POLARSSL_SHA2_C */
495 
496 #if defined(POLARSSL_SHA4_C)
497  if( use_ret == -(POLARSSL_ERR_SHA4_FILE_IO_ERROR) )
498  snprintf( buf, buflen, "SHA4 - Read/write error in file" );
499 #endif /* POLARSSL_SHA4_C */
500 
501 #if defined(POLARSSL_XTEA_C)
502  if( use_ret == -(POLARSSL_ERR_XTEA_INVALID_INPUT_LENGTH) )
503  snprintf( buf, buflen, "XTEA - The data input has an invalid length" );
504 #endif /* POLARSSL_XTEA_C */
505 
506  if( strlen( buf ) != 0 )
507  return;
508 
509  snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
510 }
511 
512 #endif /* POLARSSL_VERBOSE_ERROR */