1 /* crypto/err/err_prn.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh (at) cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay (at) cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 #include "cryptlib.h" 61 #include <openssl/lhash.h> 62 #include <openssl/crypto.h> 63 #include <openssl/buffer.h> 64 #include <openssl/err.h> 65 66 void ERR_print_errors_cb(int (*cb)(const char *str, size_t len, void *u), 67 void *u) 68 { 69 unsigned long l; 70 char buf[256]; 71 char buf2[4096]; 72 const char *file,*data; 73 int line,flags; 74 unsigned long es; 75 76 es=CRYPTO_thread_id(); 77 while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0) 78 { 79 ERR_error_string_n(l, buf, sizeof buf); 80 BIO_snprintf(buf2, sizeof(buf2), "%lu:%s:%s:%d:%s\n", es, buf, 81 file, line, (flags & ERR_TXT_STRING) ? data : ""); 82 cb(buf2, strlen(buf2), u); 83 } 84 } 85 86 #ifndef OPENSSL_NO_FP_API 87 static int print_fp(const char *str, size_t len, void *fp) 88 { 89 return fwrite(str, 1, len, fp); 90 } 91 void ERR_print_errors_fp(FILE *fp) 92 { 93 ERR_print_errors_cb(print_fp, fp); 94 } 95 #endif 96 97 void ERR_error_string_n(unsigned long e, char *buf, size_t len) 98 { 99 char lsbuf[64], fsbuf[64], rsbuf[64]; 100 const char *ls,*fs,*rs; 101 unsigned long l,f,r; 102 103 l=ERR_GET_LIB(e); 104 f=ERR_GET_FUNC(e); 105 r=ERR_GET_REASON(e); 106 107 ls=ERR_lib_error_string(e); 108 fs=ERR_func_error_string(e); 109 rs=ERR_reason_error_string(e); 110 111 if (ls == NULL) 112 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l); 113 if (fs == NULL) 114 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f); 115 if (rs == NULL) 116 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r); 117 118 BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf, 119 fs?fs:fsbuf, rs?rs:rsbuf); 120 if (strlen(buf) == len-1) 121 { 122 /* output may be truncated; make sure we always have 5 123 * colon-separated fields, i.e. 4 colons ... */ 124 #define NUM_COLONS 4 125 if (len > NUM_COLONS) /* ... if possible */ 126 { 127 int i; 128 char *s = buf; 129 130 for (i = 0; i < NUM_COLONS; i++) 131 { 132 char *colon = strchr(s, ':'); 133 if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i) 134 { 135 /* set colon no. i at last possible position 136 * (buf[len-1] is the terminating 0)*/ 137 colon = &buf[len-1] - NUM_COLONS + i; 138 *colon = ':'; 139 } 140 s = colon + 1; 141 } 142 } 143 } 144 } 145 146 /* BAD for multi-threading: uses a local buffer if ret == NULL */ 147 /* ERR_error_string_n should be used instead for ret != NULL 148 * as ERR_error_string cannot know how large the buffer is */ 149 char *ERR_error_string(unsigned long e, char *ret) 150 { 151 static char buf[256]; 152 153 if (ret == NULL) ret=buf; 154 ERR_error_string_n(e, ret, 256); 155 156 return ret; 157 } 158
