1 /* $OpenBSD: err_prn.c,v 1.18 2017/02/07 15:52:33 jsing Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@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@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@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@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 <string.h> 61 62 #include <openssl/buffer.h> 63 #include <openssl/crypto.h> 64 #include <openssl/err.h> 65 #include <openssl/lhash.h> 66 67 void 68 ERR_print_errors_cb(int (*cb)(const char *str, size_t len, void *u), void *u) 69 { 70 unsigned long l; 71 char buf[256]; 72 char buf2[4096]; 73 const char *file, *data; 74 int line, flags; 75 unsigned long es; 76 CRYPTO_THREADID cur; 77 78 CRYPTO_THREADID_current(&cur); 79 es = CRYPTO_THREADID_hash(&cur); 80 while ((l = ERR_get_error_line_data(&file, &line, &data, 81 &flags)) != 0) { 82 ERR_error_string_n(l, buf, sizeof buf); 83 (void) snprintf(buf2, sizeof(buf2), "%lu:%s:%s:%d:%s\n", es, 84 buf, file, line, (flags & ERR_TXT_STRING) ? data : ""); 85 if (cb(buf2, strlen(buf2), u) <= 0) 86 break; /* abort outputting the error report */ 87 } 88 } 89 90 static int 91 print_fp(const char *str, size_t len, void *fp) 92 { 93 BIO bio; 94 95 BIO_set(&bio, BIO_s_file()); 96 BIO_set_fp(&bio, fp, BIO_NOCLOSE); 97 98 return BIO_printf(&bio, "%s", str); 99 } 100 101 void 102 ERR_print_errors_fp(FILE *fp) 103 { 104 ERR_print_errors_cb(print_fp, fp); 105 } 106 107 static int 108 print_bio(const char *str, size_t len, void *bp) 109 { 110 return BIO_write((BIO *)bp, str, len); 111 } 112 113 void 114 ERR_print_errors(BIO *bp) 115 { 116 ERR_print_errors_cb(print_bio, bp); 117 } 118