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      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 	CRYPTO_THREADID cur;
     76 
     77 	CRYPTO_THREADID_current(&cur);
     78 	es=CRYPTO_THREADID_hash(&cur);
     79 	while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0)
     80 		{
     81 		ERR_error_string_n(l, buf, sizeof buf);
     82 		BIO_snprintf(buf2, sizeof(buf2), "%lu:%s:%s:%d:%s\n", es, buf,
     83 			file, line, (flags & ERR_TXT_STRING) ? data : "");
     84 		if (cb(buf2, strlen(buf2), u) <= 0)
     85 			break; /* abort outputting the error report */
     86 		}
     87 	}
     88 
     89 #ifndef OPENSSL_NO_FP_API
     90 static int print_fp(const char *str, size_t len, void *fp)
     91 	{
     92 	BIO bio;
     93 
     94 	BIO_set(&bio,BIO_s_file());
     95 	BIO_set_fp(&bio,fp,BIO_NOCLOSE);
     96 
     97 	return BIO_printf(&bio, "%s", str);
     98 	}
     99 void ERR_print_errors_fp(FILE *fp)
    100 	{
    101 	ERR_print_errors_cb(print_fp, fp);
    102 	}
    103 #endif
    104 
    105 static int print_bio(const char *str, size_t len, void *bp)
    106 	{
    107 	return BIO_write((BIO *)bp, str, len);
    108 	}
    109 void ERR_print_errors(BIO *bp)
    110 	{
    111 	ERR_print_errors_cb(print_bio, bp);
    112 	}
    113 
    114 
    115