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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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/* ====================================================================
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* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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* 6. Redistributions of any form whatsoever must retain the following
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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#include "cryptlib.h"
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#include <openssl/lhash.h>
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#include <openssl/crypto.h>
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#include <openssl/buffer.h>
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#include <openssl/bio.h>
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#include <openssl/err.h>
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static unsigned long get_error_values(int inc,int top,
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const char **file,int *line,
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const char **data,int *flags);
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#define err_clear_data(p,i) \
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if (((p)->err_data[i] != NULL) && \
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(p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
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OPENSSL_free((p)->err_data[i]); \
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(p)->err_data[i]=NULL; \
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(p)->err_data_flags[i]=0; \
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#define err_clear(p,i) \
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(p)->err_flags[i]=0; \
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(p)->err_buffer[i]=0; \
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err_clear_data(p,i); \
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(p)->err_file[i]=NULL; \
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(p)->err_line[i]= -1; \
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void ERR_put_error(int lib, int func, int reason, const char *file,
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/* In the BS2000-OSD POSIX subsystem, the compiler generates
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* path names in the form "*POSIX(/etc/passwd)".
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* This dirty hack strips them to something sensible.
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* @@@ We shouldn't modify a const string, though.
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if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {
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/* Skip the "*POSIX(" prefix */
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file += sizeof("*POSIX(")-1;
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end = &file[strlen(file)-1];
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/* Optional: use the basename of the path only. */
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if ((end = strrchr(file, '/')) != NULL)
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es->top=(es->top+1)%ERR_NUM_ERRORS;
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if (es->top == es->bottom)
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es->bottom=(es->bottom+1)%ERR_NUM_ERRORS;
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es->err_flags[es->top]=0;
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es->err_buffer[es->top]=ERR_PACK(lib,func,reason);
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es->err_file[es->top]=file;
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es->err_line[es->top]=line;
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err_clear_data(es,es->top);
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void ERR_clear_error(void)
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for (i=0; i<ERR_NUM_ERRORS; i++)
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es->top=es->bottom=0;
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unsigned long ERR_get_error(void)
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{ return(get_error_values(1,0,NULL,NULL,NULL,NULL)); }
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unsigned long ERR_get_error_line(const char **file,
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{ return(get_error_values(1,0,file,line,NULL,NULL)); }
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unsigned long ERR_get_error_line_data(const char **file, int *line,
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const char **data, int *flags)
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{ return(get_error_values(1,0,file,line,data,flags)); }
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unsigned long ERR_peek_error(void)
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{ return(get_error_values(0,0,NULL,NULL,NULL,NULL)); }
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unsigned long ERR_peek_error_line(const char **file, int *line)
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{ return(get_error_values(0,0,file,line,NULL,NULL)); }
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unsigned long ERR_peek_error_line_data(const char **file, int *line,
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const char **data, int *flags)
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{ return(get_error_values(0,0,file,line,data,flags)); }
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unsigned long ERR_peek_last_error(void)
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{ return(get_error_values(0,1,NULL,NULL,NULL,NULL)); }
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unsigned long ERR_peek_last_error_line(const char **file, int *line)
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{ return(get_error_values(0,1,file,line,NULL,NULL)); }
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unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
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const char **data, int *flags)
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{ return(get_error_values(0,1,file,line,data,flags)); }
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static unsigned long get_error_values(int inc, int top, const char **file, int *line,
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const char **data, int *flags)
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if (file) *file = "";
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if (data) *data = "";
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if (flags) *flags = 0;
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return ERR_R_INTERNAL_ERROR;
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if (es->bottom == es->top) return 0;
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i=es->top; /* last error */
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i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */
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ret=es->err_buffer[i];
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if ((file != NULL) && (line != NULL))
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if (es->err_file[i] == NULL)
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if (line != NULL) *line=0;
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*file=es->err_file[i];
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if (line != NULL) *line=es->err_line[i];
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err_clear_data(es, i);
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if (es->err_data[i] == NULL)
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if (flags != NULL) *flags=0;
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*data=es->err_data[i];
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if (flags != NULL) *flags=es->err_data_flags[i];
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void ERR_set_error_data(char *data, int flags)
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err_clear_data(es,i);
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es->err_data[i]=data;
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es->err_data_flags[i]=flags;
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void ERR_add_error_data(int num, ...)
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str=OPENSSL_malloc(s+1);
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if (str == NULL) return;
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for (i=0; i<num; i++)
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a=va_arg(args, char*);
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/* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
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p=OPENSSL_realloc(str,s+1);
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BUF_strlcat(str,a,(size_t)s+1);
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ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING);
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int ERR_set_mark(void)
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if (es->bottom == es->top) return 0;
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es->err_flags[es->top]|=ERR_FLAG_MARK;
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int ERR_pop_to_mark(void)
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while(es->bottom != es->top
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&& (es->err_flags[es->top] & ERR_FLAG_MARK) == 0)
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err_clear(es,es->top);
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if (es->top == -1) es->top=ERR_NUM_ERRORS-1;
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if (es->bottom == es->top) return 0;
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es->err_flags[es->top]&=~ERR_FLAG_MARK;
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static ERR_STATE *fget_state(void)
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static ERR_STATE fstate;
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ERR_STATE *(*get_state_func)(void) = fget_state;
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void (*remove_state_func)(unsigned long pid);
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ERR_STATE *ERR_get_state(void)
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return get_state_func();
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void int_ERR_set_state_func(ERR_STATE *(*get_func)(void),
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void (*remove_func)(unsigned long pid))
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get_state_func = get_func;
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remove_state_func = remove_func;
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void ERR_remove_state(unsigned long pid)
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if (remove_state_func)
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remove_state_func(pid);