550 lines
13 KiB
C
550 lines
13 KiB
C
/* crypto/err/err.c */
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/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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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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*
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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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*
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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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*
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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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* are met:
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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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*
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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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* SUCH DAMAGE.
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*
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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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#include <stdio.h>
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#include "lhash.h"
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#include "crypto.h"
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#include "cryptlib.h"
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#include "buffer.h"
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#include "err.h"
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#include "crypto.h"
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static LHASH *error_hash=NULL;
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static LHASH *thread_hash=NULL;
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#ifndef NOPROTO
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static unsigned long err_hash(ERR_STRING_DATA *a);
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static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b);
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static unsigned long pid_hash(ERR_STATE *pid);
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static int pid_cmp(ERR_STATE *a,ERR_STATE *pid);
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#else
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static unsigned long err_hash();
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static int err_cmp();
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static unsigned long pid_hash();
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static int pid_cmp();
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#endif
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#ifndef NO_ERR
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static ERR_STRING_DATA ERR_str_libraries[]=
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{
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{ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"},
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{ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"},
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{ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"},
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{ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"},
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{ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"},
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{ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"},
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{ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"},
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{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
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{ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"},
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{ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"},
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{ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"},
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{ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"},
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{ERR_PACK(ERR_LIB_CONF,0,0) ,"configuation file routines"},
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{ERR_PACK(ERR_LIB_METH,0,0) ,"X509 lookup 'method' routines"},
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{ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"},
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{ERR_PACK(ERR_LIB_RSAREF,0,0) ,"RSAref routines"},
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{ERR_PACK(ERR_LIB_PROXY,0,0) ,"Proxy routines"},
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{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"},
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{ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"},
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{0,NULL},
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};
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static ERR_STRING_DATA ERR_str_functs[]=
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{
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{ERR_PACK(0,SYS_F_FOPEN,0), "fopen"},
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{ERR_PACK(0,SYS_F_CONNECT,0), "connect"},
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{ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"},
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{ERR_PACK(0,SYS_F_SOCKET,0), "socket"},
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{ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"},
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{ERR_PACK(0,SYS_F_BIND,0), "bind"},
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{ERR_PACK(0,SYS_F_LISTEN,0), "listen"},
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{ERR_PACK(0,SYS_F_ACCEPT,0), "accept"},
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#ifdef WINDOWS
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{ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"},
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#endif
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{0,NULL},
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};
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static ERR_STRING_DATA ERR_str_reasons[]=
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{
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{ERR_R_FATAL ,"fatal"},
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{ERR_R_SYS_LIB ,"system lib"},
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{ERR_R_BN_LIB ,"BN lib"},
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{ERR_R_RSA_LIB ,"RSA lib"},
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{ERR_R_DH_LIB ,"DH lib"},
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{ERR_R_EVP_LIB ,"EVP lib"},
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{ERR_R_BUF_LIB ,"BUF lib"},
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{ERR_R_BIO_LIB ,"BIO lib"},
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{ERR_R_OBJ_LIB ,"OBJ lib"},
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{ERR_R_PEM_LIB ,"PEM lib"},
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{ERR_R_X509_LIB ,"X509 lib"},
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{ERR_R_METH_LIB ,"METH lib"},
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{ERR_R_ASN1_LIB ,"ASN1 lib"},
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{ERR_R_CONF_LIB ,"CONF lib"},
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{ERR_R_SSL_LIB ,"SSL lib"},
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{ERR_R_PROXY_LIB ,"PROXY lib"},
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{ERR_R_BIO_LIB ,"BIO lib"},
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{ERR_R_PKCS7_LIB ,"PKCS7 lib"},
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{ERR_R_MALLOC_FAILURE ,"Malloc failure"},
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{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a fuction you should not call"},
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{0,NULL},
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};
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#endif
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void ERR_load_ERR_strings()
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{
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static int init=1;
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if (init)
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{
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CRYPTO_w_lock(CRYPTO_LOCK_ERR);
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if (init == 0)
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{
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
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return;
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}
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init=0;
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
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#ifndef NO_ERR
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ERR_load_strings(0,ERR_str_libraries);
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ERR_load_strings(0,ERR_str_reasons);
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ERR_load_strings(ERR_LIB_SYS,ERR_str_functs);
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#endif
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}
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}
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void ERR_load_strings(lib,str)
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int lib;
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ERR_STRING_DATA *str;
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{
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if (error_hash == NULL)
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{
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CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
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error_hash=lh_new(err_hash,err_cmp);
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if (error_hash == NULL)
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{
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
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return;
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}
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
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ERR_load_ERR_strings();
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}
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CRYPTO_w_lock(CRYPTO_LOCK_ERR_HASH);
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while (str->error)
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{
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str->error|=ERR_PACK(lib,0,0);
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lh_insert(error_hash,(char *)str);
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str++;
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}
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR_HASH);
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}
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void ERR_free_strings()
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{
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CRYPTO_w_lock(CRYPTO_LOCK_ERR);
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if (error_hash != NULL)
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{
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lh_free(error_hash);
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error_hash=NULL;
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}
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
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}
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void ERR_put_error(lib,func,reason,file,line)
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int lib,func,reason;
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char *file;
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int line;
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{
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ERR_STATE *es;
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es=ERR_get_state();
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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_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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}
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void ERR_clear_error()
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{
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int i;
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ERR_STATE *es;
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es=ERR_get_state();
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for (i=0; i<ERR_NUM_ERRORS; i++)
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{
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es->err_buffer[i]=0;
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es->err_file[i]=NULL;
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es->err_line[i]= -1;
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}
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es->top=es->bottom=0;
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}
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unsigned long ERR_peek_error()
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{
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int i;
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ERR_STATE *es;
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/* should be fine since only one thread should ever be playing
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* with the value returned from this call */
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es=ERR_get_state();
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if (es->bottom == es->top) return(0);
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i=(es->bottom+1)%ERR_NUM_ERRORS;
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return(es->err_buffer[i]);
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}
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unsigned long ERR_get_error()
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{
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int i;
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unsigned long ret;
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ERR_STATE *es;
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es=ERR_get_state();
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if (es->bottom == es->top) return(0);
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i=(es->bottom+1)%ERR_NUM_ERRORS;
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es->bottom=i;
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ret=es->err_buffer[i];
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es->err_buffer[i]=0;
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return(ret);
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}
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unsigned long ERR_peek_error_line(file,line)
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char **file;
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int *line;
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{
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int i=0;
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ERR_STATE *es;
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es=ERR_get_state();
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if (es->bottom == es->top)
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{
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return(0);
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}
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i=(es->bottom+1)%ERR_NUM_ERRORS;
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if (es->err_file[i] == NULL)
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{
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*file="NA";
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*line=0;
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}
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else
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{
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*file=es->err_file[i];
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*line=es->err_line[i];
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}
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return(es->err_buffer[i]);
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}
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unsigned long ERR_get_error_line(file,line)
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char **file;
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int *line;
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{
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int i;
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unsigned long ret;
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ERR_STATE *es;
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es=ERR_get_state();
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if (es->bottom == es->top)
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return(0);
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i=(es->bottom+1)%ERR_NUM_ERRORS;
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es->bottom=i;
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ret= es->err_buffer[i];
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if (es->err_file[i] == NULL)
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{
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*file="NA";
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*line=0;
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}
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else
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{
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*file=es->err_file[i];
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*line=es->err_line[i];
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}
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es->err_buffer[i]=0;
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es->err_file[i]=NULL;
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es->err_line[i]= -1;
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return(ret);
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}
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/* BAD for multi-threaded, uses a local buffer if ret == NULL */
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char *ERR_error_string(e,ret)
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unsigned long e;
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char *ret;
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{
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static char buf[256];
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char *ls,*fs,*rs;
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unsigned long l,f,r;
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int i;
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l=ERR_GET_LIB(e);
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f=ERR_GET_FUNC(e);
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r=ERR_GET_REASON(e);
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ls=ERR_lib_error_string(e);
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fs=ERR_func_error_string(e);
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rs=ERR_reason_error_string(e);
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if (ret == NULL) ret=buf;
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sprintf(&(ret[0]),"error:%08lX:",e);
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i=strlen(ret);
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if (ls == NULL)
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sprintf(&(ret[i]),":lib(%lu) ",l);
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else sprintf(&(ret[i]),"%s",ls);
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i=strlen(ret);
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if (fs == NULL)
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sprintf(&(ret[i]),":func(%lu) ",f);
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else sprintf(&(ret[i]),":%s",fs);
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i=strlen(ret);
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if (rs == NULL)
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sprintf(&(ret[i]),":reason(%lu)",r);
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else sprintf(&(ret[i]),":%s",rs);
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return(ret);
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}
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LHASH *ERR_get_string_table()
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{
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return(error_hash);
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}
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LHASH *ERR_get_err_state_table()
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{
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return(thread_hash);
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}
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char *ERR_lib_error_string(e)
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unsigned long e;
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{
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ERR_STRING_DATA d,*p=NULL;
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unsigned long l;
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l=ERR_GET_LIB(e);
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CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);
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if (error_hash != NULL)
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{
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d.error=ERR_PACK(l,0,0);
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p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
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}
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CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);
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return((p == NULL)?NULL:p->string);
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}
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char *ERR_func_error_string(e)
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unsigned long e;
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{
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ERR_STRING_DATA d,*p=NULL;
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unsigned long l,f;
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l=ERR_GET_LIB(e);
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f=ERR_GET_FUNC(e);
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CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);
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if (error_hash != NULL)
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{
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d.error=ERR_PACK(l,f,0);
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p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
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}
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CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);
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return((p == NULL)?NULL:p->string);
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}
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char *ERR_reason_error_string(e)
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unsigned long e;
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{
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ERR_STRING_DATA d,*p=NULL;
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unsigned long l,r;
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l=ERR_GET_LIB(e);
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r=ERR_GET_REASON(e);
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CRYPTO_r_lock(CRYPTO_LOCK_ERR_HASH);
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if (error_hash != NULL)
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{
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d.error=ERR_PACK(l,0,r);
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p=(ERR_STRING_DATA *)lh_retrieve(error_hash,(char *)&d);
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if (p == NULL)
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{
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d.error=ERR_PACK(0,0,r);
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p=(ERR_STRING_DATA *)lh_retrieve(error_hash,
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(char *)&d);
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}
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}
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CRYPTO_r_unlock(CRYPTO_LOCK_ERR_HASH);
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return((p == NULL)?NULL:p->string);
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}
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static unsigned long err_hash(a)
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ERR_STRING_DATA *a;
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{
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unsigned long ret,l;
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l=a->error;
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ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l);
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return(ret^ret%19*13);
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}
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static int err_cmp(a,b)
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ERR_STRING_DATA *a,*b;
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{
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return((int)(a->error-b->error));
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}
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static unsigned long pid_hash(a)
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ERR_STATE *a;
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{
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return(a->pid*13);
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}
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static int pid_cmp(a,b)
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ERR_STATE *a,*b;
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{
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return((int)((long)a->pid - (long)b->pid));
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}
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void ERR_remove_state(pid)
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unsigned long pid;
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{
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ERR_STATE *p,tmp;
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if (thread_hash == NULL)
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return;
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if (pid == 0)
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pid=(unsigned long)CRYPTO_thread_id();
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tmp.pid=pid;
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CRYPTO_w_lock(CRYPTO_LOCK_ERR);
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p=(ERR_STATE *)lh_delete(thread_hash,(char *)&tmp);
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if (p != NULL) Free(p);
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
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}
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ERR_STATE *ERR_get_state()
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{
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static ERR_STATE fallback;
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ERR_STATE *ret=NULL,tmp,*tmpp;
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unsigned long pid;
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pid=(unsigned long)CRYPTO_thread_id();
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CRYPTO_r_lock(CRYPTO_LOCK_ERR);
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if (thread_hash == NULL)
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{
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CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
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CRYPTO_w_lock(CRYPTO_LOCK_ERR);
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if (thread_hash == NULL)
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{
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thread_hash=lh_new(pid_hash,pid_cmp);
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CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
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if (thread_hash == NULL) return(&fallback);
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}
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else
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
|
|
}
|
|
else
|
|
{
|
|
tmp.pid=pid;
|
|
ret=(ERR_STATE *)lh_retrieve(thread_hash,(char *)&tmp);
|
|
CRYPTO_r_unlock(CRYPTO_LOCK_ERR);
|
|
}
|
|
|
|
/* ret == the error state, if NULL, make a new one */
|
|
if (ret == NULL)
|
|
{
|
|
ret=(ERR_STATE *)Malloc(sizeof(ERR_STATE));
|
|
if (ret == NULL) return(&fallback);
|
|
ret->pid=pid;
|
|
ret->top=0;
|
|
ret->bottom=0;
|
|
CRYPTO_w_lock(CRYPTO_LOCK_ERR);
|
|
tmpp=(ERR_STATE *)lh_insert(thread_hash,(char *)ret);
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_ERR);
|
|
if (tmpp != NULL) /* old entry - should not happen */
|
|
Free(tmpp);
|
|
}
|
|
return(ret);
|
|
}
|
|
|