diff options
Diffstat (limited to 'drivers/builtin_openssl/crypto/err/err.c')
| -rw-r--r-- | drivers/builtin_openssl/crypto/err/err.c | 1138 |
1 files changed, 1138 insertions, 0 deletions
diff --git a/drivers/builtin_openssl/crypto/err/err.c b/drivers/builtin_openssl/crypto/err/err.c new file mode 100644 index 0000000000..fcdb244008 --- /dev/null +++ b/drivers/builtin_openssl/crypto/err/err.c @@ -0,0 +1,1138 @@ +/* crypto/err/err.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <stdarg.h> +#include <string.h> +#include "cryptlib.h" +#include <openssl/lhash.h> +#include <openssl/crypto.h> +#include <openssl/buffer.h> +#include <openssl/bio.h> +#include <openssl/err.h> + +DECLARE_LHASH_OF(ERR_STRING_DATA); +DECLARE_LHASH_OF(ERR_STATE); + +static void err_load_strings(int lib, ERR_STRING_DATA *str); + +static void ERR_STATE_free(ERR_STATE *s); +#ifndef OPENSSL_NO_ERR +static ERR_STRING_DATA ERR_str_libraries[]= + { +{ERR_PACK(ERR_LIB_NONE,0,0) ,"unknown library"}, +{ERR_PACK(ERR_LIB_SYS,0,0) ,"system library"}, +{ERR_PACK(ERR_LIB_BN,0,0) ,"bignum routines"}, +{ERR_PACK(ERR_LIB_RSA,0,0) ,"rsa routines"}, +{ERR_PACK(ERR_LIB_DH,0,0) ,"Diffie-Hellman routines"}, +{ERR_PACK(ERR_LIB_EVP,0,0) ,"digital envelope routines"}, +{ERR_PACK(ERR_LIB_BUF,0,0) ,"memory buffer routines"}, +{ERR_PACK(ERR_LIB_OBJ,0,0) ,"object identifier routines"}, +{ERR_PACK(ERR_LIB_PEM,0,0) ,"PEM routines"}, +{ERR_PACK(ERR_LIB_DSA,0,0) ,"dsa routines"}, +{ERR_PACK(ERR_LIB_X509,0,0) ,"x509 certificate routines"}, +{ERR_PACK(ERR_LIB_ASN1,0,0) ,"asn1 encoding routines"}, +{ERR_PACK(ERR_LIB_CONF,0,0) ,"configuration file routines"}, +{ERR_PACK(ERR_LIB_CRYPTO,0,0) ,"common libcrypto routines"}, +{ERR_PACK(ERR_LIB_EC,0,0) ,"elliptic curve routines"}, +{ERR_PACK(ERR_LIB_SSL,0,0) ,"SSL routines"}, +{ERR_PACK(ERR_LIB_BIO,0,0) ,"BIO routines"}, +{ERR_PACK(ERR_LIB_PKCS7,0,0) ,"PKCS7 routines"}, +{ERR_PACK(ERR_LIB_X509V3,0,0) ,"X509 V3 routines"}, +{ERR_PACK(ERR_LIB_PKCS12,0,0) ,"PKCS12 routines"}, +{ERR_PACK(ERR_LIB_RAND,0,0) ,"random number generator"}, +{ERR_PACK(ERR_LIB_DSO,0,0) ,"DSO support routines"}, +{ERR_PACK(ERR_LIB_TS,0,0) ,"time stamp routines"}, +{ERR_PACK(ERR_LIB_ENGINE,0,0) ,"engine routines"}, +{ERR_PACK(ERR_LIB_OCSP,0,0) ,"OCSP routines"}, +{ERR_PACK(ERR_LIB_FIPS,0,0) ,"FIPS routines"}, +{ERR_PACK(ERR_LIB_CMS,0,0) ,"CMS routines"}, +{ERR_PACK(ERR_LIB_HMAC,0,0) ,"HMAC routines"}, +{0,NULL}, + }; + +static ERR_STRING_DATA ERR_str_functs[]= + { + {ERR_PACK(0,SYS_F_FOPEN,0), "fopen"}, + {ERR_PACK(0,SYS_F_CONNECT,0), "connect"}, + {ERR_PACK(0,SYS_F_GETSERVBYNAME,0), "getservbyname"}, + {ERR_PACK(0,SYS_F_SOCKET,0), "socket"}, + {ERR_PACK(0,SYS_F_IOCTLSOCKET,0), "ioctlsocket"}, + {ERR_PACK(0,SYS_F_BIND,0), "bind"}, + {ERR_PACK(0,SYS_F_LISTEN,0), "listen"}, + {ERR_PACK(0,SYS_F_ACCEPT,0), "accept"}, +#ifdef OPENSSL_SYS_WINDOWS + {ERR_PACK(0,SYS_F_WSASTARTUP,0), "WSAstartup"}, +#endif + {ERR_PACK(0,SYS_F_OPENDIR,0), "opendir"}, + {ERR_PACK(0,SYS_F_FREAD,0), "fread"}, + {0,NULL}, + }; + +static ERR_STRING_DATA ERR_str_reasons[]= + { +{ERR_R_SYS_LIB ,"system lib"}, +{ERR_R_BN_LIB ,"BN lib"}, +{ERR_R_RSA_LIB ,"RSA lib"}, +{ERR_R_DH_LIB ,"DH lib"}, +{ERR_R_EVP_LIB ,"EVP lib"}, +{ERR_R_BUF_LIB ,"BUF lib"}, +{ERR_R_OBJ_LIB ,"OBJ lib"}, +{ERR_R_PEM_LIB ,"PEM lib"}, +{ERR_R_DSA_LIB ,"DSA lib"}, +{ERR_R_X509_LIB ,"X509 lib"}, +{ERR_R_ASN1_LIB ,"ASN1 lib"}, +{ERR_R_CONF_LIB ,"CONF lib"}, +{ERR_R_CRYPTO_LIB ,"CRYPTO lib"}, +{ERR_R_EC_LIB ,"EC lib"}, +{ERR_R_SSL_LIB ,"SSL lib"}, +{ERR_R_BIO_LIB ,"BIO lib"}, +{ERR_R_PKCS7_LIB ,"PKCS7 lib"}, +{ERR_R_X509V3_LIB ,"X509V3 lib"}, +{ERR_R_PKCS12_LIB ,"PKCS12 lib"}, +{ERR_R_RAND_LIB ,"RAND lib"}, +{ERR_R_DSO_LIB ,"DSO lib"}, +{ERR_R_ENGINE_LIB ,"ENGINE lib"}, +{ERR_R_OCSP_LIB ,"OCSP lib"}, +{ERR_R_TS_LIB ,"TS lib"}, + +{ERR_R_NESTED_ASN1_ERROR ,"nested asn1 error"}, +{ERR_R_BAD_ASN1_OBJECT_HEADER ,"bad asn1 object header"}, +{ERR_R_BAD_GET_ASN1_OBJECT_CALL ,"bad get asn1 object call"}, +{ERR_R_EXPECTING_AN_ASN1_SEQUENCE ,"expecting an asn1 sequence"}, +{ERR_R_ASN1_LENGTH_MISMATCH ,"asn1 length mismatch"}, +{ERR_R_MISSING_ASN1_EOS ,"missing asn1 eos"}, + +{ERR_R_FATAL ,"fatal"}, +{ERR_R_MALLOC_FAILURE ,"malloc failure"}, +{ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED ,"called a function you should not call"}, +{ERR_R_PASSED_NULL_PARAMETER ,"passed a null parameter"}, +{ERR_R_INTERNAL_ERROR ,"internal error"}, +{ERR_R_DISABLED ,"called a function that was disabled at compile-time"}, + +{0,NULL}, + }; +#endif + + +/* Define the predeclared (but externally opaque) "ERR_FNS" type */ +struct st_ERR_FNS + { + /* Works on the "error_hash" string table */ + LHASH_OF(ERR_STRING_DATA) *(*cb_err_get)(int create); + void (*cb_err_del)(void); + ERR_STRING_DATA *(*cb_err_get_item)(const ERR_STRING_DATA *); + ERR_STRING_DATA *(*cb_err_set_item)(ERR_STRING_DATA *); + ERR_STRING_DATA *(*cb_err_del_item)(ERR_STRING_DATA *); + /* Works on the "thread_hash" error-state table */ + LHASH_OF(ERR_STATE) *(*cb_thread_get)(int create); + void (*cb_thread_release)(LHASH_OF(ERR_STATE) **hash); + ERR_STATE *(*cb_thread_get_item)(const ERR_STATE *); + ERR_STATE *(*cb_thread_set_item)(ERR_STATE *); + void (*cb_thread_del_item)(const ERR_STATE *); + /* Returns the next available error "library" numbers */ + int (*cb_get_next_lib)(void); + }; + +/* Predeclarations of the "err_defaults" functions */ +static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create); +static void int_err_del(void); +static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *); +static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *); +static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *); +static LHASH_OF(ERR_STATE) *int_thread_get(int create); +static void int_thread_release(LHASH_OF(ERR_STATE) **hash); +static ERR_STATE *int_thread_get_item(const ERR_STATE *); +static ERR_STATE *int_thread_set_item(ERR_STATE *); +static void int_thread_del_item(const ERR_STATE *); +static int int_err_get_next_lib(void); +/* The static ERR_FNS table using these defaults functions */ +static const ERR_FNS err_defaults = + { + int_err_get, + int_err_del, + int_err_get_item, + int_err_set_item, + int_err_del_item, + int_thread_get, + int_thread_release, + int_thread_get_item, + int_thread_set_item, + int_thread_del_item, + int_err_get_next_lib + }; + +/* The replacable table of ERR_FNS functions we use at run-time */ +static const ERR_FNS *err_fns = NULL; + +/* Eg. rather than using "err_get()", use "ERRFN(err_get)()". */ +#define ERRFN(a) err_fns->cb_##a + +/* The internal state used by "err_defaults" - as such, the setting, reading, + * creating, and deleting of this data should only be permitted via the + * "err_defaults" functions. This way, a linked module can completely defer all + * ERR state operation (together with requisite locking) to the implementations + * and state in the loading application. */ +static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL; +static LHASH_OF(ERR_STATE) *int_thread_hash = NULL; +static int int_thread_hash_references = 0; +static int int_err_library_number= ERR_LIB_USER; + +/* Internal function that checks whether "err_fns" is set and if not, sets it to + * the defaults. */ +static void err_fns_check(void) + { + if (err_fns) return; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + if (!err_fns) + err_fns = &err_defaults; + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + } + +/* API functions to get or set the underlying ERR functions. */ + +const ERR_FNS *ERR_get_implementation(void) + { + err_fns_check(); + return err_fns; + } + +int ERR_set_implementation(const ERR_FNS *fns) + { + int ret = 0; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + /* It's too late if 'err_fns' is non-NULL. BTW: not much point setting + * an error is there?! */ + if (!err_fns) + { + err_fns = fns; + ret = 1; + } + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + return ret; + } + +/* These are the callbacks provided to "lh_new()" when creating the LHASH tables + * internal to the "err_defaults" implementation. */ + +static unsigned long get_error_values(int inc,int top,const char **file,int *line, + const char **data,int *flags); + +/* The internal functions used in the "err_defaults" implementation */ + +static unsigned long err_string_data_hash(const ERR_STRING_DATA *a) + { + unsigned long ret,l; + + l=a->error; + ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l); + return(ret^ret%19*13); + } +static IMPLEMENT_LHASH_HASH_FN(err_string_data, ERR_STRING_DATA) + +static int err_string_data_cmp(const ERR_STRING_DATA *a, + const ERR_STRING_DATA *b) + { + return (int)(a->error - b->error); + } +static IMPLEMENT_LHASH_COMP_FN(err_string_data, ERR_STRING_DATA) + +static LHASH_OF(ERR_STRING_DATA) *int_err_get(int create) + { + LHASH_OF(ERR_STRING_DATA) *ret = NULL; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + if (!int_error_hash && create) + { + CRYPTO_push_info("int_err_get (err.c)"); + int_error_hash = lh_ERR_STRING_DATA_new(); + CRYPTO_pop_info(); + } + if (int_error_hash) + ret = int_error_hash; + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + + return ret; + } + +static void int_err_del(void) + { + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + if (int_error_hash) + { + lh_ERR_STRING_DATA_free(int_error_hash); + int_error_hash = NULL; + } + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + } + +static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d) + { + ERR_STRING_DATA *p; + LHASH_OF(ERR_STRING_DATA) *hash; + + err_fns_check(); + hash = ERRFN(err_get)(0); + if (!hash) + return NULL; + + CRYPTO_r_lock(CRYPTO_LOCK_ERR); + p = lh_ERR_STRING_DATA_retrieve(hash, d); + CRYPTO_r_unlock(CRYPTO_LOCK_ERR); + + return p; + } + +static ERR_STRING_DATA *int_err_set_item(ERR_STRING_DATA *d) + { + ERR_STRING_DATA *p; + LHASH_OF(ERR_STRING_DATA) *hash; + + err_fns_check(); + hash = ERRFN(err_get)(1); + if (!hash) + return NULL; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + p = lh_ERR_STRING_DATA_insert(hash, d); + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + + return p; + } + +static ERR_STRING_DATA *int_err_del_item(ERR_STRING_DATA *d) + { + ERR_STRING_DATA *p; + LHASH_OF(ERR_STRING_DATA) *hash; + + err_fns_check(); + hash = ERRFN(err_get)(0); + if (!hash) + return NULL; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + p = lh_ERR_STRING_DATA_delete(hash, d); + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + + return p; + } + +static unsigned long err_state_hash(const ERR_STATE *a) + { + return CRYPTO_THREADID_hash(&a->tid) * 13; + } +static IMPLEMENT_LHASH_HASH_FN(err_state, ERR_STATE) + +static int err_state_cmp(const ERR_STATE *a, const ERR_STATE *b) + { + return CRYPTO_THREADID_cmp(&a->tid, &b->tid); + } +static IMPLEMENT_LHASH_COMP_FN(err_state, ERR_STATE) + +static LHASH_OF(ERR_STATE) *int_thread_get(int create) + { + LHASH_OF(ERR_STATE) *ret = NULL; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + if (!int_thread_hash && create) + { + CRYPTO_push_info("int_thread_get (err.c)"); + int_thread_hash = lh_ERR_STATE_new(); + CRYPTO_pop_info(); + } + if (int_thread_hash) + { + int_thread_hash_references++; + ret = int_thread_hash; + } + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + return ret; + } + +static void int_thread_release(LHASH_OF(ERR_STATE) **hash) + { + int i; + + if (hash == NULL || *hash == NULL) + return; + + i = CRYPTO_add(&int_thread_hash_references, -1, CRYPTO_LOCK_ERR); + +#ifdef REF_PRINT + fprintf(stderr,"%4d:%s\n",int_thread_hash_references,"ERR"); +#endif + if (i > 0) return; +#ifdef REF_CHECK + if (i < 0) + { + fprintf(stderr,"int_thread_release, bad reference count\n"); + abort(); /* ok */ + } +#endif + *hash = NULL; + } + +static ERR_STATE *int_thread_get_item(const ERR_STATE *d) + { + ERR_STATE *p; + LHASH_OF(ERR_STATE) *hash; + + err_fns_check(); + hash = ERRFN(thread_get)(0); + if (!hash) + return NULL; + + CRYPTO_r_lock(CRYPTO_LOCK_ERR); + p = lh_ERR_STATE_retrieve(hash, d); + CRYPTO_r_unlock(CRYPTO_LOCK_ERR); + + ERRFN(thread_release)(&hash); + return p; + } + +static ERR_STATE *int_thread_set_item(ERR_STATE *d) + { + ERR_STATE *p; + LHASH_OF(ERR_STATE) *hash; + + err_fns_check(); + hash = ERRFN(thread_get)(1); + if (!hash) + return NULL; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + p = lh_ERR_STATE_insert(hash, d); + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + + ERRFN(thread_release)(&hash); + return p; + } + +static void int_thread_del_item(const ERR_STATE *d) + { + ERR_STATE *p; + LHASH_OF(ERR_STATE) *hash; + + err_fns_check(); + hash = ERRFN(thread_get)(0); + if (!hash) + return; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + p = lh_ERR_STATE_delete(hash, d); + /* make sure we don't leak memory */ + if (int_thread_hash_references == 1 + && int_thread_hash && lh_ERR_STATE_num_items(int_thread_hash) == 0) + { + lh_ERR_STATE_free(int_thread_hash); + int_thread_hash = NULL; + } + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + + ERRFN(thread_release)(&hash); + if (p) + ERR_STATE_free(p); + } + +static int int_err_get_next_lib(void) + { + int ret; + + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + ret = int_err_library_number++; + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + + return ret; + } + + +#ifndef OPENSSL_NO_ERR +#define NUM_SYS_STR_REASONS 127 +#define LEN_SYS_STR_REASON 32 + +static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1]; +/* SYS_str_reasons is filled with copies of strerror() results at + * initialization. + * 'errno' values up to 127 should cover all usual errors, + * others will be displayed numerically by ERR_error_string. + * It is crucial that we have something for each reason code + * that occurs in ERR_str_reasons, or bogus reason strings + * will be returned for SYSerr(), which always gets an errno + * value and never one of those 'standard' reason codes. */ + +static void build_SYS_str_reasons(void) + { + /* OPENSSL_malloc cannot be used here, use static storage instead */ + static char strerror_tab[NUM_SYS_STR_REASONS][LEN_SYS_STR_REASON]; + int i; + static int init = 1; + + CRYPTO_r_lock(CRYPTO_LOCK_ERR); + if (!init) + { + CRYPTO_r_unlock(CRYPTO_LOCK_ERR); + return; + } + + CRYPTO_r_unlock(CRYPTO_LOCK_ERR); + CRYPTO_w_lock(CRYPTO_LOCK_ERR); + if (!init) + { + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + return; + } + + for (i = 1; i <= NUM_SYS_STR_REASONS; i++) + { + ERR_STRING_DATA *str = &SYS_str_reasons[i - 1]; + + str->error = (unsigned long)i; + if (str->string == NULL) + { + char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]); + char *src = strerror(i); + if (src != NULL) + { + strncpy(*dest, src, sizeof *dest); + (*dest)[sizeof *dest - 1] = '\0'; + str->string = *dest; + } + } + if (str->string == NULL) + str->string = "unknown"; + } + + /* Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, + * as required by ERR_load_strings. */ + + init = 0; + + CRYPTO_w_unlock(CRYPTO_LOCK_ERR); + } +#endif + +#define err_clear_data(p,i) \ + do { \ + if (((p)->err_data[i] != NULL) && \ + (p)->err_data_flags[i] & ERR_TXT_MALLOCED) \ + { \ + OPENSSL_free((p)->err_data[i]); \ + (p)->err_data[i]=NULL; \ + } \ + (p)->err_data_flags[i]=0; \ + } while(0) + +#define err_clear(p,i) \ + do { \ + (p)->err_flags[i]=0; \ + (p)->err_buffer[i]=0; \ + err_clear_data(p,i); \ + (p)->err_file[i]=NULL; \ + (p)->err_line[i]= -1; \ + } while(0) + +static void ERR_STATE_free(ERR_STATE *s) + { + int i; + + if (s == NULL) + return; + + for (i=0; i<ERR_NUM_ERRORS; i++) + { + err_clear_data(s,i); + } + OPENSSL_free(s); + } + +void ERR_load_ERR_strings(void) + { + err_fns_check(); +#ifndef OPENSSL_NO_ERR + err_load_strings(0,ERR_str_libraries); + err_load_strings(0,ERR_str_reasons); + err_load_strings(ERR_LIB_SYS,ERR_str_functs); + build_SYS_str_reasons(); + err_load_strings(ERR_LIB_SYS,SYS_str_reasons); +#endif + } + +static void err_load_strings(int lib, ERR_STRING_DATA *str) + { + while (str->error) + { + if (lib) + str->error|=ERR_PACK(lib,0,0); + ERRFN(err_set_item)(str); + str++; + } + } + +void ERR_load_strings(int lib, ERR_STRING_DATA *str) + { + ERR_load_ERR_strings(); + err_load_strings(lib, str); + } + +void ERR_unload_strings(int lib, ERR_STRING_DATA *str) + { + while (str->error) + { + if (lib) + str->error|=ERR_PACK(lib,0,0); + ERRFN(err_del_item)(str); + str++; + } + } + +void ERR_free_strings(void) + { + err_fns_check(); + ERRFN(err_del)(); + } + +/********************************************************/ + +void ERR_put_error(int lib, int func, int reason, const char *file, + int line) + { + ERR_STATE *es; + +#ifdef _OSD_POSIX + /* In the BS2000-OSD POSIX subsystem, the compiler generates + * path names in the form "*POSIX(/etc/passwd)". + * This dirty hack strips them to something sensible. + * @@@ We shouldn't modify a const string, though. + */ + if (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) { + char *end; + + /* Skip the "*POSIX(" prefix */ + file += sizeof("*POSIX(")-1; + end = &file[strlen(file)-1]; + if (*end == ')') + *end = '\0'; + /* Optional: use the basename of the path only. */ + if ((end = strrchr(file, '/')) != NULL) + file = &end[1]; + } +#endif + es=ERR_get_state(); + + es->top=(es->top+1)%ERR_NUM_ERRORS; + if (es->top == es->bottom) + es->bottom=(es->bottom+1)%ERR_NUM_ERRORS; + es->err_flags[es->top]=0; + es->err_buffer[es->top]=ERR_PACK(lib,func,reason); + es->err_file[es->top]=file; + es->err_line[es->top]=line; + err_clear_data(es,es->top); + } + +void ERR_clear_error(void) + { + int i; + ERR_STATE *es; + + es=ERR_get_state(); + + for (i=0; i<ERR_NUM_ERRORS; i++) + { + err_clear(es,i); + } + es->top=es->bottom=0; + } + + +unsigned long ERR_get_error(void) + { return(get_error_values(1,0,NULL,NULL,NULL,NULL)); } + +unsigned long ERR_get_error_line(const char **file, + int *line) + { return(get_error_values(1,0,file,line,NULL,NULL)); } + +unsigned long ERR_get_error_line_data(const char **file, int *line, + const char **data, int *flags) + { return(get_error_values(1,0,file,line,data,flags)); } + + +unsigned long ERR_peek_error(void) + { return(get_error_values(0,0,NULL,NULL,NULL,NULL)); } + +unsigned long ERR_peek_error_line(const char **file, int *line) + { return(get_error_values(0,0,file,line,NULL,NULL)); } + +unsigned long ERR_peek_error_line_data(const char **file, int *line, + const char **data, int *flags) + { return(get_error_values(0,0,file,line,data,flags)); } + + +unsigned long ERR_peek_last_error(void) + { return(get_error_values(0,1,NULL,NULL,NULL,NULL)); } + +unsigned long ERR_peek_last_error_line(const char **file, int *line) + { return(get_error_values(0,1,file,line,NULL,NULL)); } + +unsigned long ERR_peek_last_error_line_data(const char **file, int *line, + const char **data, int *flags) + { return(get_error_values(0,1,file,line,data,flags)); } + + +static unsigned long get_error_values(int inc, int top, const char **file, int *line, + const char **data, int *flags) + { + int i=0; + ERR_STATE *es; + unsigned long ret; + + es=ERR_get_state(); + + if (inc && top) + { + if (file) *file = ""; + if (line) *line = 0; + if (data) *data = ""; + if (flags) *flags = 0; + + return ERR_R_INTERNAL_ERROR; + } + + if (es->bottom == es->top) return 0; + if (top) + i=es->top; /* last error */ + else + i=(es->bottom+1)%ERR_NUM_ERRORS; /* first error */ + + ret=es->err_buffer[i]; + if (inc) + { + es->bottom=i; + es->err_buffer[i]=0; + } + + if ((file != NULL) && (line != NULL)) + { + if (es->err_file[i] == NULL) + { + *file="NA"; + if (line != NULL) *line=0; + } + else + { + *file=es->err_file[i]; + if (line != NULL) *line=es->err_line[i]; + } + } + + if (data == NULL) + { + if (inc) + { + err_clear_data(es, i); + } + } + else + { + if (es->err_data[i] == NULL) + { + *data=""; + if (flags != NULL) *flags=0; + } + else + { + *data=es->err_data[i]; + if (flags != NULL) *flags=es->err_data_flags[i]; + } + } + return ret; + } + +void ERR_error_string_n(unsigned long e, char *buf, size_t len) + { + char lsbuf[64], fsbuf[64], rsbuf[64]; + const char *ls,*fs,*rs; + unsigned long l,f,r; + + l=ERR_GET_LIB(e); + f=ERR_GET_FUNC(e); + r=ERR_GET_REASON(e); + + ls=ERR_lib_error_string(e); + fs=ERR_func_error_string(e); + rs=ERR_reason_error_string(e); + + if (ls == NULL) + BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l); + if (fs == NULL) + BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f); + if (rs == NULL) + BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r); + + BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf, + fs?fs:fsbuf, rs?rs:rsbuf); + if (strlen(buf) == len-1) + { + /* output may be truncated; make sure we always have 5 + * colon-separated fields, i.e. 4 colons ... */ +#define NUM_COLONS 4 + if (len > NUM_COLONS) /* ... if possible */ + { + int i; + char *s = buf; + + for (i = 0; i < NUM_COLONS; i++) + { + char *colon = strchr(s, ':'); + if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i) + { + /* set colon no. i at last possible position + * (buf[len-1] is the terminating 0)*/ + colon = &buf[len-1] - NUM_COLONS + i; + *colon = ':'; + } + s = colon + 1; + } + } + } + } + +/* BAD for multi-threading: uses a local buffer if ret == NULL */ +/* ERR_error_string_n should be used instead for ret != NULL + * as ERR_error_string cannot know how large the buffer is */ +char *ERR_error_string(unsigned long e, char *ret) + { + static char buf[256]; + + if (ret == NULL) ret=buf; + ERR_error_string_n(e, ret, 256); + + return ret; + } + +LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void) + { + err_fns_check(); + return ERRFN(err_get)(0); + } + +LHASH_OF(ERR_STATE) *ERR_get_err_state_table(void) + { + err_fns_check(); + return ERRFN(thread_get)(0); + } + +void ERR_release_err_state_table(LHASH_OF(ERR_STATE) **hash) + { + err_fns_check(); + ERRFN(thread_release)(hash); + } + +const char *ERR_lib_error_string(unsigned long e) + { + ERR_STRING_DATA d,*p; + unsigned long l; + + err_fns_check(); + l=ERR_GET_LIB(e); + d.error=ERR_PACK(l,0,0); + p=ERRFN(err_get_item)(&d); + return((p == NULL)?NULL:p->string); + } + +const char *ERR_func_error_string(unsigned long e) + { + ERR_STRING_DATA d,*p; + unsigned long l,f; + + err_fns_check(); + l=ERR_GET_LIB(e); + f=ERR_GET_FUNC(e); + d.error=ERR_PACK(l,f,0); + p=ERRFN(err_get_item)(&d); + return((p == NULL)?NULL:p->string); + } + +const char *ERR_reason_error_string(unsigned long e) + { + ERR_STRING_DATA d,*p=NULL; + unsigned long l,r; + + err_fns_check(); + l=ERR_GET_LIB(e); + r=ERR_GET_REASON(e); + d.error=ERR_PACK(l,0,r); + p=ERRFN(err_get_item)(&d); + if (!p) + { + d.error=ERR_PACK(0,0,r); + p=ERRFN(err_get_item)(&d); + } + return((p == NULL)?NULL:p->string); + } + +void ERR_remove_thread_state(const CRYPTO_THREADID *id) + { + ERR_STATE tmp; + + if (id) + CRYPTO_THREADID_cpy(&tmp.tid, id); + else + CRYPTO_THREADID_current(&tmp.tid); + err_fns_check(); + /* thread_del_item automatically destroys the LHASH if the number of + * items reaches zero. */ + ERRFN(thread_del_item)(&tmp); + } + +#ifndef OPENSSL_NO_DEPRECATED +void ERR_remove_state(unsigned long pid) + { + ERR_remove_thread_state(NULL); + } +#endif + +ERR_STATE *ERR_get_state(void) + { + static ERR_STATE fallback; + ERR_STATE *ret,tmp,*tmpp=NULL; + int i; + CRYPTO_THREADID tid; + + err_fns_check(); + CRYPTO_THREADID_current(&tid); + CRYPTO_THREADID_cpy(&tmp.tid, &tid); + ret=ERRFN(thread_get_item)(&tmp); + + /* ret == the error state, if NULL, make a new one */ + if (ret == NULL) + { + ret=(ERR_STATE *)OPENSSL_malloc(sizeof(ERR_STATE)); + if (ret == NULL) return(&fallback); + CRYPTO_THREADID_cpy(&ret->tid, &tid); + ret->top=0; + ret->bottom=0; + for (i=0; i<ERR_NUM_ERRORS; i++) + { + ret->err_data[i]=NULL; + ret->err_data_flags[i]=0; + } + tmpp = ERRFN(thread_set_item)(ret); + /* To check if insertion failed, do a get. */ + if (ERRFN(thread_get_item)(ret) != ret) + { + ERR_STATE_free(ret); /* could not insert it */ + return(&fallback); + } + /* If a race occured in this function and we came second, tmpp + * is the first one that we just replaced. */ + if (tmpp) + ERR_STATE_free(tmpp); + } + return ret; + } + +int ERR_get_next_error_library(void) + { + err_fns_check(); + return ERRFN(get_next_lib)(); + } + +void ERR_set_error_data(char *data, int flags) + { + ERR_STATE *es; + int i; + + es=ERR_get_state(); + + i=es->top; + if (i == 0) + i=ERR_NUM_ERRORS-1; + + err_clear_data(es,i); + es->err_data[i]=data; + es->err_data_flags[i]=flags; + } + +void ERR_add_error_data(int num, ...) + { + va_list args; + va_start(args, num); + ERR_add_error_vdata(num, args); + va_end(args); + } + +void ERR_add_error_vdata(int num, va_list args) + { + int i,n,s; + char *str,*p,*a; + + s=80; + str=OPENSSL_malloc(s+1); + if (str == NULL) return; + str[0]='\0'; + + n=0; + for (i=0; i<num; i++) + { + a=va_arg(args, char*); + /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */ + if (a != NULL) + { + n+=strlen(a); + if (n > s) + { + s=n+20; + p=OPENSSL_realloc(str,s+1); + if (p == NULL) + { + OPENSSL_free(str); + return; + } + else + str=p; + } + BUF_strlcat(str,a,(size_t)s+1); + } + } + ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING); + } + +int ERR_set_mark(void) + { + ERR_STATE *es; + + es=ERR_get_state(); + + if (es->bottom == es->top) return 0; + es->err_flags[es->top]|=ERR_FLAG_MARK; + return 1; + } + +int ERR_pop_to_mark(void) + { + ERR_STATE *es; + + es=ERR_get_state(); + + while(es->bottom != es->top + && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) + { + err_clear(es,es->top); + es->top-=1; + if (es->top == -1) es->top=ERR_NUM_ERRORS-1; + } + + if (es->bottom == es->top) return 0; + es->err_flags[es->top]&=~ERR_FLAG_MARK; + return 1; + } |