/* 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) 1998-2001 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 #include #include #include "cryptlib.h" #include #include #include #include #include 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_ENGINE,0,0) ,"engine routines"}, {ERR_PACK(ERR_LIB_OCSP,0,0) ,"OCSP 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_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 *(*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 *(*cb_thread_get)(int create); void (*cb_thread_release)(LHASH **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 *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 *int_thread_get(int create); static void int_thread_release(LHASH **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 *int_error_hash = NULL; static LHASH *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 err_hash(ERR_STRING_DATA *a); */ static unsigned long err_hash(const void *a_void); /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b); */ static int err_cmp(const void *a_void, const void *b_void); /* static unsigned long pid_hash(ERR_STATE *pid); */ static unsigned long pid_hash(const void *pid_void); /* static int pid_cmp(ERR_STATE *a,ERR_STATE *pid); */ static int pid_cmp(const void *a_void,const void *pid_void); 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 LHASH *int_err_get(int create) { LHASH *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_new(err_hash, err_cmp); 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_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 *hash; err_fns_check(); hash = ERRFN(err_get)(0); if (!hash) return NULL; CRYPTO_r_lock(CRYPTO_LOCK_ERR); p = (ERR_STRING_DATA *)lh_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 *hash; err_fns_check(); hash = ERRFN(err_get)(1); if (!hash) return NULL; CRYPTO_w_lock(CRYPTO_LOCK_ERR); p = (ERR_STRING_DATA *)lh_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 *hash; err_fns_check(); hash = ERRFN(err_get)(0); if (!hash) return NULL; CRYPTO_w_lock(CRYPTO_LOCK_ERR); p = (ERR_STRING_DATA *)lh_delete(hash, d); CRYPTO_w_unlock(CRYPTO_LOCK_ERR); return p; } static LHASH *int_thread_get(int create) { LHASH *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_new(pid_hash, pid_cmp); 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 **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 *hash; err_fns_check(); hash = ERRFN(thread_get)(0); if (!hash) return NULL; CRYPTO_r_lock(CRYPTO_LOCK_ERR); p = (ERR_STATE *)lh_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 *hash; err_fns_check(); hash = ERRFN(thread_get)(1); if (!hash) return NULL; CRYPTO_w_lock(CRYPTO_LOCK_ERR); p = (ERR_STATE *)lh_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 *hash; err_fns_check(); hash = ERRFN(thread_get)(0); if (!hash) return; CRYPTO_w_lock(CRYPTO_LOCK_ERR); p = (ERR_STATE *)lh_delete(hash, d); /* make sure we don't leak memory */ if (int_thread_hash_references == 1 && int_thread_hash && (lh_num_items(int_thread_hash) == 0)) { lh_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; if (!init) return; CRYPTO_w_lock(CRYPTO_LOCK_ERR); 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; ierror) { 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; itop=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 *ERR_get_string_table(void) { err_fns_check(); return ERRFN(err_get)(0); } LHASH *ERR_get_err_state_table(void) { err_fns_check(); return ERRFN(thread_get)(0); } void ERR_release_err_state_table(LHASH **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); } /* static unsigned long err_hash(ERR_STRING_DATA *a) */ static unsigned long err_hash(const void *a_void) { unsigned long ret,l; l=((const ERR_STRING_DATA *)a_void)->error; ret=l^ERR_GET_LIB(l)^ERR_GET_FUNC(l); return(ret^ret%19*13); } /* static int err_cmp(ERR_STRING_DATA *a, ERR_STRING_DATA *b) */ static int err_cmp(const void *a_void, const void *b_void) { return((int)(((const ERR_STRING_DATA *)a_void)->error - ((const ERR_STRING_DATA *)b_void)->error)); } /* static unsigned long pid_hash(ERR_STATE *a) */ static unsigned long pid_hash(const void *a_void) { return(((const ERR_STATE *)a_void)->pid*13); } /* static int pid_cmp(ERR_STATE *a, ERR_STATE *b) */ static int pid_cmp(const void *a_void, const void *b_void) { return((int)((long)((const ERR_STATE *)a_void)->pid - (long)((const ERR_STATE *)b_void)->pid)); } void ERR_remove_state(unsigned long pid) { ERR_STATE tmp; err_fns_check(); if (pid == 0) pid=(unsigned long)CRYPTO_thread_id(); tmp.pid=pid; /* thread_del_item automatically destroys the LHASH if the number of * items reaches zero. */ ERRFN(thread_del_item)(&tmp); } ERR_STATE *ERR_get_state(void) { static ERR_STATE fallback; ERR_STATE *ret,tmp,*tmpp=NULL; int i; unsigned long pid; err_fns_check(); pid=(unsigned long)CRYPTO_thread_id(); tmp.pid=pid; 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); ret->pid=pid; ret->top=0; ret->bottom=0; for (i=0; ierr_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; int i,n,s; char *str,*p,*a; s=80; str=OPENSSL_malloc(s+1); if (str == NULL) return; str[0]='\0'; va_start(args, num); n=0; for (i=0; i */ if (a != NULL) { n+=strlen(a); if (n > s) { s=n+20; p=OPENSSL_realloc(str,s+1); if (p == NULL) { OPENSSL_free(str); goto err; } else str=p; } BUF_strlcat(str,a,(size_t)s+1); } } ERR_set_error_data(str,ERR_TXT_MALLOCED|ERR_TXT_STRING); err: va_end(args); } 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; } a id='n789' href='#n789'>789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130