/* 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; }