From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Fri, 30 Apr 2021 00:33:56 +0200 Subject: initial/final commit --- openssl-1.1.0h/crypto/err/err.c | 793 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 793 insertions(+) create mode 100644 openssl-1.1.0h/crypto/err/err.c (limited to 'openssl-1.1.0h/crypto/err/err.c') diff --git a/openssl-1.1.0h/crypto/err/err.c b/openssl-1.1.0h/crypto/err/err.c new file mode 100644 index 0000000..c439928 --- /dev/null +++ b/openssl-1.1.0h/crypto/err/err.c @@ -0,0 +1,793 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include +#include +#include +#include +#include +#include +#include +#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_ECDSA, 0, 0), "ECDSA routines"}, + {ERR_PACK(ERR_LIB_ECDH, 0, 0), "ECDH 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_UI, 0, 0), "UI 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"}, + {ERR_PACK(ERR_LIB_CT, 0, 0), "CT routines"}, + {ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"}, + {ERR_PACK(ERR_LIB_KDF, 0, 0), "KDF 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"}, + {ERR_PACK(0, SYS_F_GETADDRINFO, 0), "getaddrinfo"}, + {ERR_PACK(0, SYS_F_GETNAMEINFO, 0), "getnameinfo"}, + {ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"}, + {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"}, + {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"}, + {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"}, + {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"}, + {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_EC_LIB, "EC lib"}, + {ERR_R_BIO_LIB, "BIO lib"}, + {ERR_R_PKCS7_LIB, "PKCS7 lib"}, + {ERR_R_X509V3_LIB, "X509V3 lib"}, + {ERR_R_ENGINE_LIB, "ENGINE lib"}, + {ERR_R_ECDSA_LIB, "ECDSA lib"}, + + {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"}, + {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"}, + {ERR_R_INIT_FAIL, "init fail"}, + + {0, NULL}, +}; +#endif + +static CRYPTO_ONCE err_init = CRYPTO_ONCE_STATIC_INIT; +static int set_err_thread_local; +static CRYPTO_THREAD_LOCAL err_thread_local; + +static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT; +static CRYPTO_RWLOCK *err_string_lock; + +static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *); + +/* + * The internal state + */ + +static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL; +static int int_err_library_number = ERR_LIB_USER; + +static unsigned long get_error_values(int inc, int top, const char **file, + int *line, const char **data, + int *flags); + +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 int err_string_data_cmp(const ERR_STRING_DATA *a, + const ERR_STRING_DATA *b) +{ + return (int)(a->error - b->error); +} + +static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d) +{ + ERR_STRING_DATA *p = NULL; + + CRYPTO_THREAD_read_lock(err_string_lock); + if (int_error_hash != NULL) + p = lh_ERR_STRING_DATA_retrieve(int_error_hash, d); + CRYPTO_THREAD_unlock(err_string_lock); + + return p; +} + +#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]; + static int init = 1; + int i; + + CRYPTO_THREAD_write_lock(err_string_lock); + if (!init) { + CRYPTO_THREAD_unlock(err_string_lock); + 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]); + if (openssl_strerror_r(i, *dest, sizeof(*dest))) + 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_THREAD_unlock(err_string_lock); +} +#endif + +#define err_clear_data(p,i) \ + do { \ + if ((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); +} + +DEFINE_RUN_ONCE_STATIC(do_err_strings_init) +{ + OPENSSL_init_crypto(0, NULL); + err_string_lock = CRYPTO_THREAD_lock_new(); + return err_string_lock != NULL; +} + +void err_cleanup(void) +{ + if (set_err_thread_local != 0) + CRYPTO_THREAD_cleanup_local(&err_thread_local); + CRYPTO_THREAD_lock_free(err_string_lock); + err_string_lock = NULL; +} + +int ERR_load_ERR_strings(void) +{ +#ifndef OPENSSL_NO_ERR + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) + return 0; + + 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 + return 1; +} + +static void err_load_strings(int lib, ERR_STRING_DATA *str) +{ + CRYPTO_THREAD_write_lock(err_string_lock); + if (int_error_hash == NULL) + int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash, + err_string_data_cmp); + if (int_error_hash != NULL) { + for (; str->error; str++) { + if (lib) + str->error |= ERR_PACK(lib, 0, 0); + (void)lh_ERR_STRING_DATA_insert(int_error_hash, str); + } + } + CRYPTO_THREAD_unlock(err_string_lock); +} + +int ERR_load_strings(int lib, ERR_STRING_DATA *str) +{ + if (ERR_load_ERR_strings() == 0) + return 0; + err_load_strings(lib, str); + return 1; +} + +int ERR_unload_strings(int lib, ERR_STRING_DATA *str) +{ + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) + return 0; + + CRYPTO_THREAD_write_lock(err_string_lock); + if (int_error_hash != NULL) { + for (; str->error; str++) { + if (lib) + str->error |= ERR_PACK(lib, 0, 0); + (void)lh_ERR_STRING_DATA_delete(int_error_hash, str); + } + } + CRYPTO_THREAD_unlock(err_string_lock); + + return 1; +} + +void err_free_strings_int(void) +{ + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) + return; + + CRYPTO_THREAD_write_lock(err_string_lock); + lh_ERR_STRING_DATA_free(int_error_hash); + int_error_hash = NULL; + CRYPTO_THREAD_unlock(err_string_lock); +} + +/********************************************************/ + +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(); + if (es == NULL) + return; + + 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(); + if (es == NULL) + return; + + 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 (es == NULL) + return 0; + + 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; + + if (len == 0) + return; + + 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; + } + } + } +} + +/* + * 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; +} + +const char *ERR_lib_error_string(unsigned long e) +{ + ERR_STRING_DATA d, *p; + unsigned long l; + + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { + return NULL; + } + + l = ERR_GET_LIB(e); + d.error = ERR_PACK(l, 0, 0); + p = int_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; + + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { + return NULL; + } + + l = ERR_GET_LIB(e); + f = ERR_GET_FUNC(e); + d.error = ERR_PACK(l, f, 0); + p = int_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; + + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { + return NULL; + } + + l = ERR_GET_LIB(e); + r = ERR_GET_REASON(e); + d.error = ERR_PACK(l, 0, r); + p = int_err_get_item(&d); + if (!p) { + d.error = ERR_PACK(0, 0, r); + p = int_err_get_item(&d); + } + return ((p == NULL) ? NULL : p->string); +} + +void err_delete_thread_state(void) +{ + ERR_STATE *state = CRYPTO_THREAD_get_local(&err_thread_local); + if (state == NULL) + return; + + CRYPTO_THREAD_set_local(&err_thread_local, NULL); + ERR_STATE_free(state); +} + +#if OPENSSL_API_COMPAT < 0x10100000L +void ERR_remove_thread_state(void *dummy) +{ +} +#endif + +#if OPENSSL_API_COMPAT < 0x10000000L +void ERR_remove_state(unsigned long pid) +{ +} +#endif + +DEFINE_RUN_ONCE_STATIC(err_do_init) +{ + set_err_thread_local = 1; + return CRYPTO_THREAD_init_local(&err_thread_local, NULL); +} + +ERR_STATE *ERR_get_state(void) +{ + ERR_STATE *state = NULL; + + if (!RUN_ONCE(&err_init, err_do_init)) + return NULL; + + /* + * If base OPENSSL_init_crypto() hasn't been called yet, be sure to call + * it now to avoid state to be doubly allocated and thereby leak memory. + * Needed on any platform that doesn't define OPENSSL_USE_NODELETE. + */ + if (!OPENSSL_init_crypto(0, NULL)) + return NULL; + + state = CRYPTO_THREAD_get_local(&err_thread_local); + + if (state == NULL) { + state = OPENSSL_zalloc(sizeof(*state)); + if (state == NULL) + return NULL; + + if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE) + || !CRYPTO_THREAD_set_local(&err_thread_local, state)) { + ERR_STATE_free(state); + return NULL; + } + + /* Ignore failures from these */ + OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); + } + + return state; +} + +int ERR_get_next_error_library(void) +{ + int ret; + + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { + return 0; + } + + CRYPTO_THREAD_write_lock(err_string_lock); + ret = int_err_library_number++; + CRYPTO_THREAD_unlock(err_string_lock); + return ret; +} + +void ERR_set_error_data(char *data, int flags) +{ + ERR_STATE *es; + int i; + + es = ERR_get_state(); + if (es == NULL) + return; + + i = es->top; + + 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 */ + 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; + } + str = p; + } + OPENSSL_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 == NULL) + return 0; + + 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(); + if (es == NULL) + return 0; + + 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; +} -- cgit v1.2.3