2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
13 #include "internal/cryptlib_int.h"
14 #include "internal/err.h"
15 #include "internal/err_int.h"
16 #include <openssl/err.h>
17 #include <openssl/crypto.h>
18 #include <openssl/buffer.h>
19 #include <openssl/bio.h>
20 #include <openssl/opensslconf.h>
21 #include "internal/thread_once.h"
22 #include "internal/ctype.h"
24 static int err_load_strings(const ERR_STRING_DATA *str);
26 static void ERR_STATE_free(ERR_STATE *s);
27 #ifndef OPENSSL_NO_ERR
28 static ERR_STRING_DATA ERR_str_libraries[] = {
29 {ERR_PACK(ERR_LIB_NONE, 0, 0), "unknown library"},
30 {ERR_PACK(ERR_LIB_SYS, 0, 0), "system library"},
31 {ERR_PACK(ERR_LIB_BN, 0, 0), "bignum routines"},
32 {ERR_PACK(ERR_LIB_RSA, 0, 0), "rsa routines"},
33 {ERR_PACK(ERR_LIB_DH, 0, 0), "Diffie-Hellman routines"},
34 {ERR_PACK(ERR_LIB_EVP, 0, 0), "digital envelope routines"},
35 {ERR_PACK(ERR_LIB_BUF, 0, 0), "memory buffer routines"},
36 {ERR_PACK(ERR_LIB_OBJ, 0, 0), "object identifier routines"},
37 {ERR_PACK(ERR_LIB_PEM, 0, 0), "PEM routines"},
38 {ERR_PACK(ERR_LIB_DSA, 0, 0), "dsa routines"},
39 {ERR_PACK(ERR_LIB_X509, 0, 0), "x509 certificate routines"},
40 {ERR_PACK(ERR_LIB_ASN1, 0, 0), "asn1 encoding routines"},
41 {ERR_PACK(ERR_LIB_CONF, 0, 0), "configuration file routines"},
42 {ERR_PACK(ERR_LIB_CRYPTO, 0, 0), "common libcrypto routines"},
43 {ERR_PACK(ERR_LIB_EC, 0, 0), "elliptic curve routines"},
44 {ERR_PACK(ERR_LIB_ECDSA, 0, 0), "ECDSA routines"},
45 {ERR_PACK(ERR_LIB_ECDH, 0, 0), "ECDH routines"},
46 {ERR_PACK(ERR_LIB_SSL, 0, 0), "SSL routines"},
47 {ERR_PACK(ERR_LIB_BIO, 0, 0), "BIO routines"},
48 {ERR_PACK(ERR_LIB_PKCS7, 0, 0), "PKCS7 routines"},
49 {ERR_PACK(ERR_LIB_X509V3, 0, 0), "X509 V3 routines"},
50 {ERR_PACK(ERR_LIB_PKCS12, 0, 0), "PKCS12 routines"},
51 {ERR_PACK(ERR_LIB_RAND, 0, 0), "random number generator"},
52 {ERR_PACK(ERR_LIB_DSO, 0, 0), "DSO support routines"},
53 {ERR_PACK(ERR_LIB_TS, 0, 0), "time stamp routines"},
54 {ERR_PACK(ERR_LIB_ENGINE, 0, 0), "engine routines"},
55 {ERR_PACK(ERR_LIB_OCSP, 0, 0), "OCSP routines"},
56 {ERR_PACK(ERR_LIB_UI, 0, 0), "UI routines"},
57 {ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"},
58 {ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"},
59 {ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"},
60 {ERR_PACK(ERR_LIB_CT, 0, 0), "CT routines"},
61 {ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"},
62 {ERR_PACK(ERR_LIB_KDF, 0, 0), "KDF routines"},
63 {ERR_PACK(ERR_LIB_OSSL_STORE, 0, 0), "STORE routines"},
64 {ERR_PACK(ERR_LIB_SM2, 0, 0), "SM2 routines"},
68 static ERR_STRING_DATA ERR_str_functs[] = {
69 {ERR_PACK(0, SYS_F_FOPEN, 0), "fopen"},
70 {ERR_PACK(0, SYS_F_CONNECT, 0), "connect"},
71 {ERR_PACK(0, SYS_F_GETSERVBYNAME, 0), "getservbyname"},
72 {ERR_PACK(0, SYS_F_SOCKET, 0), "socket"},
73 {ERR_PACK(0, SYS_F_IOCTLSOCKET, 0), "ioctlsocket"},
74 {ERR_PACK(0, SYS_F_BIND, 0), "bind"},
75 {ERR_PACK(0, SYS_F_LISTEN, 0), "listen"},
76 {ERR_PACK(0, SYS_F_ACCEPT, 0), "accept"},
77 # ifdef OPENSSL_SYS_WINDOWS
78 {ERR_PACK(0, SYS_F_WSASTARTUP, 0), "WSAstartup"},
80 {ERR_PACK(0, SYS_F_OPENDIR, 0), "opendir"},
81 {ERR_PACK(0, SYS_F_FREAD, 0), "fread"},
82 {ERR_PACK(0, SYS_F_GETADDRINFO, 0), "getaddrinfo"},
83 {ERR_PACK(0, SYS_F_GETNAMEINFO, 0), "getnameinfo"},
84 {ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"},
85 {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"},
86 {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"},
87 {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"},
88 {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"},
89 {ERR_PACK(0, SYS_F_OPEN, 0), "open"},
90 {ERR_PACK(0, SYS_F_CLOSE, 0), "close"},
91 {ERR_PACK(0, SYS_F_IOCTL, 0), "ioctl"},
92 {ERR_PACK(0, SYS_F_STAT, 0), "stat"},
93 {ERR_PACK(0, SYS_F_FCNTL, 0), "fcntl"},
94 {ERR_PACK(0, SYS_F_FSTAT, 0), "fstat"},
98 static ERR_STRING_DATA ERR_str_reasons[] = {
99 {ERR_R_SYS_LIB, "system lib"},
100 {ERR_R_BN_LIB, "BN lib"},
101 {ERR_R_RSA_LIB, "RSA lib"},
102 {ERR_R_DH_LIB, "DH lib"},
103 {ERR_R_EVP_LIB, "EVP lib"},
104 {ERR_R_BUF_LIB, "BUF lib"},
105 {ERR_R_OBJ_LIB, "OBJ lib"},
106 {ERR_R_PEM_LIB, "PEM lib"},
107 {ERR_R_DSA_LIB, "DSA lib"},
108 {ERR_R_X509_LIB, "X509 lib"},
109 {ERR_R_ASN1_LIB, "ASN1 lib"},
110 {ERR_R_EC_LIB, "EC lib"},
111 {ERR_R_BIO_LIB, "BIO lib"},
112 {ERR_R_PKCS7_LIB, "PKCS7 lib"},
113 {ERR_R_X509V3_LIB, "X509V3 lib"},
114 {ERR_R_ENGINE_LIB, "ENGINE lib"},
115 {ERR_R_UI_LIB, "UI lib"},
116 {ERR_R_OSSL_STORE_LIB, "STORE lib"},
117 {ERR_R_ECDSA_LIB, "ECDSA lib"},
119 {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"},
120 {ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"},
122 {ERR_R_FATAL, "fatal"},
123 {ERR_R_MALLOC_FAILURE, "malloc failure"},
124 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED,
125 "called a function you should not call"},
126 {ERR_R_PASSED_NULL_PARAMETER, "passed a null parameter"},
127 {ERR_R_INTERNAL_ERROR, "internal error"},
128 {ERR_R_DISABLED, "called a function that was disabled at compile-time"},
129 {ERR_R_INIT_FAIL, "init fail"},
130 {ERR_R_OPERATION_FAIL, "operation fail"},
136 static CRYPTO_ONCE err_init = CRYPTO_ONCE_STATIC_INIT;
137 static int set_err_thread_local;
138 static CRYPTO_THREAD_LOCAL err_thread_local;
140 static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT;
141 static CRYPTO_RWLOCK *err_string_lock;
143 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
149 static LHASH_OF(ERR_STRING_DATA) *int_error_hash = NULL;
150 static int int_err_library_number = ERR_LIB_USER;
152 static unsigned long get_error_values(int inc, int top, const char **file,
153 int *line, const char **data,
156 static unsigned long err_string_data_hash(const ERR_STRING_DATA *a)
158 unsigned long ret, l;
161 ret = l ^ ERR_GET_LIB(l) ^ ERR_GET_FUNC(l);
162 return (ret ^ ret % 19 * 13);
165 static int err_string_data_cmp(const ERR_STRING_DATA *a,
166 const ERR_STRING_DATA *b)
168 if (a->error == b->error)
170 return a->error > b->error ? 1 : -1;
173 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
175 ERR_STRING_DATA *p = NULL;
177 CRYPTO_THREAD_read_lock(err_string_lock);
178 p = lh_ERR_STRING_DATA_retrieve(int_error_hash, d);
179 CRYPTO_THREAD_unlock(err_string_lock);
184 #ifndef OPENSSL_NO_ERR
185 /* A measurement on Linux 2018-11-21 showed about 3.5kib */
186 # define SPACE_SYS_STR_REASONS 4 * 1024
187 # define NUM_SYS_STR_REASONS 127
189 static ERR_STRING_DATA SYS_str_reasons[NUM_SYS_STR_REASONS + 1];
191 * SYS_str_reasons is filled with copies of strerror() results at
192 * initialization. 'errno' values up to 127 should cover all usual errors,
193 * others will be displayed numerically by ERR_error_string. It is crucial
194 * that we have something for each reason code that occurs in
195 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
196 * which always gets an errno value and never one of those 'standard' reason
200 static void build_SYS_str_reasons(void)
202 /* OPENSSL_malloc cannot be used here, use static storage instead */
203 static char strerror_pool[SPACE_SYS_STR_REASONS];
204 char *cur = strerror_pool;
209 CRYPTO_THREAD_write_lock(err_string_lock);
211 CRYPTO_THREAD_unlock(err_string_lock);
215 for (i = 1; i <= NUM_SYS_STR_REASONS; i++) {
216 ERR_STRING_DATA *str = &SYS_str_reasons[i - 1];
218 str->error = ERR_PACK(ERR_LIB_SYS, 0, i);
219 if (str->string == NULL) {
220 if (openssl_strerror_r(i, cur, sizeof(strerror_pool) - cnt)) {
221 size_t l = strlen(cur);
225 if (cnt > sizeof(strerror_pool))
226 cnt = sizeof(strerror_pool);
230 * VMS has an unusual quirk of adding spaces at the end of
231 * some (most? all?) messages. Lets trim them off.
233 while (ossl_isspace(cur[-1])) {
241 if (str->string == NULL)
242 str->string = "unknown";
246 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
247 * required by ERR_load_strings.
252 CRYPTO_THREAD_unlock(err_string_lock);
253 err_load_strings(SYS_str_reasons);
257 #define err_clear_data(p, i) \
259 if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) {\
260 OPENSSL_free((p)->err_data[i]); \
261 (p)->err_data[i] = NULL; \
263 (p)->err_data_flags[i] = 0; \
266 #define err_clear(p, i) \
268 err_clear_data(p, i); \
269 (p)->err_flags[i] = 0; \
270 (p)->err_buffer[i] = 0; \
271 (p)->err_file[i] = NULL; \
272 (p)->err_line[i] = -1; \
275 static void ERR_STATE_free(ERR_STATE *s)
281 for (i = 0; i < ERR_NUM_ERRORS; i++) {
282 err_clear_data(s, i);
287 DEFINE_RUN_ONCE_STATIC(do_err_strings_init)
289 if (!OPENSSL_init_crypto(0, NULL))
291 err_string_lock = CRYPTO_THREAD_lock_new();
292 if (err_string_lock == NULL)
294 int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash,
295 err_string_data_cmp);
296 if (int_error_hash == NULL) {
297 CRYPTO_THREAD_lock_free(err_string_lock);
298 err_string_lock = NULL;
304 void err_cleanup(void)
306 if (set_err_thread_local != 0)
307 CRYPTO_THREAD_cleanup_local(&err_thread_local);
308 CRYPTO_THREAD_lock_free(err_string_lock);
309 err_string_lock = NULL;
310 lh_ERR_STRING_DATA_free(int_error_hash);
311 int_error_hash = NULL;
315 * Legacy; pack in the library.
317 static void err_patch(int lib, ERR_STRING_DATA *str)
319 unsigned long plib = ERR_PACK(lib, 0, 0);
321 for (; str->error != 0; str++)
326 * Hash in |str| error strings. Assumes the URN_ONCE was done.
328 static int err_load_strings(const ERR_STRING_DATA *str)
330 CRYPTO_THREAD_write_lock(err_string_lock);
331 for (; str->error; str++)
332 (void)lh_ERR_STRING_DATA_insert(int_error_hash,
333 (ERR_STRING_DATA *)str);
334 CRYPTO_THREAD_unlock(err_string_lock);
338 int ERR_load_ERR_strings(void)
340 #ifndef OPENSSL_NO_ERR
341 if (!RUN_ONCE(&err_string_init, do_err_strings_init))
344 err_load_strings(ERR_str_libraries);
345 err_load_strings(ERR_str_reasons);
346 err_patch(ERR_LIB_SYS, ERR_str_functs);
347 err_load_strings(ERR_str_functs);
348 build_SYS_str_reasons();
353 int ERR_load_strings(int lib, ERR_STRING_DATA *str)
355 if (ERR_load_ERR_strings() == 0)
359 err_load_strings(str);
363 int ERR_load_strings_const(const ERR_STRING_DATA *str)
365 if (ERR_load_ERR_strings() == 0)
367 err_load_strings(str);
371 int ERR_unload_strings(int lib, ERR_STRING_DATA *str)
373 if (!RUN_ONCE(&err_string_init, do_err_strings_init))
376 CRYPTO_THREAD_write_lock(err_string_lock);
378 * We don't need to ERR_PACK the lib, since that was done (to
379 * the table) when it was loaded.
381 for (; str->error; str++)
382 (void)lh_ERR_STRING_DATA_delete(int_error_hash, str);
383 CRYPTO_THREAD_unlock(err_string_lock);
388 void err_free_strings_int(void)
390 if (!RUN_ONCE(&err_string_init, do_err_strings_init))
394 /********************************************************/
396 void ERR_put_error(int lib, int func, int reason, const char *file, int line)
402 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
403 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
404 * something sensible. @@@ We shouldn't modify a const string, though.
406 if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
409 /* Skip the "*POSIX(" prefix */
410 file += sizeof("*POSIX(") - 1;
411 end = &file[strlen(file) - 1];
414 /* Optional: use the basename of the path only. */
415 if ((end = strrchr(file, '/')) != NULL)
419 es = ERR_get_state();
423 es->top = (es->top + 1) % ERR_NUM_ERRORS;
424 if (es->top == es->bottom)
425 es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;
426 es->err_flags[es->top] = 0;
427 es->err_buffer[es->top] = ERR_PACK(lib, func, reason);
428 es->err_file[es->top] = file;
429 es->err_line[es->top] = line;
430 err_clear_data(es, es->top);
433 void ERR_clear_error(void)
438 es = ERR_get_state();
442 for (i = 0; i < ERR_NUM_ERRORS; i++) {
445 es->top = es->bottom = 0;
448 unsigned long ERR_get_error(void)
450 return get_error_values(1, 0, NULL, NULL, NULL, NULL);
453 unsigned long ERR_get_error_line(const char **file, int *line)
455 return get_error_values(1, 0, file, line, NULL, NULL);
458 unsigned long ERR_get_error_line_data(const char **file, int *line,
459 const char **data, int *flags)
461 return get_error_values(1, 0, file, line, data, flags);
464 unsigned long ERR_peek_error(void)
466 return get_error_values(0, 0, NULL, NULL, NULL, NULL);
469 unsigned long ERR_peek_error_line(const char **file, int *line)
471 return get_error_values(0, 0, file, line, NULL, NULL);
474 unsigned long ERR_peek_error_line_data(const char **file, int *line,
475 const char **data, int *flags)
477 return get_error_values(0, 0, file, line, data, flags);
480 unsigned long ERR_peek_last_error(void)
482 return get_error_values(0, 1, NULL, NULL, NULL, NULL);
485 unsigned long ERR_peek_last_error_line(const char **file, int *line)
487 return get_error_values(0, 1, file, line, NULL, NULL);
490 unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
491 const char **data, int *flags)
493 return get_error_values(0, 1, file, line, data, flags);
496 static unsigned long get_error_values(int inc, int top, const char **file,
497 int *line, const char **data,
504 es = ERR_get_state();
518 return ERR_R_INTERNAL_ERROR;
521 if (es->bottom == es->top)
524 i = es->top; /* last error */
526 i = (es->bottom + 1) % ERR_NUM_ERRORS; /* first error */
528 ret = es->err_buffer[i];
531 es->err_buffer[i] = 0;
534 if (file != NULL && line != NULL) {
535 if (es->err_file[i] == NULL) {
539 *file = es->err_file[i];
540 *line = es->err_line[i];
546 err_clear_data(es, i);
549 if (es->err_data[i] == NULL) {
554 *data = es->err_data[i];
556 *flags = es->err_data_flags[i];
562 void ERR_error_string_n(unsigned long e, char *buf, size_t len)
564 char lsbuf[64], fsbuf[64], rsbuf[64];
565 const char *ls, *fs, *rs;
566 unsigned long l, f, r;
572 ls = ERR_lib_error_string(e);
574 BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l);
578 fs = ERR_func_error_string(e);
581 BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f);
585 rs = ERR_reason_error_string(e);
586 r = ERR_GET_REASON(e);
588 BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r);
592 BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls, fs, rs);
593 if (strlen(buf) == len - 1) {
594 /* Didn't fit; use a minimal format. */
595 BIO_snprintf(buf, len, "err:%lx:%lx:%lx:%lx", e, l, f, r);
600 * ERR_error_string_n should be used instead for ret != NULL as
601 * ERR_error_string cannot know how large the buffer is
603 char *ERR_error_string(unsigned long e, char *ret)
605 static char buf[256];
609 ERR_error_string_n(e, ret, (int)sizeof(buf));
613 const char *ERR_lib_error_string(unsigned long e)
615 ERR_STRING_DATA d, *p;
618 if (!RUN_ONCE(&err_string_init, do_err_strings_init)) {
623 d.error = ERR_PACK(l, 0, 0);
624 p = int_err_get_item(&d);
625 return ((p == NULL) ? NULL : p->string);
628 const char *ERR_func_error_string(unsigned long e)
630 ERR_STRING_DATA d, *p;
633 if (!RUN_ONCE(&err_string_init, do_err_strings_init)) {
639 d.error = ERR_PACK(l, f, 0);
640 p = int_err_get_item(&d);
641 return ((p == NULL) ? NULL : p->string);
644 const char *ERR_reason_error_string(unsigned long e)
646 ERR_STRING_DATA d, *p = NULL;
649 if (!RUN_ONCE(&err_string_init, do_err_strings_init)) {
654 r = ERR_GET_REASON(e);
655 d.error = ERR_PACK(l, 0, r);
656 p = int_err_get_item(&d);
658 d.error = ERR_PACK(0, 0, r);
659 p = int_err_get_item(&d);
661 return ((p == NULL) ? NULL : p->string);
664 void err_delete_thread_state(void)
666 ERR_STATE *state = CRYPTO_THREAD_get_local(&err_thread_local);
670 CRYPTO_THREAD_set_local(&err_thread_local, NULL);
671 ERR_STATE_free(state);
674 #if OPENSSL_API_COMPAT < 0x10100000L
675 void ERR_remove_thread_state(void *dummy)
680 #if OPENSSL_API_COMPAT < 0x10000000L
681 void ERR_remove_state(unsigned long pid)
686 DEFINE_RUN_ONCE_STATIC(err_do_init)
688 set_err_thread_local = 1;
689 return CRYPTO_THREAD_init_local(&err_thread_local, NULL);
692 ERR_STATE *ERR_get_state(void)
696 if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL))
699 if (!RUN_ONCE(&err_init, err_do_init))
702 state = CRYPTO_THREAD_get_local(&err_thread_local);
703 if (state == (ERR_STATE*)-1)
707 if (!CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)-1))
710 if ((state = OPENSSL_zalloc(sizeof(*state))) == NULL) {
711 CRYPTO_THREAD_set_local(&err_thread_local, NULL);
715 if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE)
716 || !CRYPTO_THREAD_set_local(&err_thread_local, state)) {
717 ERR_STATE_free(state);
718 CRYPTO_THREAD_set_local(&err_thread_local, NULL);
722 /* Ignore failures from these */
723 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
730 * err_shelve_state returns the current thread local error state
731 * and freezes the error module until err_unshelve_state is called.
733 int err_shelve_state(void **state)
735 if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL))
738 if (!RUN_ONCE(&err_init, err_do_init))
741 *state = CRYPTO_THREAD_get_local(&err_thread_local);
742 if (!CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)-1))
749 * err_unshelve_state restores the error state that was returned
750 * by err_shelve_state previously.
752 void err_unshelve_state(void* state)
754 if (state != (void*)-1)
755 CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)state);
758 int ERR_get_next_error_library(void)
762 if (!RUN_ONCE(&err_string_init, do_err_strings_init))
765 CRYPTO_THREAD_write_lock(err_string_lock);
766 ret = int_err_library_number++;
767 CRYPTO_THREAD_unlock(err_string_lock);
771 void ERR_set_error_data(char *data, int flags)
776 es = ERR_get_state();
782 err_clear_data(es, i);
783 es->err_data[i] = data;
784 es->err_data_flags[i] = flags;
787 void ERR_add_error_data(int num, ...)
791 ERR_add_error_vdata(num, args);
795 void ERR_add_error_vdata(int num, va_list args)
801 if ((str = OPENSSL_malloc(s + 1)) == NULL) {
802 /* ERRerr(ERR_F_ERR_ADD_ERROR_VDATA, ERR_R_MALLOC_FAILURE); */
808 for (i = 0; i < num; i++) {
809 a = va_arg(args, char *);
815 p = OPENSSL_realloc(str, s + 1);
822 OPENSSL_strlcat(str, a, (size_t)s + 1);
824 ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
827 int ERR_set_mark(void)
831 es = ERR_get_state();
835 if (es->bottom == es->top)
837 es->err_flags[es->top] |= ERR_FLAG_MARK;
841 int ERR_pop_to_mark(void)
845 es = ERR_get_state();
849 while (es->bottom != es->top
850 && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) {
851 err_clear(es, es->top);
852 es->top = es->top > 0 ? es->top - 1 : ERR_NUM_ERRORS - 1;
855 if (es->bottom == es->top)
857 es->err_flags[es->top] &= ~ERR_FLAG_MARK;
861 int ERR_clear_last_mark(void)
866 es = ERR_get_state();
871 while (es->bottom != top
872 && (es->err_flags[top] & ERR_FLAG_MARK) == 0) {
873 top = top > 0 ? top - 1 : ERR_NUM_ERRORS - 1;
876 if (es->bottom == top)
878 es->err_flags[top] &= ~ERR_FLAG_MARK;