2 * Copyright 1995-2016 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/lhash.h>
17 #include <openssl/err.h>
18 #include <openssl/crypto.h>
19 #include <openssl/buffer.h>
20 #include <openssl/bio.h>
21 #include <openssl/opensslconf.h>
22 #include <internal/thread_once.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"},
67 static ERR_STRING_DATA ERR_str_functs
[] = {
68 {ERR_PACK(0, SYS_F_FOPEN
, 0), "fopen"},
69 {ERR_PACK(0, SYS_F_CONNECT
, 0), "connect"},
70 {ERR_PACK(0, SYS_F_GETSERVBYNAME
, 0), "getservbyname"},
71 {ERR_PACK(0, SYS_F_SOCKET
, 0), "socket"},
72 {ERR_PACK(0, SYS_F_IOCTLSOCKET
, 0), "ioctlsocket"},
73 {ERR_PACK(0, SYS_F_BIND
, 0), "bind"},
74 {ERR_PACK(0, SYS_F_LISTEN
, 0), "listen"},
75 {ERR_PACK(0, SYS_F_ACCEPT
, 0), "accept"},
76 # ifdef OPENSSL_SYS_WINDOWS
77 {ERR_PACK(0, SYS_F_WSASTARTUP
, 0), "WSAstartup"},
79 {ERR_PACK(0, SYS_F_OPENDIR
, 0), "opendir"},
80 {ERR_PACK(0, SYS_F_FREAD
, 0), "fread"},
81 {ERR_PACK(0, SYS_F_GETADDRINFO
, 0), "getaddrinfo"},
82 {ERR_PACK(0, SYS_F_GETNAMEINFO
, 0), "getnameinfo"},
83 {ERR_PACK(0, SYS_F_SETSOCKOPT
, 0), "setsockopt"},
84 {ERR_PACK(0, SYS_F_GETSOCKOPT
, 0), "getsockopt"},
85 {ERR_PACK(0, SYS_F_GETSOCKNAME
, 0), "getsockname"},
86 {ERR_PACK(0, SYS_F_GETHOSTBYNAME
, 0), "gethostbyname"},
87 {ERR_PACK(0, SYS_F_FFLUSH
, 0), "fflush"},
88 {ERR_PACK(0, SYS_F_OPEN
, 0), "open"},
89 {ERR_PACK(0, SYS_F_CLOSE
, 0), "close"},
90 {ERR_PACK(0, SYS_F_IOCTL
, 0), "ioctl"},
91 {ERR_PACK(0, SYS_F_STAT
, 0), "stat"},
95 static ERR_STRING_DATA ERR_str_reasons
[] = {
96 {ERR_R_SYS_LIB
, "system lib"},
97 {ERR_R_BN_LIB
, "BN lib"},
98 {ERR_R_RSA_LIB
, "RSA lib"},
99 {ERR_R_DH_LIB
, "DH lib"},
100 {ERR_R_EVP_LIB
, "EVP lib"},
101 {ERR_R_BUF_LIB
, "BUF lib"},
102 {ERR_R_OBJ_LIB
, "OBJ lib"},
103 {ERR_R_PEM_LIB
, "PEM lib"},
104 {ERR_R_DSA_LIB
, "DSA lib"},
105 {ERR_R_X509_LIB
, "X509 lib"},
106 {ERR_R_ASN1_LIB
, "ASN1 lib"},
107 {ERR_R_EC_LIB
, "EC lib"},
108 {ERR_R_BIO_LIB
, "BIO lib"},
109 {ERR_R_PKCS7_LIB
, "PKCS7 lib"},
110 {ERR_R_X509V3_LIB
, "X509V3 lib"},
111 {ERR_R_ENGINE_LIB
, "ENGINE lib"},
112 {ERR_R_UI_LIB
, "UI lib"},
113 {ERR_R_OSSL_STORE_LIB
, "STORE lib"},
114 {ERR_R_ECDSA_LIB
, "ECDSA lib"},
116 {ERR_R_NESTED_ASN1_ERROR
, "nested asn1 error"},
117 {ERR_R_MISSING_ASN1_EOS
, "missing asn1 eos"},
119 {ERR_R_FATAL
, "fatal"},
120 {ERR_R_MALLOC_FAILURE
, "malloc failure"},
121 {ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
,
122 "called a function you should not call"},
123 {ERR_R_PASSED_NULL_PARAMETER
, "passed a null parameter"},
124 {ERR_R_INTERNAL_ERROR
, "internal error"},
125 {ERR_R_DISABLED
, "called a function that was disabled at compile-time"},
126 {ERR_R_INIT_FAIL
, "init fail"},
127 {ERR_R_OPERATION_FAIL
, "operation fail"},
133 static CRYPTO_ONCE err_init
= CRYPTO_ONCE_STATIC_INIT
;
134 static int set_err_thread_local
;
135 static CRYPTO_THREAD_LOCAL err_thread_local
;
137 static CRYPTO_ONCE err_string_init
= CRYPTO_ONCE_STATIC_INIT
;
138 static CRYPTO_RWLOCK
*err_string_lock
;
140 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*);
146 static LHASH_OF(ERR_STRING_DATA
) *int_error_hash
= NULL
;
147 static int int_err_library_number
= ERR_LIB_USER
;
149 static unsigned long get_error_values(int inc
, int top
, const char **file
,
150 int *line
, const char **data
,
153 static unsigned long err_string_data_hash(const ERR_STRING_DATA
*a
)
155 unsigned long ret
, l
;
158 ret
= l
^ ERR_GET_LIB(l
) ^ ERR_GET_FUNC(l
);
159 return (ret
^ ret
% 19 * 13);
162 static int err_string_data_cmp(const ERR_STRING_DATA
*a
,
163 const ERR_STRING_DATA
*b
)
165 return (int)(a
->error
- b
->error
);
168 static ERR_STRING_DATA
*int_err_get_item(const ERR_STRING_DATA
*d
)
170 ERR_STRING_DATA
*p
= NULL
;
172 CRYPTO_THREAD_read_lock(err_string_lock
);
173 p
= lh_ERR_STRING_DATA_retrieve(int_error_hash
, d
);
174 CRYPTO_THREAD_unlock(err_string_lock
);
179 #ifndef OPENSSL_NO_ERR
180 # define NUM_SYS_STR_REASONS 127
181 # define LEN_SYS_STR_REASON 32
183 static ERR_STRING_DATA SYS_str_reasons
[NUM_SYS_STR_REASONS
+ 1];
185 * SYS_str_reasons is filled with copies of strerror() results at
186 * initialization. 'errno' values up to 127 should cover all usual errors,
187 * others will be displayed numerically by ERR_error_string. It is crucial
188 * that we have something for each reason code that occurs in
189 * ERR_str_reasons, or bogus reason strings will be returned for SYSerr(),
190 * which always gets an errno value and never one of those 'standard' reason
194 static void build_SYS_str_reasons(void)
196 /* OPENSSL_malloc cannot be used here, use static storage instead */
197 static char strerror_tab
[NUM_SYS_STR_REASONS
][LEN_SYS_STR_REASON
];
201 CRYPTO_THREAD_write_lock(err_string_lock
);
203 CRYPTO_THREAD_unlock(err_string_lock
);
207 for (i
= 1; i
<= NUM_SYS_STR_REASONS
; i
++) {
208 ERR_STRING_DATA
*str
= &SYS_str_reasons
[i
- 1];
210 str
->error
= ERR_PACK(ERR_LIB_SYS
, 0, i
);
211 if (str
->string
== NULL
) {
212 char (*dest
)[LEN_SYS_STR_REASON
] = &(strerror_tab
[i
- 1]);
213 if (openssl_strerror_r(i
, *dest
, sizeof(*dest
)))
216 if (str
->string
== NULL
)
217 str
->string
= "unknown";
221 * Now we still have SYS_str_reasons[NUM_SYS_STR_REASONS] = {0, NULL}, as
222 * required by ERR_load_strings.
227 CRYPTO_THREAD_unlock(err_string_lock
);
228 err_load_strings(SYS_str_reasons
);
232 #define err_clear_data(p,i) \
234 if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) \
236 OPENSSL_free((p)->err_data[i]); \
237 (p)->err_data[i]=NULL; \
239 (p)->err_data_flags[i]=0; \
242 #define err_clear(p,i) \
244 (p)->err_flags[i]=0; \
245 (p)->err_buffer[i]=0; \
246 err_clear_data(p,i); \
247 (p)->err_file[i]=NULL; \
248 (p)->err_line[i]= -1; \
251 static void ERR_STATE_free(ERR_STATE
*s
)
258 for (i
= 0; i
< ERR_NUM_ERRORS
; i
++) {
259 err_clear_data(s
, i
);
264 DEFINE_RUN_ONCE_STATIC(do_err_strings_init
)
266 OPENSSL_init_crypto(0, NULL
);
267 err_string_lock
= CRYPTO_THREAD_lock_new();
268 int_error_hash
= lh_ERR_STRING_DATA_new(err_string_data_hash
,
269 err_string_data_cmp
);
270 return err_string_lock
!= NULL
&& int_error_hash
!= NULL
;
273 void err_cleanup(void)
275 if (set_err_thread_local
!= 0)
276 CRYPTO_THREAD_cleanup_local(&err_thread_local
);
277 CRYPTO_THREAD_lock_free(err_string_lock
);
278 err_string_lock
= NULL
;
279 lh_ERR_STRING_DATA_free(int_error_hash
);
280 int_error_hash
= NULL
;
284 * Legacy; pack in the library.
286 static void err_patch(int lib
, ERR_STRING_DATA
*str
)
288 unsigned long plib
= ERR_PACK(lib
, 0, 0);
290 for (; str
->error
!= 0; str
++)
295 * Hash in |str| error strings. Assumes the URN_ONCE was done.
297 static int err_load_strings(const ERR_STRING_DATA
*str
)
299 CRYPTO_THREAD_write_lock(err_string_lock
);
300 for (; str
->error
; str
++)
301 (void)lh_ERR_STRING_DATA_insert(int_error_hash
,
302 (ERR_STRING_DATA
*)str
);
303 CRYPTO_THREAD_unlock(err_string_lock
);
307 int ERR_load_ERR_strings(void)
309 #ifndef OPENSSL_NO_ERR
310 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
))
313 err_load_strings(ERR_str_libraries
);
314 err_load_strings(ERR_str_reasons
);
315 err_patch(ERR_LIB_SYS
, ERR_str_functs
);
316 err_load_strings(ERR_str_functs
);
317 build_SYS_str_reasons();
322 int ERR_load_strings(int lib
, ERR_STRING_DATA
*str
)
324 if (ERR_load_ERR_strings() == 0)
328 err_load_strings(str
);
332 int ERR_load_strings_const(const ERR_STRING_DATA
*str
)
334 if (ERR_load_ERR_strings() == 0)
336 err_load_strings(str
);
340 int ERR_unload_strings(int lib
, ERR_STRING_DATA
*str
)
342 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
))
345 CRYPTO_THREAD_write_lock(err_string_lock
);
347 * We don't need to ERR_PACK the lib, since that was done (to
348 * the table) when it was loaded.
350 for (; str
->error
; str
++)
351 (void)lh_ERR_STRING_DATA_delete(int_error_hash
, str
);
352 CRYPTO_THREAD_unlock(err_string_lock
);
357 void err_free_strings_int(void)
359 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
))
363 /********************************************************/
365 void ERR_put_error(int lib
, int func
, int reason
, const char *file
, int line
)
371 * In the BS2000-OSD POSIX subsystem, the compiler generates path names
372 * in the form "*POSIX(/etc/passwd)". This dirty hack strips them to
373 * something sensible. @@@ We shouldn't modify a const string, though.
375 if (strncmp(file
, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {
378 /* Skip the "*POSIX(" prefix */
379 file
+= sizeof("*POSIX(") - 1;
380 end
= &file
[strlen(file
) - 1];
383 /* Optional: use the basename of the path only. */
384 if ((end
= strrchr(file
, '/')) != NULL
)
388 es
= ERR_get_state();
392 es
->top
= (es
->top
+ 1) % ERR_NUM_ERRORS
;
393 if (es
->top
== es
->bottom
)
394 es
->bottom
= (es
->bottom
+ 1) % ERR_NUM_ERRORS
;
395 es
->err_flags
[es
->top
] = 0;
396 es
->err_buffer
[es
->top
] = ERR_PACK(lib
, func
, reason
);
397 es
->err_file
[es
->top
] = file
;
398 es
->err_line
[es
->top
] = line
;
399 err_clear_data(es
, es
->top
);
402 void ERR_clear_error(void)
407 es
= ERR_get_state();
411 for (i
= 0; i
< ERR_NUM_ERRORS
; i
++) {
414 es
->top
= es
->bottom
= 0;
417 unsigned long ERR_get_error(void)
419 return (get_error_values(1, 0, NULL
, NULL
, NULL
, NULL
));
422 unsigned long ERR_get_error_line(const char **file
, int *line
)
424 return (get_error_values(1, 0, file
, line
, NULL
, NULL
));
427 unsigned long ERR_get_error_line_data(const char **file
, int *line
,
428 const char **data
, int *flags
)
430 return (get_error_values(1, 0, file
, line
, data
, flags
));
433 unsigned long ERR_peek_error(void)
435 return (get_error_values(0, 0, NULL
, NULL
, NULL
, NULL
));
438 unsigned long ERR_peek_error_line(const char **file
, int *line
)
440 return (get_error_values(0, 0, file
, line
, NULL
, NULL
));
443 unsigned long ERR_peek_error_line_data(const char **file
, int *line
,
444 const char **data
, int *flags
)
446 return (get_error_values(0, 0, file
, line
, data
, flags
));
449 unsigned long ERR_peek_last_error(void)
451 return (get_error_values(0, 1, NULL
, NULL
, NULL
, NULL
));
454 unsigned long ERR_peek_last_error_line(const char **file
, int *line
)
456 return (get_error_values(0, 1, file
, line
, NULL
, NULL
));
459 unsigned long ERR_peek_last_error_line_data(const char **file
, int *line
,
460 const char **data
, int *flags
)
462 return (get_error_values(0, 1, file
, line
, data
, flags
));
465 static unsigned long get_error_values(int inc
, int top
, const char **file
,
466 int *line
, const char **data
,
473 es
= ERR_get_state();
487 return ERR_R_INTERNAL_ERROR
;
490 if (es
->bottom
== es
->top
)
493 i
= es
->top
; /* last error */
495 i
= (es
->bottom
+ 1) % ERR_NUM_ERRORS
; /* first error */
497 ret
= es
->err_buffer
[i
];
500 es
->err_buffer
[i
] = 0;
503 if ((file
!= NULL
) && (line
!= NULL
)) {
504 if (es
->err_file
[i
] == NULL
) {
509 *file
= es
->err_file
[i
];
511 *line
= es
->err_line
[i
];
517 err_clear_data(es
, i
);
520 if (es
->err_data
[i
] == NULL
) {
525 *data
= es
->err_data
[i
];
527 *flags
= es
->err_data_flags
[i
];
533 void ERR_error_string_n(unsigned long e
, char *buf
, size_t len
)
535 char lsbuf
[64], fsbuf
[64], rsbuf
[64];
536 const char *ls
, *fs
, *rs
;
537 unsigned long l
, f
, r
;
544 r
= ERR_GET_REASON(e
);
546 ls
= ERR_lib_error_string(e
);
547 fs
= ERR_func_error_string(e
);
548 rs
= ERR_reason_error_string(e
);
551 BIO_snprintf(lsbuf
, sizeof(lsbuf
), "lib(%lu)", l
);
553 BIO_snprintf(fsbuf
, sizeof(fsbuf
), "func(%lu)", f
);
555 BIO_snprintf(rsbuf
, sizeof(rsbuf
), "reason(%lu)", r
);
557 BIO_snprintf(buf
, len
, "error:%08lX:%s:%s:%s", e
, ls
? ls
: lsbuf
,
558 fs
? fs
: fsbuf
, rs
? rs
: rsbuf
);
559 if (strlen(buf
) == len
- 1) {
561 * output may be truncated; make sure we always have 5
562 * colon-separated fields, i.e. 4 colons ...
565 if (len
> NUM_COLONS
) { /* ... if possible */
569 for (i
= 0; i
< NUM_COLONS
; i
++) {
570 char *colon
= strchr(s
, ':');
571 if (colon
== NULL
|| colon
> &buf
[len
- 1] - NUM_COLONS
+ i
) {
573 * set colon no. i at last possible position (buf[len-1]
574 * is the terminating 0)
576 colon
= &buf
[len
- 1] - NUM_COLONS
+ i
;
586 * ERR_error_string_n should be used instead for ret != NULL as
587 * ERR_error_string cannot know how large the buffer is
589 char *ERR_error_string(unsigned long e
, char *ret
)
591 static char buf
[256];
595 ERR_error_string_n(e
, ret
, 256);
600 const char *ERR_lib_error_string(unsigned long e
)
602 ERR_STRING_DATA d
, *p
;
605 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
)) {
610 d
.error
= ERR_PACK(l
, 0, 0);
611 p
= int_err_get_item(&d
);
612 return ((p
== NULL
) ? NULL
: p
->string
);
615 const char *ERR_func_error_string(unsigned long e
)
617 ERR_STRING_DATA d
, *p
;
620 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
)) {
626 d
.error
= ERR_PACK(l
, f
, 0);
627 p
= int_err_get_item(&d
);
628 return ((p
== NULL
) ? NULL
: p
->string
);
631 const char *ERR_reason_error_string(unsigned long e
)
633 ERR_STRING_DATA d
, *p
= NULL
;
636 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
)) {
641 r
= ERR_GET_REASON(e
);
642 d
.error
= ERR_PACK(l
, 0, r
);
643 p
= int_err_get_item(&d
);
645 d
.error
= ERR_PACK(0, 0, r
);
646 p
= int_err_get_item(&d
);
648 return ((p
== NULL
) ? NULL
: p
->string
);
651 void err_delete_thread_state(void)
653 ERR_STATE
*state
= CRYPTO_THREAD_get_local(&err_thread_local
);
657 CRYPTO_THREAD_set_local(&err_thread_local
, NULL
);
658 ERR_STATE_free(state
);
661 #if OPENSSL_API_COMPAT < 0x10100000L
662 void ERR_remove_thread_state(void *dummy
)
667 #if OPENSSL_API_COMPAT < 0x10000000L
668 void ERR_remove_state(unsigned long pid
)
673 DEFINE_RUN_ONCE_STATIC(err_do_init
)
675 set_err_thread_local
= 1;
676 return CRYPTO_THREAD_init_local(&err_thread_local
, NULL
);
679 ERR_STATE
*ERR_get_state(void)
681 ERR_STATE
*state
= NULL
;
683 if (!RUN_ONCE(&err_init
, err_do_init
))
686 state
= CRYPTO_THREAD_get_local(&err_thread_local
);
689 state
= OPENSSL_zalloc(sizeof(*state
));
693 if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE
)
694 || !CRYPTO_THREAD_set_local(&err_thread_local
, state
)) {
695 ERR_STATE_free(state
);
699 /* Ignore failures from these */
700 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS
, NULL
);
706 int ERR_get_next_error_library(void)
710 if (!RUN_ONCE(&err_string_init
, do_err_strings_init
)) {
714 CRYPTO_THREAD_write_lock(err_string_lock
);
715 ret
= int_err_library_number
++;
716 CRYPTO_THREAD_unlock(err_string_lock
);
720 void ERR_set_error_data(char *data
, int flags
)
725 es
= ERR_get_state();
731 i
= ERR_NUM_ERRORS
- 1;
733 err_clear_data(es
, i
);
734 es
->err_data
[i
] = data
;
735 es
->err_data_flags
[i
] = flags
;
738 void ERR_add_error_data(int num
, ...)
742 ERR_add_error_vdata(num
, args
);
746 void ERR_add_error_vdata(int num
, va_list args
)
752 str
= OPENSSL_malloc(s
+ 1);
758 for (i
= 0; i
< num
; i
++) {
759 a
= va_arg(args
, char *);
760 /* ignore NULLs, thanks to Bob Beck <beck@obtuse.com> */
765 p
= OPENSSL_realloc(str
, s
+ 1);
772 OPENSSL_strlcat(str
, a
, (size_t)s
+ 1);
775 ERR_set_error_data(str
, ERR_TXT_MALLOCED
| ERR_TXT_STRING
);
778 int ERR_set_mark(void)
782 es
= ERR_get_state();
786 if (es
->bottom
== es
->top
)
788 es
->err_flags
[es
->top
] |= ERR_FLAG_MARK
;
792 int ERR_pop_to_mark(void)
796 es
= ERR_get_state();
800 while (es
->bottom
!= es
->top
801 && (es
->err_flags
[es
->top
] & ERR_FLAG_MARK
) == 0) {
802 err_clear(es
, es
->top
);
805 es
->top
= ERR_NUM_ERRORS
- 1;
808 if (es
->bottom
== es
->top
)
810 es
->err_flags
[es
->top
] &= ~ERR_FLAG_MARK
;