Remove "lockit" from internal error-hash function

Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1389)

apps/errstr.c

@@ -17,16 +17,13 @@
 #include <openssl/ssl.h>
 
 typedef enum OPTION_choice {
-    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
-    OPT_STATS
+    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP
 } OPTION_CHOICE;
 
 OPTIONS errstr_options[] = {
     {OPT_HELP_STR, 1, '-', "Usage: %s [options] errnum...\n"},
     {OPT_HELP_STR, 1, '-', "  errnum  Error number\n"},
     {"help", OPT_HELP, '-', "Display this summary"},
-    {"stats", OPT_STATS, '-',
-     "Print internal hashtable statistics (long!)"},
     {NULL}
 };
 
@@ -48,14 +45,6 @@ int errstr_main(int argc, char **argv)
             opt_help(errstr_options);
             ret = 0;
             goto end;
-        case OPT_STATS:
-            lh_ERR_STRING_DATA_node_stats_bio(ERR_get_string_table(),
-                                              bio_out);
-            lh_ERR_STRING_DATA_stats_bio(ERR_get_string_table(), bio_out);
-            lh_ERR_STRING_DATA_node_usage_stats_bio(ERR_get_string_table(),
-                                                    bio_out);
-            ret = 0;
-            goto end;
         }
     }
 

crypto/err/err.c

@@ -126,7 +126,7 @@ static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT;
 static CRYPTO_RWLOCK *err_string_lock;
 
 /* Predeclarations of the "err_defaults" functions */
-static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit);
+static LHASH_OF(ERR_STRING_DATA) *get_hash(int create);
 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *);
 
 /*
@@ -155,22 +155,12 @@ static int err_string_data_cmp(const ERR_STRING_DATA *a,
     return (int)(a->error - b->error);
 }
 
-static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit)
+static LHASH_OF(ERR_STRING_DATA) *get_hash(int create)
 {
-    LHASH_OF(ERR_STRING_DATA) *ret = NULL;
-
-    if (lockit)
-        CRYPTO_THREAD_write_lock(err_string_lock);
-    if (!int_error_hash && create) {
+    if (int_error_hash == NULL && create)
         int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash,
                                                 err_string_data_cmp);
-    }
-    if (int_error_hash != NULL)
-        ret = int_error_hash;
-    if (lockit)
-        CRYPTO_THREAD_unlock(err_string_lock);
-
-    return ret;
+    return int_error_hash;
 }
 
 static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
@@ -179,7 +169,7 @@ static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d)
     LHASH_OF(ERR_STRING_DATA) *hash;
 
     CRYPTO_THREAD_read_lock(err_string_lock);
-    hash = get_hash(0, 0);
+    hash = get_hash(0);
     if (hash)
         p = lh_ERR_STRING_DATA_retrieve(hash, d);
     CRYPTO_THREAD_unlock(err_string_lock);
@@ -303,7 +293,7 @@ static void err_load_strings(int lib, ERR_STRING_DATA *str)
     LHASH_OF(ERR_STRING_DATA) *hash;
 
     CRYPTO_THREAD_write_lock(err_string_lock);
-    hash = get_hash(1, 0);
+    hash = get_hash(1);
     if (hash) {
         for (; str->error; str++) {
             if (lib)
@@ -330,7 +320,7 @@ int ERR_unload_strings(int lib, ERR_STRING_DATA *str)
         return 0;
 
     CRYPTO_THREAD_write_lock(err_string_lock);
-    hash = get_hash(0, 0);
+    hash = get_hash(0);
     if (hash) {
         for (; str->error; str++) {
             if (lib)
@@ -582,11 +572,6 @@ char *ERR_error_string(unsigned long e, char *ret)
     return ret;
 }
 
-LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void)
-{
-    return get_hash(0, 1);
-}
-
 const char *ERR_lib_error_string(unsigned long e)
 {
     ERR_STRING_DATA d, *p;

include/openssl/err.h

@@ -245,8 +245,6 @@ DEPRECATEDIN_1_1_0(void ERR_remove_thread_state(void *))
 DEPRECATEDIN_1_0_0(void ERR_remove_state(unsigned long pid))
 ERR_STATE *ERR_get_state(void);
 
-LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void);
-
 int ERR_get_next_error_library(void);
 
 int ERR_set_mark(void);

util/libcrypto.num

@@ -1800,7 +1800,6 @@ EVP_PKEY_meth_get_verify_recover        1785	1_1_0	EXIST::FUNCTION:
 NAME_CONSTRAINTS_check                  1786	1_1_0	EXIST::FUNCTION:
 X509_CERT_AUX_it                        1787	1_1_0	EXIST:!EXPORT_VAR_AS_FUNCTION:VARIABLE:
 X509_CERT_AUX_it                        1787	1_1_0	EXIST:EXPORT_VAR_AS_FUNCTION:FUNCTION:
-ERR_get_string_table                    1788	1_1_0	EXIST::FUNCTION:
 X509_get_X509_PUBKEY                    1789	1_1_0	EXIST::FUNCTION:
 TXT_DB_create_index                     1790	1_1_0	EXIST::FUNCTION:
 RAND_set_rand_engine                    1791	1_1_0	EXIST::FUNCTION:ENGINE