RT4562: Fix misleading doc on OPENSSL_config

Also changed the code to use "appname" not "filename"

Reviewed-by: Matt Caswell <matt@openssl.org>

crypto/conf/conf_lib.c

@@ -340,19 +340,19 @@ OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void)
 
 
 #ifndef OPENSSL_NO_STDIO
-int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
+int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *settings,
-                                     const char *config_file)
+                                    const char *appname)
 {
-    char *new_config_file = NULL;
+    char *newappname = NULL;
 
-    if (config_file != NULL) {
+    if (appname != NULL) {
-        new_config_file = strdup(config_file);
+        newappname = strdup(appname);
-        if (new_config_file == NULL)
+        if (newappname == NULL)
             return 0;
     }
 
-    free(settings->config_name);
+    free(settings->appname);
-    settings->config_name = new_config_file;
+    settings->appname = newappname;
 
     return 1;
 }
@@ -360,6 +360,6 @@ int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
 
 void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings)
 {
-    free(settings->config_name);
+    free(settings->appname);
     free(settings);
 }

crypto/conf/conf_sap.c

@@ -24,18 +24,18 @@
 static int openssl_configured = 0;
 
 #if OPENSSL_API_COMPAT < 0x10100000L
-void OPENSSL_config(const char *config_name)
+void OPENSSL_config(const char *appname)
 {
     OPENSSL_INIT_SETTINGS settings;
 
     memset(&settings, 0, sizeof(settings));
-    if (config_name != NULL)
+    if (appname != NULL)
-        settings.config_name = strdup(config_name);
+        settings.appname = strdup(appname);
     OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, &settings);
 }
 #endif
 
-void openssl_config_int(const char *config_name)
+void openssl_config_int(const char *appname)
 {
     if (openssl_configured)
         return;
@@ -47,7 +47,7 @@ void openssl_config_int(const char *config_name)
 #endif
     ERR_clear_error();
 #ifndef OPENSSL_SYS_UEFI
-    CONF_modules_load_file(NULL, config_name,
+    CONF_modules_load_file(NULL, appname,
                                CONF_MFLAGS_DEFAULT_SECTION |
                                CONF_MFLAGS_IGNORE_MISSING_FILE);
 #endif

crypto/init.c

@@ -153,15 +153,15 @@ static void ossl_init_no_add_algs(void)
 
 static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT;
 static int config_inited = 0;
-static const char *config_filename;
+static const char *appname;
 static void ossl_init_config(void)
 {
 #ifdef OPENSSL_INIT_DEBUG
     fprintf(stderr,
             "OPENSSL_INIT: ossl_init_config: openssl_config(%s)\n",
-            config_filename==NULL?"NULL":config_filename);
+            appname == NULL ? "NULL" : appname);
 #endif
-    openssl_config_int(config_filename);
+    openssl_config_int(appname);
     config_inited = 1;
 }
 static void ossl_init_no_config(void)
@@ -512,7 +512,7 @@ int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
     if (opts & OPENSSL_INIT_LOAD_CONFIG) {
         int ret;
         CRYPTO_THREAD_write_lock(init_lock);
-        config_filename = (settings == NULL) ? NULL : settings->config_name;
+        appname = (settings == NULL) ? NULL : settings->appname;
         ret = CRYPTO_THREAD_run_once(&config, ossl_init_config);
         CRYPTO_THREAD_unlock(init_lock);
         if (!ret)

doc/crypto/OPENSSL_config.pod

@@ -8,15 +8,16 @@ OPENSSL_config, OPENSSL_no_config - simple OpenSSL configuration functions
 
  #include <openssl/conf.h>
 
- void OPENSSL_config(const char *config_name);
+ #if OPENSSL_API_COMPAT < 0x10100000L
+ void OPENSSL_config(const char *appname);
  void OPENSSL_no_config(void);
+ #endif
 
 =head1 DESCRIPTION
 
-OPENSSL_config() configures OpenSSL using the standard B<openssl.cnf>
+OPENSSL_config() configures OpenSSL using the standard B<openssl.cnf> and
-configuration file name using B<config_name>. If B<config_name> is NULL then
+reads from the application section B<appname>. If B<appname> is NULL then
-the file specified in the environment variable B<OPENSSL_CONF> will be used,
+the default section, B<openssl_conf>, will be used.
-and if that is not set then a system default location is used.
 Errors are silently ignored.
 Multiple calls have no effect.
 

doc/crypto/OPENSSL_init_crypto.pod

@@ -16,7 +16,7 @@ initialisation and deinitialisation functions
  void OPENSSL_thread_stop(void);
 
  OPENSSL_INIT_SETTINGS *OPENSSL_init_new(void);
- int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *init,
+ int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *init,
                                      const char* name);
  void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *init);
 
@@ -191,8 +191,8 @@ described in the NOTES section below.
 The B<OPENSSL_INIT_LOAD_CONFIG> flag will load a default configuration
 file.  To specify a different file, an B<OPENSSL_INIT_SETTINGS> must
 be created and used. The routines
-OPENSSL_init_new() and OPENSSL_INIT_set_config_filename() can be used to
+OPENSSL_init_new() and OPENSSL_INIT_set_config_appname() can be used to
-allocate the object and set the configuration filename, and then the
+allocate the object and set the application name, and then the
 object can be released with OPENSSL_INIT_free() when done.
 
 =head1 NOTES
@@ -220,7 +220,7 @@ call should use the RTLD_NODELETE flag (where available on the platform).
 =head1 RETURN VALUES
 
 The functions OPENSSL_init_crypto, OPENSSL_atexit() and
-OPENSSL_INIT_set_config_filename() return 1 on success or 0 on error.
+OPENSSL_INIT_set_config_appname() return 1 on success or 0 on error.
 
 =head1 SEE ALSO
 
@@ -229,7 +229,7 @@ L<OPENSSL_init_ssl(3)>
 =head1 HISTORY
 
 The OPENSSL_init_crypto(), OPENSSL_cleanup(), OPENSSL_atexit(),
-OPENSSL_thread_stop(), OPENSSL_init_new(), OPENSSL_INIT_set_config_filename()
+OPENSSL_thread_stop(), OPENSSL_init_new(), OPENSSL_INIT_set_config_appname()
 and OPENSSL_INIT_free() functions were added in OpenSSL 1.1.0.
 
 =head1 COPYRIGHT

include/internal/conf.h

@@ -18,10 +18,10 @@ extern "C" {
 
 
 struct ossl_init_settings_st {
-    char *config_name;
+    char *appname;
 };
 
-void openssl_config_int(const char *config_name);
+void openssl_config_int(const char *appname);
 void openssl_no_config_int(void);
 void conf_modules_free_int(void);
 

include/openssl/crypto.h

@@ -380,7 +380,7 @@ void OPENSSL_thread_stop(void);
 /* Low-level control of initialization */
 OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void);
 #ifndef OPENSSL_NO_STDIO
-int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
+int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *settings,
                                     const char *config_file);
 #endif
 void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings);

util/libcrypto.num

@@ -1126,7 +1126,7 @@ i2d_X509_EXTENSIONS                     1116	1_1_0	EXIST::FUNCTION:
 X509_STORE_CTX_get0_store               1117	1_1_0	EXIST::FUNCTION:
 PKCS12_pack_p7data                      1118	1_1_0	EXIST::FUNCTION:
 RSA_print_fp                            1119	1_1_0	EXIST::FUNCTION:RSA,STDIO
-OPENSSL_INIT_set_config_filename        1120	1_1_0	EXIST::FUNCTION:STDIO
+OPENSSL_INIT_set_config_appname         1120	1_1_0	EXIST::FUNCTION:STDIO
 EC_KEY_print_fp                         1121	1_1_0	EXIST::FUNCTION:EC,STDIO
 BIO_dup_chain                           1122	1_1_0	EXIST::FUNCTION:
 PKCS8_PRIV_KEY_INFO_it                  1123	1_1_0	EXIST:!EXPORT_VAR_AS_FUNCTION:VARIABLE: