diff options
Diffstat (limited to 'src/engine.c')
| -rw-r--r-- | src/engine.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/engine.c b/src/engine.c index a7c016f0..f428034d 100644 --- a/src/engine.c +++ b/src/engine.c @@ -63,6 +63,10 @@ static struct engine_ops *engine_ops[] = static gpgme_engine_info_t engine_info; DEFINE_STATIC_LOCK (engine_info_lock); +/* If non-NULL, the minimal version required for all engines. */ +static char *engine_minimal_version; + + /* Get the file name of the engine for PROTOCOL. */ static const char * @@ -178,6 +182,26 @@ _gpgme_engine_info_release (gpgme_engine_info_t info) } +/* This is an internal function to set a mimimal required version. + * This function must only be called by gpgme_set_global_flag. + * Returns 0 on success. */ +int +_gpgme_set_engine_minimal_version (const char *value) +{ + free (engine_minimal_version); + if (value) + { + engine_minimal_version = strdup (value); + return !engine_minimal_version; + } + else + { + engine_minimal_version = NULL; + return 0; + } +} + + /* Get the information about the configured and installed engines. A pointer to the first engine in the statically allocated linked list is returned in *INFO. If an error occurs, it is returned. The @@ -229,6 +253,17 @@ gpgme_get_engine_info (gpgme_engine_info_t *info) if (!*lastp && !err) err = gpg_error_from_syserror (); + /* Check against the optional minimal engine version. */ + if (!err && version && engine_minimal_version + && !_gpgme_compare_versions (version, engine_minimal_version)) + { +#if GPG_ERROR_VERSION_NUMBER < 0x011900 /* 1.25 */ + err = gpg_error (GPG_ERR_NO_ENGINE); +#else + err = gpg_error (GPG_ERR_ENGINE_TOO_OLD); +#endif + } + /* Now set the dummy version for pseudo engines. */ if (!err && !version) { |