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sqlcipher
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add function to return current registered provider

This commit is contained in:
Stephen Lombardo 2013-06-21 11:11:02 -04:00
parent 51079a8775
commit c9ec48ded8
2 changed files with 13 additions and 1 deletions
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12
src/crypto_impl.c
View File

@ -81,13 +81,23 @@ struct codec_ctx {
};
int sqlcipher_register_provider(sqlcipher_provider *p) {
if(default_provider != NULL) {
if(default_provider != NULL && default_provider != p) {
/* only free the current registerd provider if it has been initialized
and it isn't a pointer to the same provider passed to the function
(i.e. protect against a caller calling register twice for the same provider) */
sqlcipher_free(default_provider, sizeof(sqlcipher_provider));
}
default_provider = p;
return SQLITE_OK;
}
/* return a pointer to the currently registered provider. This will
allow an application to fetch the current registered provider and
make minor changes to it */
sqlcipher_provider* sqlcipher_get_provider() {
return default_provider;
}
void sqlcipher_activate() {
sqlcipher_provider *p;
sqlite3_mutex_enter(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER));

2
src/sqlcipher.h
View File

@ -65,7 +65,9 @@ int sqlcipher_ismemset(const void *v, unsigned char value, int len);
int sqlcipher_memcmp(const void *v0, const void *v1, int len);
void sqlcipher_free(void *, int);
/* provider interfaces */
int sqlcipher_register_provider(sqlcipher_provider *p);
sqlcipher_provider* sqlcipher_get_provider();
#endif
#endif