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add DisallowSqliteAttach feature

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This commit is contained in:
Samuel Štancl 2025-01-02 05:46:43 +01:00
parent 613ab5bbc8
commit 9bb06afc57
10 changed files with 275 additions and 1 deletions
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22
extensions/noattach.c Normal file
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@ -0,0 +1,22 @@
#include "sqlite3ext.h"
SQLITE_EXTENSION_INIT1
static int deny_attach_authorizer(void *user_data, int action_code, const char *param1, const char *param2, const char *dbname, const char *trigger) {
return action_code == SQLITE_ATTACH // 24
? SQLITE_DENY // 1
: SQLITE_OK; // 0
}
#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_noattach_init(sqlite3 *db, char **pzErrMsg, const sqlite3_api_routines *pApi) {
SQLITE_EXTENSION_INIT2(pApi);
int rc = sqlite3_set_authorizer(db, deny_attach_authorizer, 0);
if (rc != SQLITE_OK) {
*pzErrMsg = sqlite3_mprintf("Tenancy: Failed to set authorizer");
}
return rc;
}