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Fix panic at 'SQLite API not initialized or SQLite feature omitted'

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`to_sqlite_error` needs `sqlite3_malloc`

```
sqlite> .log on
sqlite> .load target/debug/examples/libloadable_extension.so
Error: error during initialization: SQLite version mismatch: 3014000 < 3042000
```
This commit is contained in:
gwenn 2023-07-14 15:56:43 +02:00
parent c8858bbb68
commit f9d69410ef
5 changed files with 13 additions and 18 deletions
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4
examples/loadable_extension.rs
View File

@ -25,7 +25,9 @@ pub extern "C" fn sqlite3_extension_init(
pz_err_msg: *mut *mut c_char,
p_api: *mut ffi::sqlite3_api_routines,
) -> c_int {
if let Err(err) = extension_init(db, p_api) {
if p_api.is_null() {
return ffi::SQLITE_ERROR;
} else if let Err(err) = extension_init(db, p_api) {
return unsafe { to_sqlite_error(&err, pz_err_msg) };
}
ffi::SQLITE_OK

5
libsqlite3-sys/bindgen-bindings/bindgen_3.14.0_ext.rs
View File

@ -6267,9 +6267,7 @@ pub unsafe fn sqlite3_expanded_sql(
pub unsafe fn rusqlite_extension_init2(
p_api: *mut sqlite3_api_routines,
) -> ::std::result::Result<(), crate::InitError> {
if p_api.is_null() {
return Err(crate::InitError::NullApiPointer);
}
__SQLITE3_MALLOC.store((*p_api).malloc, ::atomic::Ordering::Release);
if let Some(fun) = (*p_api).libversion_number {
let version = fun();
if SQLITE_VERSION_NUMBER > version {
@ -6371,7 +6369,6 @@ pub unsafe fn rusqlite_extension_init2(
__SQLITE3_LIBVERSION.store((*p_api).libversion, ::atomic::Ordering::Release);
__SQLITE3_LIBVERSION_NUMBER
.store((*p_api).libversion_number, ::atomic::Ordering::Release);
__SQLITE3_MALLOC.store((*p_api).malloc, ::atomic::Ordering::Release);
__SQLITE3_OPEN.store((*p_api).open, ::atomic::Ordering::Release);
__SQLITE3_OPEN16.store((*p_api).open16, ::atomic::Ordering::Release);
__SQLITE3_PREPARE.store((*p_api).prepare, ::atomic::Ordering::Release);

12
libsqlite3-sys/build.rs
View File

@ -702,6 +702,7 @@ mod loadable_extension {
let sqlite3_api_routines_ident = sqlite3_api_routines.ident;
let p_api = quote::format_ident!("p_api");
let mut stores = Vec::new();
let mut malloc = Vec::new();
// (2) `#define sqlite3_xyz sqlite3_api->abc` => `pub unsafe fn
// sqlite3_xyz(args) -> ty {...}` for each `abc` field:
for field in sqlite3_api_routines.fields {
@ -764,7 +765,12 @@ mod loadable_extension {
&syn::parse2(tokens).expect("could not parse quote output"),
));
output.push('\n');
stores.push(quote::quote! {
if name == "malloc" {
&mut malloc
} else {
&mut stores
}
.push(quote::quote! {
#ptr_name.store(
(*#p_api).#ident,
::atomic::Ordering::Release,
@ -775,9 +781,7 @@ mod loadable_extension {
let tokens = quote::quote! {
/// Like SQLITE_EXTENSION_INIT2 macro
pub unsafe fn rusqlite_extension_init2(#p_api: *mut #sqlite3_api_routines_ident) -> ::std::result::Result<(),crate::InitError> {
if #p_api.is_null() {
return Err(crate::InitError::NullApiPointer);
}
#(#malloc)* // sqlite3_malloc needed by to_sqlite_error
if let Some(fun) = (*#p_api).libversion_number {
let version = fun();
if SQLITE_VERSION_NUMBER > version {

5
libsqlite3-sys/sqlite3/bindgen_bundled_version_ext.rs vendored
View File

@ -7463,9 +7463,7 @@ pub unsafe fn sqlite3_is_interrupted(arg1: *mut sqlite3) -> ::std::os::raw::c_in
pub unsafe fn rusqlite_extension_init2(
p_api: *mut sqlite3_api_routines,
) -> ::std::result::Result<(), crate::InitError> {
if p_api.is_null() {
return Err(crate::InitError::NullApiPointer);
}
__SQLITE3_MALLOC.store((*p_api).malloc, ::atomic::Ordering::Release);
if let Some(fun) = (*p_api).libversion_number {
let version = fun();
if SQLITE_VERSION_NUMBER > version {
@ -7567,7 +7565,6 @@ pub unsafe fn rusqlite_extension_init2(
__SQLITE3_LIBVERSION.store((*p_api).libversion, ::atomic::Ordering::Release);
__SQLITE3_LIBVERSION_NUMBER
.store((*p_api).libversion_number, ::atomic::Ordering::Release);
__SQLITE3_MALLOC.store((*p_api).malloc, ::atomic::Ordering::Release);
__SQLITE3_OPEN.store((*p_api).open, ::atomic::Ordering::Release);
__SQLITE3_OPEN16.store((*p_api).open16, ::atomic::Ordering::Release);
__SQLITE3_PREPARE.store((*p_api).prepare, ::atomic::Ordering::Release);

5
libsqlite3-sys/src/error.rs
View File

@ -275,8 +275,6 @@ pub fn code_to_str(code: c_int) -> &'static str {
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
#[non_exhaustive]
pub enum InitError {
/// Invalid sqlite3_api_routines pointer
NullApiPointer,
/// Version mismatch between the extension and the SQLite3 library
VersionMismatch { compile_time: i32, runtime: i32 },
/// Invalid function pointer in one of sqlite3_api_routines fields
@ -286,9 +284,6 @@ pub enum InitError {
impl ::std::fmt::Display for InitError {
fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
match *self {
InitError::NullApiPointer => {
write!(f, "Invalid sqlite3_api_routines pointer")
}
InitError::VersionMismatch {
compile_time,
runtime,