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riscv-openocd-wch/jimtcl/jim-sqlite3.c

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/*
* Jim - Sqlite bindings
*
* Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation
* are those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of the Jim Tcl Project.
*/
#include <stdio.h>
#include <string.h>
#include <sqlite3.h>
#include <jim.h>
static void JimSqliteDelProc(Jim_Interp *interp, void *privData)
{
sqlite3 *db = privData;
JIM_NOTUSED(interp);
sqlite3_close(db);
}
static char *JimSqliteQuoteString(const char *str, int len, int *newLenPtr)
{
int i, newLen, c = 0;
const char *s;
char *d, *buf;
for (i = 0; i < len; i++)
if (str[i] == '\'')
c++;
newLen = len + c;
s = str;
d = buf = Jim_Alloc(newLen);
while (len--) {
if (*s == '\'')
*d++ = '\'';
*d++ = *s++;
}
*newLenPtr = newLen;
return buf;
}
static Jim_Obj *JimSqliteFormatQuery(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
int objc, Jim_Obj *const *objv)
{
const char *fmt;
int fmtLen;
Jim_Obj *resObjPtr;
fmt = Jim_GetString(fmtObjPtr, &fmtLen);
resObjPtr = Jim_NewStringObj(interp, "", 0);
while (fmtLen) {
const char *p = fmt;
char spec[2];
while (*fmt != '%' && fmtLen) {
fmt++;
fmtLen--;
}
Jim_AppendString(interp, resObjPtr, p, fmt - p);
if (fmtLen == 0)
break;
fmt++;
fmtLen--; /* skip '%' */
if (*fmt != '%') {
if (objc == 0) {
Jim_FreeNewObj(interp, resObjPtr);
Jim_SetResultString(interp, "not enough arguments for all format specifiers", -1);
return NULL;
}
else {
objc--;
}
}
switch (*fmt) {
case 's':
{
const char *str;
char *quoted;
int len, newLen;
str = Jim_GetString(objv[0], &len);
quoted = JimSqliteQuoteString(str, len, &newLen);
Jim_AppendString(interp, resObjPtr, quoted, newLen);
Jim_Free(quoted);
}
objv++;
break;
case '%':
Jim_AppendString(interp, resObjPtr, "%", 1);
break;
default:
spec[0] = *fmt;
spec[1] = '\0';
Jim_FreeNewObj(interp, resObjPtr);
Jim_SetResultFormatted(interp,
"bad field specifier \"%s\", only %%s and %%%% are valid", spec);
return NULL;
}
fmt++;
fmtLen--;
}
return resObjPtr;
}
/* Calls to [sqlite.open] create commands that are implemented by this
* C command. */
static int JimSqliteHandlerCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
sqlite3 *db = Jim_CmdPrivData(interp);
int option;
static const char * const options[] = {
"close", "query", "lastid", "changes", NULL
};
enum
{ OPT_CLOSE, OPT_QUERY, OPT_LASTID, OPT_CHANGES };
if (argc < 2) {
Jim_WrongNumArgs(interp, 1, argv, "method ?args ...?");
return JIM_ERR;
}
if (Jim_GetEnum(interp, argv[1], options, &option, "Sqlite method", JIM_ERRMSG) != JIM_OK)
return JIM_ERR;
/* CLOSE */
if (option == OPT_CLOSE) {
if (argc != 2) {
Jim_WrongNumArgs(interp, 2, argv, "");
return JIM_ERR;
}
Jim_DeleteCommand(interp, argv[0]);
return JIM_OK;
}
else if (option == OPT_QUERY) {
/* QUERY */
Jim_Obj *objPtr, *rowsListPtr;
sqlite3_stmt *stmt;
const char *query, *tail;
int columns, rows, len;
int retcode = JIM_ERR;
Jim_Obj *nullStrObj;
if (argc >= 4 && Jim_CompareStringImmediate(interp, argv[2], "-null")) {
nullStrObj = argv[3];
argv += 2;
argc -= 2;
}
else {
nullStrObj = Jim_NewEmptyStringObj(interp);
}
Jim_IncrRefCount(nullStrObj);
if (argc < 3) {
Jim_WrongNumArgs(interp, 2, argv, "?args?");
goto err;
}
objPtr = JimSqliteFormatQuery(interp, argv[2], argc - 3, argv + 3);
if (objPtr == NULL) {
return JIM_ERR;
}
query = Jim_GetString(objPtr, &len);
Jim_IncrRefCount(objPtr);
/* Compile the query into VM code */
if (sqlite3_prepare_v2(db, query, len, &stmt, &tail) != SQLITE_OK) {
Jim_DecrRefCount(interp, objPtr);
Jim_SetResultString(interp, sqlite3_errmsg(db), -1);
goto err;
}
Jim_DecrRefCount(interp, objPtr); /* query no longer needed. */
/* Build a list of rows (that are lists in turn) */
rowsListPtr = Jim_NewListObj(interp, NULL, 0);
Jim_IncrRefCount(rowsListPtr);
rows = 0;
columns = sqlite3_column_count(stmt);
while (sqlite3_step(stmt) == SQLITE_ROW) {
int i;
objPtr = Jim_NewListObj(interp, NULL, 0);
for (i = 0; i < columns; i++) {
Jim_Obj *vObj = NULL;
Jim_ListAppendElement(interp, objPtr,
Jim_NewStringObj(interp, sqlite3_column_name(stmt, i), -1));
switch (sqlite3_column_type(stmt, i)) {
case SQLITE_NULL:
vObj = nullStrObj;
break;
case SQLITE_INTEGER:
vObj = Jim_NewIntObj(interp, sqlite3_column_int64(stmt, i));
break;
case SQLITE_FLOAT:
vObj = Jim_NewDoubleObj(interp, sqlite3_column_double(stmt, i));
break;
case SQLITE_TEXT:
case SQLITE_BLOB:
vObj = Jim_NewStringObj(interp,
sqlite3_column_blob(stmt, i), sqlite3_column_bytes(stmt, i));
break;
}
Jim_ListAppendElement(interp, objPtr, vObj);
}
Jim_ListAppendElement(interp, rowsListPtr, objPtr);
rows++;
}
/* Finalize */
if (sqlite3_finalize(stmt) != SQLITE_OK) {
Jim_SetResultString(interp, sqlite3_errmsg(db), -1);
}
else {
Jim_SetResult(interp, rowsListPtr);
retcode = JIM_OK;
}
Jim_DecrRefCount(interp, rowsListPtr);
err:
Jim_DecrRefCount(interp, nullStrObj);
return retcode;
}
else if (option == OPT_LASTID) {
if (argc != 2) {
Jim_WrongNumArgs(interp, 2, argv, "");
return JIM_ERR;
}
Jim_SetResult(interp, Jim_NewIntObj(interp, sqlite3_last_insert_rowid(db)));
return JIM_OK;
}
else if (option == OPT_CHANGES) {
if (argc != 2) {
Jim_WrongNumArgs(interp, 2, argv, "");
return JIM_ERR;
}
Jim_SetResult(interp, Jim_NewIntObj(interp, sqlite3_changes(db)));
return JIM_OK;
}
return JIM_OK;
}
static int JimSqliteOpenCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
sqlite3 *db;
char buf[60];
int r;
if (argc != 2) {
Jim_WrongNumArgs(interp, 1, argv, "dbname");
return JIM_ERR;
}
r = sqlite3_open(Jim_String(argv[1]), &db);
if (r != SQLITE_OK) {
Jim_SetResultString(interp, sqlite3_errmsg(db), -1);
sqlite3_close(db);
return JIM_ERR;
}
/* Create the file command */
snprintf(buf, sizeof(buf), "sqlite.handle%ld", Jim_GetId(interp));
Jim_CreateCommand(interp, buf, JimSqliteHandlerCommand, db, JimSqliteDelProc);
Jim_SetResult(interp, Jim_MakeGlobalNamespaceName(interp, Jim_NewStringObj(interp, buf, -1)));
return JIM_OK;
}
int Jim_sqlite3Init(Jim_Interp *interp)
{
Jim_PackageProvideCheck(interp, "sqlite3");
Jim_CreateCommand(interp, "sqlite3.open", JimSqliteOpenCommand, NULL, NULL);
return JIM_OK;
}
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