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impexp.c
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impexp.c
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/**
* @file impexp.c
* SQLite extension module for importing/exporting
* database information from/to SQL source text and
* export to CSV text.
*
* 2007 January 27
*
* The author disclaims copyright to this source code. In place of
* a legal notice, here is a blessing:
*
* May you do good and not evil.
* May you find forgiveness for yourself and forgive others.
* May you share freely, never taking more than you give.
*
********************************************************************
*
* <pre>
* Usage:
*
* SQLite function:
* SELECT import_sql(filename);
*
* C function:
* int impexp_import_sql(sqlite3 *db,
* char *filename);
*
* Reads SQL commands from filename and executes them
* against the current database. Returns the number
* of changes to the current database.
*
*
* SQLite function:
* SELECT export_sql(filename, [mode, tablename, ...]);
*
* C function:
* int impexp_export_sql(sqlite3 *db, char *filename, int mode, ...);
*
* Writes SQL to filename similar to SQLite's shell
* ".dump" meta command. Mode selects the output format:
* Mode 0 (default): dump schema and data using the
* optional table names following the mode argument.
* Mode 1: dump data only using the optional table
* names following the mode argument.
* Mode 2: dump schema and data using the optional
* table names following the mode argument; each
* table name is followed by a WHERE clause, i.e.
* "mode, table1, where1, table2, where2, ..."
* Mode 3: dump data only, same rules as in mode 2.
* Returns approximate number of lines written or
* -1 when an error occurred.
*
* Bit 1 of mode: when 1 dump data only
* Bits 8..9 of mode: blob quoting mode
* 0 default
* 256 ORACLE
* 512 SQL Server
* 768 MySQL
*
*
* SQLite function:
* SELECT export_csv(filename, hdr, prefix1, tablename1, schema1, ...]);
*
* C function:
* int impexp_export_csv(sqlite3 *db, char *filename, int hdr, ...);
* [char *prefix1, char *tablename1,
* char *schema1, ...]
*
* Writes entire tables as CSV to provided filename. A header
* row is written when the hdr parameter is true. The
* rows are optionally introduced with a column made up of
* the prefix (non-empty string) for the respective table.
* If "schema" is NULL, "sqlite_master" is used, otherwise
* specify e.g. "sqlite_temp_master" for temporary tables or
* "att.sqlite_master" for the attached database "att".
*
* CREATE TABLE A(a,b);
* INSERT INTO A VALUES(1,2);
* INSERT INTO A VALUES(3,'foo');
* CREATE TABLE B(c);
* INSERT INTO B VALUES('hello');
* SELECT export_csv('out.csv', 0, 'aa', 'A', NULL, 'bb', 'B', NULL);
* -- CSV output
* "aa",1,2
* "aa",3,"foo"
* "bb","hello"
* SELECT export_csv('out.csv', 1, 'aa', 'A', NULL, 'bb', 'B', NULL);
* -- CSV output
* "aa","a","b"
* "aa",1,2
* "aa",3,"foo"
* "bb","c"
* "bb","hello"
*
*
* SQLite function:
* SELECT export_xml(filename, appendflag, indent,
* [root, item, tablename, schema]+);
*
* C function:
* int impexp_export_xml(sqlite3 *db, char *filename,
* int append, int indent, char *root,
* char *item, char *tablename, char *schema);
*
* Writes a table as simple XML to provided filename. The
* rows are optionally enclosed with the "root" tag,
* the row data is enclosed in "item" tags. If "schema"
* is NULL, "sqlite_master" is used, otherwise specify
* e.g. "sqlite_temp_master" for temporary tables or
* "att.sqlite_master" for the attached database "att".
*
* <item>
* <columnname TYPE="INTEGER|REAL|NULL|TEXT|BLOB">value</columnname>
* ...
* </item>
*
* e.g.
*
* CREATE TABLE A(a,b);
* INSERT INTO A VALUES(1,2.1);
* INSERT INTO A VALUES(3,'foo');
* INSERT INTO A VALUES('',NULL);
* INSERT INTO A VALUES(X'010203','<blob>');
* SELECT export_xml('out.xml', 0, 2, 'TBL_A', 'ROW', 'A');
* -- XML output
* <TBL_A>
* <ROW>
* <a TYPE="INTEGER">1</a>
* <b TYPE="REAL">2.1</b>
* </ROW>
* <ROW>
* <a TYPE="INTEGER">3</a>
* <b TYPE="TEXT">foo</b>
* </ROW>
* <ROW>
* <a TYPE="TEXT"></a>
* <b TYPE="NULL"></b>
* </ROW>
* <ROW>
* <a TYPE="BLOB">&x03;</a>
* <b TYPE="TEXT">&lt;blob&gt;</b>
* </ROW>
* </TBL_A>
*
* Quoting of XML entities is performed only on the data,
* not on column names and root/item tags.
*
*
* SQLite function:
* SELECT export_json(filename, sql);
*
* C function:
* int impexp_export_json(sqlite3 *db, char *sql,
* impexp_putc pfunc, void *parg);
*
* Executes arbitrary SQL statements and formats
* the result in JavaScript Object Notation (JSON).
* The layout of the result is:
*
* object {results, sql}
* results[] object {columns, rows, changes, last_insert_rowid, error}
* columns[]
* object {name, decltype, type } (sqlite3_column_*)
* rows[][] (sqlite3_column_*)
* changes (sqlite3_changes)
* last_insert_rowid (sqlite3_last_insert_rowid)
* error (sqlite3_errmsg)
* sql (SQL text)
*
* For each single SQL statement in "sql" an object in the
* "results" array is produced.
*
* The function pointer for the output function to
* "impexp_export_json" has a signature compatible
* with fputc(3).
*
*
* On Win32 the filename argument may be specified as NULL in order
* to open a system file dialog for interactive filename selection.
* </pre>
*/
#ifdef STANDALONE
#include <sqlite3.h>
#define sqlite3_api_routines void
#else
#include <sqlite3ext.h>
static SQLITE_EXTENSION_INIT1
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#ifdef _WIN32
#include <windows.h>
#define strcasecmp _stricmp
#define strncasecmp _strnicmp
#else
#include <unistd.h>
#endif
#include "impexp.h"
/**
* @typedef struct json_pfs
* @struct json_pfs
* JSON output helper structure
*/
typedef struct {
impexp_putc pfunc; /**< function like fputc() */
void *parg; /**< argument to function */
} json_pfs;
static const char space_chars[] = " \f\n\r\t\v";
#define ISSPACE(c) ((c) && (strchr(space_chars, (c)) != 0))
/**
* Read one line of input into dynamically allocated buffer
* which the caller must free with sqlite3_free()
* @param fin FILE pointer
* @result dynamically allocated input line
*/
static char *
one_input_line(FILE *fin)
{
char *line, *tmp;
int nline;
int n;
int eol;
nline = 256;
line = sqlite3_malloc(nline);
if (!line) {
return 0;
}
n = 0;
eol = 0;
while (!eol) {
if (n + 256 > nline) {
nline = nline * 2 + 256;
tmp = sqlite3_realloc(line, nline);
if (!tmp) {
sqlite3_free(line);
return 0;
}
line = tmp;
}
if (!fgets(line + n, nline - n, fin)) {
if (n == 0) {
sqlite3_free(line);
return 0;
}
line[n] = 0;
eol = 1;
break;
}
while (line[n]) {
n++;
}
if ((n > 0) && (line[n-1] == '\n')) {
n--;
line[n] = 0;
eol = 1;
}
}
tmp = sqlite3_realloc(line, n + 1);
if (!tmp) {
sqlite3_free(line);
}
return tmp;
}
/**
* Test if string ends with a semicolon
* @param str string to be tested
* @param n length of string
* @result true or false
*/
static int
ends_with_semicolon(const char *str, int n)
{
while ((n > 0) && ISSPACE(str[n - 1])) {
n--;
}
return (n > 0) && (str[n - 1] == ';');
}
/**
* Test if string contains entirely whitespace or SQL comment
* @param str string to be tested
* @result true or false
*/
static int
all_whitespace(const char *str)
{
for (; str[0]; str++) {
if (ISSPACE(str[0])) {
continue;
}
if ((str[0] == '/') && (str[1] == '*')) {
str += 2;
while (str[0] && ((str[0] != '*') || (str[1] != '/'))) {
str++;
}
if (!str[0]) {
return 0;
}
str++;
continue;
}
if ((str[0] == '-') && (str[1] == '-')) {
str += 2;
while (str[0] && (str[0] != '\n')) {
str++;
}
if (!str[0]) {
return 1;
}
continue;
}
return 0;
}
return 1;
}
/**
* Process contents of FILE pointer as SQL commands
* @param db SQLite database to work on
* @param fin input FILE pointer
* @result number of errors
*/
static int
process_input(sqlite3 *db, FILE *fin)
{
char *line = 0;
char *sql = 0;
int nsql = 0;
int rc;
int errors = 0;
while (1) {
line = one_input_line(fin);
if (!line) {
break;
}
if ((!sql || !sql[0]) && all_whitespace(line)) {
continue;
}
if (!sql) {
int i;
for (i = 0; line[i] && ISSPACE(line[i]); i++) {
/* empty loop body */
}
if (line[i]) {
nsql = strlen(line);
sql = sqlite3_malloc(nsql + 1);
if (!sql) {
errors++;
break;
}
strcpy(sql, line);
}
} else {
int len = strlen(line);
char *tmp;
tmp = sqlite3_realloc(sql, nsql + len + 2);
if (!tmp) {
errors++;
break;
}
sql = tmp;
strcpy(sql + nsql, "\n");
nsql++;
strcpy(sql + nsql, line);
nsql += len;
}
sqlite3_free(line);
line = 0;
if (sql && ends_with_semicolon(sql, nsql) && sqlite3_complete(sql)) {
rc = sqlite3_exec(db, sql, 0, 0, 0);
if (rc != SQLITE_OK) {
errors++;
}
sqlite3_free(sql);
sql = 0;
nsql = 0;
}
}
if (sql) {
sqlite3_free(sql);
}
if (line) {
sqlite3_free(line);
}
return errors;
}
/**
* SQLite function to quote SQLite value depending on optional quote mode
* @param context SQLite function context
* @param argc number of arguments
* @param argv argument vector
*
* Layout of arguments:
*
* argv[0] - value to be quoted<br>
* argv[1] - value of quote mode (optional)<br>
*/
static void
quote_func(sqlite3_context *context, int argc, sqlite3_value **argv)
{
int mode = 0;
if (argc < 1) {
return;
}
if (argc > 1) {
mode = sqlite3_value_int(argv[1]);
}
switch (sqlite3_value_type(argv[0])) {
case SQLITE_NULL: {
sqlite3_result_text(context, "NULL", 4, SQLITE_STATIC);
break;
}
case SQLITE_INTEGER:
case SQLITE_FLOAT: {
sqlite3_result_value(context, argv[0]);
break;
}
case SQLITE_BLOB: {
char *text = 0;
unsigned char *blob = (unsigned char *) sqlite3_value_blob(argv[0]);
int nblob = sqlite3_value_bytes(argv[0]);
if (2 * nblob + 4 > 1000000000) {
sqlite3_result_error(context, "value too large", -1);
return;
}
text = (char *) sqlite3_malloc((2 * nblob) + 4);
if (!text) {
sqlite3_result_error(context, "out of memory", -1);
} else {
int i, k = 0;
static const char xdigits[] = "0123456789ABCDEF";
if (mode == 1) {
/* ORACLE enclosed in '' */
text[k++] = '\'';
} else if (mode == 2) {
/* SQL Server 0x prefix */
text[k++] = '0';
text[k++] = 'x';
} else if (mode == 3) {
/* MySQL x'..' */
text[k++] = 'x';
text[k++] = '\'';
} else {
/* default */
text[k++] = 'X';
text[k++] = '\'';
}
for (i = 0; i < nblob; i++) {
text[k++] = xdigits[(blob[i] >> 4 ) & 0x0F];
text[k++] = xdigits[blob[i] & 0x0F];
}
if (mode == 1) {
/* ORACLE enclosed in '' */
text[k++] = '\'';
} else if (mode == 2) {
/* SQL Server 0x prefix */
} else if (mode == 3) {
/* MySQL x'..' */
text[k++] = '\'';
} else {
/* default */
text[k++] = '\'';
}
text[k] = '\0';
sqlite3_result_text(context, text, k, SQLITE_TRANSIENT);
sqlite3_free(text);
}
break;
}
case SQLITE_TEXT: {
int i, n;
const unsigned char *arg = sqlite3_value_text(argv[0]);
char *p;
if (!arg) {
return;
}
for (i = 0, n = 0; arg[i]; i++) {
if (arg[i] == '\'') {
n++;
}
}
if (i + n + 3 > 1000000000) {
sqlite3_result_error(context, "value too large", -1);
return;
}
p = sqlite3_malloc(i + n + 3);
if (!p) {
sqlite3_result_error(context, "out of memory", -1);
return;
}
p[0] = '\'';
for (i = 0, n = 1; arg[i]; i++) {
p[n++] = arg[i];
if (arg[i] == '\'') {
p[n++] = '\'';
}
}
p[n++] = '\'';
p[n] = 0;
sqlite3_result_text(context, p, n, SQLITE_TRANSIENT);
sqlite3_free(p);
break;
}
}
}
/**
* SQLite function to quote an SQLite value in CSV format
* @param context SQLite function context
* @param argc number of arguments
* @param argv argument vector
*/
static void
quote_csv_func(sqlite3_context *context, int argc, sqlite3_value **argv)
{
if (argc < 1) {
return;
}
switch (sqlite3_value_type(argv[0])) {
case SQLITE_NULL: {
sqlite3_result_text(context, "", 0, SQLITE_STATIC);
break;
}
case SQLITE_INTEGER:
case SQLITE_FLOAT: {
sqlite3_result_value(context, argv[0]);
break;
}
case SQLITE_BLOB: {
char *text = 0;
unsigned char *blob = (unsigned char *) sqlite3_value_blob(argv[0]);
int nblob = sqlite3_value_bytes(argv[0]);
if (2 * nblob + 4 > 1000000000) {
sqlite3_result_error(context, "value too large", -1);
return;
}
text = (char *) sqlite3_malloc((2 * nblob) + 4);
if (!text) {
sqlite3_result_error(context, "out of memory", -1);
} else {
int i, k = 0;
static const char xdigits[] = "0123456789ABCDEF";
text[k++] = '"';
for (i = 0; i < nblob; i++) {
text[k++] = xdigits[(blob[i] >> 4 ) & 0x0F];
text[k++] = xdigits[blob[i] & 0x0F];
}
text[k++] = '"';
text[k] = '\0';
sqlite3_result_text(context, text, k, SQLITE_TRANSIENT);
sqlite3_free(text);
}
break;
}
case SQLITE_TEXT: {
int i, n;
const unsigned char *arg = sqlite3_value_text(argv[0]);
char *p;
if (!arg) {
return;
}
for (i = 0, n = 0; arg[i]; i++) {
if (arg[i] == '"') {
n++;
}
}
if (i + n + 3 > 1000000000) {
sqlite3_result_error(context, "value too large", -1);
return;
}
p = sqlite3_malloc(i + n + 3);
if (!p) {
sqlite3_result_error(context, "out of memory", -1);
return;
}
p[0] = '"';
for (i = 0, n = 1; arg[i]; i++) {
p[n++] = arg[i];
if (arg[i] == '"') {
p[n++] = '"';
}
}
p[n++] = '"';
p[n] = 0;
sqlite3_result_text(context, p, n, SQLITE_TRANSIENT);
sqlite3_free(p);
break;
}
}
}
/**
* SQLite function to make XML indentation
* @param context SQLite function context
* @param argc number of arguments
* @param argv argument vector
*/
static void
indent_xml_func(sqlite3_context *context, int argc, sqlite3_value **argv)
{
static const char spaces[] = " ";
int n = 0;
if (argc > 0) {
n = sqlite3_value_int(argv[0]);
if (n > 32) {
n = 32;
} else if (n < 0) {
n = 0;
}
}
sqlite3_result_text(context, spaces, n, SQLITE_STATIC);
}
/**
* SQLite function to quote a string for XML
* @param context SQLite function context
* @param argc number of arguments
* @param argv argument vector
*/
static void
quote_xml_func(sqlite3_context *context, int argc, sqlite3_value **argv)
{
static const char xdigits[] = "0123456789ABCDEF";
int type, addtype = 0;
if (argc < 1) {
return;
}
if (argc > 1) {
addtype = sqlite3_value_int(argv[1]);
}
type = sqlite3_value_type(argv[0]);
switch (type) {
case SQLITE_NULL: {
if (addtype > 0) {
sqlite3_result_text(context, " TYPE=\"NULL\">", -1, SQLITE_STATIC);
} else {
sqlite3_result_text(context, "", 0, SQLITE_STATIC);
}
break;
}
case SQLITE_INTEGER:
case SQLITE_FLOAT: {
if (addtype > 0) {
char *text = (char *) sqlite3_malloc(128);
int k;
if (!text) {
sqlite3_result_error(context, "out of memory", -1);
return;
}
strcpy(text, (type == SQLITE_FLOAT) ? " TYPE=\"REAL\">" :
" TYPE=\"INTEGER\">");
k = strlen(text);
strcpy(text + k, (char *) sqlite3_value_text(argv[0]));
k = strlen(text);
sqlite3_result_text(context, text, k, SQLITE_TRANSIENT);
sqlite3_free(text);
} else {
sqlite3_result_value(context, argv[0]);
}
break;
}
case SQLITE_BLOB: {
char *text = 0;
unsigned char *blob = (unsigned char *) sqlite3_value_blob(argv[0]);
int nblob = sqlite3_value_bytes(argv[0]);
int i, k = 0;
if (6 * nblob + 34 > 1000000000) {
sqlite3_result_error(context, "value too large", -1);
return;
}
text = (char *) sqlite3_malloc((6 * nblob) + 34);
if (!text) {
sqlite3_result_error(context, "out of memory", -1);
return;
}
if (addtype > 0) {
strcpy(text, " TYPE=\"BLOB\">");
k = strlen(text);
}
for (i = 0; i < nblob; i++) {
text[k++] = '&';
text[k++] = '#';
text[k++] = 'x';
text[k++] = xdigits[(blob[i] >> 4 ) & 0x0F];
text[k++] = xdigits[blob[i] & 0x0F];
text[k++] = ';';
}
text[k] = '\0';
sqlite3_result_text(context, text, k, SQLITE_TRANSIENT);
sqlite3_free(text);
break;
}
case SQLITE_TEXT: {
int i, n;
const unsigned char *arg = sqlite3_value_text(argv[0]);
char *p;
if (!arg) {
return;
}
for (i = 0, n = 0; arg[i]; i++) {
if ((arg[i] == '"') || (arg[i] == '\'') ||
(arg[i] == '<') || (arg[i] == '>') ||
(arg[i] == '&') || (arg[i] < ' ')) {
n += 5;
}
}
if (i + n + 32 > 1000000000) {
sqlite3_result_error(context, "value too large", -1);
return;
}
p = sqlite3_malloc(i + n + 32);
if (!p) {
sqlite3_result_error(context, "out of memory", -1);
return;
}
n = 0;
if (addtype > 0) {
strcpy(p, " TYPE=\"TEXT\">");
n = strlen(p);
}
for (i = 0; arg[i]; i++) {
if (arg[i] == '"') {
p[n++] = '&';
p[n++] = 'q';
p[n++] = 'u';
p[n++] = 'o';
p[n++] = 't';
p[n++] = ';';
} else if (arg[i] == '\'') {
p[n++] = '&';
p[n++] = 'a';
p[n++] = 'p';
p[n++] = 'o';
p[n++] = 's';
p[n++] = ';';
} else if (arg[i] == '<') {
p[n++] = '&';
p[n++] = 'l';
p[n++] = 't';
p[n++] = ';';
} else if (arg[i] == '>') {
p[n++] = '&';
p[n++] = 'g';
p[n++] = 't';
p[n++] = ';';
} else if (arg[i] == '&') {
p[n++] = '&';
p[n++] = 'a';
p[n++] = 'm';
p[n++] = 'p';
p[n++] = ';';
} else if (arg[i] < ' ') {
p[n++] = '&';
p[n++] = '#';
p[n++] = 'x';
p[n++] = xdigits[(arg[i] >> 4 ) & 0x0F];
p[n++] = xdigits[arg[i] & 0x0F];
p[n++] = ';';
} else if (addtype < 0 && (arg[i] == ' ')) {
p[n++] = '&';
p[n++] = '#';
p[n++] = 'x';
p[n++] = xdigits[(arg[i] >> 4 ) & 0x0F];
p[n++] = xdigits[arg[i] & 0x0F];
p[n++] = ';';
} else {
p[n++] = arg[i];
}
}
p[n] = '\0';
sqlite3_result_text(context, p, n, SQLITE_TRANSIENT);
sqlite3_free(p);
break;
}
}
}
/**
* SQLite function to read and process SQL commands from a file
* @param ctx SQLite function context
* @param nargs number of arguments
* @param args argument vector
*/
static void
import_func(sqlite3_context *ctx, int nargs, sqlite3_value **args)
{
sqlite3 *db = (sqlite3 *) sqlite3_user_data(ctx);
int changes0 = sqlite3_changes(db);
char *filename = 0;
FILE *fin;
#ifdef _WIN32
char fnbuf[MAX_PATH];
#endif
if (nargs > 0) {
if (sqlite3_value_type(args[0]) != SQLITE_NULL) {
filename = (char *) sqlite3_value_text(args[0]);
}
}
#ifdef _WIN32
if (!filename) {
OPENFILENAME ofn;
memset(&ofn, 0, sizeof (ofn));
memset(fnbuf, 0, sizeof (fnbuf));
ofn.lStructSize = sizeof (ofn);
ofn.lpstrFile = fnbuf;
ofn.nMaxFile = MAX_PATH;
ofn.Flags = OFN_HIDEREADONLY | OFN_NOCHANGEDIR | OFN_FILEMUSTEXIST |
OFN_EXPLORER | OFN_PATHMUSTEXIST;
if (GetOpenFileName(&ofn)) {
filename = fnbuf;
}
}
#endif
if (!filename) {
goto done;
}
fin = fopen(filename, "r");
if (!fin) {
goto done;
}
process_input(db, fin);
fclose(fin);
done:
sqlite3_result_int(ctx, sqlite3_changes(db) - changes0);
}
/* see doc in impexp.h */
int
impexp_import_sql(sqlite3 *db, char *filename)
{
int changes0;
FILE *fin;
#ifdef _WIN32
char fnbuf[MAX_PATH];
#endif
if (!db) {
return 0;
}
changes0 = sqlite3_changes(db);
#ifdef _WIN32
if (!filename) {
OPENFILENAME ofn;
memset(&ofn, 0, sizeof (ofn));
memset(fnbuf, 0, sizeof (fnbuf));
ofn.lStructSize = sizeof (ofn);
ofn.lpstrFile = fnbuf;
ofn.nMaxFile = MAX_PATH;
ofn.Flags = OFN_HIDEREADONLY | OFN_NOCHANGEDIR | OFN_FILEMUSTEXIST |
OFN_EXPLORER | OFN_PATHMUSTEXIST;
if (GetOpenFileName(&ofn)) {
filename = fnbuf;
}
}
#endif
if (!filename) {
goto done;
}
fin = fopen(filename, "r");
if (!fin) {
goto done;
}
process_input(db, fin);
fclose(fin);
done:
return sqlite3_changes(db) - changes0;
}
/**
* @typedef DUMP_DATA
* @struct DUMP_DATA
* Structure for dump callback
*/
typedef struct {
sqlite3 *db; /**< SQLite database pointer */
int with_schema; /**< if true, output schema */
int quote_mode; /**< mode for quoting data */
char *where; /**< optional where clause of dump */
int nlines; /**< counter for output lines */
int indent; /**< current indent level */
FILE *out; /**< output file pointer */
} DUMP_DATA;
/**
* Write indentation to dump
* @param dd information structure for dump
*/
static void
indent(DUMP_DATA *dd)
{
int i;
for (i = 0; i < dd->indent; i++) {
fputc(' ', dd->out);
}
}
/**
* Execute SQL to dump contents of one table
* @param dd information structure for dump
* @param errp pointer receiving error message
* @param fmt if true, use sqlite3_*printf() on SQL
* @param query SQL text to perform dump of table
* @param ... optional arguments
* @result SQLite error code
*/
static int
table_dump(DUMP_DATA *dd, char **errp, int fmt, const char *query, ...)
{
sqlite3_stmt *select = 0;
int rc;
const char *rest, *q = query;
va_list ap;
if (errp && *errp) {
sqlite3_free(*errp);
*errp = 0;
}
if (fmt) {
va_start(ap, query);
q = sqlite3_vmprintf(query, ap);
va_end(ap);
if (!q) {
return SQLITE_NOMEM;
}
}
#if defined(HAVE_SQLITE3PREPAREV2) && HAVE_SQLITE3PREPAREV2
rc = sqlite3_prepare_v2(dd->db, q, -1, &select, &rest);
#else
rc = sqlite3_prepare(dd->db, q, -1, &select, &rest);
#endif
if (fmt) {
sqlite3_free((char *) q);
}
if ((rc != SQLITE_OK) || !select) {
return rc;
}
rc = sqlite3_step(select);
while (rc == SQLITE_ROW) {
if (fputs((char *) sqlite3_column_text(select, 0), dd->out) > 0) {
dd->nlines++;
}
if (dd->quote_mode >= 0) {
fputc(';', dd->out);
}
if (dd->quote_mode == -1) {
fputc('\r', dd->out);
}
if (dd->quote_mode >= -1) {
fputc('\n', dd->out);
}
rc = sqlite3_step(select);
}
rc = sqlite3_finalize(select);
if (rc != SQLITE_OK) {
if (errp) {