725 lines
21 KiB
C
725 lines
21 KiB
C
/*
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** 2016-03-13
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**
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** The author disclaims copyright to this source code. In place of
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** a legal notice, here is a blessing:
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**
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** May you do good and not evil.
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** May you find forgiveness for yourself and forgive others.
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** May you share freely, never taking more than you give.
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**
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******************************************************************************
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**
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** This file implements a C-language subroutine that converts the content
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** of an SQLite database into UTF-8 text SQL statements that can be used
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** to exactly recreate the original database. ROWID values are preserved.
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**
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** A prototype of the implemented subroutine is this:
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**
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** int sqlite3_db_dump(
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** sqlite3 *db,
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** const char *zSchema,
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** const char *zTable,
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** void (*xCallback)(void*, const char*),
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** void *pArg
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** );
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**
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** The db parameter is the database connection. zSchema is the schema within
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** that database which is to be dumped. Usually the zSchema is "main" but
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** can also be "temp" or any ATTACH-ed database. If zTable is not NULL, then
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** only the content of that one table is dumped. If zTable is NULL, then all
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** tables are dumped.
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**
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** The generate text is passed to xCallback() in multiple calls. The second
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** argument to xCallback() is a copy of the pArg parameter. The first
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** argument is some of the output text that this routine generates. The
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** signature to xCallback() is designed to make it compatible with fputs().
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**
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** The sqlite3_db_dump() subroutine returns SQLITE_OK on success or some error
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** code if it encounters a problem.
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**
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** If this file is compiled with -DDBDUMP_STANDALONE then a "main()" routine
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** is included so that this routine becomes a command-line utility. The
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** command-line utility takes two or three arguments which are the name
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** of the database file, the schema, and optionally the table, forming the
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** first three arguments of a single call to the library routine.
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*/
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#include "sqlite3.h"
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#include <stdarg.h>
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#include <string.h>
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#include <ctype.h>
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/*
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** The state of the dump process.
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*/
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typedef struct DState DState;
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struct DState {
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sqlite3 *db; /* The database connection */
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int nErr; /* Number of errors seen so far */
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int rc; /* Error code */
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int writableSchema; /* True if in writable_schema mode */
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int (*xCallback)(const char*,void*); /* Send output here */
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void *pArg; /* Argument to xCallback() */
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};
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/*
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** A variable length string to which one can append text.
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*/
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typedef struct DText DText;
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struct DText {
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char *z; /* The text */
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int n; /* Number of bytes of content in z[] */
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int nAlloc; /* Number of bytes allocated to z[] */
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};
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/*
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** Initialize and destroy a DText object
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*/
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static void initText(DText *p){
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memset(p, 0, sizeof(*p));
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}
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static void freeText(DText *p){
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sqlite3_free(p->z);
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initText(p);
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}
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/* zIn is either a pointer to a NULL-terminated string in memory obtained
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** from malloc(), or a NULL pointer. The string pointed to by zAppend is
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** added to zIn, and the result returned in memory obtained from malloc().
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** zIn, if it was not NULL, is freed.
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**
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** If the third argument, quote, is not '\0', then it is used as a
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** quote character for zAppend.
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*/
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static void appendText(DText *p, char const *zAppend, char quote){
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int len;
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int i;
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int nAppend = (int)(strlen(zAppend) & 0x3fffffff);
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len = nAppend+p->n+1;
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if( quote ){
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len += 2;
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for(i=0; i<nAppend; i++){
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if( zAppend[i]==quote ) len++;
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}
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}
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if( p->n+len>=p->nAlloc ){
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char *zNew;
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p->nAlloc = p->nAlloc*2 + len + 20;
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zNew = sqlite3_realloc(p->z, p->nAlloc);
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if( zNew==0 ){
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freeText(p);
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return;
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}
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p->z = zNew;
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}
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if( quote ){
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char *zCsr = p->z+p->n;
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*zCsr++ = quote;
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for(i=0; i<nAppend; i++){
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*zCsr++ = zAppend[i];
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if( zAppend[i]==quote ) *zCsr++ = quote;
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}
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*zCsr++ = quote;
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p->n = (int)(zCsr - p->z);
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*zCsr = '\0';
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}else{
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memcpy(p->z+p->n, zAppend, nAppend);
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p->n += nAppend;
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p->z[p->n] = '\0';
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}
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}
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/*
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** Attempt to determine if identifier zName needs to be quoted, either
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** because it contains non-alphanumeric characters, or because it is an
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** SQLite keyword. Be conservative in this estimate: When in doubt assume
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** that quoting is required.
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**
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** Return '"' if quoting is required. Return 0 if no quoting is required.
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*/
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static char quoteChar(const char *zName){
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int i;
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if( !isalpha((unsigned char)zName[0]) && zName[0]!='_' ) return '"';
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for(i=0; zName[i]; i++){
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if( !isalnum((unsigned char)zName[i]) && zName[i]!='_' ) return '"';
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}
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return sqlite3_keyword_check(zName, i) ? '"' : 0;
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}
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/*
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** Release memory previously allocated by tableColumnList().
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*/
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static void freeColumnList(char **azCol){
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int i;
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for(i=1; azCol[i]; i++){
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sqlite3_free(azCol[i]);
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}
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/* azCol[0] is a static string */
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sqlite3_free(azCol);
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}
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/*
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** Return a list of pointers to strings which are the names of all
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** columns in table zTab. The memory to hold the names is dynamically
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** allocated and must be released by the caller using a subsequent call
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** to freeColumnList().
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**
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** The azCol[0] entry is usually NULL. However, if zTab contains a rowid
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** value that needs to be preserved, then azCol[0] is filled in with the
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** name of the rowid column.
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**
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** The first regular column in the table is azCol[1]. The list is terminated
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** by an entry with azCol[i]==0.
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*/
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static char **tableColumnList(DState *p, const char *zTab){
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char **azCol = 0;
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sqlite3_stmt *pStmt = 0;
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char *zSql;
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int nCol = 0;
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int nAlloc = 0;
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int nPK = 0; /* Number of PRIMARY KEY columns seen */
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int isIPK = 0; /* True if one PRIMARY KEY column of type INTEGER */
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int preserveRowid = 1;
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int rc;
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zSql = sqlite3_mprintf("PRAGMA table_info=%Q", zTab);
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if( zSql==0 ) return 0;
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rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
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sqlite3_free(zSql);
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if( rc ) return 0;
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while( sqlite3_step(pStmt)==SQLITE_ROW ){
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if( nCol>=nAlloc-2 ){
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char **azNew;
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nAlloc = nAlloc*2 + nCol + 10;
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azNew = sqlite3_realloc64(azCol, nAlloc*sizeof(azCol[0]));
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if( azNew==0 ) goto col_oom;
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azCol = azNew;
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azCol[0] = 0;
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}
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azCol[++nCol] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 1));
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if( azCol[nCol]==0 ) goto col_oom;
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if( sqlite3_column_int(pStmt, 5) ){
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nPK++;
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if( nPK==1
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&& sqlite3_stricmp((const char*)sqlite3_column_text(pStmt,2),
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"INTEGER")==0
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){
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isIPK = 1;
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}else{
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isIPK = 0;
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}
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}
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}
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sqlite3_finalize(pStmt);
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pStmt = 0;
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azCol[nCol+1] = 0;
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/* The decision of whether or not a rowid really needs to be preserved
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** is tricky. We never need to preserve a rowid for a WITHOUT ROWID table
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** or a table with an INTEGER PRIMARY KEY. We are unable to preserve
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** rowids on tables where the rowid is inaccessible because there are other
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** columns in the table named "rowid", "_rowid_", and "oid".
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*/
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if( isIPK ){
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/* If a single PRIMARY KEY column with type INTEGER was seen, then it
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** might be an alise for the ROWID. But it might also be a WITHOUT ROWID
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** table or a INTEGER PRIMARY KEY DESC column, neither of which are
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** ROWID aliases. To distinguish these cases, check to see if
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** there is a "pk" entry in "PRAGMA index_list". There will be
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** no "pk" index if the PRIMARY KEY really is an alias for the ROWID.
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*/
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zSql = sqlite3_mprintf("SELECT 1 FROM pragma_index_list(%Q)"
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" WHERE origin='pk'", zTab);
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if( zSql==0 ) goto col_oom;
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rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
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sqlite3_free(zSql);
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if( rc ){
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freeColumnList(azCol);
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return 0;
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}
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rc = sqlite3_step(pStmt);
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sqlite3_finalize(pStmt);
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pStmt = 0;
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preserveRowid = rc==SQLITE_ROW;
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}
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if( preserveRowid ){
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/* Only preserve the rowid if we can find a name to use for the
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** rowid */
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static char *azRowid[] = { "rowid", "_rowid_", "oid" };
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int i, j;
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for(j=0; j<3; j++){
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for(i=1; i<=nCol; i++){
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if( sqlite3_stricmp(azRowid[j],azCol[i])==0 ) break;
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}
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if( i>nCol ){
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/* At this point, we know that azRowid[j] is not the name of any
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** ordinary column in the table. Verify that azRowid[j] is a valid
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** name for the rowid before adding it to azCol[0]. WITHOUT ROWID
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** tables will fail this last check */
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rc = sqlite3_table_column_metadata(p->db,0,zTab,azRowid[j],0,0,0,0,0);
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if( rc==SQLITE_OK ) azCol[0] = azRowid[j];
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break;
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}
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}
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}
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return azCol;
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col_oom:
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sqlite3_finalize(pStmt);
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freeColumnList(azCol);
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p->nErr++;
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p->rc = SQLITE_NOMEM;
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return 0;
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}
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/*
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** Send mprintf-formatted content to the output callback.
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*/
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static void output_formatted(DState *p, const char *zFormat, ...){
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va_list ap;
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char *z;
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va_start(ap, zFormat);
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z = sqlite3_vmprintf(zFormat, ap);
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va_end(ap);
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p->xCallback(z, p->pArg);
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sqlite3_free(z);
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}
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/*
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** Find a string that is not found anywhere in z[]. Return a pointer
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** to that string.
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**
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** Try to use zA and zB first. If both of those are already found in z[]
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** then make up some string and store it in the buffer zBuf.
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*/
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static const char *unused_string(
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const char *z, /* Result must not appear anywhere in z */
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const char *zA, const char *zB, /* Try these first */
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char *zBuf /* Space to store a generated string */
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){
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unsigned i = 0;
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if( strstr(z, zA)==0 ) return zA;
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if( strstr(z, zB)==0 ) return zB;
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do{
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sqlite3_snprintf(20,zBuf,"(%s%u)", zA, i++);
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}while( strstr(z,zBuf)!=0 );
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return zBuf;
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}
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/*
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** Output the given string as a quoted string using SQL quoting conventions.
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** Additionallly , escape the "\n" and "\r" characters so that they do not
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** get corrupted by end-of-line translation facilities in some operating
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** systems.
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*/
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static void output_quoted_escaped_string(DState *p, const char *z){
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int i;
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char c;
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for(i=0; (c = z[i])!=0 && c!='\'' && c!='\n' && c!='\r'; i++){}
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if( c==0 ){
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output_formatted(p,"'%s'",z);
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}else{
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const char *zNL = 0;
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const char *zCR = 0;
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int nNL = 0;
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int nCR = 0;
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char zBuf1[20], zBuf2[20];
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for(i=0; z[i]; i++){
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if( z[i]=='\n' ) nNL++;
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if( z[i]=='\r' ) nCR++;
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}
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if( nNL ){
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p->xCallback("replace(", p->pArg);
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zNL = unused_string(z, "\\n", "\\012", zBuf1);
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}
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if( nCR ){
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p->xCallback("replace(", p->pArg);
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zCR = unused_string(z, "\\r", "\\015", zBuf2);
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}
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p->xCallback("'", p->pArg);
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while( *z ){
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for(i=0; (c = z[i])!=0 && c!='\n' && c!='\r' && c!='\''; i++){}
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if( c=='\'' ) i++;
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if( i ){
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output_formatted(p, "%.*s", i, z);
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z += i;
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}
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if( c=='\'' ){
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p->xCallback("'", p->pArg);
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continue;
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}
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if( c==0 ){
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break;
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}
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z++;
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if( c=='\n' ){
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p->xCallback(zNL, p->pArg);
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continue;
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}
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p->xCallback(zCR, p->pArg);
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}
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p->xCallback("'", p->pArg);
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if( nCR ){
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output_formatted(p, ",'%s',char(13))", zCR);
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}
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if( nNL ){
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output_formatted(p, ",'%s',char(10))", zNL);
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}
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}
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}
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/*
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** This is an sqlite3_exec callback routine used for dumping the database.
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** Each row received by this callback consists of a table name,
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** the table type ("index" or "table") and SQL to create the table.
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** This routine should print text sufficient to recreate the table.
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*/
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static int dump_callback(void *pArg, int nArg, char **azArg, char **azCol){
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int rc;
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const char *zTable;
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const char *zType;
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const char *zSql;
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DState *p = (DState*)pArg;
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sqlite3_stmt *pStmt;
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(void)azCol;
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if( nArg!=3 ) return 1;
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zTable = azArg[0];
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zType = azArg[1];
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zSql = azArg[2];
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if( strcmp(zTable, "sqlite_sequence")==0 ){
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p->xCallback("DELETE FROM sqlite_sequence;\n", p->pArg);
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}else if( sqlite3_strglob("sqlite_stat?", zTable)==0 ){
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p->xCallback("ANALYZE sqlite_schema;\n", p->pArg);
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}else if( strncmp(zTable, "sqlite_", 7)==0 ){
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return 0;
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}else if( strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){
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if( !p->writableSchema ){
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p->xCallback("PRAGMA writable_schema=ON;\n", p->pArg);
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p->writableSchema = 1;
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}
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output_formatted(p,
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"INSERT INTO sqlite_schema(type,name,tbl_name,rootpage,sql)"
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"VALUES('table','%q','%q',0,'%q');",
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zTable, zTable, zSql);
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return 0;
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}else{
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if( sqlite3_strglob("CREATE TABLE ['\"]*", zSql)==0 ){
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p->xCallback("CREATE TABLE IF NOT EXISTS ", p->pArg);
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p->xCallback(zSql+13, p->pArg);
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}else{
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p->xCallback(zSql, p->pArg);
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}
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p->xCallback(";\n", p->pArg);
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}
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if( strcmp(zType, "table")==0 ){
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DText sSelect;
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DText sTable;
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char **azTCol;
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int i;
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int nCol;
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azTCol = tableColumnList(p, zTable);
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if( azTCol==0 ) return 0;
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initText(&sTable);
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appendText(&sTable, "INSERT INTO ", 0);
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/* Always quote the table name, even if it appears to be pure ascii,
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** in case it is a keyword. Ex: INSERT INTO "table" ... */
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appendText(&sTable, zTable, quoteChar(zTable));
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/* If preserving the rowid, add a column list after the table name.
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** In other words: "INSERT INTO tab(rowid,a,b,c,...) VALUES(...)"
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** instead of the usual "INSERT INTO tab VALUES(...)".
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*/
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if( azTCol[0] ){
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appendText(&sTable, "(", 0);
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appendText(&sTable, azTCol[0], 0);
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for(i=1; azTCol[i]; i++){
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appendText(&sTable, ",", 0);
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appendText(&sTable, azTCol[i], quoteChar(azTCol[i]));
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}
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appendText(&sTable, ")", 0);
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}
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appendText(&sTable, " VALUES(", 0);
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/* Build an appropriate SELECT statement */
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initText(&sSelect);
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appendText(&sSelect, "SELECT ", 0);
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if( azTCol[0] ){
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appendText(&sSelect, azTCol[0], 0);
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appendText(&sSelect, ",", 0);
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}
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for(i=1; azTCol[i]; i++){
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appendText(&sSelect, azTCol[i], quoteChar(azTCol[i]));
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if( azTCol[i+1] ){
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appendText(&sSelect, ",", 0);
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}
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}
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nCol = i;
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if( azTCol[0]==0 ) nCol--;
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freeColumnList(azTCol);
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appendText(&sSelect, " FROM ", 0);
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appendText(&sSelect, zTable, quoteChar(zTable));
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rc = sqlite3_prepare_v2(p->db, sSelect.z, -1, &pStmt, 0);
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if( rc!=SQLITE_OK ){
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p->nErr++;
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if( p->rc==SQLITE_OK ) p->rc = rc;
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}else{
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while( SQLITE_ROW==sqlite3_step(pStmt) ){
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p->xCallback(sTable.z, p->pArg);
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for(i=0; i<nCol; i++){
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if( i ) p->xCallback(",", p->pArg);
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switch( sqlite3_column_type(pStmt,i) ){
|
|
case SQLITE_INTEGER: {
|
|
output_formatted(p, "%lld", sqlite3_column_int64(pStmt,i));
|
|
break;
|
|
}
|
|
case SQLITE_FLOAT: {
|
|
double r = sqlite3_column_double(pStmt,i);
|
|
sqlite3_uint64 ur;
|
|
memcpy(&ur,&r,sizeof(r));
|
|
if( ur==0x7ff0000000000000LL ){
|
|
p->xCallback("1e999", p->pArg);
|
|
}else if( ur==0xfff0000000000000LL ){
|
|
p->xCallback("-1e999", p->pArg);
|
|
}else{
|
|
output_formatted(p, "%!.20g", r);
|
|
}
|
|
break;
|
|
}
|
|
case SQLITE_NULL: {
|
|
p->xCallback("NULL", p->pArg);
|
|
break;
|
|
}
|
|
case SQLITE_TEXT: {
|
|
output_quoted_escaped_string(p,
|
|
(const char*)sqlite3_column_text(pStmt,i));
|
|
break;
|
|
}
|
|
case SQLITE_BLOB: {
|
|
int nByte = sqlite3_column_bytes(pStmt,i);
|
|
unsigned char *a = (unsigned char*)sqlite3_column_blob(pStmt,i);
|
|
int j;
|
|
p->xCallback("x'", p->pArg);
|
|
for(j=0; j<nByte; j++){
|
|
char zWord[3];
|
|
zWord[0] = "0123456789abcdef"[(a[j]>>4)&15];
|
|
zWord[1] = "0123456789abcdef"[a[j]&15];
|
|
zWord[2] = 0;
|
|
p->xCallback(zWord, p->pArg);
|
|
}
|
|
p->xCallback("'", p->pArg);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
p->xCallback(");\n", p->pArg);
|
|
}
|
|
}
|
|
sqlite3_finalize(pStmt);
|
|
freeText(&sTable);
|
|
freeText(&sSelect);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
** Execute a query statement that will generate SQL output. Print
|
|
** the result columns, comma-separated, on a line and then add a
|
|
** semicolon terminator to the end of that line.
|
|
**
|
|
** If the number of columns is 1 and that column contains text "--"
|
|
** then write the semicolon on a separate line. That way, if a
|
|
** "--" comment occurs at the end of the statement, the comment
|
|
** won't consume the semicolon terminator.
|
|
*/
|
|
static void output_sql_from_query(
|
|
DState *p, /* Query context */
|
|
const char *zSelect, /* SELECT statement to extract content */
|
|
...
|
|
){
|
|
sqlite3_stmt *pSelect;
|
|
int rc;
|
|
int nResult;
|
|
int i;
|
|
const char *z;
|
|
char *zSql;
|
|
va_list ap;
|
|
va_start(ap, zSelect);
|
|
zSql = sqlite3_vmprintf(zSelect, ap);
|
|
va_end(ap);
|
|
if( zSql==0 ){
|
|
p->rc = SQLITE_NOMEM;
|
|
p->nErr++;
|
|
return;
|
|
}
|
|
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pSelect, 0);
|
|
sqlite3_free(zSql);
|
|
if( rc!=SQLITE_OK || !pSelect ){
|
|
output_formatted(p, "/**** ERROR: (%d) %s *****/\n", rc,
|
|
sqlite3_errmsg(p->db));
|
|
p->nErr++;
|
|
return;
|
|
}
|
|
rc = sqlite3_step(pSelect);
|
|
nResult = sqlite3_column_count(pSelect);
|
|
while( rc==SQLITE_ROW ){
|
|
z = (const char*)sqlite3_column_text(pSelect, 0);
|
|
p->xCallback(z, p->pArg);
|
|
for(i=1; i<nResult; i++){
|
|
p->xCallback(",", p->pArg);
|
|
p->xCallback((const char*)sqlite3_column_text(pSelect,i), p->pArg);
|
|
}
|
|
if( z==0 ) z = "";
|
|
while( z[0] && (z[0]!='-' || z[1]!='-') ) z++;
|
|
if( z[0] ){
|
|
p->xCallback("\n;\n", p->pArg);
|
|
}else{
|
|
p->xCallback(";\n", p->pArg);
|
|
}
|
|
rc = sqlite3_step(pSelect);
|
|
}
|
|
rc = sqlite3_finalize(pSelect);
|
|
if( rc!=SQLITE_OK ){
|
|
output_formatted(p, "/**** ERROR: (%d) %s *****/\n", rc,
|
|
sqlite3_errmsg(p->db));
|
|
if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** Run zQuery. Use dump_callback() as the callback routine so that
|
|
** the contents of the query are output as SQL statements.
|
|
**
|
|
** If we get a SQLITE_CORRUPT error, rerun the query after appending
|
|
** "ORDER BY rowid DESC" to the end.
|
|
*/
|
|
static void run_schema_dump_query(
|
|
DState *p,
|
|
const char *zQuery,
|
|
...
|
|
){
|
|
char *zErr = 0;
|
|
char *z;
|
|
va_list ap;
|
|
va_start(ap, zQuery);
|
|
z = sqlite3_vmprintf(zQuery, ap);
|
|
va_end(ap);
|
|
sqlite3_exec(p->db, z, dump_callback, p, &zErr);
|
|
sqlite3_free(z);
|
|
if( zErr ){
|
|
output_formatted(p, "/****** %s ******/\n", zErr);
|
|
sqlite3_free(zErr);
|
|
p->nErr++;
|
|
zErr = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** Convert an SQLite database into SQL statements that will recreate that
|
|
** database.
|
|
*/
|
|
int sqlite3_db_dump(
|
|
sqlite3 *db, /* The database connection */
|
|
const char *zSchema, /* Which schema to dump. Usually "main". */
|
|
const char *zTable, /* Which table to dump. NULL means everything. */
|
|
int (*xCallback)(const char*,void*), /* Output sent to this callback */
|
|
void *pArg /* Second argument of the callback */
|
|
){
|
|
DState x;
|
|
memset(&x, 0, sizeof(x));
|
|
x.rc = sqlite3_exec(db, "BEGIN", 0, 0, 0);
|
|
if( x.rc ) return x.rc;
|
|
x.db = db;
|
|
x.xCallback = xCallback;
|
|
x.pArg = pArg;
|
|
xCallback("PRAGMA foreign_keys=OFF;\nBEGIN TRANSACTION;\n", pArg);
|
|
if( zTable==0 ){
|
|
run_schema_dump_query(&x,
|
|
"SELECT name, type, sql FROM \"%w\".sqlite_schema "
|
|
"WHERE sql NOT NULL AND type=='table' AND name!='sqlite_sequence'",
|
|
zSchema
|
|
);
|
|
run_schema_dump_query(&x,
|
|
"SELECT name, type, sql FROM \"%w\".sqlite_schema "
|
|
"WHERE name=='sqlite_sequence'", zSchema
|
|
);
|
|
output_sql_from_query(&x,
|
|
"SELECT sql FROM sqlite_schema "
|
|
"WHERE sql NOT NULL AND type IN ('index','trigger','view')", 0
|
|
);
|
|
}else{
|
|
run_schema_dump_query(&x,
|
|
"SELECT name, type, sql FROM \"%w\".sqlite_schema "
|
|
"WHERE tbl_name=%Q COLLATE nocase AND type=='table'"
|
|
" AND sql NOT NULL",
|
|
zSchema, zTable
|
|
);
|
|
output_sql_from_query(&x,
|
|
"SELECT sql FROM \"%w\".sqlite_schema "
|
|
"WHERE sql NOT NULL"
|
|
" AND type IN ('index','trigger','view')"
|
|
" AND tbl_name=%Q COLLATE nocase",
|
|
zSchema, zTable
|
|
);
|
|
}
|
|
if( x.writableSchema ){
|
|
xCallback("PRAGMA writable_schema=OFF;\n", pArg);
|
|
}
|
|
xCallback(x.nErr ? "ROLLBACK; -- due to errors\n" : "COMMIT;\n", pArg);
|
|
sqlite3_exec(db, "COMMIT", 0, 0, 0);
|
|
return x.rc;
|
|
}
|
|
|
|
|
|
|
|
/* The generic subroutine is above. The code the follows implements
|
|
** the command-line interface.
|
|
*/
|
|
#ifdef DBDUMP_STANDALONE
|
|
#include <stdio.h>
|
|
|
|
/*
|
|
** Command-line interface
|
|
*/
|
|
int main(int argc, char **argv){
|
|
sqlite3 *db;
|
|
const char *zDb;
|
|
const char *zSchema;
|
|
const char *zTable = 0;
|
|
int rc;
|
|
|
|
if( argc<2 || argc>4 ){
|
|
fprintf(stderr, "Usage: %s DATABASE ?SCHEMA? ?TABLE?\n", argv[0]);
|
|
return 1;
|
|
}
|
|
zDb = argv[1];
|
|
zSchema = argc>=3 ? argv[2] : "main";
|
|
zTable = argc==4 ? argv[3] : 0;
|
|
|
|
rc = sqlite3_open(zDb, &db);
|
|
if( rc ){
|
|
fprintf(stderr, "Cannot open \"%s\": %s\n", zDb, sqlite3_errmsg(db));
|
|
sqlite3_close(db);
|
|
return 1;
|
|
}
|
|
rc = sqlite3_db_dump(db, zSchema, zTable,
|
|
(int(*)(const char*,void*))fputs, (void*)stdout);
|
|
if( rc ){
|
|
fprintf(stderr, "Error: sqlite3_db_dump() returns %d\n", rc);
|
|
}
|
|
sqlite3_close(db);
|
|
return rc!=SQLITE_OK;
|
|
}
|
|
#endif /* DBDUMP_STANDALONE */
|