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04fcef00ee
sqlite/test/fuzzcheck.c
drh e45985b595 Fix a bug in the custom in-memory VFS used by fuzzcheck. This bug masks 
other bugs that should have caused some existing fuzzdata7.db entries to
fail, and so this fix is initially on a branch until those other bugs can
be repaired.

FossilOrigin-Name: e0994e99955cf11f23dba029b5ed7f150f467887558848d5f03510e2fb5855f9
2018-12-14 02:29:56 +00:00

1335 lines
41 KiB
C
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/*
** 2015-05-25
**
** 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.
**
*************************************************************************
**
** This is a utility program designed to aid running regressions tests on
** the SQLite library using data from an external fuzzer, such as American
** Fuzzy Lop (AFL) (http://lcamtuf.coredump.cx/afl/).
**
** This program reads content from an SQLite database file with the following
** schema:
**
** CREATE TABLE db(
** dbid INTEGER PRIMARY KEY, -- database id
** dbcontent BLOB -- database disk file image
** );
** CREATE TABLE xsql(
** sqlid INTEGER PRIMARY KEY, -- SQL script id
** sqltext TEXT -- Text of SQL statements to run
** );
** CREATE TABLE IF NOT EXISTS readme(
** msg TEXT -- Human-readable description of this test collection
** );
**
** For each database file in the DB table, the SQL text in the XSQL table
** is run against that database. All README.MSG values are printed prior
** to the start of the test (unless the --quiet option is used). If the
** DB table is empty, then all entries in XSQL are run against an empty
** in-memory database.
**
** This program is looking for crashes, assertion faults, and/or memory leaks.
** No attempt is made to verify the output. The assumption is that either all
** of the database files or all of the SQL statements are malformed inputs,
** generated by a fuzzer, that need to be checked to make sure they do not
** present a security risk.
**
** This program also includes some command-line options to help with
** creation and maintenance of the source content database. The command
**
** ./fuzzcheck database.db --load-sql FILE...
**
** Loads all FILE... arguments into the XSQL table. The --load-db option
** works the same but loads the files into the DB table. The -m option can
** be used to initialize the README table. The "database.db" file is created
** if it does not previously exist. Example:
**
** ./fuzzcheck new.db --load-sql *.sql
** ./fuzzcheck new.db --load-db *.db
** ./fuzzcheck new.db -m 'New test cases'
**
** The three commands above will create the "new.db" file and initialize all
** tables. Then do "./fuzzcheck new.db" to run the tests.
**
** DEBUGGING HINTS:
**
** If fuzzcheck does crash, it can be run in the debugger and the content
** of the global variable g.zTextName[] will identify the specific XSQL and
** DB values that were running when the crash occurred.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#include "sqlite3.h"
#define ISSPACE(X) isspace((unsigned char)(X))
#define ISDIGIT(X) isdigit((unsigned char)(X))
#ifdef __unix__
# include <signal.h>
# include <unistd.h>
#endif
#ifdef SQLITE_OSS_FUZZ
# include <stddef.h>
# if !defined(_MSC_VER)
# include <stdint.h>
# endif
#endif
#if defined(_MSC_VER)
typedef unsigned char uint8_t;
#endif
/*
** Files in the virtual file system.
*/
typedef struct VFile VFile;
struct VFile {
char *zFilename; /* Filename. NULL for delete-on-close. From malloc() */
int sz; /* Size of the file in bytes */
int nRef; /* Number of references to this file */
unsigned char *a; /* Content of the file. From malloc() */
};
typedef struct VHandle VHandle;
struct VHandle {
sqlite3_file base; /* Base class. Must be first */
VFile *pVFile; /* The underlying file */
};
/*
** The value of a database file template, or of an SQL script
*/
typedef struct Blob Blob;
struct Blob {
Blob *pNext; /* Next in a list */
int id; /* Id of this Blob */
int seq; /* Sequence number */
int sz; /* Size of this Blob in bytes */
unsigned char a[1]; /* Blob content. Extra space allocated as needed. */
};
/*
** Maximum number of files in the in-memory virtual filesystem.
*/
#define MX_FILE 10
/*
** Maximum allowed file size
*/
#define MX_FILE_SZ 10000000
/*
** All global variables are gathered into the "g" singleton.
*/
static struct GlobalVars {
const char *zArgv0; /* Name of program */
VFile aFile[MX_FILE]; /* The virtual filesystem */
int nDb; /* Number of template databases */
Blob *pFirstDb; /* Content of first template database */
int nSql; /* Number of SQL scripts */
Blob *pFirstSql; /* First SQL script */
unsigned int uRandom; /* Seed for the SQLite PRNG */
char zTestName[100]; /* Name of current test */
} g;
/*
** Print an error message and quit.
*/
static void fatalError(const char *zFormat, ...){
va_list ap;
if( g.zTestName[0] ){
fprintf(stderr, "%s (%s): ", g.zArgv0, g.zTestName);
}else{
fprintf(stderr, "%s: ", g.zArgv0);
}
va_start(ap, zFormat);
vfprintf(stderr, zFormat, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
/*
** Timeout handler
*/
#ifdef __unix__
static void timeoutHandler(int NotUsed){
(void)NotUsed;
fatalError("timeout\n");
}
#endif
/*
** Set the an alarm to go off after N seconds. Disable the alarm
** if N==0
*/
static void setAlarm(int N){
#ifdef __unix__
alarm(N);
#else
(void)N;
#endif
}
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
/*
** This an SQL progress handler. After an SQL statement has run for
** many steps, we want to interrupt it. This guards against infinite
** loops from recursive common table expressions.
**
** *pVdbeLimitFlag is true if the --limit-vdbe command-line option is used.
** In that case, hitting the progress handler is a fatal error.
*/
static int progressHandler(void *pVdbeLimitFlag){
if( *(int*)pVdbeLimitFlag ) fatalError("too many VDBE cycles");
return 1;
}
#endif
/*
** Reallocate memory. Show and error and quit if unable.
*/
static void *safe_realloc(void *pOld, int szNew){
void *pNew = realloc(pOld, szNew<=0 ? 1 : szNew);
if( pNew==0 ) fatalError("unable to realloc for %d bytes", szNew);
return pNew;
}
/*
** Initialize the virtual file system.
*/
static void formatVfs(void){
int i;
for(i=0; i<MX_FILE; i++){
g.aFile[i].sz = -1;
g.aFile[i].zFilename = 0;
g.aFile[i].a = 0;
g.aFile[i].nRef = 0;
}
}
/*
** Erase all information in the virtual file system.
*/
static void reformatVfs(void){
int i;
for(i=0; i<MX_FILE; i++){
if( g.aFile[i].sz<0 ) continue;
if( g.aFile[i].zFilename ){
free(g.aFile[i].zFilename);
g.aFile[i].zFilename = 0;
}
if( g.aFile[i].nRef>0 ){
fatalError("file %d still open. nRef=%d", i, g.aFile[i].nRef);
}
g.aFile[i].sz = -1;
free(g.aFile[i].a);
g.aFile[i].a = 0;
g.aFile[i].nRef = 0;
}
}
/*
** Find a VFile by name
*/
static VFile *findVFile(const char *zName){
int i;
if( zName==0 ) return 0;
for(i=0; i<MX_FILE; i++){
if( g.aFile[i].zFilename==0 ) continue;
if( strcmp(g.aFile[i].zFilename, zName)==0 ) return &g.aFile[i];
}
return 0;
}
/*
** Find a VFile by name. Create it if it does not already exist and
** initialize it to the size and content given.
**
** Return NULL only if the filesystem is full.
*/
static VFile *createVFile(const char *zName, int sz, unsigned char *pData){
VFile *pNew = findVFile(zName);
int i;
if( pNew ) return pNew;
for(i=0; i<MX_FILE && g.aFile[i].sz>=0; i++){}
if( i>=MX_FILE ) return 0;
pNew = &g.aFile[i];
if( zName ){
int nName = (int)strlen(zName)+1;
pNew->zFilename = safe_realloc(0, nName);
memcpy(pNew->zFilename, zName, nName);
}else{
pNew->zFilename = 0;
}
pNew->nRef = 0;
pNew->sz = sz;
pNew->a = safe_realloc(0, sz);
if( sz>0 ) memcpy(pNew->a, pData, sz);
return pNew;
}
/*
** Implementation of the "readfile(X)" SQL function. The entire content
** of the file named X is read and returned as a BLOB. NULL is returned
** if the file does not exist or is unreadable.
*/
static void readfileFunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
const char *zName;
FILE *in;
long nIn;
void *pBuf;
zName = (const char*)sqlite3_value_text(argv[0]);
if( zName==0 ) return;
in = fopen(zName, "rb");
if( in==0 ) return;
fseek(in, 0, SEEK_END);
nIn = ftell(in);
rewind(in);
pBuf = sqlite3_malloc64( nIn );
if( pBuf && 1==fread(pBuf, nIn, 1, in) ){
sqlite3_result_blob(context, pBuf, nIn, sqlite3_free);
}else{
sqlite3_free(pBuf);
}
fclose(in);
}
/*
** Implementation of the "writefile(X,Y)" SQL function. The argument Y
** is written into file X. The number of bytes written is returned. Or
** NULL is returned if something goes wrong, such as being unable to open
** file X for writing.
*/
static void writefileFunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
FILE *out;
const char *z;
sqlite3_int64 rc;
const char *zFile;
(void)argc;
zFile = (const char*)sqlite3_value_text(argv[0]);
if( zFile==0 ) return;
out = fopen(zFile, "wb");
if( out==0 ) return;
z = (const char*)sqlite3_value_blob(argv[1]);
if( z==0 ){
rc = 0;
}else{
rc = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
}
fclose(out);
sqlite3_result_int64(context, rc);
}
/*
** Load a list of Blob objects from the database
*/
static void blobListLoadFromDb(
sqlite3 *db, /* Read from this database */
const char *zSql, /* Query used to extract the blobs */
int onlyId, /* Only load where id is this value */
int *pN, /* OUT: Write number of blobs loaded here */
Blob **ppList /* OUT: Write the head of the blob list here */
){
Blob head;
Blob *p;
sqlite3_stmt *pStmt;
int n = 0;
int rc;
char *z2;
if( onlyId>0 ){
z2 = sqlite3_mprintf("%s WHERE rowid=%d", zSql, onlyId);
}else{
z2 = sqlite3_mprintf("%s", zSql);
}
rc = sqlite3_prepare_v2(db, z2, -1, &pStmt, 0);
sqlite3_free(z2);
if( rc ) fatalError("%s", sqlite3_errmsg(db));
head.pNext = 0;
p = &head;
while( SQLITE_ROW==sqlite3_step(pStmt) ){
int sz = sqlite3_column_bytes(pStmt, 1);
Blob *pNew = safe_realloc(0, sizeof(*pNew)+sz );
pNew->id = sqlite3_column_int(pStmt, 0);
pNew->sz = sz;
pNew->seq = n++;
pNew->pNext = 0;
memcpy(pNew->a, sqlite3_column_blob(pStmt,1), sz);
pNew->a[sz] = 0;
p->pNext = pNew;
p = pNew;
}
sqlite3_finalize(pStmt);
*pN = n;
*ppList = head.pNext;
}
/*
** Free a list of Blob objects
*/
static void blobListFree(Blob *p){
Blob *pNext;
while( p ){
pNext = p->pNext;
free(p);
p = pNext;
}
}
/* Return the current wall-clock time */
static sqlite3_int64 timeOfDay(void){
static sqlite3_vfs *clockVfs = 0;
sqlite3_int64 t;
if( clockVfs==0 ){
clockVfs = sqlite3_vfs_find(0);
if( clockVfs==0 ) return 0;
}
if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){
clockVfs->xCurrentTimeInt64(clockVfs, &t);
}else{
double r;
clockVfs->xCurrentTime(clockVfs, &r);
t = (sqlite3_int64)(r*86400000.0);
}
return t;
}
/* Methods for the VHandle object
*/
static int inmemClose(sqlite3_file *pFile){
VHandle *p = (VHandle*)pFile;
VFile *pVFile = p->pVFile;
pVFile->nRef--;
if( pVFile->nRef==0 && pVFile->zFilename==0 ){
pVFile->sz = -1;
free(pVFile->a);
pVFile->a = 0;
}
return SQLITE_OK;
}
static int inmemRead(
sqlite3_file *pFile, /* Read from this open file */
void *pData, /* Store content in this buffer */
int iAmt, /* Bytes of content */
sqlite3_int64 iOfst /* Start reading here */
){
VHandle *pHandle = (VHandle*)pFile;
VFile *pVFile = pHandle->pVFile;
if( iOfst<0 || iOfst>=pVFile->sz ){
memset(pData, 0, iAmt);
return SQLITE_IOERR_SHORT_READ;
}
if( iOfst+iAmt>pVFile->sz ){
memset(pData, 0, iAmt);
iAmt = (int)(pVFile->sz - iOfst);
memcpy(pData, pVFile->a + iOfst, iAmt);
return SQLITE_IOERR_SHORT_READ;
}
memcpy(pData, pVFile->a + iOfst, iAmt);
return SQLITE_OK;
}
static int inmemWrite(
sqlite3_file *pFile, /* Write to this file */
const void *pData, /* Content to write */
int iAmt, /* bytes to write */
sqlite3_int64 iOfst /* Start writing here */
){
VHandle *pHandle = (VHandle*)pFile;
VFile *pVFile = pHandle->pVFile;
if( iOfst+iAmt > pVFile->sz ){
if( iOfst+iAmt >= MX_FILE_SZ ){
return SQLITE_FULL;
}
pVFile->a = safe_realloc(pVFile->a, (int)(iOfst+iAmt));
if( iOfst > pVFile->sz ){
memset(pVFile->a + pVFile->sz, 0, (int)(iOfst - pVFile->sz));
}
pVFile->sz = (int)(iOfst + iAmt);
}
memcpy(pVFile->a + iOfst, pData, iAmt);
return SQLITE_OK;
}
static int inmemTruncate(sqlite3_file *pFile, sqlite3_int64 iSize){
VHandle *pHandle = (VHandle*)pFile;
VFile *pVFile = pHandle->pVFile;
if( pVFile->sz>iSize && iSize>=0 ) pVFile->sz = (int)iSize;
return SQLITE_OK;
}
static int inmemSync(sqlite3_file *pFile, int flags){
return SQLITE_OK;
}
static int inmemFileSize(sqlite3_file *pFile, sqlite3_int64 *pSize){
*pSize = ((VHandle*)pFile)->pVFile->sz;
return SQLITE_OK;
}
static int inmemLock(sqlite3_file *pFile, int type){
return SQLITE_OK;
}
static int inmemUnlock(sqlite3_file *pFile, int type){
return SQLITE_OK;
}
static int inmemCheckReservedLock(sqlite3_file *pFile, int *pOut){
*pOut = 0;
return SQLITE_OK;
}
static int inmemFileControl(sqlite3_file *pFile, int op, void *pArg){
return SQLITE_NOTFOUND;
}
static int inmemSectorSize(sqlite3_file *pFile){
return 512;
}
static int inmemDeviceCharacteristics(sqlite3_file *pFile){
return
SQLITE_IOCAP_SAFE_APPEND |
SQLITE_IOCAP_UNDELETABLE_WHEN_OPEN |
SQLITE_IOCAP_POWERSAFE_OVERWRITE;
}
/* Method table for VHandle
*/
static sqlite3_io_methods VHandleMethods = {
/* iVersion */ 1,
/* xClose */ inmemClose,
/* xRead */ inmemRead,
/* xWrite */ inmemWrite,
/* xTruncate */ inmemTruncate,
/* xSync */ inmemSync,
/* xFileSize */ inmemFileSize,
/* xLock */ inmemLock,
/* xUnlock */ inmemUnlock,
/* xCheck... */ inmemCheckReservedLock,
/* xFileCtrl */ inmemFileControl,
/* xSectorSz */ inmemSectorSize,
/* xDevchar */ inmemDeviceCharacteristics,
/* xShmMap */ 0,
/* xShmLock */ 0,
/* xShmBarrier */ 0,
/* xShmUnmap */ 0,
/* xFetch */ 0,
/* xUnfetch */ 0
};
/*
** Open a new file in the inmem VFS. All files are anonymous and are
** delete-on-close.
*/
static int inmemOpen(
sqlite3_vfs *pVfs,
const char *zFilename,
sqlite3_file *pFile,
int openFlags,
int *pOutFlags
){
VFile *pVFile = createVFile(zFilename, 0, (unsigned char*)"");
VHandle *pHandle = (VHandle*)pFile;
if( pVFile==0 ){
return SQLITE_FULL;
}
pHandle->pVFile = pVFile;
pVFile->nRef++;
pFile->pMethods = &VHandleMethods;
if( pOutFlags ) *pOutFlags = openFlags;
return SQLITE_OK;
}
/*
** Delete a file by name
*/
static int inmemDelete(
sqlite3_vfs *pVfs,
const char *zFilename,
int syncdir
){
VFile *pVFile = findVFile(zFilename);
if( pVFile==0 ) return SQLITE_OK;
if( pVFile->nRef==0 ){
free(pVFile->zFilename);
pVFile->zFilename = 0;
pVFile->sz = -1;
free(pVFile->a);
pVFile->a = 0;
return SQLITE_OK;
}
return SQLITE_IOERR_DELETE;
}
/* Check for the existance of a file
*/
static int inmemAccess(
sqlite3_vfs *pVfs,
const char *zFilename,
int flags,
int *pResOut
){
VFile *pVFile = findVFile(zFilename);
*pResOut = pVFile!=0;
return SQLITE_OK;
}
/* Get the canonical pathname for a file
*/
static int inmemFullPathname(
sqlite3_vfs *pVfs,
const char *zFilename,
int nOut,
char *zOut
){
sqlite3_snprintf(nOut, zOut, "%s", zFilename);
return SQLITE_OK;
}
/* Always use the same random see, for repeatability.
*/
static int inmemRandomness(sqlite3_vfs *NotUsed, int nBuf, char *zBuf){
memset(zBuf, 0, nBuf);
memcpy(zBuf, &g.uRandom, nBuf<sizeof(g.uRandom) ? nBuf : sizeof(g.uRandom));
return nBuf;
}
/*
** Register the VFS that reads from the g.aFile[] set of files.
*/
static void inmemVfsRegister(int makeDefault){
static sqlite3_vfs inmemVfs;
sqlite3_vfs *pDefault = sqlite3_vfs_find(0);
inmemVfs.iVersion = 3;
inmemVfs.szOsFile = sizeof(VHandle);
inmemVfs.mxPathname = 200;
inmemVfs.zName = "inmem";
inmemVfs.xOpen = inmemOpen;
inmemVfs.xDelete = inmemDelete;
inmemVfs.xAccess = inmemAccess;
inmemVfs.xFullPathname = inmemFullPathname;
inmemVfs.xRandomness = inmemRandomness;
inmemVfs.xSleep = pDefault->xSleep;
inmemVfs.xCurrentTimeInt64 = pDefault->xCurrentTimeInt64;
sqlite3_vfs_register(&inmemVfs, makeDefault);
};
/*
** Allowed values for the runFlags parameter to runSql()
*/
#define SQL_TRACE 0x0001 /* Print each SQL statement as it is prepared */
#define SQL_OUTPUT 0x0002 /* Show the SQL output */
/*
** Run multiple commands of SQL. Similar to sqlite3_exec(), but does not
** stop if an error is encountered.
*/
static void runSql(sqlite3 *db, const char *zSql, unsigned runFlags){
const char *zMore;
sqlite3_stmt *pStmt;
while( zSql && zSql[0] ){
zMore = 0;
pStmt = 0;
sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zMore);
if( zMore==zSql ) break;
if( runFlags & SQL_TRACE ){
const char *z = zSql;
int n;
while( z<zMore && ISSPACE(z[0]) ) z++;
n = (int)(zMore - z);
while( n>0 && ISSPACE(z[n-1]) ) n--;
if( n==0 ) break;
if( pStmt==0 ){
printf("TRACE: %.*s (error: %s)\n", n, z, sqlite3_errmsg(db));
}else{
printf("TRACE: %.*s\n", n, z);
}
}
zSql = zMore;
if( pStmt ){
if( (runFlags & SQL_OUTPUT)==0 ){
while( SQLITE_ROW==sqlite3_step(pStmt) ){}
}else{
int nCol = -1;
while( SQLITE_ROW==sqlite3_step(pStmt) ){
int i;
if( nCol<0 ){
nCol = sqlite3_column_count(pStmt);
}else if( nCol>0 ){
printf("--------------------------------------------\n");
}
for(i=0; i<nCol; i++){
int eType = sqlite3_column_type(pStmt,i);
printf("%s = ", sqlite3_column_name(pStmt,i));
switch( eType ){
case SQLITE_NULL: {
printf("NULL\n");
break;
}
case SQLITE_INTEGER: {
printf("INT %s\n", sqlite3_column_text(pStmt,i));
break;
}
case SQLITE_FLOAT: {
printf("FLOAT %s\n", sqlite3_column_text(pStmt,i));
break;
}
case SQLITE_TEXT: {
printf("TEXT [%s]\n", sqlite3_column_text(pStmt,i));
break;
}
case SQLITE_BLOB: {
printf("BLOB (%d bytes)\n", sqlite3_column_bytes(pStmt,i));
break;
}
}
}
}
}
sqlite3_finalize(pStmt);
}
}
}
/*
** Rebuild the database file.
**
** (1) Remove duplicate entries
** (2) Put all entries in order
** (3) Vacuum
*/
static void rebuild_database(sqlite3 *db){
int rc;
rc = sqlite3_exec(db,
"BEGIN;\n"
"CREATE TEMP TABLE dbx AS SELECT DISTINCT dbcontent FROM db;\n"
"DELETE FROM db;\n"
"INSERT INTO db(dbid, dbcontent) "
" SELECT NULL, dbcontent FROM dbx ORDER BY 2;\n"
"DROP TABLE dbx;\n"
"CREATE TEMP TABLE sx AS SELECT DISTINCT sqltext FROM xsql;\n"
"DELETE FROM xsql;\n"
"INSERT INTO xsql(sqlid,sqltext) "
" SELECT NULL, sqltext FROM sx ORDER BY 2;\n"
"DROP TABLE sx;\n"
"COMMIT;\n"
"PRAGMA page_size=1024;\n"
"VACUUM;\n", 0, 0, 0);
if( rc ) fatalError("cannot rebuild: %s", sqlite3_errmsg(db));
}
/*
** Return the value of a hexadecimal digit. Return -1 if the input
** is not a hex digit.
*/
static int hexDigitValue(char c){
if( c>='0' && c<='9' ) return c - '0';
if( c>='a' && c<='f' ) return c - 'a' + 10;
if( c>='A' && c<='F' ) return c - 'A' + 10;
return -1;
}
/*
** Interpret zArg as an integer value, possibly with suffixes.
*/
static int integerValue(const char *zArg){
sqlite3_int64 v = 0;
static const struct { char *zSuffix; int iMult; } aMult[] = {
{ "KiB", 1024 },
{ "MiB", 1024*1024 },
{ "GiB", 1024*1024*1024 },
{ "KB", 1000 },
{ "MB", 1000000 },
{ "GB", 1000000000 },
{ "K", 1000 },
{ "M", 1000000 },
{ "G", 1000000000 },
};
int i;
int isNeg = 0;
if( zArg[0]=='-' ){
isNeg = 1;
zArg++;
}else if( zArg[0]=='+' ){
zArg++;
}
if( zArg[0]=='0' && zArg[1]=='x' ){
int x;
zArg += 2;
while( (x = hexDigitValue(zArg[0]))>=0 ){
v = (v<<4) + x;
zArg++;
}
}else{
while( ISDIGIT(zArg[0]) ){
v = v*10 + zArg[0] - '0';
zArg++;
}
}
for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
v *= aMult[i].iMult;
break;
}
}
if( v>0x7fffffff ) fatalError("parameter too large - max 2147483648");
return (int)(isNeg? -v : v);
}
/*
** Print sketchy documentation for this utility program
*/
static void showHelp(void){
printf("Usage: %s [options] SOURCE-DB ?ARGS...?\n", g.zArgv0);
printf(
"Read databases and SQL scripts from SOURCE-DB and execute each script against\n"
"each database, checking for crashes and memory leaks.\n"
"Options:\n"
" --cell-size-check Set the PRAGMA cell_size_check=ON\n"
" --dbid N Use only the database where dbid=N\n"
" --export-db DIR Write databases to files(s) in DIR. Works with --dbid\n"
" --export-sql DIR Write SQL to file(s) in DIR. Also works with --sqlid\n"
" --help Show this help text\n"
" --info Show information about SOURCE-DB w/o running tests\n"
" --limit-mem N Limit memory used by test SQLite instance to N bytes\n"
" --limit-vdbe Panic if any test runs for more than 100,000 cycles\n"
" --load-sql ARGS... Load SQL scripts fron files into SOURCE-DB\n"
" --load-db ARGS... Load template databases from files into SOURCE_DB\n"
" -m TEXT Add a description to the database\n"
" --native-vfs Use the native VFS for initially empty database files\n"
" --native-malloc Turn off MEMSYS3/5 and Lookaside\n"
" --oss-fuzz Enable OSS-FUZZ testing\n"
" --prng-seed N Seed value for the PRGN inside of SQLite\n"
" -q|--quiet Reduced output\n"
" --rebuild Rebuild and vacuum the database file\n"
" --result-trace Show the results of each SQL command\n"
" --sqlid N Use only SQL where sqlid=N\n"
" --timeout N Abort if any single test needs more than N seconds\n"
" -v|--verbose Increased output. Repeat for more output.\n"
);
}
int main(int argc, char **argv){
sqlite3_int64 iBegin; /* Start time of this program */
int quietFlag = 0; /* True if --quiet or -q */
int verboseFlag = 0; /* True if --verbose or -v */
char *zInsSql = 0; /* SQL statement for --load-db or --load-sql */
int iFirstInsArg = 0; /* First argv[] for --load-db or --load-sql */
sqlite3 *db = 0; /* The open database connection */
sqlite3_stmt *pStmt; /* A prepared statement */
int rc; /* Result code from SQLite interface calls */
Blob *pSql; /* For looping over SQL scripts */
Blob *pDb; /* For looping over template databases */
int i; /* Loop index for the argv[] loop */
int onlySqlid = -1; /* --sqlid */
int onlyDbid = -1; /* --dbid */
int nativeFlag = 0; /* --native-vfs */
int rebuildFlag = 0; /* --rebuild */
int vdbeLimitFlag = 0; /* --limit-vdbe */
int infoFlag = 0; /* --info */
int timeoutTest = 0; /* undocumented --timeout-test flag */
int runFlags = 0; /* Flags sent to runSql() */
char *zMsg = 0; /* Add this message */
int nSrcDb = 0; /* Number of source databases */
char **azSrcDb = 0; /* Array of source database names */
int iSrcDb; /* Loop over all source databases */
int nTest = 0; /* Total number of tests performed */
char *zDbName = ""; /* Appreviated name of a source database */
const char *zFailCode = 0; /* Value of the TEST_FAILURE env variable */
int cellSzCkFlag = 0; /* --cell-size-check */
int sqlFuzz = 0; /* True for SQL fuzz. False for DB fuzz */
int iTimeout = 120; /* Default 120-second timeout */
int nMem = 0; /* Memory limit */
int nMemThisDb = 0; /* Memory limit set by the CONFIG table */
char *zExpDb = 0; /* Write Databases to files in this directory */
char *zExpSql = 0; /* Write SQL to files in this directory */
void *pHeap = 0; /* Heap for use by SQLite */
int ossFuzz = 0; /* enable OSS-FUZZ testing */
int ossFuzzThisDb = 0; /* ossFuzz value for this particular database */
int nativeMalloc = 0; /* Turn off MEMSYS3/5 and lookaside if true */
sqlite3_vfs *pDfltVfs; /* The default VFS */
int openFlags4Data; /* Flags for sqlite3_open_v2() */
sqlite3_initialize();
iBegin = timeOfDay();
#ifdef __unix__
signal(SIGALRM, timeoutHandler);
#endif
g.zArgv0 = argv[0];
openFlags4Data = SQLITE_OPEN_READONLY;
zFailCode = getenv("TEST_FAILURE");
pDfltVfs = sqlite3_vfs_find(0);
inmemVfsRegister(1);
for(i=1; i<argc; i++){
const char *z = argv[i];
if( z[0]=='-' ){
z++;
if( z[0]=='-' ) z++;
if( strcmp(z,"cell-size-check")==0 ){
cellSzCkFlag = 1;
}else
if( strcmp(z,"dbid")==0 ){
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
onlyDbid = integerValue(argv[++i]);
}else
if( strcmp(z,"export-db")==0 ){
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
zExpDb = argv[++i];
}else
if( strcmp(z,"export-sql")==0 ){
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
zExpSql = argv[++i];
}else
if( strcmp(z,"help")==0 ){
showHelp();
return 0;
}else
if( strcmp(z,"info")==0 ){
infoFlag = 1;
}else
if( strcmp(z,"limit-mem")==0 ){
#if !defined(SQLITE_ENABLE_MEMSYS3) && !defined(SQLITE_ENABLE_MEMSYS5)
fatalError("the %s option requires -DSQLITE_ENABLE_MEMSYS5 or _MEMSYS3",
argv[i]);
#else
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
nMem = integerValue(argv[++i]);
#endif
}else
if( strcmp(z,"limit-vdbe")==0 ){
vdbeLimitFlag = 1;
}else
if( strcmp(z,"load-sql")==0 ){
zInsSql = "INSERT INTO xsql(sqltext)VALUES(CAST(readfile(?1) AS text))";
iFirstInsArg = i+1;
openFlags4Data = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
break;
}else
if( strcmp(z,"load-db")==0 ){
zInsSql = "INSERT INTO db(dbcontent) VALUES(readfile(?1))";
iFirstInsArg = i+1;
openFlags4Data = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
break;
}else
if( strcmp(z,"m")==0 ){
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
zMsg = argv[++i];
openFlags4Data = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
}else
if( strcmp(z,"native-malloc")==0 ){
nativeMalloc = 1;
}else
if( strcmp(z,"native-vfs")==0 ){
nativeFlag = 1;
}else
if( strcmp(z,"oss-fuzz")==0 ){
ossFuzz = 1;
}else
if( strcmp(z,"prng-seed")==0 ){
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
g.uRandom = atoi(argv[++i]);
}else
if( strcmp(z,"quiet")==0 || strcmp(z,"q")==0 ){
quietFlag = 1;
verboseFlag = 0;
}else
if( strcmp(z,"rebuild")==0 ){
rebuildFlag = 1;
openFlags4Data = SQLITE_OPEN_READWRITE;
}else
if( strcmp(z,"result-trace")==0 ){
runFlags |= SQL_OUTPUT;
}else
if( strcmp(z,"sqlid")==0 ){
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
onlySqlid = integerValue(argv[++i]);
}else
if( strcmp(z,"timeout")==0 ){
if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
iTimeout = integerValue(argv[++i]);
}else
if( strcmp(z,"timeout-test")==0 ){
timeoutTest = 1;
#ifndef __unix__
fatalError("timeout is not available on non-unix systems");
#endif
}else
if( strcmp(z,"verbose")==0 || strcmp(z,"v")==0 ){
quietFlag = 0;
verboseFlag++;
if( verboseFlag>1 ) runFlags |= SQL_TRACE;
}else
{
fatalError("unknown option: %s", argv[i]);
}
}else{
nSrcDb++;
azSrcDb = safe_realloc(azSrcDb, nSrcDb*sizeof(azSrcDb[0]));
azSrcDb[nSrcDb-1] = argv[i];
}
}
if( nSrcDb==0 ) fatalError("no source database specified");
if( nSrcDb>1 ){
if( zMsg ){
fatalError("cannot change the description of more than one database");
}
if( zInsSql ){
fatalError("cannot import into more than one database");
}
}
/* Process each source database separately */
for(iSrcDb=0; iSrcDb<nSrcDb; iSrcDb++){
rc = sqlite3_open_v2(azSrcDb[iSrcDb], &db,
openFlags4Data, pDfltVfs->zName);
if( rc ){
fatalError("cannot open source database %s - %s",
azSrcDb[iSrcDb], sqlite3_errmsg(db));
}
/* Print the description, if there is one */
if( infoFlag ){
int n;
zDbName = azSrcDb[iSrcDb];
i = (int)strlen(zDbName) - 1;
while( i>0 && zDbName[i-1]!='/' && zDbName[i-1]!='\\' ){ i--; }
zDbName += i;
sqlite3_prepare_v2(db, "SELECT msg FROM readme", -1, &pStmt, 0);
if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
printf("%s: %s", zDbName, sqlite3_column_text(pStmt,0));
}else{
printf("%s: (empty \"readme\")", zDbName);
}
sqlite3_finalize(pStmt);
sqlite3_prepare_v2(db, "SELECT count(*) FROM db", -1, &pStmt, 0);
if( pStmt
&& sqlite3_step(pStmt)==SQLITE_ROW
&& (n = sqlite3_column_int(pStmt,0))>0
){
printf(" - %d DBs", n);
}
sqlite3_finalize(pStmt);
sqlite3_prepare_v2(db, "SELECT count(*) FROM xsql", -1, &pStmt, 0);
if( pStmt
&& sqlite3_step(pStmt)==SQLITE_ROW
&& (n = sqlite3_column_int(pStmt,0))>0
){
printf(" - %d scripts", n);
}
sqlite3_finalize(pStmt);
printf("\n");
sqlite3_close(db);
continue;
}
rc = sqlite3_exec(db,
"CREATE TABLE IF NOT EXISTS db(\n"
" dbid INTEGER PRIMARY KEY, -- database id\n"
" dbcontent BLOB -- database disk file image\n"
");\n"
"CREATE TABLE IF NOT EXISTS xsql(\n"
" sqlid INTEGER PRIMARY KEY, -- SQL script id\n"
" sqltext TEXT -- Text of SQL statements to run\n"
");"
"CREATE TABLE IF NOT EXISTS readme(\n"
" msg TEXT -- Human-readable description of this file\n"
");", 0, 0, 0);
if( rc ) fatalError("cannot create schema: %s", sqlite3_errmsg(db));
if( zMsg ){
char *zSql;
zSql = sqlite3_mprintf(
"DELETE FROM readme; INSERT INTO readme(msg) VALUES(%Q)", zMsg);
rc = sqlite3_exec(db, zSql, 0, 0, 0);
sqlite3_free(zSql);
if( rc ) fatalError("cannot change description: %s", sqlite3_errmsg(db));
}
ossFuzzThisDb = ossFuzz;
/* If the CONFIG(name,value) table exists, read db-specific settings
** from that table */
if( sqlite3_table_column_metadata(db,0,"config",0,0,0,0,0,0)==SQLITE_OK ){
rc = sqlite3_prepare_v2(db, "SELECT name, value FROM config",
-1, &pStmt, 0);
if( rc ) fatalError("cannot prepare query of CONFIG table: %s",
sqlite3_errmsg(db));
while( SQLITE_ROW==sqlite3_step(pStmt) ){
const char *zName = (const char *)sqlite3_column_text(pStmt,0);
if( zName==0 ) continue;
if( strcmp(zName, "oss-fuzz")==0 ){
ossFuzzThisDb = sqlite3_column_int(pStmt,1);
if( verboseFlag ) printf("Config: oss-fuzz=%d\n", ossFuzzThisDb);
}
if( strcmp(zName, "limit-mem")==0 && !nativeMalloc ){
#if !defined(SQLITE_ENABLE_MEMSYS3) && !defined(SQLITE_ENABLE_MEMSYS5)
fatalError("the limit-mem option requires -DSQLITE_ENABLE_MEMSYS5"
" or _MEMSYS3");
#else
nMemThisDb = sqlite3_column_int(pStmt,1);
if( verboseFlag ) printf("Config: limit-mem=%d\n", nMemThisDb);
#endif
}
}
sqlite3_finalize(pStmt);
}
if( zInsSql ){
sqlite3_create_function(db, "readfile", 1, SQLITE_UTF8, 0,
readfileFunc, 0, 0);
rc = sqlite3_prepare_v2(db, zInsSql, -1, &pStmt, 0);
if( rc ) fatalError("cannot prepare statement [%s]: %s",
zInsSql, sqlite3_errmsg(db));
rc = sqlite3_exec(db, "BEGIN", 0, 0, 0);
if( rc ) fatalError("cannot start a transaction");
for(i=iFirstInsArg; i<argc; i++){
sqlite3_bind_text(pStmt, 1, argv[i], -1, SQLITE_STATIC);
sqlite3_step(pStmt);
rc = sqlite3_reset(pStmt);
if( rc ) fatalError("insert failed for %s", argv[i]);
}
sqlite3_finalize(pStmt);
rc = sqlite3_exec(db, "COMMIT", 0, 0, 0);
if( rc ) fatalError("cannot commit the transaction: %s",
sqlite3_errmsg(db));
rebuild_database(db);
sqlite3_close(db);
return 0;
}
rc = sqlite3_exec(db, "PRAGMA query_only=1;", 0, 0, 0);
if( rc ) fatalError("cannot set database to query-only");
if( zExpDb!=0 || zExpSql!=0 ){
sqlite3_create_function(db, "writefile", 2, SQLITE_UTF8, 0,
writefileFunc, 0, 0);
if( zExpDb!=0 ){
const char *zExDb =
"SELECT writefile(printf('%s/db%06d.db',?1,dbid),dbcontent),"
" dbid, printf('%s/db%06d.db',?1,dbid), length(dbcontent)"
" FROM db WHERE ?2<0 OR dbid=?2;";
rc = sqlite3_prepare_v2(db, zExDb, -1, &pStmt, 0);
if( rc ) fatalError("cannot prepare statement [%s]: %s",
zExDb, sqlite3_errmsg(db));
sqlite3_bind_text64(pStmt, 1, zExpDb, strlen(zExpDb),
SQLITE_STATIC, SQLITE_UTF8);
sqlite3_bind_int(pStmt, 2, onlyDbid);
while( sqlite3_step(pStmt)==SQLITE_ROW ){
printf("write db-%d (%d bytes) into %s\n",
sqlite3_column_int(pStmt,1),
sqlite3_column_int(pStmt,3),
sqlite3_column_text(pStmt,2));
}
sqlite3_finalize(pStmt);
}
if( zExpSql!=0 ){
const char *zExSql =
"SELECT writefile(printf('%s/sql%06d.txt',?1,sqlid),sqltext),"
" sqlid, printf('%s/sql%06d.txt',?1,sqlid), length(sqltext)"
" FROM xsql WHERE ?2<0 OR sqlid=?2;";
rc = sqlite3_prepare_v2(db, zExSql, -1, &pStmt, 0);
if( rc ) fatalError("cannot prepare statement [%s]: %s",
zExSql, sqlite3_errmsg(db));
sqlite3_bind_text64(pStmt, 1, zExpSql, strlen(zExpSql),
SQLITE_STATIC, SQLITE_UTF8);
sqlite3_bind_int(pStmt, 2, onlySqlid);
while( sqlite3_step(pStmt)==SQLITE_ROW ){
printf("write sql-%d (%d bytes) into %s\n",
sqlite3_column_int(pStmt,1),
sqlite3_column_int(pStmt,3),
sqlite3_column_text(pStmt,2));
}
sqlite3_finalize(pStmt);
}
sqlite3_close(db);
return 0;
}
/* Load all SQL script content and all initial database images from the
** source db
*/
blobListLoadFromDb(db, "SELECT sqlid, sqltext FROM xsql", onlySqlid,
&g.nSql, &g.pFirstSql);
if( g.nSql==0 ) fatalError("need at least one SQL script");
blobListLoadFromDb(db, "SELECT dbid, dbcontent FROM db", onlyDbid,
&g.nDb, &g.pFirstDb);
if( g.nDb==0 ){
g.pFirstDb = safe_realloc(0, sizeof(Blob));
memset(g.pFirstDb, 0, sizeof(Blob));
g.pFirstDb->id = 1;
g.pFirstDb->seq = 0;
g.nDb = 1;
sqlFuzz = 1;
}
/* Print the description, if there is one */
if( !quietFlag ){
zDbName = azSrcDb[iSrcDb];
i = (int)strlen(zDbName) - 1;
while( i>0 && zDbName[i-1]!='/' && zDbName[i-1]!='\\' ){ i--; }
zDbName += i;
sqlite3_prepare_v2(db, "SELECT msg FROM readme", -1, &pStmt, 0);
if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
printf("%s: %s\n", zDbName, sqlite3_column_text(pStmt,0));
}
sqlite3_finalize(pStmt);
}
/* Rebuild the database, if requested */
if( rebuildFlag ){
if( !quietFlag ){
printf("%s: rebuilding... ", zDbName);
fflush(stdout);
}
rebuild_database(db);
if( !quietFlag ) printf("done\n");
}
/* Close the source database. Verify that no SQLite memory allocations are
** outstanding.
*/
sqlite3_close(db);
if( sqlite3_memory_used()>0 ){
fatalError("SQLite has memory in use before the start of testing");
}
/* Limit available memory, if requested */
sqlite3_shutdown();
if( nMemThisDb>0 && !nativeMalloc ){
pHeap = realloc(pHeap, nMemThisDb);
if( pHeap==0 ){
fatalError("failed to allocate %d bytes of heap memory", nMem);
}
sqlite3_config(SQLITE_CONFIG_HEAP, pHeap, nMemThisDb, 128);
}
/* Disable lookaside with the --native-malloc option */
if( nativeMalloc ){
sqlite3_config(SQLITE_CONFIG_LOOKASIDE, 0, 0);
}
/* Reset the in-memory virtual filesystem */
formatVfs();
/* Run a test using each SQL script against each database.
*/
if( !verboseFlag && !quietFlag ) printf("%s:", zDbName);
for(pSql=g.pFirstSql; pSql; pSql=pSql->pNext){
for(pDb=g.pFirstDb; pDb; pDb=pDb->pNext){
int openFlags;
const char *zVfs = "inmem";
sqlite3_snprintf(sizeof(g.zTestName), g.zTestName, "sqlid=%d,dbid=%d",
pSql->id, pDb->id);
if( verboseFlag ){
printf("%s\n", g.zTestName);
fflush(stdout);
}else if( !quietFlag ){
static int prevAmt = -1;
int idx = pSql->seq*g.nDb + pDb->id - 1;
int amt = idx*10/(g.nDb*g.nSql);
if( amt!=prevAmt ){
printf(" %d%%", amt*10);
fflush(stdout);
prevAmt = amt;
}
}
createVFile("main.db", pDb->sz, pDb->a);
sqlite3_randomness(0,0);
if( ossFuzzThisDb ){
#ifndef SQLITE_OSS_FUZZ
fatalError("--oss-fuzz not supported: recompile"
" with -DSQLITE_OSS_FUZZ");
#else
extern int LLVMFuzzerTestOneInput(const uint8_t*, size_t);
LLVMFuzzerTestOneInput((const uint8_t*)pSql->a, (size_t)pSql->sz);
#endif
}else{
openFlags = SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE;
if( nativeFlag && pDb->sz==0 ){
openFlags |= SQLITE_OPEN_MEMORY;
zVfs = 0;
}
rc = sqlite3_open_v2("main.db", &db, openFlags, zVfs);
if( rc ) fatalError("cannot open inmem database");
sqlite3_limit(db, SQLITE_LIMIT_LENGTH, 100000000);
sqlite3_limit(db, SQLITE_LIMIT_LIKE_PATTERN_LENGTH, 50);
if( cellSzCkFlag ) runSql(db, "PRAGMA cell_size_check=ON", runFlags);
setAlarm(iTimeout);
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
if( sqlFuzz || vdbeLimitFlag ){
sqlite3_progress_handler(db, 100000, progressHandler,
&vdbeLimitFlag);
}
#endif
do{
runSql(db, (char*)pSql->a, runFlags);
}while( timeoutTest );
setAlarm(0);
sqlite3_exec(db, "PRAGMA temp_store_directory=''", 0, 0, 0);
sqlite3_close(db);
}
if( sqlite3_memory_used()>0 ){
fatalError("memory leak: %lld bytes outstanding",
sqlite3_memory_used());
}
reformatVfs();
nTest++;
g.zTestName[0] = 0;
/* Simulate an error if the TEST_FAILURE environment variable is "5".
** This is used to verify that automated test script really do spot
** errors that occur in this test program.
*/
if( zFailCode ){
if( zFailCode[0]=='5' && zFailCode[1]==0 ){
fatalError("simulated failure");
}else if( zFailCode[0]!=0 ){
/* If TEST_FAILURE is something other than 5, just exit the test
** early */
printf("\nExit early due to TEST_FAILURE being set\n");
iSrcDb = nSrcDb-1;
goto sourcedb_cleanup;
}
}
}
}
if( !quietFlag && !verboseFlag ){
printf(" 100%% - %d tests\n", g.nDb*g.nSql);
}
/* Clean up at the end of processing a single source database
*/
sourcedb_cleanup:
blobListFree(g.pFirstSql);
blobListFree(g.pFirstDb);
reformatVfs();
} /* End loop over all source databases */
if( !quietFlag ){
sqlite3_int64 iElapse = timeOfDay() - iBegin;
printf("fuzzcheck: 0 errors out of %d tests in %d.%03d seconds\n"
"SQLite %s %s\n",
nTest, (int)(iElapse/1000), (int)(iElapse%1000),
sqlite3_libversion(), sqlite3_sourceid());
}
free(azSrcDb);
free(pHeap);
return 0;
}
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