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Overview
| Comment: | Update the zipfile module so that it matches the documentation. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
7e7e472fa91a2bad2e521d4d67f176c8 |
| User & Date: | dan 2018-01-08 19:59:59 |
Context
|
2018-01-09
| ||
| 00:26 | Fix harmless compiler warnings. (check-in: 1adf4e60 user: mistachkin tags: trunk) | |
|
2018-01-08
| ||
| 19:59 | Update the zipfile module so that it matches the documentation. (check-in: 7e7e472f user: dan tags: trunk) | |
| 17:34 | Fix problems in the sqlite3expert.c code revealed by -fsanitize. (check-in: 7a93dd78 user: dan tags: trunk) | |
Changes
Changes to ext/misc/zipfile.c.
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typedef sqlite3_int64 i64;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned long u32;
#define MIN(a,b) ((a)<(b) ? (a) : (b))
#endif
#define ZIPFILE_SCHEMA "CREATE TABLE y(" \
"name, /* Name of file in zip archive */" \
"mode, /* POSIX mode for file */" \
"mtime, /* Last modification time in seconds since epoch */" \
"sz, /* Size of object */" \
"data, /* Data stored in zip file (possibly compressed) */" \
"method, /* Compression method (integer) */" \
"f HIDDEN /* Name of zip file */" \
");"
#define ZIPFILE_F_COLUMN_IDX 6 /* Index of column "f" in the above */
#define ZIPFILE_BUFFER_SIZE (64*1024)
/*
** Magic numbers used to read and write zip files.
**
** ZIPFILE_NEWENTRY_MADEBY:
................................................................................
(res.tm_hour << 11));
pCds->mDate = (u16)(
(res.tm_mday-1) +
((res.tm_mon+1) << 5) +
((res.tm_year-80) << 9));
}
/*
** Return values of columns for the row at which the series_cursor
** is currently pointing.
*/
static int zipfileColumn(
sqlite3_vtab_cursor *cur, /* The cursor */
................................................................................
}
break;
}
case 3: { /* sz */
sqlite3_result_int64(ctx, pCsr->cds.szUncompressed);
break;
}
case 4: { /* data */
int sz = pCsr->cds.szCompressed;
if( sz>0 ){
u8 *aBuf = sqlite3_malloc(sz);
if( aBuf==0 ){
rc = SQLITE_NOMEM;
}else{
FILE *pFile = zipfileGetFd(pCsr);
rc = zipfileReadData(pFile, aBuf, sz, pCsr->iDataOff,
&pCsr->base.pVtab->zErrMsg
);
}
if( rc==SQLITE_OK ){
sqlite3_result_blob(ctx, aBuf, sz, SQLITE_TRANSIENT);
sqlite3_free(aBuf);
}
}
break;
}
case 5: /* method */
sqlite3_result_int(ctx, pCsr->cds.iCompression);
break;
}
return SQLITE_OK;
}
................................................................................
return rc;
}
static int zipfileGetMode(ZipfileTab *pTab, sqlite3_value *pVal, int *pMode){
const char *z = (const char*)sqlite3_value_text(pVal);
int mode = 0;
if( z==0 || (z[0]>=0 && z[0]<=9) ){
mode = sqlite3_value_int(pVal);
}else{
const char zTemplate[11] = "-rwxrwxrwx";
int i;
if( strlen(z)!=10 ) goto parse_error;
switch( z[0] ){
case '-': mode |= S_IFREG; break;
................................................................................
ZipfileEntry *pNew = 0; /* New in-memory CDS entry */
int mode; /* Mode for new entry */
i64 mTime; /* Modification time for new entry */
i64 sz; /* Uncompressed size */
const char *zPath; /* Path for new entry */
int nPath; /* strlen(zPath) */
const u8 *pData; /* Pointer to buffer containing content */
int nData; /* Size of pData buffer in bytes */
int iMethod = 0; /* Compression method for new entry */
u8 *pFree = 0; /* Free this */
ZipfileCDS cds; /* New Central Directory Structure entry */
assert( pTab->zFile );
assert( pTab->pWriteFd );
................................................................................
if( nVal==1 ) return SQLITE_OK;
}
zPath = (const char*)sqlite3_value_text(apVal[2]);
nPath = (int)strlen(zPath);
rc = zipfileGetMode(pTab, apVal[3], &mode);
if( rc!=SQLITE_OK ) return rc;
mTime = sqlite3_value_int64(apVal[4]);
sz = sqlite3_value_int(apVal[5]);
pData = sqlite3_value_blob(apVal[6]);
nData = sqlite3_value_bytes(apVal[6]);
/* If a NULL value is inserted into the 'method' column, do automatic
** compression. */
if( nData>0 && sqlite3_value_type(apVal[7])==SQLITE_NULL ){
pFree = (u8*)sqlite3_malloc(nData);
if( pFree==0 ){
rc = SQLITE_NOMEM;
}else{
int res;
z_stream str;
memset(&str, 0, sizeof(str));
str.next_in = (z_const Bytef*)pData;
str.avail_in = nData;
str.next_out = pFree;
str.avail_out = nData;
deflateInit2(&str, 9, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
res = deflate(&str, Z_FINISH);
if( res==Z_STREAM_END ){
pData = pFree;
nData = str.total_out;
iMethod = 8;
}else if( res!=Z_OK ){
pTab->base.zErrMsg = sqlite3_mprintf("zipfile: deflate() error");
rc = SQLITE_ERROR;
}
deflateEnd(&str);
}
}else{
iMethod = sqlite3_value_int(apVal[7]);
if( iMethod<0 || iMethod>65535 ){
pTab->base.zErrMsg = sqlite3_mprintf(
"zipfile: invalid compression method: %d", iMethod
);
rc = SQLITE_ERROR;
}
}
if( rc==SQLITE_OK ){
/* Create the new CDS record. */
memset(&cds, 0, sizeof(cds));
cds.iVersionMadeBy = ZIPFILE_NEWENTRY_MADEBY;
cds.iVersionExtract = ZIPFILE_NEWENTRY_REQUIRED;
................................................................................
int rc = sqlite3_create_module(db, "zipfile" , &zipfileModule, 0);
return rc;
}
#else /* SQLITE_OMIT_VIRTUALTABLE */
# define zipfileRegister(x) SQLITE_OK
#endif
/*
** zipfile_uncompress(DATA, SZ, METHOD)
*/
static void zipfileUncompressFunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
int iMethod;
iMethod = sqlite3_value_int(argv[2]);
if( iMethod==0 ){
sqlite3_result_value(context, argv[0]);
}else if( iMethod==8 ){
Byte *res;
int sz = sqlite3_value_int(argv[1]);
z_stream str;
memset(&str, 0, sizeof(str));
str.next_in = (Byte*)sqlite3_value_blob(argv[0]);
str.avail_in = sqlite3_value_bytes(argv[0]);
res = str.next_out = (Byte*)sqlite3_malloc(sz);
if( res==0 ){
sqlite3_result_error_nomem(context);
}else{
int err;
str.avail_out = sz;
err = inflateInit2(&str, -15);
if( err!=Z_OK ){
zipfileCtxErrorMsg(context, "inflateInit2() failed (%d)", err);
}else{
err = inflate(&str, Z_NO_FLUSH);
if( err!=Z_STREAM_END ){
zipfileCtxErrorMsg(context, "inflate() failed (%d)", err);
}else{
sqlite3_result_blob(context, res, sz, SQLITE_TRANSIENT);
}
}
sqlite3_free(res);
inflateEnd(&str);
}
}else{
zipfileCtxErrorMsg(context, "unrecognized compression method: %d", iMethod);
}
}
#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_zipfile_init(
sqlite3 *db,
char **pzErrMsg,
const sqlite3_api_routines *pApi
){
int rc = SQLITE_OK;
SQLITE_EXTENSION_INIT2(pApi);
(void)pzErrMsg; /* Unused parameter */
rc = sqlite3_create_function(db, "zipfile_uncompress", 3,
SQLITE_UTF8, 0, zipfileUncompressFunc, 0, 0
);
if( rc!=SQLITE_OK ) return rc;
return zipfileRegister(db);
}
|
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typedef sqlite3_int64 i64;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned long u32;
#define MIN(a,b) ((a)<(b) ? (a) : (b))
#endif
#define ZIPFILE_SCHEMA "CREATE TABLE y(" \
"name, /* 0: Name of file in zip archive */" \
"mode, /* 1: POSIX mode for file */" \
"mtime, /* 2: Last modification time in seconds since epoch */" \
"sz, /* 3: Size of object */" \
"rawdata, /* 4: Raw data */" \
"data, /* 5: Uncompressed data */" \
"method, /* 6: Compression method (integer) */" \
"file HIDDEN /* Name of zip file */" \
");"
#define ZIPFILE_F_COLUMN_IDX 7 /* Index of column "f" in the above */
#define ZIPFILE_BUFFER_SIZE (64*1024)
/*
** Magic numbers used to read and write zip files.
**
** ZIPFILE_NEWENTRY_MADEBY:
................................................................................
(res.tm_hour << 11));
pCds->mDate = (u16)(
(res.tm_mday-1) +
((res.tm_mon+1) << 5) +
((res.tm_year-80) << 9));
}
static void zipfileInflate(
sqlite3_context *pCtx, /* Store error here, if any */
const u8 *aIn, /* Compressed data */
int nIn, /* Size of buffer aIn[] in bytes */
int nOut /* Expected output size */
){
u8 *aRes = sqlite3_malloc(nOut);
if( aRes==0 ){
sqlite3_result_error_nomem(pCtx);
}else{
int err;
z_stream str;
memset(&str, 0, sizeof(str));
str.next_in = (Byte*)aIn;
str.avail_in = nIn;
str.next_out = (Byte*)aRes;
str.avail_out = nOut;
err = inflateInit2(&str, -15);
if( err!=Z_OK ){
zipfileCtxErrorMsg(pCtx, "inflateInit2() failed (%d)", err);
}else{
err = inflate(&str, Z_NO_FLUSH);
if( err!=Z_STREAM_END ){
zipfileCtxErrorMsg(pCtx, "inflate() failed (%d)", err);
}else{
sqlite3_result_blob(pCtx, aRes, nOut, SQLITE_TRANSIENT);
}
}
sqlite3_free(aRes);
inflateEnd(&str);
}
}
static int zipfileDeflate(
ZipfileTab *pTab, /* Set error message here */
const u8 *aIn, int nIn, /* Input */
u8 **ppOut, int *pnOut /* Output */
){
int nAlloc = (int)compressBound(nIn);
u8 *aOut;
int rc;
aOut = (u8*)sqlite3_malloc(nAlloc);
if( aOut==0 ){
rc = SQLITE_NOMEM;
}else{
int res;
z_stream str;
memset(&str, 0, sizeof(str));
str.next_in = (z_const Bytef*)aIn;
str.avail_in = nIn;
str.next_out = aOut;
str.avail_out = nAlloc;
deflateInit2(&str, 9, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
res = deflate(&str, Z_FINISH);
if( res==Z_STREAM_END ){
*ppOut = aOut;
*pnOut = (int)str.total_out;
}else{
sqlite3_free(aOut);
pTab->base.zErrMsg = sqlite3_mprintf("zipfile: deflate() error");
rc = SQLITE_ERROR;
}
deflateEnd(&str);
}
return rc;
}
/*
** Return values of columns for the row at which the series_cursor
** is currently pointing.
*/
static int zipfileColumn(
sqlite3_vtab_cursor *cur, /* The cursor */
................................................................................
}
break;
}
case 3: { /* sz */
sqlite3_result_int64(ctx, pCsr->cds.szUncompressed);
break;
}
case 4: /* rawdata */
case 5: { /* data */
if( i==4 || pCsr->cds.iCompression==0 || pCsr->cds.iCompression==8 ){
int sz = pCsr->cds.szCompressed;
if( sz>0 ){
u8 *aBuf = sqlite3_malloc(sz);
if( aBuf==0 ){
rc = SQLITE_NOMEM;
}else{
FILE *pFile = zipfileGetFd(pCsr);
rc = zipfileReadData(pFile, aBuf, sz, pCsr->iDataOff,
&pCsr->base.pVtab->zErrMsg
);
}
if( rc==SQLITE_OK ){
if( i==5 && pCsr->cds.iCompression ){
zipfileInflate(ctx, aBuf, sz, pCsr->cds.szUncompressed);
}else{
sqlite3_result_blob(ctx, aBuf, sz, SQLITE_TRANSIENT);
}
sqlite3_free(aBuf);
}
}
}
break;
}
case 6: /* method */
sqlite3_result_int(ctx, pCsr->cds.iCompression);
break;
}
return SQLITE_OK;
}
................................................................................
return rc;
}
static int zipfileGetMode(ZipfileTab *pTab, sqlite3_value *pVal, int *pMode){
const char *z = (const char*)sqlite3_value_text(pVal);
int mode = 0;
if( z==0 ){
mode = 33188; /* -rw-r--r-- */
}else if( z[0]>=0 && z[0]<=9 ){
mode = sqlite3_value_int(pVal);
}else{
const char zTemplate[11] = "-rwxrwxrwx";
int i;
if( strlen(z)!=10 ) goto parse_error;
switch( z[0] ){
case '-': mode |= S_IFREG; break;
................................................................................
ZipfileEntry *pNew = 0; /* New in-memory CDS entry */
int mode; /* Mode for new entry */
i64 mTime; /* Modification time for new entry */
i64 sz; /* Uncompressed size */
const char *zPath; /* Path for new entry */
int nPath; /* strlen(zPath) */
const u8 *pData = 0; /* Pointer to buffer containing content */
int nData = 0; /* Size of pData buffer in bytes */
int iMethod = 0; /* Compression method for new entry */
u8 *pFree = 0; /* Free this */
ZipfileCDS cds; /* New Central Directory Structure entry */
assert( pTab->zFile );
assert( pTab->pWriteFd );
................................................................................
if( nVal==1 ) return SQLITE_OK;
}
zPath = (const char*)sqlite3_value_text(apVal[2]);
nPath = (int)strlen(zPath);
rc = zipfileGetMode(pTab, apVal[3], &mode);
if( rc!=SQLITE_OK ) return rc;
if( sqlite3_value_type(apVal[4])==SQLITE_NULL ){
mTime = (sqlite3_int64)time(0);
}else{
mTime = sqlite3_value_int64(apVal[4]);
}
if( sqlite3_value_type(apVal[5])==SQLITE_NULL /* sz */
&& sqlite3_value_type(apVal[6])==SQLITE_NULL /* rawdata */
&& sqlite3_value_type(apVal[7])!=SQLITE_NULL /* data */
){
const u8 *aIn = sqlite3_value_blob(apVal[7]);
int nIn = sqlite3_value_bytes(apVal[7]);
int bAuto = sqlite3_value_type(apVal[8])==SQLITE_NULL;
iMethod = sqlite3_value_int(apVal[8]);
sz = nIn;
if( iMethod!=0 && iMethod!=8 ){
rc = SQLITE_CONSTRAINT;
}else if( bAuto || iMethod ){
rc = zipfileDeflate(pTab, aIn, nIn, &pFree, &nData);
if( rc==SQLITE_OK ){
if( iMethod || nData<nIn ){
iMethod = 8;
pData = pFree;
}else{
pData = aIn;
nData = nIn;
}
}
}
}else
if( sqlite3_value_type(apVal[5])!=SQLITE_NULL /* sz */
&& sqlite3_value_type(apVal[6])!=SQLITE_NULL /* rawdata */
&& sqlite3_value_type(apVal[7])==SQLITE_NULL /* data */
&& sqlite3_value_type(apVal[8])!=SQLITE_NULL /* method */
){
pData = sqlite3_value_blob(apVal[6]);
nData = sqlite3_value_bytes(apVal[6]);
sz = sqlite3_value_int(apVal[5]);
iMethod = sqlite3_value_int(apVal[8]);
if( iMethod<0 || iMethod>65535 ){
pTab->base.zErrMsg = sqlite3_mprintf(
"zipfile: invalid compression method: %d", iMethod
);
rc = SQLITE_ERROR;
}
}else{
rc = SQLITE_CONSTRAINT;
}
if( rc==SQLITE_OK ){
/* Create the new CDS record. */
memset(&cds, 0, sizeof(cds));
cds.iVersionMadeBy = ZIPFILE_NEWENTRY_MADEBY;
cds.iVersionExtract = ZIPFILE_NEWENTRY_REQUIRED;
................................................................................
int rc = sqlite3_create_module(db, "zipfile" , &zipfileModule, 0);
return rc;
}
#else /* SQLITE_OMIT_VIRTUALTABLE */
# define zipfileRegister(x) SQLITE_OK
#endif
#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_zipfile_init(
sqlite3 *db,
char **pzErrMsg,
const sqlite3_api_routines *pApi
){
SQLITE_EXTENSION_INIT2(pApi);
(void)pzErrMsg; /* Unused parameter */
return zipfileRegister(db);
}
|
Changes to src/shell.c.in.
4843 4844 4845 4846 4847 4848 4849 4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 |
"SELECT "
" :1 || name, "
" writefile(?1 || name, %s, mode, mtime) "
"FROM %s WHERE (%s) AND (data IS NULL OR ?2 = 0)";
const char *azExtraArg[] = {
"sqlar_uncompress(data, sz)",
"zipfile_uncompress(data, sz, method)"
};
const char *azSource[] = {
"sqlar", "zipfile(?3)"
};
sqlite3_stmt *pSql = 0;
int rc = SQLITE_OK;
char *zDir = 0;
char *zWhere = 0;
int i;
|
| < < |
4843 4844 4845 4846 4847 4848 4849 4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 |
"SELECT "
" :1 || name, "
" writefile(?1 || name, %s, mode, mtime) "
"FROM %s WHERE (%s) AND (data IS NULL OR ?2 = 0)";
const char *azExtraArg[] = {
"sqlar_uncompress(data, sz)",
"data"
};
const char *azSource[] = {
"sqlar", "zipfile(?3)"
};
sqlite3_stmt *pSql = 0;
int rc = SQLITE_OK;
char *zDir = 0;
char *zWhere = 0;
int i;
|
Changes to test/zipfile.test.
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 |
CREATE VIRTUAL TABLE temp.zz USING zipfile('test.zip');
PRAGMA table_info(zz);
} {
0 name {} 0 {} 0
1 mode {} 0 {} 0
2 mtime {} 0 {} 0
3 sz {} 0 {} 0
4 data {} 0 {} 0
5 method {} 0 {} 0
}
do_execsql_test 1.1.1 {
INSERT INTO zz VALUES('f.txt', '-rw-r--r--', 1000000000, 5, 'abcde', 0);
}
do_execsql_test 1.1.2 {
INSERT INTO zz VALUES('g.txt', '-rw-r--r--', 1000000002, 5, '12345', 0);
}
do_execsql_test 1.2 {
SELECT name, mtime, data FROM zipfile('test.zip')
} {
f.txt 1000000000 abcde
g.txt 1000000002 12345
}
do_execsql_test 1.3 {
INSERT INTO zz VALUES('h.txt',
'-rw-r--r--', 1000000004, 20, 'aaaaaaaaaabbbbbbbbbb', NULL
);
}
do_execsql_test 1.4 {
SELECT name, mtime, zipfile_uncompress(data, sz, method), method
FROM zipfile('test.zip');
} {
f.txt 1000000000 abcde 0
g.txt 1000000002 12345 0
h.txt 1000000004 aaaaaaaaaabbbbbbbbbb 8
}
do_execsql_test 1.5.1 {
BEGIN;
INSERT INTO zz VALUES('i.txt', '-rw-r--r--', 1000000006, 5, 'zxcvb', 0);
SELECT name FROM zz;
COMMIT;
} {f.txt g.txt h.txt i.txt}
do_execsql_test 1.5.2 {
SELECT name FROM zz;
} {f.txt g.txt h.txt i.txt}
|
> | | > | > | | | < | > | |
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 |
CREATE VIRTUAL TABLE temp.zz USING zipfile('test.zip');
PRAGMA table_info(zz);
} {
0 name {} 0 {} 0
1 mode {} 0 {} 0
2 mtime {} 0 {} 0
3 sz {} 0 {} 0
4 rawdata {} 0 {} 0
5 data {} 0 {} 0
6 method {} 0 {} 0
}
do_execsql_test 1.1.1 {
INSERT INTO zz(name, mode, mtime, sz, rawdata, method)
VALUES('f.txt', '-rw-r--r--', 1000000000, 5, 'abcde', 0);
}
do_execsql_test 1.1.2 {
INSERT INTO zz(name, mtime, sz, rawdata, method)
VALUES('g.txt', 1000000002, 5, '12345', 0);
}
do_execsql_test 1.2 {
SELECT name, mtime, data FROM zipfile('test.zip')
} {
f.txt 1000000000 abcde
g.txt 1000000002 12345
}
do_execsql_test 1.3 {
INSERT INTO zz(name, mode, mtime, data) VALUES('h.txt',
'-rw-r--r--', 1000000004, 'aaaaaaaaaabbbbbbbbbb'
);
}
do_execsql_test 1.4 {
SELECT name, mtime, data, method FROM zipfile('test.zip');
} {
f.txt 1000000000 abcde 0
g.txt 1000000002 12345 0
h.txt 1000000004 aaaaaaaaaabbbbbbbbbb 8
}
do_execsql_test 1.5.1 {
BEGIN;
INSERT INTO zz(name, mode, mtime, data, method)
VALUES('i.txt', '-rw-r--r--', 1000000006, 'zxcvb', 0);
SELECT name FROM zz;
COMMIT;
} {f.txt g.txt h.txt i.txt}
do_execsql_test 1.5.2 {
SELECT name FROM zz;
} {f.txt g.txt h.txt i.txt}
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