diff options
Diffstat (limited to 'src/pager.c')
| -rw-r--r-- | src/pager.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/src/pager.c b/src/pager.c index ecec892b4..5d279001e 100644 --- a/src/pager.c +++ b/src/pager.c @@ -1291,7 +1291,7 @@ static void checkPage(PgHdr *pPg){ ** If an error occurs while reading from the journal file, an SQLite ** error code is returned. */ -static int readSuperJournal(sqlite3_file *pJrnl, char *zSuper, u32 nSuper){ +static int readSuperJournal(sqlite3_file *pJrnl, char *zSuper, u64 nSuper){ int rc; /* Return code */ u32 len; /* Length in bytes of super-journal name */ i64 szJ; /* Total size in bytes of journal file pJrnl */ @@ -2527,12 +2527,12 @@ static int pager_delsuper(Pager *pPager, const char *zSuper){ char *zJournal; /* Pointer to one journal within MJ file */ char *zSuperPtr; /* Space to hold super-journal filename */ char *zFree = 0; /* Free this buffer */ - int nSuperPtr; /* Amount of space allocated to zSuperPtr[] */ + i64 nSuperPtr; /* Amount of space allocated to zSuperPtr[] */ /* Allocate space for both the pJournal and pSuper file descriptors. ** If successful, open the super-journal file for reading. */ - pSuper = (sqlite3_file *)sqlite3MallocZero(pVfs->szOsFile * 2); + pSuper = (sqlite3_file *)sqlite3MallocZero(2 * (i64)pVfs->szOsFile); if( !pSuper ){ rc = SQLITE_NOMEM_BKPT; pJournal = 0; @@ -2550,11 +2550,14 @@ static int pager_delsuper(Pager *pPager, const char *zSuper){ */ rc = sqlite3OsFileSize(pSuper, &nSuperJournal); if( rc!=SQLITE_OK ) goto delsuper_out; - nSuperPtr = pVfs->mxPathname+1; + nSuperPtr = 1 + (i64)pVfs->mxPathname; + assert( nSuperJournal>=0 && nSuperPtr>0 ); zFree = sqlite3Malloc(4 + nSuperJournal + nSuperPtr + 2); if( !zFree ){ rc = SQLITE_NOMEM_BKPT; goto delsuper_out; + }else{ + assert( nSuperJournal<=0x7fffffff ); } zFree[0] = zFree[1] = zFree[2] = zFree[3] = 0; zSuperJournal = &zFree[4]; @@ -2815,7 +2818,7 @@ static int pager_playback(Pager *pPager, int isHot){ ** for pageSize. */ zSuper = pPager->pTmpSpace; - rc = readSuperJournal(pPager->jfd, zSuper, pPager->pVfs->mxPathname+1); + rc = readSuperJournal(pPager->jfd, zSuper, 1+(i64)pPager->pVfs->mxPathname); if( rc==SQLITE_OK && zSuper[0] ){ rc = sqlite3OsAccess(pVfs, zSuper, SQLITE_ACCESS_EXISTS, &res); } @@ -2954,7 +2957,7 @@ end_playback: ** which case it requires 4 0x00 bytes in memory immediately before ** the filename. */ zSuper = &pPager->pTmpSpace[4]; - rc = readSuperJournal(pPager->jfd, zSuper, pPager->pVfs->mxPathname+1); + rc = readSuperJournal(pPager->jfd, zSuper, 1+(i64)pPager->pVfs->mxPathname); testcase( rc!=SQLITE_OK ); } if( rc==SQLITE_OK @@ -4724,6 +4727,7 @@ int sqlite3PagerOpen( u32 szPageDflt = SQLITE_DEFAULT_PAGE_SIZE; /* Default page size */ const char *zUri = 0; /* URI args to copy */ int nUriByte = 1; /* Number of bytes of URI args at *zUri */ + /* Figure out how much space is required for each journal file-handle ** (there are two of them, the main journal and the sub-journal). */ @@ -4750,8 +4754,8 @@ int sqlite3PagerOpen( */ if( zFilename && zFilename[0] ){ const char *z; - nPathname = pVfs->mxPathname+1; - zPathname = sqlite3DbMallocRaw(0, nPathname*2); + nPathname = pVfs->mxPathname + 1; + zPathname = sqlite3DbMallocRaw(0, 2*(i64)nPathname); if( zPathname==0 ){ return SQLITE_NOMEM_BKPT; } @@ -4838,14 +4842,14 @@ int sqlite3PagerOpen( ROUND8(sizeof(*pPager)) + /* Pager structure */ ROUND8(pcacheSize) + /* PCache object */ ROUND8(pVfs->szOsFile) + /* The main db file */ - journalFileSize * 2 + /* The two journal files */ + (u64)journalFileSize * 2 + /* The two journal files */ SQLITE_PTRSIZE + /* Space to hold a pointer */ 4 + /* Database prefix */ - nPathname + 1 + /* database filename */ - nUriByte + /* query parameters */ - nPathname + 8 + 1 + /* Journal filename */ + (u64)nPathname + 1 + /* database filename */ + (u64)nUriByte + /* query parameters */ + (u64)nPathname + 8 + 1 + /* Journal filename */ #ifndef SQLITE_OMIT_WAL - nPathname + 4 + 1 + /* WAL filename */ + (u64)nPathname + 4 + 1 + /* WAL filename */ #endif 3 /* Terminator */ ); |