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Overview
| Comment: | Make use of the sqlite3GetBoolean() interface for more robust processing of the readonly_shm query parameter inside of unixShmMap(). |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | wal-readonly |
| Files: | files | file ages | folders |
| SHA1: |
1f930d7e04cd4a5ff3d91a0e9f1b6211 |
| User & Date: | drh 2011-06-01 20:13:36 |
| Original Comment: | Make use of the sqlite3GetBoolean() interface for more robust processing of the readonly_shm query parameter inside of unixShmMap(). |
Context
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2011-06-02
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| 13:04 | Merge the read-only shared memory branch into trunk. After this merge, an unprivileged process can open WAL-mode databases owned by another user as long as a database connection with write permission exists on the database file and if the readonly_shm=1 URI query parameter is supplied. check-in: 19084a66 user: drh tags: trunk | |
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2011-06-01
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| 20:13 | Make use of the sqlite3GetBoolean() interface for more robust processing of the readonly_shm query parameter inside of unixShmMap(). Closed-Leaf check-in: 1f930d7e user: drh tags: wal-readonly | |
| 20:01 | Simplify the wal-readonly branch so that it does not require changes to anything other than os_unix.c and wal.c and a couple of new error codes. check-in: d6b4709d user: drh tags: wal-readonly | |
Changes
Changes to src/os_unix.c.
3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 |
if( pInode->bProcessLock==0 ){
pShmNode->h = robust_open(zShmFilename, O_RDWR|O_CREAT,
(sStat.st_mode & 0777));
if( pShmNode->h<0 ){
const char *zRO;
zRO = sqlite3_uri_parameter(pDbFd->zPath, "readonly_shm");
if( zRO && (zRO[0]!='0' || zRO[1]!=0) ){
pShmNode->h = robust_open(zShmFilename, O_RDONLY,
(sStat.st_mode & 0777));
pShmNode->isReadonly = 1;
}
if( pShmNode->h<0 ){
rc = unixLogError(SQLITE_CANTOPEN_BKPT, "open", zShmFilename);
goto shm_open_err;
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3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 |
if( pInode->bProcessLock==0 ){
pShmNode->h = robust_open(zShmFilename, O_RDWR|O_CREAT,
(sStat.st_mode & 0777));
if( pShmNode->h<0 ){
const char *zRO;
zRO = sqlite3_uri_parameter(pDbFd->zPath, "readonly_shm");
if( zRO && sqlite3GetBoolean(zRO) ){
pShmNode->h = robust_open(zShmFilename, O_RDONLY,
(sStat.st_mode & 0777));
pShmNode->isReadonly = 1;
}
if( pShmNode->h<0 ){
rc = unixLogError(SQLITE_CANTOPEN_BKPT, "open", zShmFilename);
goto shm_open_err;
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