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| author | drh <drh@noemail.net> | 2013-08-29 21:26:26 +0000 |
|---|---|---|
| committer | drh <drh@noemail.net> | 2013-08-29 21:26:26 +0000 |
| commit | 0c9a8e345e99a056a2f5f4a8346127a178dde1da (patch) | |
| tree | 186f660fbc7266749126c0e01c0ffc280641004d /src/os_unix.c | |
| parent | 8bff07a55f559223526c93fcf013192577e777dc (diff) | |
| download | sqlite-0c9a8e345e99a056a2f5f4a8346127a178dde1da.tar.gz sqlite-0c9a8e345e99a056a2f5f4a8346127a178dde1da.zip | |
Never leave an open file descriptor pointing into the middle of the
database file if the file descriptor number is 2 or less.
FossilOrigin-Name: 3426673e4659eb68dbd14a3e41d4620d748432db
Diffstat (limited to 'src/os_unix.c')
| -rw-r--r-- | src/os_unix.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/os_unix.c b/src/os_unix.c index 580f8e60e..32201c988 100644 --- a/src/os_unix.c +++ b/src/os_unix.c @@ -588,6 +588,7 @@ static int robust_open(const char *z, int f, mode_t m){ osFchmod(fd, m); } } + if( fd<=2 ) lseek(fd, 0, SEEK_END); #if defined(FD_CLOEXEC) && (!defined(O_CLOEXEC) || O_CLOEXEC==0) osFcntl(fd, F_SETFD, osFcntl(fd, F_GETFD, 0) | FD_CLOEXEC); #endif @@ -3133,6 +3134,7 @@ static int seekAndRead(unixFile *id, sqlite3_int64 offset, void *pBuf, int cnt){ pBuf = (void*)(got + (char*)pBuf); } }while( got>0 ); + if( id->h<=2 ) lseek(id->h, 0, SEEK_END); TIMER_END; OSTRACE(("READ %-3d %5d %7lld %llu\n", id->h, got+prior, offset-prior, TIMER_ELAPSED)); @@ -3232,6 +3234,7 @@ static int seekAndWriteFd( rc = osWrite(fd, pBuf, nBuf); }while( rc<0 && errno==EINTR ); #endif + if( fd<=2 ) lseek(fd, 0, SEEK_END); TIMER_END; OSTRACE(("WRITE %-3d %5d %7lld %llu\n", fd, rc, iOff, TIMER_ELAPSED)); |