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On unix, for certain error codes of read()/pread() return

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SQLITE_IOERR_CORRUPTFS instead of SQLITE_IOERR_READ.  And then convert this
error into SQLITE_CORRUPT prior to returning back to the application.

FossilOrigin-Name: 9538ea8447e7b07c05197d6ff2208d3e97b45798736c85b63e8f0c7a3a98c1f3
This commit is contained in:
drh
2020-11-18 12:48:48 +00:00
parent aff1a57f4d
commit 5a07d10fd1
5 changed files with 46 additions and 18 deletions
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20
src/os_unix.c
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@@ -3375,7 +3375,25 @@ static int unixRead(
if( got==amt ){
return SQLITE_OK;
}else if( got<0 ){
/* lastErrno set by seekAndRead */
/* pFile->lastErrno has been set by seekAndRead().
** Usually we return SQLITE_IOERR_READ here, though for some
** kinds of errors we return SQLITE_IOERR_CORRUPTFS. The
** SQLITE_IOERR_CORRUPTFS will be converted into SQLITE_CORRUPT
** prior to returning to the application by the sqlite3ApiExit()
** routine.
*/
switch( pFile->lastErrno ){
case ERANGE:
case ENOENT:
case EIO:
#ifdef ENXIO
case ENXIO:
#endif
#ifdef EDEVERR
case EDEVERR:
#endif
return SQLITE_IOERR_CORRUPTFS;
}
return SQLITE_IOERR_READ;
}else{
storeLastErrno(pFile, 0); /* not a system error */