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| author | drh <drh@noemail.net> | 2007-02-06 11:11:08 +0000 |
|---|---|---|
| committer | drh <drh@noemail.net> | 2007-02-06 11:11:08 +0000 |
| commit | 8ebf6707cf6716c55d68e2ba7e62ef820c590050 (patch) | |
| tree | 0eb443706498a18817c85907d047151e9d1e2123 /src/os_unix.c | |
| parent | d7263927f7b53330ad4b7fef608ff0b953435ad8 (diff) | |
| download | sqlite-8ebf6707cf6716c55d68e2ba7e62ef820c590050.tar.gz sqlite-8ebf6707cf6716c55d68e2ba7e62ef820c590050.zip | |
Check the return value of lseek() in os_unix.c to make sure it really worked. (CVS 3628)
FossilOrigin-Name: e4408dd1fd32e6c5057cce0fdfa70eb2d9bd2531
Diffstat (limited to 'src/os_unix.c')
| -rw-r--r-- | src/os_unix.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/os_unix.c b/src/os_unix.c index c5fa2c0ed..8ac272e5e 100644 --- a/src/os_unix.c +++ b/src/os_unix.c @@ -1000,10 +1000,14 @@ int sqlite3UnixIsDirWritable(char *zBuf){ */ static int seekAndRead(unixFile *id, void *pBuf, int cnt){ int got; + i64 newOffset; #ifdef USE_PREAD got = pread(id->h, pBuf, cnt, id->offset); #else - lseek(id->h, id->offset, SEEK_SET); + newOffset = lseek(id->h, id->offset, SEEK_SET); + if( newOffset!=id->offset ){ + return -1; + } got = read(id->h, pBuf, cnt); #endif if( got>0 ){ @@ -1043,10 +1047,14 @@ static int unixRead(OsFile *id, void *pBuf, int amt){ */ static int seekAndWrite(unixFile *id, const void *pBuf, int cnt){ int got; + i64 newOffset; #ifdef USE_PREAD got = pwrite(id->h, pBuf, cnt, id->offset); #else - lseek(id->h, id->offset, SEEK_SET); + newOffset = lseek(id->h, id->offset, SEEK_SET); + if( newOffset!=id->offset ){ + return -1; + } got = write(id->h, pBuf, cnt); #endif if( got>0 ){ |