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| author | rsc <devnull@localhost> | 2004-10-22 17:14:17 +0000 |
|---|---|---|
| committer | rsc <devnull@localhost> | 2004-10-22 17:14:17 +0000 |
| commit | 493f3d0fbf548303a8f468ffffca8476607ee2cd (patch) | |
| tree | 09358f7184065cba2c2df69fe0eb1d4371b5dd0d | |
| parent | 298f6bd657fd2c0cd6c1fc049be9e2a139e2ae05 (diff) | |
| download | plan9port-493f3d0fbf548303a8f468ffffca8476607ee2cd.tar.gz plan9port-493f3d0fbf548303a8f468ffffca8476607ee2cd.tar.bz2 plan9port-493f3d0fbf548303a8f468ffffca8476607ee2cd.zip | |
make sure a write of 0 bytes does a 0-length write.
| -rw-r--r-- | src/libfs/write.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/libfs/write.c b/src/libfs/write.c index 5da27d12..e4b6253d 100644 --- a/src/libfs/write.c +++ b/src/libfs/write.c @@ -43,16 +43,18 @@ _fspwrite(Fid *fid, void *buf, long n, vlong offset) long fspwrite(Fid *fid, void *buf, long n, vlong offset) { - long tot, want, got; + long tot, want, got, first; uint msize; msize = fid->fs->msize - IOHDRSZ; tot = 0; - while(tot < n){ + first = 1; + while(tot < n || first){ want = n - tot; if(want > msize) want = msize; got = _fspwrite(fid, buf, want, offset); + first = 0; if(got < 0){ if(tot == 0) return got; |