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| author | rsc <devnull@localhost> | 2004-06-16 15:32:56 +0000 |
|---|---|---|
| committer | rsc <devnull@localhost> | 2004-06-16 15:32:56 +0000 |
| commit | 39ef727f465306bad804814e58ee0a94224c9fec (patch) | |
| tree | c43c3f817714e8133902ea20b6d22ea701298e4d /src/libbio | |
| parent | 75a69d3b20b73b4a66530043090198b8be1d7d0a (diff) | |
| download | plan9port-39ef727f465306bad804814e58ee0a94224c9fec.tar.gz plan9port-39ef727f465306bad804814e58ee0a94224c9fec.tar.bz2 plan9port-39ef727f465306bad804814e58ee0a94224c9fec.zip | |
do a better job with 64-bit files
Diffstat (limited to 'src/libbio')
| -rw-r--r-- | src/libbio/bseek.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/src/libbio/bseek.c b/src/libbio/bseek.c index c9e4493e..4e79affd 100644 --- a/src/libbio/bseek.c +++ b/src/libbio/bseek.c @@ -5,6 +5,7 @@ off_t Bseek(Biobuf *bp, off_t offset, int base) { vlong n, d; + int bufsz; switch(bp->state) { default: @@ -28,13 +29,16 @@ Bseek(Biobuf *bp, off_t offset, int base) */ if(base == 0) { d = n - Boffset(bp); - bp->icount += d; - if(d >= 0) { - if(bp->icount <= 0) - return n; - } else { - if(bp->ebuf - bp->gbuf >= -bp->icount) - return n; + bufsz = bp->ebuf - bp->gbuf; + if(-bufsz <= d && d <= bufsz){ + bp->icount += d; + if(d >= 0) { + if(bp->icount <= 0) + return n; + } else { + if(bp->ebuf - bp->gbuf >= -bp->icount) + return n; + } } } |