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| author | ache <ache@FreeBSD.org> | 2001-10-24 17:25:49 +0000 |
|---|---|---|
| committer | ache <ache@FreeBSD.org> | 2001-10-24 17:25:49 +0000 |
| commit | d21dd859f6a4af1b564c79f9848d875de721970c (patch) | |
| tree | f96fc1ff02277fb89f03d5cd3347ce2e36bfdb75 /lib/libc/stdio/stdio.c | |
| parent | d34d40c8b9663341588b0ba25eff2e837974ce2c (diff) | |
| download | FreeBSD-src-d21dd859f6a4af1b564c79f9848d875de721970c.zip FreeBSD-src-d21dd859f6a4af1b564c79f9848d875de721970c.tar.gz | |
Help to recover from bad seek (i.e. negative or too big) happens beyond
our pre-check control. Do the same way as refill.c does when it set __SERR,
i.e. clear read and ungetc buffers. Clear EOF flag too.
Diffstat (limited to 'lib/libc/stdio/stdio.c')
| -rw-r--r-- | lib/libc/stdio/stdio.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/libc/stdio/stdio.c b/lib/libc/stdio/stdio.c index 4bee608..7f66fa8 100644 --- a/lib/libc/stdio/stdio.c +++ b/lib/libc/stdio/stdio.c @@ -171,6 +171,13 @@ _sseek(fp, offset, whence) */ if (ret < 0) { if (errret == 0) { + if (offset != 0 || whence != SEEK_CUR) { + if (HASUB(fp)) + FREEUB(fp); + fp->_p = fp->_bf._base; + fp->_r = 0; + fp->_flags &= ~__SEOF; + } fp->_flags |= __SERR; errno = EINVAL; } else if (errret == ESPIPE) |
