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| author | Jeremy Allison <jra@samba.org> | 2007-11-20 15:31:18 -0800 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2007-11-20 15:31:18 -0800 |
| commit | 61b37c73eeff8548c63df76e7d650c27746ca720 (patch) | |
| tree | 08f1d3c8fad2cdeba88a391067816a7dc87b1163 /source3/smbd/trans2.c | |
| parent | 2545457268610ab8fe71911bab167b4aeebc4ca3 (diff) | |
| download | samba-61b37c73eeff8548c63df76e7d650c27746ca720.tar.gz samba-61b37c73eeff8548c63df76e7d650c27746ca720.tar.bz2 samba-61b37c73eeff8548c63df76e7d650c27746ca720.zip | |
Paranoia check that space_remaining never goes -ve.
Jeremy.
(This used to be commit 76f9c0b2dccffbff7cbf98aa63f50b48ad7cb9cb)
Diffstat (limited to 'source3/smbd/trans2.c')
| -rw-r--r-- | source3/smbd/trans2.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c index bb24db9ee1..323d78cde1 100644 --- a/source3/smbd/trans2.c +++ b/source3/smbd/trans2.c @@ -1371,7 +1371,9 @@ static bool get_lanman2_dir_entry(TALLOC_CTX *ctx, SSVAL(p,20,mode); p += 23; nameptr = p; - p += align_string(pdata, p, 0); + if (flags2 & FLAGS2_UNICODE_STRINGS) { + p += ucs2_align(base_data, p, 0); + } len = srvstr_push(base_data, flags2, p, fname, PTR_DIFF(end_data, p), STR_TERMINATE); @@ -2022,7 +2024,13 @@ total_data=%u (should be %u)\n", (unsigned int)total_data, (unsigned int)IVAL(pd if(got_exact_match) finished = True; - space_remaining = max_data_bytes - PTR_DIFF(p,pdata); + /* Ensure space_remaining never goes -ve. */ + if (PTR_DIFF(p,pdata) > max_data_bytes) { + space_remaining = 0; + out_of_space = true; + } else { + space_remaining = max_data_bytes - PTR_DIFF(p,pdata); + } } /* Check if we can close the dirptr */ |