diff options
| author | Perl 5 Porters <perl5-porters@africa.nicoh.com> | 1996-09-07 23:55:22 +0000 |
|---|---|---|
| committer | Andy Dougherty <doughera@lafcol.lafayette.edu> | 1996-09-07 23:55:22 +0000 |
| commit | 1639c7b394658ecd7eb856ba9df0fd2269415ecd (patch) | |
| tree | eec98edf94b3157925a2c4e97a71fc5ee96a7d3f /ext | |
| parent | 2c891ab9c8edfc8e2047084edbe1f65cc4d305b8 (diff) | |
| download | perl-1639c7b394658ecd7eb856ba9df0fd2269415ecd.tar.gz | |
perl 5.003_05: ext/ODBM_File/ODBM_File.xs
Attempt to correct for "Bad free" in Ultrix and HPUX versions of
odbm.
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/ODBM_File/ODBM_File.xs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/ext/ODBM_File/ODBM_File.xs b/ext/ODBM_File/ODBM_File.xs index c1b405ff89..92b443ce99 100644 --- a/ext/ODBM_File/ODBM_File.xs +++ b/ext/ODBM_File/ODBM_File.xs @@ -13,6 +13,21 @@ # endif #endif +#ifdef DBM_BUG_DUPLICATE_FREE +/* + * DBM on at least Ultrix and HPUX call dbmclose() from dbminit(), + * resulting in duplicate free() because dbmclose() does *not* + * check if it has already been called for this DBM. + * If some malloc/free calls have been done between dbmclose() and + * the next dbminit(), the memory might be used for something else when + * it is freed. + * Verified to work on ultrix4.3. Probably will work on HP/UX. + * Set DBM_BUG_DUPLICATE_FREE in the extension hint file. + */ +/* Close the previous dbm, and fail to open a new dbm */ +#define dbmclose() ((void) dbminit("/tmp/x/y/z/z/y")) +#endif + #include <fcntl.h> typedef void* ODBM_File; |