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| author | Sascha Schumann <sas@php.net> | 2004-03-07 22:35:26 +0000 |
|---|---|---|
| committer | Sascha Schumann <sas@php.net> | 2004-03-07 22:35:26 +0000 |
| commit | 048e66b2a9b0ce089b15920618044a3834feb276 (patch) | |
| tree | d2070e926c1c417250ef85c3f9f471be59d90f54 | |
| parent | 70757063a7cca44d333c9d6c209bb676d0d35eb4 (diff) | |
| download | php-git-048e66b2a9b0ce089b15920618044a3834feb276.tar.gz | |
Avoid using floating point arithmetic and rely on safe_emalloc
for the multiplication.
The actual size requirement is spelled out as:
** The result is written into a preallocated output buffer "out".
** "out" must be able to hold at least 2 +(257*n)/254 bytes.
** In other words, the output will be expanded by as much as 3
** bytes for every 254 bytes of input plus 2 bytes of fixed overhead.
** (This is approximately 2 + 1.0118*n or about a 1.2% size increase.)
| -rw-r--r-- | ext/sqlite/sess_sqlite.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/sqlite/sess_sqlite.c b/ext/sqlite/sess_sqlite.c index c9616bc07d..8789cd6109 100644 --- a/ext/sqlite/sess_sqlite.c +++ b/ext/sqlite/sess_sqlite.c @@ -142,7 +142,7 @@ PS_WRITE_FUNC(sqlite) t = time(NULL); - binary = emalloc(1 + 5 + vallen * ((float) 256 / (float) 253)); + binary = safe_emalloc(1 + vallen / 254, 257, 3); binlen = sqlite_encode_binary((const unsigned char*)val, vallen, binary); rv = sqlite_exec_printf(db, "REPLACE INTO session_data VALUES('%q', '%q', %d)", NULL, NULL, &error, key, binary, t); |