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author | Richard Levitte <levitte@openssl.org> | 2015-12-30 14:56:59 +0100 |
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committer | Richard Levitte <levitte@openssl.org> | 2015-12-30 14:56:59 +0100 |
commit | 36830ecac7a5ff1935e465d6e95f32d72e614a56 (patch) | |
tree | e09f9c2b4aaaa289a44dccaa0321bf684086262b /ssl/packet_locl.h | |
parent | 3dc9589cc84735a8478b34a121e648d1cadfb715 (diff) |
SIZE_MAX doesn't exist everywhere, supply an alternative
SIZE_MAX is a great macro, and does unfortunately not exist everywhere.
Since we check against half of it, using bitwise shift to calculate the
value of half SIZE_MAX should be safe enough.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Diffstat (limited to 'ssl/packet_locl.h')
-rw-r--r-- | ssl/packet_locl.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ssl/packet_locl.h b/ssl/packet_locl.h index 39fac55bb4..48a5f3d7dc 100644 --- a/ssl/packet_locl.h +++ b/ssl/packet_locl.h @@ -111,8 +111,13 @@ __owur static ossl_inline int PACKET_buf_init(PACKET *pkt, unsigned char *buf, size_t len) { /* Sanity check for negative values. */ +#ifdef SIZE_MAX if (len > (size_t)(SIZE_MAX / 2)) return 0; +#else + if (len > ((size_t)2 << (sizeof(size_t) * 8 - 1))) + return 0; +#endif pkt->curr = buf; pkt->remaining = len; |