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Align CMSG buffers to a void* boundary, fixes crash on architectures with strict alignment

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This commit is contained in:
Witold Kręcicki
2018-09-07 09:34:32 +02:00
parent a985badd34
commit 17212cf996
3 changed files with 11 additions and 2 deletions
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5
lib/isc/unix/socket.c
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@@ -315,8 +315,9 @@ typedef isc_event_t intev_t;
#define CMSG_SP_INT 24
#define RECVCMSGBUFLEN (2*(CMSG_SP_IN6PKT + CMSG_SP_TIMESTAMP + CMSG_SP_TCTOS)+1)
#define SENDCMSGBUFLEN (2*(CMSG_SP_IN6PKT + CMSG_SP_INT + CMSG_SP_TCTOS)+1)
/* Align cmsg buffers to be safe on SPARC etc. */
#define RECVCMSGBUFLEN ALIGN(2*(CMSG_SP_IN6PKT + CMSG_SP_TIMESTAMP + CMSG_SP_TCTOS)+1, sizeof(void*))
#define SENDCMSGBUFLEN ALIGN(2*(CMSG_SP_IN6PKT + CMSG_SP_INT + CMSG_SP_TCTOS)+1, sizeof(void*))
/*%
* The number of times a send operation is repeated if the result is EINTR.