"man 3 cmsg" says "Ancillary data should only be accessed using the
CMSG macros and never directly." Indeed, when we handles cmsghdr mamber
directly, this test falls into the infinite loop on a x86_64 environment.
Signed-off-by: Mitsuru Chinen <[EMAIL PROTECTED]>
---
testcases/network/lib6/asapi_06.c | 12 +++---------
1 files changed, 3 insertions(+), 9 deletions(-)
diff --git a/testcases/network/lib6/asapi_06.c
b/testcases/network/lib6/asapi_06.c
index 48fbdf0..ad0cdae 100644
--- a/testcases/network/lib6/asapi_06.c
+++ b/testcases/network/lib6/asapi_06.c
@@ -349,7 +349,7 @@ so_test(struct soent *psoe)
/* receiver processing */
{ fd_set rfds, rfds_saved;
- int nfds, cc, len;
+ int nfds, cc;
int gotone;
struct timeval tv;
struct msghdr msg;
@@ -400,12 +400,10 @@ so_test(struct soent *psoe)
break;
}
gotone = 0;
- pcmsg = (struct cmsghdr *)msg.msg_control;
- for (len=0; len < msg.msg_controllen; len += pcmsg->cmsg_len) {
+ for (pcmsg = CMSG_FIRSTHDR(&msg); pcmsg != NULL;
+ pcmsg = CMSG_NXTHDR(&msg, pcmsg)) {
if (!psoe->so_dorecv)
break;
- pcmsg = (struct cmsghdr *)(((unsigned char *)
- msg.msg_control) + len);
gotone = pcmsg->cmsg_level == SOL_IPV6 &&
pcmsg->cmsg_type == psoe->so_cmtype;
if (gotone)
@@ -418,10 +416,6 @@ so_test(struct soent *psoe)
return;
}
}
- if (gotone && pcmsg->cmsg_len > 0) {
- unsigned int *cmdat = (unsigned int *)
- ((unsigned char *)pcmsg+sizeof(struct cmsghdr));
- }
/* check contents here */
if (psoe->so_dorecv)
tst_resm(gotone ? TPASS : TFAIL, "%s receive",
--
1.5.4.5
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