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Fixed alignment problems in announcement packet creation

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This commit is contained in:
adamdunkels 2009-11-27 12:49:27 +00:00
parent 236a6eee15
commit aeefa75304
1 changed files with 12 additions and 10 deletions
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22
core/net/mac/xmac.c
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@ -28,7 +28,7 @@
* *
* This file is part of the Contiki operating system. * This file is part of the Contiki operating system.
* *
* $Id: xmac.c,v 1.41 2009/11/04 16:02:45 adamdunkels Exp $ * $Id: xmac.c,v 1.42 2009/11/27 12:49:27 adamdunkels Exp $
*/ */
/** /**
@ -379,24 +379,26 @@ parse_announcements(const rimeaddr_t *from)
static int static int
format_announcement(char *hdr) format_announcement(char *hdr)
{ {
struct announcement_msg *adata; struct announcement_msg adata;
struct announcement *a; struct announcement *a;
/* Construct the announcements */ /* Construct the announcements */
adata = (struct announcement_msg *)hdr; /* adata = (struct announcement_msg *)hdr;*/
adata->num = 0; adata.num = 0;
for(a = announcement_list(); for(a = announcement_list();
a != NULL && adata->num < ANNOUNCEMENT_MAX; a != NULL && adata.num < ANNOUNCEMENT_MAX;
a = a->next) { a = a->next) {
adata->data[adata->num].id = a->id; adata.data[adata->num].id = a->id;
adata->data[adata->num].value = a->value; adata.data[adata->num].value = a->value;
adata->num++; adata.num++;
} }
if(adata->num > 0) { memcpy(hdr, &adata, sizeof(struct announcement_msg));
if(adata.num > 0) {
return ANNOUNCEMENT_MSG_HEADERLEN + return ANNOUNCEMENT_MSG_HEADERLEN +
sizeof(struct announcement_data) * adata->num; sizeof(struct announcement_data) * adata.num;
} else { } else {
return 0; return 0;
} }