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net: Refactor to protect access to the NetState variable

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Changes to NetState now go through an accessor function called
net_set_state()

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger
2012-05-23 07:59:14 +00:00
parent adf5d93e44
commit 22f6e99d5b
9 changed files with 48 additions and 37 deletions
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8
net/dns.c
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@@ -98,7 +98,7 @@ static void
DnsTimeout(void)
{
puts("Timeout\n");
NetState = NETLOOP_FAIL;
net_set_state(NETLOOP_FAIL);
}
static void
@@ -128,7 +128,7 @@ DnsHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, unsigned len)
/* Received 0 answers */
if (header->nanswers == 0) {
puts("DNS: host not found\n");
NetState = NETLOOP_SUCCESS;
net_set_state(NETLOOP_SUCCESS);
return;
}
@@ -141,7 +141,7 @@ DnsHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, unsigned len)
/* We sent query class 1, query type 1 */
if (&p[5] > e || get_unaligned_be16(p+1) != DNS_A_RECORD) {
puts("DNS: response was not an A record\n");
NetState = NETLOOP_SUCCESS;
net_set_state(NETLOOP_SUCCESS);
return;
}
@@ -191,7 +191,7 @@ DnsHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, unsigned len)
puts("server responded with invalid IP number\n");
}
NetState = NETLOOP_SUCCESS;
net_set_state(NETLOOP_SUCCESS);
}
void