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treewide: Add IN4ADDR_ANY_INIT macro

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We already define IN4ADDR_LOOPBACK_INIT to initialise a struct in_addr to
the loopback address, make a similar one for the unspecified / any address.
This avoids messying things with the internal structure of struct in_addr
where we don't care about it.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2023-12-08 01:31:35 +11:00 committed by Stefano Brivio
parent 546332786c
commit 073f530bfe
2 changed files with 4 additions and 1 deletions
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2
icmp.c
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@ -169,7 +169,7 @@ int icmp_tap_handler(const struct ctx *c, uint8_t pif, int af,
if (af == AF_INET) { if (af == AF_INET) {
struct sockaddr_in sa = { struct sockaddr_in sa = {
.sin_family = AF_INET, .sin_family = AF_INET,
.sin_addr = { .s_addr = htonl(INADDR_ANY) }, .sin_addr = IN4ADDR_ANY_INIT,
}; };
union icmp_epoll_ref iref; union icmp_epoll_ref iref;
struct icmphdr *ih; struct icmphdr *ih;

3
util.h
View file

@ -122,6 +122,9 @@
(((struct in_addr *)(a))->s_addr == ((struct in_addr *)b)->s_addr) (((struct in_addr *)(a))->s_addr == ((struct in_addr *)b)->s_addr)
#define IN4ADDR_LOOPBACK_INIT \ #define IN4ADDR_LOOPBACK_INIT \
{ .s_addr = htonl_constant(INADDR_LOOPBACK) } { .s_addr = htonl_constant(INADDR_LOOPBACK) }
#define IN4ADDR_ANY_INIT \
{ .s_addr = htonl_constant(INADDR_ANY) }
#define NS_FN_STACK_SIZE (RLIMIT_STACK_VAL * 1024 / 8) #define NS_FN_STACK_SIZE (RLIMIT_STACK_VAL * 1024 / 8)
int do_clone(int (*fn)(void *), char *stack_area, size_t stack_size, int flags, int do_clone(int (*fn)(void *), char *stack_area, size_t stack_size, int flags,