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authorYu Watanabe <watanabe.yu+github@gmail.com>2021-02-18 01:29:43 +0900
committerYu Watanabe <watanabe.yu+github@gmail.com>2021-02-18 03:48:07 +0900
commit94876904bbd7596c58e0a4a60efc0c1e74eb8e98 (patch)
tree64c982842362623d9ec64a816d3094faa076b1f7 /src/libsystemd-network/icmp6-util.c
parent275468c033ab4a5da4c6a6d32baa3268b3f46d09 (diff)
downloadsystemd-94876904bbd7596c58e0a4a60efc0c1e74eb8e98.tar.gz
tree-wide: use in_addr_is_set() or friends
Diffstat (limited to 'src/libsystemd-network/icmp6-util.c')
-rw-r--r--src/libsystemd-network/icmp6-util.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/src/libsystemd-network/icmp6-util.c b/src/libsystemd-network/icmp6-util.c
index 4af012534a..d079ad40e9 100644
--- a/src/libsystemd-network/icmp6-util.c
+++ b/src/libsystemd-network/icmp6-util.c
@@ -145,8 +145,8 @@ int icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) {
return 0;
}
-int icmp6_receive(int fd, void *buffer, size_t size, struct in6_addr *dst,
- triple_timestamp *timestamp) {
+int icmp6_receive(int fd, void *buffer, size_t size, struct in6_addr *ret_dst,
+ triple_timestamp *ret_timestamp) {
CMSG_BUFFER_TYPE(CMSG_SPACE(sizeof(int)) + /* ttl */
CMSG_SPACE(sizeof(struct timeval))) control;
@@ -161,6 +161,8 @@ int icmp6_receive(int fd, void *buffer, size_t size, struct in6_addr *dst,
.msg_controllen = sizeof(control),
};
struct cmsghdr *cmsg;
+ struct in6_addr addr = {};
+ triple_timestamp t;
ssize_t len;
iov = IOVEC_MAKE(buffer, size);
@@ -175,8 +177,8 @@ int icmp6_receive(int fd, void *buffer, size_t size, struct in6_addr *dst,
if (msg.msg_namelen == sizeof(struct sockaddr_in6) &&
sa.in6.sin6_family == AF_INET6) {
- *dst = sa.in6.sin6_addr;
- if (in_addr_is_link_local(AF_INET6, (union in_addr_union*) dst) <= 0)
+ addr = sa.in6.sin6_addr;
+ if (!in6_addr_is_link_local(&addr))
return -EADDRNOTAVAIL;
} else if (msg.msg_namelen > 0)
@@ -200,11 +202,13 @@ int icmp6_receive(int fd, void *buffer, size_t size, struct in6_addr *dst,
if (cmsg->cmsg_level == SOL_SOCKET &&
cmsg->cmsg_type == SO_TIMESTAMP &&
cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval)))
- triple_timestamp_from_realtime(timestamp, timeval_load((struct timeval*) CMSG_DATA(cmsg)));
+ triple_timestamp_from_realtime(&t, timeval_load((struct timeval*) CMSG_DATA(cmsg)));
}
- if (!triple_timestamp_is_set(timestamp))
- triple_timestamp_get(timestamp);
+ if (!triple_timestamp_is_set(&t))
+ triple_timestamp_get(&t);
+ *ret_dst = addr;
+ *ret_timestamp = t;
return 0;
}