mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-03 09:01:54 -05:00
4888b35284
Use `getaddrinfo` in `parse_address` instead of `inet_pton`. Display Ipv6 addresses with scope identifiers correctly in `get_ip` functions using `if_indextoname`.
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
#ifndef NETWORK_UTILS_H
|
|
#define NETWORK_UTILS_H
|
|
|
|
#include <stdio.h>
|
|
#include <netdb.h>
|
|
#include <string.h>
|
|
#include <arpa/inet.h>
|
|
#include <net/if.h>
|
|
#include <errno.h>
|
|
|
|
static int parse_address(const char *address, uint16_t port,
|
|
struct sockaddr_storage *addr, socklen_t *len)
|
|
{
|
|
struct addrinfo hints;
|
|
struct addrinfo *result, *rp;
|
|
int res;
|
|
char port_str[6];
|
|
|
|
snprintf(port_str, sizeof(port_str), "%u", port);
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_DGRAM;
|
|
hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
|
|
|
|
res = getaddrinfo(address, port_str, &hints, &result);
|
|
|
|
if (res != 0) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (rp = result; rp != NULL; rp = rp->ai_next) {
|
|
memcpy(addr, rp->ai_addr, rp->ai_addrlen);
|
|
*len = rp->ai_addrlen;
|
|
break;
|
|
}
|
|
freeaddrinfo(result);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_ip(const struct sockaddr_storage *sa, char *ip, size_t len, bool *ip4, uint16_t *port)
|
|
{
|
|
if (sa->ss_family == AF_INET) {
|
|
struct sockaddr_in *in = (struct sockaddr_in*)sa;
|
|
inet_ntop(sa->ss_family, &in->sin_addr, ip, len);
|
|
if (port)
|
|
*port = ntohs(in->sin_port);
|
|
} else if (sa->ss_family == AF_INET6) {
|
|
struct sockaddr_in6 *in = (struct sockaddr_in6*)sa;
|
|
inet_ntop(sa->ss_family, &in->sin6_addr, ip, len);
|
|
if (port)
|
|
*port = ntohs(in->sin6_port);
|
|
if (in->sin6_scope_id == 0 || len <= 1) {
|
|
goto finish;
|
|
}
|
|
size_t curlen = strlen(ip);
|
|
if (len-(curlen+1) >= IFNAMSIZ) {
|
|
ip += curlen+1;
|
|
ip[-1] = '%';
|
|
if (if_indextoname(in->sin6_scope_id, ip) == NULL) {
|
|
ip[-1] = 0;
|
|
}
|
|
}
|
|
} else
|
|
return -EINVAL;
|
|
finish:
|
|
if (ip4)
|
|
*ip4 = sa->ss_family == AF_INET;
|
|
return 0;
|
|
}
|
|
|
|
static inline char *get_ip_fmt(const struct sockaddr_storage *sa, char *ip, size_t len)
|
|
{
|
|
if (get_ip(sa, ip, len, NULL, NULL) != 0) {
|
|
snprintf(ip, len, "invalid ip");
|
|
}
|
|
return ip;
|
|
}
|
|
|
|
#endif /* NETWORK_UTILS_H */
|