socket.c File Reference
Socket convenience functions
`#include "../config.h"`
`#include <osmocom/core/logging.h>`
`#include <osmocom/core/select.h>`
`#include <osmocom/core/socket.h>`
`#include <osmocom/core/sockaddr_str.h>`
`#include <osmocom/core/talloc.h>`
`#include <osmocom/core/utils.h>`
`#include <sys/ioctl.h>`
`#include <sys/socket.h>`
`#include <sys/types.h>`
`#include <sys/un.h>`
`#include <net/if.h>`
`#include <netinet/in.h>`
`#include <arpa/inet.h>`
`#include <stdio.h>`
`#include <unistd.h>`
`#include <stdint.h>`
`#include <string.h>`
`#include <errno.h>`
`#include <netdb.h>`
`#include <ifaddrs.h>`
`#include <netinet/sctp.h>`

## Macros

#define | _SOCKADDR_TO_STR(dest, sockaddr)

## Functions

static struct addrinfo * | addrinfo_helper (uint16_t family, uint16_t type, uint8_t proto, const char *host, uint16_t port, bool passive)
static int | addrinfo_helper_multi (struct addrinfo **addrinfo, uint16_t family, uint16_t type, uint8_t proto, const char **hosts, size_t host_cnt, uint16_t port, bool passive)
| Retrieve an array of addrinfo with specified hints, one for each host in the hosts array. More...
static int | socket_helper_tail (int sfd, unsigned int flags)
static int | socket_helper (const struct addrinfo *rp, unsigned int flags)
static int | socket_helper_osa (const struct osmo_sockaddr *addr, uint16_t type, uint8_t proto, unsigned int flags)
static int | multiaddr_snprintf (char *buf, size_t buf_len, const char **hosts, size_t host_cnt)
static int | osmo_sock_init_tail (int fd, uint16_t type, unsigned int flags)
int | osmo_sock_init2 (uint16_t family, uint16_t type, uint8_t proto, const char *local_host, uint16_t local_port, const char *remote_host, uint16_t remote_port, unsigned int flags)
| Initialize a socket (including bind and/or connect) More...
int | osmo_sock_init_osa (uint16_t type, uint8_t proto, const struct osmo_sockaddr *local, const struct osmo_sockaddr *remote, unsigned int flags)
| Initialize a socket (including bind and/or connect) More...
static void | addrinfo_has_v4v6addr (const struct addrinfo **result, size_t result_count, bool *has_v4, bool *has_v6)
static bool | addrinfo_has_in6addr_any (const struct addrinfo **result, size_t result_count)
static int | socket_helper_multiaddr (uint16_t family, uint16_t type, uint8_t proto, unsigned int flags)
static int | addrinfo_to_sockaddr (uint16_t family, const struct addrinfo **result, const char **hosts, int host_cont, uint8_t *addrs_buf, size_t addrs_buf_len)
int | osmo_sock_init2_multiaddr (uint16_t family, uint16_t type, uint8_t proto, const char **local_hosts, size_t local_hosts_cnt, uint16_t local_port, const char **remote_hosts, size_t remote_hosts_cnt, uint16_t remote_port, unsigned int flags)
| Initialize a socket (including bind and/or connect) with multiple local or remote addresses. More...
int | osmo_sock_init (uint16_t family, uint16_t type, uint8_t proto, const char *host, uint16_t port, unsigned int flags)
| Initialize a socket (including bind/connect) More...
static int | osmo_fd_init_ofd (struct osmo_fd *ofd, int sfd, unsigned int flags)
| fill osmo_fd for a give sfd More...
int | osmo_sock_init_ofd (struct osmo_fd *ofd, int family, int type, int proto, const char *host, uint16_t port, unsigned int flags)
| Initialize a socket and fill osmo_fd. More...
int | osmo_sock_init2_ofd (struct osmo_fd *ofd, int family, int type, int proto, const char *local_host, uint16_t local_port, const char *remote_host, uint16_t remote_port, unsigned int flags)
| Initialize a socket and fill osmo_fd. More...
int | osmo_sock_init_osa_ofd (struct osmo_fd *ofd, int type, int proto, const struct osmo_sockaddr *local, const struct osmo_sockaddr *remote, unsigned int flags)
int | osmo_sock_init_sa (struct sockaddr *ss, uint16_t type, uint8_t proto, unsigned int flags)
| Initialize a socket and fill sockaddr. More...
static int | sockaddr_equal (const struct sockaddr *a, const struct sockaddr *b, unsigned int len)
static int | sockaddr_is_local_routed (const struct sockaddr *a)
int | osmo_sockaddr_is_local (struct sockaddr *addr, unsigned int addrlen)
| Determine if the given address is a local address. More...
size_t | osmo_sockaddr_in_to_str_and_uint (char *addr, unsigned int addr_len, uint16_t *port, const struct sockaddr_in *sin)
| Convert sockaddr_in to IP address as char string and port as uint16_t. More...
unsigned int | osmo_sockaddr_to_str_and_uint (char *addr, unsigned int addr_len, uint16_t *port, const struct sockaddr *sa)
| Convert sockaddr to IP address as char string and port as uint16_t. More...
const char * | osmo_sockaddr_ntop (const struct sockaddr *sa, char *dst)
| inet_ntop() wrapper for a struct sockaddr. More...
uint16_t | osmo_sockaddr_port (const struct sockaddr *sa)
| Get sockaddr port content (in host byte order) More...
int | osmo_sock_unix_init (uint16_t type, uint8_t proto, const char *socket_path, unsigned int flags)
| Initialize a unix domain socket (including bind/connect) More...
int | osmo_sock_unix_init_ofd (struct osmo_fd *ofd, uint16_t type, uint8_t proto, const char *socket_path, unsigned int flags)
| Initialize a unix domain socket and fill osmo_fd. More...
int | osmo_sock_get_ip_and_port (int fd, char *ip, size_t ip_len, char *port, size_t port_len, bool local)
| Get the IP and/or port number on socket in separate string buffers. More...
int | osmo_sock_get_local_ip (int fd, char *ip, size_t len)
| Get local IP address on socket. More...
int | osmo_sock_get_local_ip_port (int fd, char *port, size_t len)
| Get local port on socket. More...
int | osmo_sock_get_remote_ip (int fd, char *ip, size_t len)
| Get remote IP address on socket. More...
int | osmo_sock_get_remote_ip_port (int fd, char *port, size_t len)
| Get remote port on socket. More...
char * | osmo_sock_get_name (const void *ctx, int fd)
| Get address/port information on socket in dyn-alloc string like "(r=1.2.3.4:5<->l=6.7.8.9:10)". More...
int | osmo_sock_get_name_buf (char *str, size_t str_len, int fd)
| Get address/port information on socket in provided string buffer, like "r=1.2.3.4:5<->l=6.7.8.9:10". More...
const char * | osmo_sock_get_name2 (int fd)
| Get address/port information on socket in static string, like "r=1.2.3.4:5<->l=6.7.8.9:10". More...
char * | osmo_sock_get_name2_c (const void *ctx, int fd)
| Get address/port information on socket in static string, like "r=1.2.3.4:5<->l=6.7.8.9:10". More...
static int | sock_get_domain (int fd)
int | osmo_sock_mcast_loop_set (int fd, bool enable)
| Activate or de-activate local loop-back of transmitted multicast packets. More...
int | osmo_sock_mcast_ttl_set (int fd, uint8_t ttl)
| Set the TTL of outbound multicast packets. More...
int | osmo_sock_mcast_iface_set (int fd, const char *ifname)
| Set the network device to which we should bind the multicast socket. More...
int | osmo_sock_mcast_all_set (int fd, bool enable)
| Enable/disable receiving all multicast packets, even for non-subscribed groups. More...
int | osmo_sock_mcast_subscribe (int fd, const char *grp_addr)
| Subscribe to the given IP multicast group. More...
int | osmo_sock_local_ip (char *local_ip, const char *remote_ip)
| Determine the matching local IP-address for a given remote IP-Address. More...
int | osmo_sockaddr_local_ip (struct osmo_sockaddr *local_ip, const struct osmo_sockaddr *remote_ip)
| Determine the matching local address for a given remote address. More...
int | osmo_sockaddr_cmp (const struct osmo_sockaddr *a, const struct osmo_sockaddr *b)
| Compare two osmo_sockaddr. More...
const char * | osmo_sockaddr_to_str (const struct osmo_sockaddr *sockaddr)
| string-format a given osmo_sockaddr address More...
char * | osmo_sockaddr_to_str_buf (char *buf, size_t buf_len, const struct osmo_sockaddr *sockaddr)
| string-format a given osmo_sockaddr address into a user-supplied buffer More...
int | osmo_sock_set_dscp (int fd, uint8_t dscp)
| Set the DSCP (differentiated services code point) of a socket. More...
int | osmo_sock_set_priority (int fd, int prio)
| Set the priority value of a socket. More...