55 lines
1.0 KiB
C
55 lines
1.0 KiB
C
#include <errno.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include "mbag.h"
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#include "log.h"
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#include "dbg.h"
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#include "cw.h"
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int cw_put_local_ip_address(int sock, uint8_t *dst, int ipv4elem_id, int ipv6elem_id)
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{
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struct sockaddr_storage a;
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int id;
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socklen_t alen = sizeof(struct sockaddr_storage);
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int rc = getsockname(sock, (struct sockaddr *) &a, &alen);
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if (rc != 0){
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cw_log(LOG_ERR,"Can't determine sock IP address - %s\n",strerror(errno));
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return 0;
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}
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switch (((struct sockaddr *) &a)->sa_family) {
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case AF_INET:
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{
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struct sockaddr_in *sain = (struct sockaddr_in *) &a;
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id = ipv4elem_id;
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cw_put_data(dst + 4, (uint8_t *) & sain->sin_addr, 4);
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return 4 + cw_put_elem_hdr(dst, id, 4);
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}
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case AF_INET6:
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{
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struct sockaddr_in6 *sain;
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id = ipv6elem_id;
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sain = (struct sockaddr_in6 *) &a;
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cw_put_data(dst + 4, (uint8_t *) & sain->sin6_addr, 16);
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return 16 + cw_put_elem_hdr(dst, id, 16);
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}
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}
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cw_log(DBG_MSG_ERR, "Can't determine CAPWAP Local IP Adress");
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return 0;
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}
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