83 lines
2.8 KiB
C
83 lines
2.8 KiB
C
/* util.h
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef _UTIL_H_
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#define _UTIL_H_
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#include <stdio.h>
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#include <wolfssl/ssl.h>
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#include <ifaddrs.h>
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#include <applibs/log.h>
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#define _GNU_SOURCE /* defines NI_NUMERICHOST */
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#ifndef NI_MAXHOST
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#define NI_MAXHOST 256
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#endif
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static void util_Cleanup(int sockfd, WOLFSSL_CTX* ctx, WOLFSSL* ssl)
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{
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wolfSSL_free(ssl); /* Free the wolfSSL object */
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wolfSSL_CTX_free(ctx); /* Free the wolfSSL context object */
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wolfSSL_Cleanup(); /* Cleanup the wolfSSL environment */
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close(sockfd); /* Close the connection to the server */
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}
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/* Displays each AF_INET interface and it's IP Address
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* Return: WOLFSSL_SUCCESS if print is successful else WOLFSSL_FAILURE
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*/
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static int util_PrintIfAddr(void)
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{
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char host[NI_MAXHOST];
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struct ifaddrs* ifaddr, * nxt;
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int family, info, n;
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/* Get a linked list of 'struct ifaddrs*' */
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if (getifaddrs(&ifaddr) != 0) {
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fprintf(stderr, "ERROR: Getting network interface and IP address");
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return WOLFSSL_FAILURE;
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}
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printf("\nInterface IP Address\n");
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/* Traverse ifaddr linked list using nxt */
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for (nxt = ifaddr; nxt != NULL; nxt = nxt->ifa_next) {
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if (nxt->ifa_addr == NULL)
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continue;
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family = nxt->ifa_addr->sa_family;
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/* Display the address of each AF_INET* interface */
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if (family == AF_INET) {
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info = getnameinfo(nxt->ifa_addr, sizeof(struct sockaddr_in),
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host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
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if (info != 0) {
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fprintf(stderr, "Failed to getnameinfo");
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freeifaddrs(ifaddr);
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return WOLFSSL_FAILURE;
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}
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/* Determine amount of space, n, to justify IP Address */
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n = (int)strlen("Interface ") - (int)strlen(nxt->ifa_name);
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n = (n > 0) ? n : 1; /* Set space to 1 if n is negative */
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printf("%s %*c%s>\n", nxt->ifa_name, n, '<', host);
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}
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}
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printf("\n");
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freeifaddrs(ifaddr);
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return WOLFSSL_SUCCESS;
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}
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#endif
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