Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760800Ab2FVAms (ORCPT ); Thu, 21 Jun 2012 20:42:48 -0400 Received: from p3plsmtps2ded03.prod.phx3.secureserver.net ([208.109.80.60]:47182 "HELO p3plsmtps2ded03-02.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1760780Ab2FVAmr (ORCPT ); Thu, 21 Jun 2012 20:42:47 -0400 From: "K. Y. Srinivasan" To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org, ohering@suse.com, apw@canonical.com Cc: "K. Y. Srinivasan" Subject: [PATCH 09/13] Tools: hv: Gather DNS information Date: Thu, 21 Jun 2012 14:31:41 -0700 Message-Id: <1340314305-27126-9-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1340314305-27126-1-git-send-email-kys@microsoft.com> References: <1340314200-27078-1-git-send-email-kys@microsoft.com> <1340314305-27126-1-git-send-email-kys@microsoft.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2097 Lines: 84 Now gather DNS information. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang --- tools/hv/hv_kvp_daemon.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 50 insertions(+), 0 deletions(-) diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index 8a153c5..101ab7f 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -490,6 +490,50 @@ done: return; } +static void kvp_get_ipconfig_info(char *if_name, + struct hv_kvp_ipaddr_value *buffer) +{ + char cmd[512]; + char *dns_config = "/var/opt/hyperv/.kvp_dns_cfg"; + FILE *file; + char buf[256]; + char *dns_buf; + char *p; + char *x; + + memset(cmd, 0, 512); + strcat(cmd, "cat /etc/resolv.conf 2>/tmp/null | "); + strcat(cmd, " awk '/nameserver/ {print $2 }' > "); + strcat(cmd, "/var/opt/hyperv/.kvp_dns_cfg"); + + /* + * Execute the command to gather dns info. + */ + system(cmd); + file = fopen(dns_config, "r"); + if (file == NULL) + return; + + dns_buf = (char *)(buffer->dns_addr); + /* + * The buffer is an array of __u16 elements. + */ + memset(dns_buf, 0, (MAX_IP_ADDR_SIZE * 2)); + while ((p = fgets(buf, sizeof(buf), file)) != NULL) { + if (((MAX_IP_ADDR_SIZE * 2) - strlen(dns_buf)) < + (INET6_ADDRSTRLEN + 1)) + break; + + x = strchr(p, '\n'); + *x = '\0'; + strcat(dns_buf, p); + strcat(dns_buf, ";"); + } + fclose(file); + +} + + static unsigned int hweight32(unsigned int *w) { unsigned int res = *w - ((*w >> 1) & 0x55555555); @@ -649,6 +693,12 @@ kvp_get_ip_address(int family, char *if_name, int op, strcat((char *)ip_buffer->sub_net, ";"); sn_offset += strlen(sn_str) + 1; } + + /* + * Collect other ip related configuration info. + */ + + kvp_get_ipconfig_info(if_name, ip_buffer); } gather_ipaddr: -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/