From deb9a4ed5d852c4e01c3811f30a521f52bbb2817 Mon Sep 17 00:00:00 2001
From: Zdenek Styblik <stybla@turnovfree.net>
Date: Fri, 17 Oct 2014 19:33:37 +0200
Subject: [PATCH] ID#277 - support for hostnames longer than 64 chars

ID#313 ipmitool doesn't support hostname long than 64 symbols
ID#277 Minor issue with ipmi_intf_session_set_hostname()

Commit adds support pretty much for FQDN not just up to the length of one label.
This is achieved by change in in struct ipmi_session; and strdup() of user
input. Of course, we have to free() this once we're done.
---
 include/ipmitool/ipmi_intf.h         |  3 ++-
 src/plugins/ipmi_intf.c              | 27 ++++++++++++++++++++-------
 src/plugins/lan/lan.c                |  7 +------
 src/plugins/lanplus/lanplus.c        |  8 +-------
 src/plugins/serial/serial_basic.c    |  7 +------
 src/plugins/serial/serial_terminal.c |  7 +------
 6 files changed, 26 insertions(+), 33 deletions(-)

diff --git a/include/ipmitool/ipmi_intf.h b/include/ipmitool/ipmi_intf.h
index 437a427..f9f6592 100644
--- a/include/ipmitool/ipmi_intf.h
+++ b/include/ipmitool/ipmi_intf.h
@@ -63,7 +63,7 @@ enum LANPLUS_SESSION_STATE {
 #define IPMI_KG_BUFFER_SIZE       21 /* key plus null byte */
 
 struct ipmi_session {
-	uint8_t hostname[64];
+	char *hostname; /* Numeric IP adress or DNS name - see RFC 1034/RFC 1035 */
 	uint8_t username[17];
 	uint8_t authcode[IPMI_AUTHCODE_BUFFER_SIZE + 1];
 	uint8_t challenge[16];
@@ -213,6 +213,7 @@ void ipmi_intf_session_set_port(struct ipmi_intf * intf, int port);
 void ipmi_intf_session_set_authtype(struct ipmi_intf * intf, uint8_t authtype);
 void ipmi_intf_session_set_timeout(struct ipmi_intf * intf, uint32_t timeout);
 void ipmi_intf_session_set_retry(struct ipmi_intf * intf, int retry);
+void ipmi_intf_session_cleanup(struct ipmi_intf *intf);
 void ipmi_cleanup(struct ipmi_intf * intf);
 
 #if defined(IPMI_INTF_LAN) || defined (IPMI_INTF_LANPLUS)
diff --git a/src/plugins/ipmi_intf.c b/src/plugins/ipmi_intf.c
index 0fa76be..a84237e 100644
--- a/src/plugins/ipmi_intf.c
+++ b/src/plugins/ipmi_intf.c
@@ -194,15 +194,14 @@ struct ipmi_intf * ipmi_intf_load(char * name)
 void
 ipmi_intf_session_set_hostname(struct ipmi_intf * intf, char * hostname)
 {
-	if (intf->session == NULL)
+	if (intf->session == NULL || hostname == NULL) {
 		return;
-
-	memset(intf->session->hostname, 0, 16);
-
-	if (hostname != NULL) {
-		memcpy(intf->session->hostname, hostname,
-		       __min(strlen(hostname), 64));
 	}
+	if (intf->session->hostname != NULL) {
+		free(intf->session->hostname);
+		intf->session->hostname = NULL;
+	}
+	intf->session->hostname = strdup(hostname);
 }
 
 void
@@ -330,6 +329,20 @@ ipmi_intf_session_set_retry(struct ipmi_intf * intf, int retry)
 	intf->session->retry = retry;
 }
 
+void
+ipmi_intf_session_cleanup(struct ipmi_intf *intf)
+{
+	if (intf->session == NULL) {
+		return;
+	}
+	if (intf->session->hostname != NULL) {
+		free(intf->session->hostname);
+		intf->session->hostname = NULL;
+	}
+	free(intf->session);
+	intf->session = NULL;
+}
+
 void
 ipmi_cleanup(struct ipmi_intf * intf)
 {
diff --git a/src/plugins/lan/lan.c b/src/plugins/lan/lan.c
index fb1a633..dd90706 100644
--- a/src/plugins/lan/lan.c
+++ b/src/plugins/lan/lan.c
@@ -2005,12 +2005,7 @@ ipmi_lan_close(struct ipmi_intf * intf)
 		close(intf->fd);
 
 	ipmi_req_clear_entries();
-
-	if (intf->session != NULL) {
-		free(intf->session);
-		intf->session = NULL;
-	}
-
+	ipmi_intf_session_cleanup(intf);
 	intf->opened = 0;
 	intf->manufacturer_id = IPMI_OEM_UNKNOWN;
 	intf = NULL;
diff --git a/src/plugins/lanplus/lanplus.c b/src/plugins/lanplus/lanplus.c
index 27b9610..0bff5b2 100644
--- a/src/plugins/lanplus/lanplus.c
+++ b/src/plugins/lanplus/lanplus.c
@@ -3291,12 +3291,7 @@ ipmi_lanplus_close(struct ipmi_intf * intf)
 		close(intf->fd);
 
 	ipmi_req_clear_entries();
-
-	if (intf->session) {
-		free(intf->session);
-		intf->session = NULL;
-	}
-
+	ipmi_intf_session_cleanup(intf);
 	intf->session = NULL;
 	intf->opened = 0;
 	intf->manufacturer_id = IPMI_OEM_UNKNOWN;
@@ -3367,7 +3362,6 @@ ipmi_lanplus_open(struct ipmi_intf * intf)
 		return -1;
 	session = intf->session;
 
-
 	if (!session->port)
 		session->port = IPMI_LANPLUS_PORT;
 	if (!session->privlvl)
diff --git a/src/plugins/serial/serial_basic.c b/src/plugins/serial/serial_basic.c
index 5f4b926..871593f 100644
--- a/src/plugins/serial/serial_basic.c
+++ b/src/plugins/serial/serial_basic.c
@@ -305,12 +305,7 @@ serial_bm_close(struct ipmi_intf * intf)
 		close(intf->fd);
 		intf->fd = -1;
 	}
-
-	if (intf->session) {
-		free(intf->session);
-		intf->session = NULL;
-	}
-
+	ipmi_intf_session_cleanup(intf);
 	intf->opened = 0;
 }
 
diff --git a/src/plugins/serial/serial_terminal.c b/src/plugins/serial/serial_terminal.c
index 41d3753..34c6fc5 100644
--- a/src/plugins/serial/serial_terminal.c
+++ b/src/plugins/serial/serial_terminal.c
@@ -242,12 +242,7 @@ ipmi_serial_term_close(struct ipmi_intf * intf)
 		close(intf->fd);
 		intf->fd = -1;
 	}
-
-	if (intf->session) {
-		free(intf->session);
-		intf->session = NULL;
-	}
-
+	ipmi_intf_session_cleanup(intf);
 	intf->opened = 0;
 }