File 0026-iscsiMib.c-fixes-for-strict-aliasing.patch of Package lio-utils

From da77229050bb604c916ffd567b58e0fed236748b Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Thu, 17 Apr 2014 12:03:50 +0200
Subject: iscsiMib.c: fixes for strict aliasing

gcc is becoming more and more picky about how valid C-code should
look like, so fixup iscsiMib.c to eliminate the strict aliasing
warnings.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 mib-modules/iscsiMib.c | 46 ++++++++++++++++++++--------------------------
 1 file changed, 20 insertions(+), 26 deletions(-)

diff --git a/mib-modules/iscsiMib.c b/mib-modules/iscsiMib.c
index e2e1ed4..5e5ba51 100644
--- a/mib-modules/iscsiMib.c
+++ b/mib-modules/iscsiMib.c
@@ -809,8 +809,7 @@ iscsiPortalAttributes_load(netsnmp_cache *cache, void *vmagic)
     while (line == fgets(line, sizeof(line), fp)) {
         memset(&tmp, 0, sizeof(tmp));
         if (sscanf(line, ISCSI_PORTAL_ATTR_LINE, &tmp.iscsiInstIndex,
-                   &tmp.iscsiPortalIndex, roles, addrType,
-                   (u_int *)tmp.iscsiPortalAddr, proto, 
+                   &tmp.iscsiPortalIndex, roles, addrType, &addr, proto,
                    &tmp.iscsiPortalMaxRecvDataSegLength, hdrDigest,
                    dataDigest, rcvMarker) != 10)
             continue;
@@ -819,8 +818,7 @@ iscsiPortalAttributes_load(netsnmp_cache *cache, void *vmagic)
         tmp.iscsiPortalRoles = NODE_ROLE_TARGET;
         if (!strcmp(addrType, "ipv4")) {
             tmp.iscsiPortalAddrType = INET_ADDR_TYPE_IPV4;
-            addr = htonl(*(uint32_t *)&tmp.iscsiPortalAddr);
-            *(uint32_t *)tmp.iscsiPortalAddr = addr;
+            *tmp.iscsiPortalAddr = htonl(addr);
         }
 
         if (!strcmp(proto, "TCP"))
@@ -1733,42 +1731,41 @@ iscsiTargetAttributes_load(unsigned int clientreg, void *clientarg)
         //snmp_log(LOG_DEBUG, "snmpd: cannot open %s\n", PROC_TARGET_ATTR);
         return;
     }
- 
+
     while (line == fgets(line, sizeof(line), fp)) {
         memset(&tmp, 0, sizeof(tmp));
         if (sscanf(line, ISCSI_TARGET_ATTR_LINE, &tmp.iscsiInstIndex,
                    &tmp.iscsiNodeIndex, &tmp.iscsiTgtLoginFailures,
                    &tmp.iscsiTgtLastFailureTime, &failType,
                    tmp.iscsiTgtLastIntrFailureName, addrType,
-                   (u_int *)tmp.iscsiTgtLastIntrFailureAddr) != 8)
+                   &addr) != 8)
             continue;
 
         memcpy(tmp.iscsiTgtLastFailureType, iscsiTgtLoginStats_oid,
-               sizeof(iscsiTgtLoginStats_oid)); 
-        tmp.iscsiTgtLastFailureType[OID_LENGTH(iscsiTgtLoginStats_oid)] = 
-                                                                       failType;
+               sizeof(iscsiTgtLoginStats_oid));
+        tmp.iscsiTgtLastFailureType[OID_LENGTH(iscsiTgtLoginStats_oid)] =
+            failType;
         tmp.iscsiTgtLastFailureType_len = OID_LENGTH(iscsiTgtLoginStats_oid)+1;
 
         if (!strcmp(addrType, "ipv4")) {
             tmp.iscsiTgtLastIntrFailureAddrType = INET_ADDR_TYPE_IPV4;
-            addr = htonl(*(uint32_t *)tmp.iscsiTgtLastIntrFailureAddr);
-            *(uint32_t *)tmp.iscsiTgtLastIntrFailureAddr = addr;
+            *tmp.iscsiTgtLastIntrFailureAddr = htonl(addr);
         }
 
         /* Send a trap on failures */
-        if ((tmp.iscsiInstIndex <= ISCSI_NUM_INSTANCES) && 
+        if ((tmp.iscsiInstIndex <= ISCSI_NUM_INSTANCES) &&
             (tmp.iscsiNodeIndex <= ISCSI_NUM_NODES) &&
-            (tmp.iscsiTgtLoginFailures > 
-                        numFailures[tmp.iscsiInstIndex][tmp.iscsiNodeIndex])) {
+            (tmp.iscsiTgtLoginFailures >
+             numFailures[tmp.iscsiInstIndex][tmp.iscsiNodeIndex])) {
             if ((clientreg) && ((failType == ISCSI_LOGIN_FAIL_AUTHORIZE) ||
                 (failType == ISCSI_LOGIN_FAIL_AUTHENTICATE) ||
-                (failType == ISCSI_LOGIN_FAIL_NEGOTIATE))) 
+                                (failType == ISCSI_LOGIN_FAIL_NEGOTIATE)))
                 send_iscsiTgtLoginFailure_trap(&tmp);
         }
         /* Update the counter to the current value from the stack */
-        if (numFailures[tmp.iscsiInstIndex][tmp.iscsiNodeIndex] != 
+        if (numFailures[tmp.iscsiInstIndex][tmp.iscsiNodeIndex] !=
                                                    tmp.iscsiTgtLoginFailures)
-            numFailures[tmp.iscsiInstIndex][tmp.iscsiNodeIndex] = 
+            numFailures[tmp.iscsiInstIndex][tmp.iscsiNodeIndex] =
                                                    tmp.iscsiTgtLoginFailures;
 
         entry = SNMP_MALLOC_TYPEDEF(struct iscsiTargetAttributes_entry);
@@ -3572,7 +3569,7 @@ iscsiCxnAttributes_load(netsnmp_cache *cache, void *vmagic)
     char dataDgst[16];
     char rcvMarker[4];
     char sendMarker[4];
-    uint32_t addr;
+    uint32_t local_addr, remote_addr;
     struct iscsiCxnAttributes_entry tmp, *entry;
 
     if (iscsiCxnAttributes_head)
@@ -3582,14 +3579,14 @@ iscsiCxnAttributes_load(netsnmp_cache *cache, void *vmagic)
         //snmp_log(LOG_DEBUG, "snmpd: cannot open %s\n", PROC_CXN_ATTR);
         return -1;
     }
- 
+
     while (line == fgets(line, sizeof(line), fp)) {
         memset(&tmp, 0, sizeof(tmp));
         if (sscanf(line, ISCSI_CXN_ATTR_LINE, &tmp.iscsiInstIndex,
                    &tmp.iscsiSsnNodeIndex, &tmp.iscsiSsnIndex,
                    &tmp.iscsiCxnIndex, &tmp.iscsiCxnCid, cxnState, addrType,
-                   (u_int *)tmp.iscsiCxnLocalAddr, proto,
-                   &tmp.iscsiCxnLocalPort, (u_int *)tmp.iscsiCxnRemoteAddr,
+                   &local_addr, proto,
+                   &tmp.iscsiCxnLocalPort, &remote_addr,
                    &tmp.iscsiCxnRemotePort, &tmp.iscsiCxnMaxRecvDataSegLength,
                    &tmp.iscsiCxnMaxXmitDataSegLength, hdrDgst, dataDgst,
                    rcvMarker, sendMarker, &tmp.iscsiCxnVersionActive) != 19)
@@ -3605,11 +3602,8 @@ iscsiCxnAttributes_load(netsnmp_cache *cache, void *vmagic)
         if (!strcmp(addrType, "ipv4")) {
             tmp.iscsiCxnAddrType = INET_ADDR_TYPE_IPV4;
 
-            addr = htonl(*(uint32_t *)tmp.iscsiCxnLocalAddr);
-            *(uint32_t *)tmp.iscsiCxnLocalAddr = addr;
-
-            addr = htonl(*(uint32_t *)tmp.iscsiCxnRemoteAddr);
-            *(uint32_t *)tmp.iscsiCxnRemoteAddr = addr;
+            *tmp.iscsiCxnLocalAddr = htonl(local_addr);
+            *tmp.iscsiCxnRemoteAddr = htonl(remote_addr);
         }
 
         if (!strcmp(proto, "TCP"))
-- 
1.8.1.4