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Date:      Mon, 3 Jul 2006 14:02:08 GMT
From:      Paolo Pisati <piso@FreeBSD.org>
To:        Perforce Change Reviews <perforce@freebsd.org>
Subject:   PERFORCE change 100498 for review
Message-ID:  <200607031402.k63E28jl094028@repoman.freebsd.org>

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http://perforce.freebsd.org/chv.cgi?CH=100498

Change 100498 by piso@piso_newluxor on 2006/07/03 14:01:59

	Style(9):
	-Sanitize comments
	-use #if 0 ... #endif instead of C comments
	-rename 'err' to 'error'
	-use err() when possible

Affected files ...

.. //depot/projects/soc2005/libalias/sys/netinet/libalias/alias.c#3 edit

Differences ...

==== //depot/projects/soc2005/libalias/sys/netinet/libalias/alias.c#3 (text+ko) ====

@@ -723,7 +723,7 @@
 		struct in_addr original_address;
 		u_short alias_port;
 		int accumulate;
-		int r = 0, err;
+		int r = 0, error;
 		struct alias_data ad = {
 			lnk, 
 			&original_address, 
@@ -731,7 +731,7 @@
 			&alias_port,
 			&ud->uh_sport,
 			&ud->uh_dport,
-			0                  /* maxpacketsize */
+			0                  /* Maxpacketsize. */
 		};
 
 		alias_address = GetAliasAddress(lnk);
@@ -739,9 +739,9 @@
 		alias_port = ud->uh_dport;
 		ud->uh_dport = GetOriginalPort(lnk);
 
-		/* walk out chain */		
-		err = find_handler(IN, UDP, la, pip, &ad);
-		if (err == EHDNOF)
+		/* Walk out chain. */		
+		error = find_handler(IN, UDP, la, pip, &ad);
+		if (error == EHDNOF)
 			;
 
 /* If UDP checksum is not zero, then adjust since destination port */
@@ -774,7 +774,7 @@
 {
 	struct udphdr *ud;
 	struct alias_link *lnk;
-	int err;
+	int error;
 
 /* Return if proxy-only mode is enabled */
 	if (la->packetAliasMode & PKT_ALIAS_PROXY_ONLY)
@@ -790,20 +790,20 @@
 		struct in_addr alias_address;
 		struct alias_data ad = {
 			lnk, 
-			NULL,              /* original address */
+			NULL,              /* Original address. */
 			&alias_address,
 			&alias_port,
 			&ud->uh_sport,
 			&ud->uh_dport,
-			0                  /* maxpacketsize */
+			0                  /* Maxpacketsize. */
 		};
 
 		alias_address = GetAliasAddress(lnk);
 		alias_port = GetAliasPort(lnk);
 
-		/* walk out chain */		
-		err = find_handler(OUT, UDP, la, pip, &ad);
-		if (err == EHDNOF)
+		/* Walk out chain. */		
+		error = find_handler(OUT, UDP, la, pip, &ad);
+		if (error == EHDNOF)
 			;
 
 /* If UDP checksum is not zero, adjust since source port is */
@@ -850,28 +850,27 @@
 		struct in_addr proxy_address;
 		u_short alias_port;
 		u_short proxy_port;
-		int accumulate, err;
+		int accumulate, error;
 
 		/* 
-		 * XXX - the init of MANY vars is a bit below, but 
-		 * aliashandlepptpin seems to need the destination port
-		 * that came within the packet and not the original one
-		 * looks below [*]
+		 * The init of MANY vars is a bit below, but aliashandlepptpin 
+		 * seems to need the destination port that came within the
+		 * packet and not the original one looks below [*].
 		 */
 
 		struct alias_data ad = {
 			lnk, 
-			NULL,              /* original address */
-			NULL,              /* alias address */
-			NULL,              /* alias port */
+			NULL,              /* Original address. */
+			NULL,              /* Alias address. */
+			NULL,              /* Alias port. */
 			&tc->th_sport,
 			&tc->th_dport,
-			0                  /* maxpacketsize */
+			0                  /* Maxpacketsize. */
 		};
 
-		/* walk out chain */		
-		err = find_handler(IN, TCP, la, pip, &ad);
-		if (err == EHDNOF)
+		/* Walk out chain. */		
+		error = find_handler(IN, TCP, la, pip, &ad);
+		if (error == EHDNOF)
 			;
 
 		alias_address = GetAliasAddress(lnk);
@@ -882,26 +881,26 @@
 		proxy_port = GetProxyPort(lnk);
 
 		/* 
-		 * XXX - [*] looks above, if anyone is going to add
-		 * find_handler AFTER this aliashandlepptpin/point, please redo
-		 * alias_data too.
+		 * Look above, if anyone is going to add find_handler AFTER 
+		 * this aliashandlepptpin/point, please redo alias_data too.
 		 * Uncommenting the piece here below should be enough.
 		 */
-
-		/* 		 struct alias_data ad = { */
-		/* 			lnk,  */
-		/* 			&original_address,  */
-		/* 			&alias_address, */
-		/* 			&alias_port, */
-		/* 			&ud->uh_sport, */
-		/* 			&ud->uh_dport, */
-		/* 			0                  /\* maxpacketsize *\/ */
-		/* 		}; */
+#if 0
+				 struct alias_data ad = {
+					lnk,
+					&original_address,
+					&alias_address,
+					&alias_port,
+					&ud->uh_sport,
+					&ud->uh_dport,
+					0                  /* Maxpacketsize. */
+				};
 		
-		/* 		/\* walk out chain *\/		 */
-		/* 		err = find_handler(la, pip, &ad); */
-		/* 		if (err == EHDNOF) */
-		/* 			printf("Protocol handler not found\n"); */
+				/* Walk out chain. */
+				error = find_handler(la, pip, &ad);
+				if (error == EHDNOF)
+					printf("Protocol handler not found\n");
+#endif
 
 /* Adjust TCP checksum since destination port is being unaliased */
 /* and destination port is being altered.                        */
@@ -957,7 +956,7 @@
 static int
 TcpAliasOut(struct libalias *la, struct ip *pip, int maxpacketsize, int create)
 {
-	int proxy_type, err;
+	int proxy_type, error;
 	u_short dest_port;
 	u_short proxy_server_port;
 	struct in_addr dest_address;
@@ -1006,7 +1005,7 @@
 		int accumulate;
 		struct alias_data ad = {
 			lnk, 
-			NULL, /* original address */
+			NULL, /* Original address. */
 			&alias_address,
 			&alias_port,
 			&tc->th_sport,
@@ -1030,9 +1029,9 @@
 /* Monitor TCP connection state */
 		TcpMonitorOut(pip, lnk);
 		
-		/* walk out chain */		
-		err = find_handler(OUT, TCP, la, pip, &ad);
-		if (err == EHDNOF)
+		/* Walk out chain. */		
+		error = find_handler(OUT, TCP, la, pip, &ad);
+		if (error == EHDNOF)
 			;
 
 /* Adjust TCP checksum since source port is being aliased */
@@ -1235,7 +1234,7 @@
 			iresult = TcpAliasIn(la, pip);
 			break;
  		case IPPROTO_GRE: {
-			int err;
+			int error;
 			struct alias_data ad = {
 				NULL, 
 				NULL, 
@@ -1246,11 +1245,11 @@
 				0                  
 			};
 			
-			/* walk out chain */		
-			err = find_handler(IN, IP, la, pip, &ad);
-			if (err == EHDNOF)
+			/* Walk out chain. */		
+			error = find_handler(IN, IP, la, pip, &ad);
+			if (error == EHDNOF)
 				;
-			if (err ==  OK)
+			if (error ==  OK)
 				iresult = PKT_ALIAS_OK;
 			else
 				iresult = ProtoAliasIn(la, pip);
@@ -1363,7 +1362,7 @@
 			iresult = TcpAliasOut(la, pip, maxpacketsize, create);
 			break;
  		case IPPROTO_GRE: {
-			int err;
+			int error;
 			struct alias_data ad = {
 				NULL, 
 				NULL, 
@@ -1373,11 +1372,11 @@
 				NULL,
 				0                  
 			};
-			/* walk out chain */		
-			err = find_handler(OUT, IP, la, pip, &ad);
-			if (err == EHDNOF)
+			/* Walk out chain. */		
+			error = find_handler(OUT, IP, la, pip, &ad);
+			if (error == EHDNOF)
 				;
-			if (err == OK)
+			if (error == OK)
  				iresult = PKT_ALIAS_OK;
  			else
  				iresult = ProtoAliasOut(la, pip, create);
@@ -1511,12 +1510,8 @@
 	int len;
 
 	fd = fopen(conf, "r");
-	if (fd == NULL) {
-		strcpy(buf, "cannot open config file ");
-		strcat(buf, conf);
-		perror(buf);
-		exit(-1);
-	}
+	if (fd == NULL)
+		err(1, "fopen(%s)", conf);
 
 	LibAliasUnLoadAllModule();
 
@@ -1541,6 +1536,8 @@
         const char *error;
 	moduledata_t *p;
 
+	// XXX - mixing my own error code and errno.h is really
+	// a bad idea, convert everything to use errno.h
         handle = dlopen (path, RTLD_LAZY);
         if (!handle) {
             fputs (dlerror(), stderr);
@@ -1579,7 +1576,7 @@
 	struct dll *t;
 	struct proto_handler *p;
 
-	/* unload all modules then reload everything */
+	/* Unload all modules then reload everything. */
 	while ((p = first_handler()) != NULL) {	
 		detach_handler(p);
 	}



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