From 2aa121fd6ce6a35b61b3312234c0315ad1e59f48 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@gmx.de>
Date: Tue, 3 Apr 2012 19:03:44 +0200
Subject: [PATCH] mothra: <base> tag, nstrcpy

---
 sys/src/cmd/mothra/getpix.c |  2 +-
 sys/src/cmd/mothra/mothra.c | 16 +++++++++-------
 sys/src/cmd/mothra/mothra.h |  1 +
 sys/src/cmd/mothra/rdhtml.c | 24 ++++++++++++++----------
 4 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/sys/src/cmd/mothra/getpix.c b/sys/src/cmd/mothra/getpix.c
index 7fd58254c..5782b5fc8 100644
--- a/sys/src/cmd/mothra/getpix.c
+++ b/sys/src/cmd/mothra/getpix.c
@@ -76,7 +76,7 @@ void getimage(Rtext *t, Www *w){
 	}
 	close(fd);
 	p = emallocz(sizeof(Pix), 1);
-	strncpy(p->name, ap->image, sizeof(p->name));
+	nstrcpy(p->name, ap->image, sizeof(p->name));
 	p->b=b;
 	p->width=ap->width;
 	p->height=ap->height;
diff --git a/sys/src/cmd/mothra/mothra.c b/sys/src/cmd/mothra/mothra.c
index 722feaefe..cf915c8ef 100644
--- a/sys/src/cmd/mothra/mothra.c
+++ b/sys/src/cmd/mothra/mothra.c
@@ -473,6 +473,10 @@ void *emallocz(int n, int z){
 	setmalloctag(v, getcallerpc(&n));
 	return v;
 }
+void nstrcpy(char *to, char *from, int len){
+	strncpy(to, from, len);
+	to[len-1] = 0;
+}
 
 char *genwww(Panel *, int index){
 	static char buf[1024];
@@ -798,7 +802,7 @@ int fileurlopen(Url *url){
 	url->tag[0] = 0;
 	if(x = strrchr(url->fullname, '#')){
 		*x++ = 0;
-		strncpy(url->tag, x, sizeof(url->tag));
+		nstrcpy(url->tag, x, sizeof(url->tag));
 	}
 	fd = open(cleanname(url->fullname), OREAD);
 	if(fd < 0)
@@ -905,9 +909,7 @@ char*
 urlstr(Url *url){
 	if(url->fullname[0])
 		return url->fullname;
-	if(url->reltext[0])
-		return url->reltext;
-	return nil;
+	return url->reltext;
 }
 void selurl(char *urlname){
 	static Url url;
@@ -916,8 +918,8 @@ void selurl(char *urlname){
 	message("selected: %s", urlstr(selection));
 }
 void seturl(Url *url, char *urlname, char *base){
-	strncpy(url->reltext, urlname, sizeof(url->reltext));
-	strncpy(url->basename, base, sizeof(url->basename));
+	nstrcpy(url->reltext, urlname, sizeof(url->reltext));
+	nstrcpy(url->basename, base, sizeof(url->basename));
 	url->fullname[0] = 0;
 	url->tag[0] = 0;
 	url->map = 0;
@@ -1120,7 +1122,7 @@ void paste(Panel *p){
 	int n, len, fd;
 	if((fd=open("/dev/snarf", OREAD))<0)
 		return;
-	strncpy(buf, plentryval(p), sizeof(buf));
+	nstrcpy(buf, plentryval(p), sizeof(buf));
 	len=strlen(buf);
 	n=read(fd, buf+len, sizeof(buf)-len-1);
 	if(n>0){
diff --git a/sys/src/cmd/mothra/mothra.h b/sys/src/cmd/mothra/mothra.h
index 26b24dc63..0531d826e 100644
--- a/sys/src/cmd/mothra/mothra.h
+++ b/sys/src/cmd/mothra/mothra.h
@@ -93,6 +93,7 @@ int urlopen(Url *, int, char *);
 void getfonts(void);
 void *emalloc(int);
 void *emallocz(int, int);
+void nstrcpy(char *to, char *from, int len);
 void freeform(void *p);
 void message(char *, ...);
 int snooptype(int fd);
diff --git a/sys/src/cmd/mothra/rdhtml.c b/sys/src/cmd/mothra/rdhtml.c
index 67dcf3796..7f2693560 100644
--- a/sys/src/cmd/mothra/rdhtml.c
+++ b/sys/src/cmd/mothra/rdhtml.c
@@ -613,7 +613,7 @@ void plrdplain(char *name, int fd, Www *dst){
 	g.etext=g.text+NTITLE-1;
 	g.spacc=0;
 	g.form=0;
-	strncpy(g.text, name, NTITLE);
+	nstrcpy(g.text, name, NTITLE);
 	plaintext(&g);
 	finish(dst);
 }
@@ -675,10 +675,10 @@ void plrdhtml(char *name, int fd, Www *dst){
 		if(str=pl_getattr(g.attr, "id")){
 			char swap[NNAME];
 
-			strncpy(swap, g.state->name, sizeof(swap));
-			strncpy(g.state->name, str, sizeof(g.state->name));
+			nstrcpy(swap, g.state->name, sizeof(swap));
+			nstrcpy(g.state->name, str, sizeof(g.state->name));
 			pl_htmloutput(&g, 0, "", 0);
-			strncpy(g.state->name, swap, sizeof(g.state->name));
+			nstrcpy(g.state->name, swap, sizeof(g.state->name));
 		}
 		switch(g.tag){
 		default:
@@ -689,7 +689,7 @@ void plrdhtml(char *name, int fd, Www *dst){
 			break;
 		case Tag_img:
 			if(str=pl_getattr(g.attr, "src"))
-				strncpy(g.state->image, str, sizeof(g.state->image));
+				nstrcpy(g.state->image, str, sizeof(g.state->image));
 			g.state->ismap=pl_hasattr(g.attr, "ismap");
 			if(str=pl_getattr(g.attr, "width"))
 				g.state->width = strtolength(&g, HORIZ, str);
@@ -725,11 +725,15 @@ void plrdhtml(char *name, int fd, Www *dst){
 		case Tag_td:
 			g.spacc++;
 			break;
+		case Tag_base:
+			if(str=pl_getattr(g.attr, "href"))
+				nstrcpy(g.dst->url->fullname, str, sizeof(g.dst->url->fullname));
+			break;
 		case Tag_a:
 			if(str=pl_getattr(g.attr, "href"))
-				strncpy(g.state->link, str, sizeof(g.state->link));
+				nstrcpy(g.state->link, str, sizeof(g.state->link));
 			if(str=pl_getattr(g.attr, "name")){
-				strncpy(g.state->name, str, sizeof(g.state->name));
+				nstrcpy(g.state->name, str, sizeof(g.state->name));
 				pl_htmloutput(&g, 0, "", 0);
 			}
 			break;
@@ -757,9 +761,9 @@ void plrdhtml(char *name, int fd, Www *dst){
 		case Tag_frame:
 		case Tag_iframe:
 			if(str=pl_getattr(g.attr, "src"))
-				strncpy(g.state->link, str, sizeof(g.state->link));
+				nstrcpy(g.state->link, str, sizeof(g.state->link));
 			if(str=pl_getattr(g.attr, "name"))
-				strncpy(g.state->name, str, sizeof(g.state->name));
+				nstrcpy(g.state->name, str, sizeof(g.state->name));
 			else
 				str = g.state->link;
 			pl_htmloutput(&g, 0, tag[g.tag].name, 0);
@@ -1060,7 +1064,7 @@ void plrdhtml(char *name, int fd, Www *dst){
 		break;
 	case TEXT:
 		if(g.state->link[0]==0 && (str = linkify(g.token))){
-			strncpy(g.state->link, str, sizeof(g.state->link));
+			nstrcpy(g.state->link, str, sizeof(g.state->link));
 			pl_htmloutput(&g, g.nsp, g.token, 0);
 			g.state->link[0] = 0;
 			free(str);