1 files changed, 3 insertions, 4 deletions

diff --git a/html.c b/html.c
index 957b326..3a5d28d 100644
--- a/html.c
+++ b/html.c
@@ -47,3 +47,3 @@ void html_txt(char *txt)
         char *t = txt;
-        while(*t){
+        while(t && *t){
                 int c = *t;
@@ -70,3 +70,3 @@ void html_ntxt(int len, char *txt)
         char *t = txt;
-        while(*t && len--){
+        while(t && *t && len--){
                 int c = *t;
@@ -99,3 +99,3 @@ void html_attr(char *txt)
         char *t = txt;
-        while(*t){
+        while(t && *t){
                 int c = *t;
@@ -157,2 +157 @@ void html_filemode(unsigned short mode)
 }
-