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authorLars Hjemli <hjemli@gmail.com>2006-12-28 00:54:43 +0000
committerLars Hjemli <hjemli@gmail.com>2006-12-28 00:54:43 +0000
commit27cd3b2a700e1cc46cd0393ddea48c07b62ee3a6 (patch)
tree041158893604fa4127bc0df31a2c22f8d48b852f
parentc43f1246cb759eb811ab0ebef0613b86dda99581 (diff)
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Test for NULL-pointers in html_txt() and friends
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
-rw-r--r--html.c7
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
@@ -45,7 +45,7 @@ void htmlf(const char *format, ...)
void html_txt(char *txt)
{
char *t = txt;
- while(*t){
+ while(t && *t){
int c = *t;
if (c=='<' || c=='>' || c=='&') {
*t = '\0';
@@ -68,7 +68,7 @@ void html_txt(char *txt)
void html_ntxt(int len, char *txt)
{
char *t = txt;
- while(*t && len--){
+ while(t && *t && len--){
int c = *t;
if (c=='<' || c=='>' || c=='&') {
*t = '\0';
@@ -97,7 +97,7 @@ void html_ntxt(int len, char *txt)
void html_attr(char *txt)
{
char *t = txt;
- while(*t){
+ while(t && *t){
int c = *t;
if (c=='<' || c=='>' || c=='\'') {
*t = '\0';
@@ -155,4 +155,3 @@ void html_filemode(unsigned short mode)
html_fileperm(mode >> 3);
html_fileperm(mode);
}
-