html: make all strings 'const char *'

None of the html_* functions modify their argument, so they can all be
'const char *' instead of a simple 'char *'.  This removes the need to
cast (or copy) when trying to print a const string.

Signed-off-by: Mark Lodato <lodatom@gmail.com>

2 files changed, 26 insertions, 26 deletions

diff --git a/html.c b/html.c
index 66ba65d..4033200 100644
--- a/html.c
+++ b/html.c
@@ -65,5 +65,5 @@ void html_status(int code, const char *msg, int more_headers)
 
-void html_txt(char *txt)
+void html_txt(const char *txt)
 {
-	char *t = txt;
+	const char *t = txt;
 	while(t && *t){
@@ -86,5 +86,5 @@ void html_txt(char *txt)
 
-void html_ntxt(int len, char *txt)
+void html_ntxt(int len, const char *txt)
 {
-	char *t = txt;
+	const char *t = txt;
 	while(t && *t && len--){
@@ -109,5 +109,5 @@ void html_ntxt(int len, char *txt)
 
-void html_attr(char *txt)
+void html_attr(const char *txt)
 {
-	char *t = txt;
+	const char *t = txt;
 	while(t && *t){
@@ -132,5 +132,5 @@ void html_attr(char *txt)
 
-void html_url_path(char *txt)
+void html_url_path(const char *txt)
 {
-	char *t = txt;
+	const char *t = txt;
 	while(t && *t){
@@ -148,5 +148,5 @@ void html_url_path(char *txt)
 
-void html_url_arg(char *txt)
+void html_url_arg(const char *txt)
 {
-	char *t = txt;
+	const char *t = txt;
 	while(t && *t){
@@ -164,3 +164,3 @@ void html_url_arg(char *txt)
 
-void html_hidden(char *name, char *value)
+void html_hidden(const char *name, const char *value)
 {
@@ -173,3 +173,3 @@ void html_hidden(char *name, char *value)
 
-void html_option(char *value, char *text, char *selected_value)
+void html_option(const char *value, const char *text, const char *selected_value)
 {
@@ -185,3 +185,3 @@ void html_option(char *value, char *text, char *selected_value)
 
-void html_link_open(char *url, char *title, char *class)
+void html_link_open(const char *url, const char *title, const char *class)
 {
@@ -259,10 +259,10 @@ char *convert_query_hexchar(char *txt)
 
-int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value))
+int http_parse_querystring(const char *txt_, void (*fn)(const char *name, const char *value))
 {
-	char *t, *value = NULL, c;
+	char *t, *txt, *value = NULL, c;
 
-	if (!txt)
+	if (!txt_)
 		return 0;
 
-	t = txt = strdup(txt);
+	t = txt = strdup(txt_);
 	if (t == NULL) {
diff --git a/html.h b/html.h
index a55d4b2..16d55ec 100644
--- a/html.h
+++ b/html.h
@@ -9,10 +9,10 @@ extern void htmlf(const char *format,...);
 extern void html_status(int code, const char *msg, int more_headers);
-extern void html_txt(char *txt);
-extern void html_ntxt(int len, char *txt);
-extern void html_attr(char *txt);
-extern void html_url_path(char *txt);
-extern void html_url_arg(char *txt);
-extern void html_hidden(char *name, char *value);
-extern void html_option(char *value, char *text, char *selected_value);
-extern void html_link_open(char *url, char *title, char *class);
+extern void html_txt(const char *txt);
+extern void html_ntxt(int len, const char *txt);
+extern void html_attr(const char *txt);
+extern void html_url_path(const char *txt);
+extern void html_url_arg(const char *txt);
+extern void html_hidden(const char *name, const char *value);
+extern void html_option(const char *value, const char *text, const char *selected_value);
+extern void html_link_open(const char *url, const char *title, const char *class);
 extern void html_link_close(void);
@@ -21,3 +21,3 @@ extern int html_include(const char *filename);
 
-extern int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value));
+extern int http_parse_querystring(const char *txt, void (*fn)(const char *name, const char *value));