diff -Naur a/src/protocol/gopher/gopher.c b/src/protocol/gopher/gopher.c
--- a/src/protocol/gopher/gopher.c 2020-01-09 09:19:54.983674477 +0000
+++ b/src/protocol/gopher/gopher.c 2020-01-09 09:21:58.885286474 +0000
@@ -663,6 +663,25 @@
return line[0] == '.' && !line[1] ? NULL : line;
}
+/* substring replacement */
+static void
+str_replace(char * in_string, char * s_string, char * r_string)
+{
+ /* max == replace all characters */
+ char temp[strlen(in_string) * (strlen(r_string) - strlen(s_string))];
+ char * pos;
+
+ if (!(pos = strstr(in_string, s_string)))
+ return;
+
+ strncpy(temp, in_string, pos - in_string);
+ temp[pos - in_string] = 0;
+ sprintf(temp + (pos - in_string), "%s%s", r_string, pos + strlen(s_string));
+ in_string[0] = 0;
+ strcpy(in_string, temp);
+ return str_replace(in_string, s_string, r_string);
+}
+
/* Parse a Gopher Menu document */
static struct connection_state
read_gopher_directory_data(struct connection *conn, struct read_buffer *rb)
@@ -682,6 +701,17 @@
return connection_state(S_OUT_OF_MEM);
}
+ /* Lines with characters that need to be converted to html */
+ if (strstr(rb->data, "<")) {
+ str_replace(rb->data, "<", "<");
+ }
+ if (strstr(rb->data, ">")) {
+ str_replace(rb->data, ">", ">");
+ }
+ if (strstr(rb->data, "\"")) {
+ str_replace(rb->data, "\"", """);
+ }
+
while ((end = get_gopher_line_end(rb->data, rb->length))) {
unsigned char *line = check_gopher_last_line(rb->data, end);
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