Dont smash aoview_monitor_parse input buffer

[fw/altos] / aoview / aoview_monitor.c

diff --git a/aoview/aoview_monitor.c b/aoview/aoview_monitor.c
index f7f646ae817b7792487607e585f40f70244e1753..5810be5b91fb006117ac57f048421685a1a86930 100644 (file)
--- a/aoview/aoview_monitor.c
+++ b/aoview/aoview_monitor.c
@@ -68,12 +68,17 @@ aoview_parse_pos(double *target, char *source)
 static struct aostate  state;
 
 gboolean
-aoview_monitor_parse(char *line)
+aoview_monitor_parse(const char *input_line)
 {
        char *saveptr;
        char *words[64];
        int nword;
+       char line_buf[8192], *line;
 
+       /* avoid smashing our input parameter */
+       strncpy (line_buf, input_line, sizeof (line_buf)-1);
+       line_buf[sizeof(line_buf) - 1] = '\0';
+       line = line_buf;
        for (nword = 0; nword < 64; nword++) {
                words[nword] = strtok_r(line, " \t\n", &saveptr);
                line = NULL;