Fix bug in $pid_openfiles

diff --git a/src/proc.c b/src/proc.c
index 3bdef72..6d4b3bc 100644 (file)
--- a/src/proc.c
+++ b/src/proc.c
@@ -282,22 +282,26 @@ void print_pid_openfiles(struct text_object *obj, char *p, int p_max_size) {
        struct ll_string* files_back = NULL;
 
        dir = opendir(obj->data.s);
-       while ((entry = readdir(dir))) {
-               if(entry->d_name[0] != '.') {
-                       snprintf(buf, p_max_size, "%s/%s", obj->data.s, entry->d_name);
-                       length = readlink(buf, buf, p_max_size);
-                       buf[length] = 0;
-                       if(inlist(files_front, buf) == 0) {
-                               files_back = addnode(files_back, buf);
-                               snprintf(p + totallength, p_max_size - totallength, "%s; " , buf);
-                               totallength += length + strlen("; ");
-                       }
-                       if(files_front == NULL) {
-                               files_front = files_back;
+       if(dir != NULL) {
+               while ((entry = readdir(dir))) {
+                       if(entry->d_name[0] != '.') {
+                               snprintf(buf, p_max_size, "%s/%s", obj->data.s, entry->d_name);
+                               length = readlink(buf, buf, p_max_size);
+                               buf[length] = 0;
+                               if(inlist(files_front, buf) == 0) {
+                                       files_back = addnode(files_back, buf);
+                                       snprintf(p + totallength, p_max_size - totallength, "%s; " , buf);
+                                       totallength += length + strlen("; ");
+                               }
+                               if(files_front == NULL) {
+                                       files_front = files_back;
+                               }
                        }
                }
+               closedir(dir);
+               freelist(files_front);
+               p[totallength - strlen("; ")] = 0;
+       } else {
+               p[0] = 0;
        }
-       closedir(dir);
-       freelist(files_front);
-       p[totallength - strlen("; ")] = 0;
 }