1 files changed, 20 insertions, 19 deletions

diff --git a/procps/top.c b/procps/top.c
index 38211b345..8e5767e41 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -1,7 +1,7 @@
 /*
  * A tiny 'top' utility.
  *
- * This is written specifically for the linux 2.4 /proc/<PID>/status
+ * This is written specifically for the linux /proc/<PID>/status
  * file format, but it checks that the file actually conforms to the
  * format that this utility expects.
  
@@ -151,19 +151,21 @@ static void display_status(int count, const status_t *s)
 /* checks if given 'buf' for process starts with 'id' + ':' + TAB
  * and stores rest of the buf to 'store' with max size 'size'
  */
-static void process_status(const char *buf, const char *id, char *store, size_t size)
+static int process_status(const char *buf, const char *id, char *store, size_t size)
 {
         int len, i;
         
-        if (!store) {
-                /* ignoring this field */
-                return;
-        }
-
         /* check status field name */
         len = strlen(id);
         if (strncmp(buf, id, len) != 0) {
-                error_msg_and_die("ERROR status: line doesn't start with '%s' in:\n%s\n", id, buf);
+                if(store)
+                        error_msg_and_die("ERROR status: line doesn't start with '%s' in:\n%s\n", id, buf);
+                else
+                        return 0;
+        }
+        if (!store) {
+                /* ignoring this field */
+                return 1;
         }
         buf += len;
         
@@ -193,9 +195,9 @@ static void process_status(const char *buf, const char *id, char *store, size_t
                 *store++ = *buf++;
         }
         *store = '\0';
+        return 1;
 }
 
-
 /* read process statuses */
 static void read_status(int num, status_t *s)
 {
@@ -219,20 +221,20 @@ static void read_status(int num, status_t *s)
                 fgets(buf, sizeof(buf), fp);
                 process_status(buf, "State", s->state, sizeof(s->state));
                 fgets(buf, sizeof(buf), fp);
-                process_status(buf, "Tgid", NULL, 0);
-                fgets(buf, sizeof(buf), fp);
+                if(process_status(buf, "Tgid", NULL, 0))
+                        fgets(buf, sizeof(buf), fp);
                 process_status(buf, "Pid", NULL, 0);
                 fgets(buf, sizeof(buf), fp);
                 process_status(buf, "PPid", s->ppid, sizeof(s->ppid));
                 fgets(buf, sizeof(buf), fp);
-                process_status(buf, "TracePid", NULL, 0);
-                fgets(buf, sizeof(buf), fp);
+                if(process_status(buf, "TracerPid", NULL, 0))
+                        fgets(buf, sizeof(buf), fp);
                 process_status(buf, "Uid", s->uid, sizeof(s->uid));
                 fgets(buf, sizeof(buf), fp);
                 process_status(buf, "Gid", NULL, 0);
                 fgets(buf, sizeof(buf), fp);
-                process_status(buf, "FDSize", NULL, 0);
-                fgets(buf, sizeof(buf), fp);
+                if(process_status(buf, "FDSize", NULL, 0))
+                        fgets(buf, sizeof(buf), fp);
                 process_status(buf, "Groups", NULL, 0);
                 fgets(buf, sizeof(buf), fp);
                 /* only user space processes have command line
@@ -342,7 +344,6 @@ static int num_sort(const void *a, const void *b)
         }
 }
 
-
 int top_main(int argc, char **argv)
 {
         status_t *statuslist;
@@ -353,8 +354,8 @@ int top_main(int argc, char **argv)
 #endif
         /* Default update rate is 5 seconds */
         interval = 5;
-        /* Default to 25 lines */
-        lines = 25;
+        /* Default to 25 lines - 5 lines for status */
+        lines = 25 - 5;
 
         /* do normal option parsing */
         while ((opt = getopt(argc, argv, "d:")) > 0) {
@@ -370,7 +371,7 @@ int top_main(int argc, char **argv)
 #if defined CONFIG_FEATURE_AUTOWIDTH && defined CONFIG_FEATURE_USE_TERMIOS
         ioctl(fileno(stdout), TIOCGWINSZ, &win);
         if (win.ws_row > 4)
-            lines = win.ws_row - 6;
+            lines = win.ws_row - 5;
 #endif
         
         /* change to proc */