top: fix "top -d 1" (bug 5144)

1 files changed, 13 insertions, 4 deletions

diff --git a/procps/top.c b/procps/top.c
index b481d395e..908ae8151 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -894,7 +894,7 @@ int top_main(int argc UNUSED_PARAM, char **argv)
         unsigned lines, col;
         int lines_rem;
         unsigned interval;
-        char *sinterval;
+        char *str_interval, *str_iterations;
         SKIP_FEATURE_TOPMEM(const) unsigned scan_mask = TOP_MASK;
 #if ENABLE_FEATURE_USE_TERMIOS
         struct termios new_settings;
@@ -917,10 +917,19 @@ int top_main(int argc UNUSED_PARAM, char **argv)
 #endif
 
         /* all args are options; -n NUM */
-        opt_complementary = "-:n+";
-        if (getopt32(argv, "d:n:b", &sinterval, &iterations) & OPT_d) {
+        opt_complementary = "-";
+        col = getopt32(argv, "d:n:b", &str_interval, &str_iterations);
+        if (col & OPT_d) {
+                /* work around for "-d 1" -> "-d -1" done by getopt32 */
+                if (str_interval[0] == '-')
+                        str_interval++;
                 /* Need to limit it to not overflow poll timeout */
-                interval = xatou16(sinterval); /* -d */
+                interval = xatou16(str_interval);
+        }
+        if (col & OPT_n) {
+                if (str_iterations[0] == '-')
+                        str_iterations++;
+                iterations = xatou(str_iterations);
         }
 
         /* change to /proc */