resctl: support parsing priority values larger than 2^32

1 files changed, 5 insertions, 2 deletions

diff --git a/bin/resctl.c b/bin/resctl.c
index 712d2e3..52cf6c0 100644
--- a/bin/resctl.c
+++ b/bin/resctl.c
@@ -4,6 +4,7 @@
 #include <unistd.h>
 #include <limits.h>
 #include <signal.h>
+#include <errno.h>
 
 #include <sched.h>
 
@@ -114,6 +115,7 @@ static struct lt_interval* parse_td_intervals(int argc, char** argv,
 int main(int argc, char** argv)
 {
         int ret, opt;
+        char* parsed;
         double budget_ms, period_ms, offset_ms, deadline_ms, major_cycle_ms;
         int create_new = 0;
         int attach_pid = 0;
@@ -155,8 +157,9 @@ int main(int argc, char** argv)
                         break;
 
                 case 'q':
-                        config.priority = atoi(optarg);
-                        if (!config.priority)
+                        errno = 0;
+                        config.priority = strtoull(optarg, &parsed, 0);
+                        if (!config.priority || errno || *parsed != '\0')
                                 usage("-q: invalid priority");
                         break;
                 case 'c':