commit c4972d4721b7c8c3e796ad8e8b3c5bfe3ceff5ae
author weizihan <weizihan@xiaomi.com> Tue Apr 19 20:22:59 2022 +0800
committer Xiang Xiao <xiaoxiang781216@gmail.com> Thu Aug 18 18:02:01 2022 +0800
tree c5fd3c1c714f1813bef236f087c9e650d8cbf51b
parent 8fe295de327dccb1601882a0760261b65e92e1c2

apps: Fix bug by calling getrandom

Signed-off-by: weizihan <weizihan@xiaomi.com>

fsutils/mkgpt/mkgpt.c

diff --git a/fsutils/mkgpt/mkgpt.c b/fsutils/mkgpt/mkgpt.c
index 5b2c3d3..953b7fd 100644
--- a/fsutils/mkgpt/mkgpt.c
+++ b/fsutils/mkgpt/mkgpt.c
@@ -31,6 +31,7 @@
 #include <unistd.h>
 #include <string.h>
 
+#include <sys/random.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 
@@ -128,12 +129,12 @@
 
 static void get_uuid(FAR uint8_t *uuid)
 {
-  int fd;
-  fd = open("/dev/urandom", O_RDONLY);
-  if (fd > 0)
+  /* call getrandom to read  /dev/urandom */
+
+  if (getrandom(uuid, 16, 0) < 0)
     {
-      read(fd, uuid, 16);
-      close(fd);
+      fprintf(stderr, "error read primary partition table\n");
+      return;
     }
 }