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apps: Fix bug by calling getrandom

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Signed-off-by: weizihan <weizihan@xiaomi.com>
This commit is contained in:
weizihan 2022-04-19 20:22:59 +08:00 committed by Xiang Xiao
parent 8fe295de32
commit c4972d4721
1 changed files with 6 additions and 5 deletions
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11
fsutils/mkgpt/mkgpt.c
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@ -31,6 +31,7 @@
#include <unistd.h> #include <unistd.h>
#include <string.h> #include <string.h>
#include <sys/random.h>
#include <sys/stat.h> #include <sys/stat.h>
#include <sys/ioctl.h> #include <sys/ioctl.h>
@ -128,12 +129,12 @@ static const uint8_t g_partition_type_swap[16] =
static void get_uuid(FAR uint8_t *uuid) static void get_uuid(FAR uint8_t *uuid)
{ {
int fd; /* call getrandom to read /dev/urandom */
fd = open("/dev/urandom", O_RDONLY);
if (fd > 0) if (getrandom(uuid, 16, 0) < 0)
{ {
read(fd, uuid, 16); fprintf(stderr, "error read primary partition table\n");
close(fd); return;
} }
} }