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util/nvmutil: say what randomiser is used

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-08 02:34:26 +00:00
parent c1bfe6a438
commit 9bd7d04b49
1 changed files with 11 additions and 1 deletions
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12
util/nvmutil/nvmutil.c
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@@ -248,7 +248,10 @@ main(int argc, char *argv[])
}
#endif
#ifndef HAVE_ARC4RANDOM_BUF
#ifdef HAVE_ARC4RANDOM_BUF
if (cmd == CMD_SETMAC)
printf("Randomisation method: arc4random_buf\n");
#else
open_dev_urandom();
#endif
open_gbe_file();
@@ -404,6 +407,9 @@ open_dev_urandom(void)
{
struct stat st_urandom_fd;
if (cmd == CMD_SETMAC)
printf("Randomisation method: %s\n", newrandom);
/*
* Try /dev/urandom first
*/
@@ -411,6 +417,10 @@ open_dev_urandom(void)
if ((urandom_fd = open(rname, O_RDONLY)) != -1)
return;
if (cmd == CMD_SETMAC)
fprintf(stderr, "Can't open %s (will use %s instead)\n",
newrandom, oldrandom);
/*
* Fall back to /dev/random on old platforms
* where /dev/urandom does not exist.