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From 90783d6294351229efdee5469dd8cd08d0057731 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Thu, 25 Nov 2021 11:54:26 +0100
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Subject: [PATCH 72/74] blkid: check device type and name before probe
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For calls "blkid /dev/*", it seems better to check the
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device type and name before we open the device in libblkid.
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Upstream: http://github.com/util-linux/util-linux/commit/64cfe6ac37631a6347bd4005c72dd2d37e737f5e
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2026511
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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misc-utils/blkid.c | 27 +++++++++++++++++++++++++--
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1 file changed, 25 insertions(+), 2 deletions(-)
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diff --git a/misc-utils/blkid.c b/misc-utils/blkid.c
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index 61a6994c2..bd4ce4a39 100644
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--- a/misc-utils/blkid.c
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+++ b/misc-utils/blkid.c
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@@ -46,6 +46,8 @@
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#define XALLOC_EXIT_CODE BLKID_EXIT_OTHER /* x.*alloc(), xstrndup() */
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#include "xalloc.h"
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+#include "sysfs.h"
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+
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struct blkid_control {
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int output;
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uintmax_t offset;
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@@ -813,8 +815,29 @@ int main(int argc, char **argv)
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/* The rest of the args are device names */
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if (optind < argc) {
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devices = xcalloc(argc - optind, sizeof(char *));
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- while (optind < argc)
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- devices[numdev++] = argv[optind++];
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+ while (optind < argc) {
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+ char *dev = argv[optind++];
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+ struct stat sb;
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+
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+ if (stat(dev, &sb) != 0)
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+ continue;
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+ else if (S_ISBLK(sb.st_mode))
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+ ;
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+ else if (S_ISREG(sb.st_mode))
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+ ;
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+ else if (S_ISCHR(sb.st_mode)) {
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+ char buf[PATH_MAX];
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+
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+ if (!sysfs_chrdev_devno_to_devname(
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+ sb.st_rdev, buf, sizeof(buf)))
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+ continue;
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+ if (strncmp(buf, "ubi", 3) != 0)
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+ continue;
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+ } else
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+ continue;
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+
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+ devices[numdev++] = dev;
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+ }
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}
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/* convert LABEL/UUID lookup to evaluate request */
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--
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2.31.1
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