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From 9c45c4bf1a1a02ebaf9e24fd7d81d62c676eda7c Mon Sep 17 00:00:00 2001
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From: Portisch <hugo.portisch@yahoo.de>
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Date: Mon, 8 Nov 2021 12:31:39 +0100
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Subject: sysfs: fallback for partitions not including parent name
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Upstream: http://github.com/util-linux/util-linux/commit/9b59641bcec3df9c451eea4c7057751a153a3fcb
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2021462
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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lib/sysfs.c | 12 +++++++-----
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1 file changed, 7 insertions(+), 5 deletions(-)
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diff --git a/lib/sysfs.c b/lib/sysfs.c
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index bb7183319..191d870f6 100644
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--- a/lib/sysfs.c
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+++ b/lib/sysfs.c
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@@ -210,9 +210,10 @@ int sysfs_blkdev_is_partition_dirent(DIR *dir, struct dirent *d, const char *par
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d->d_type != DT_UNKNOWN)
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return 0;
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#endif
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+ size_t len = 0;
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+
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if (parent_name) {
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const char *p = parent_name;
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- size_t len;
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/* /dev/sda --> "sda" */
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if (*parent_name == '/') {
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@@ -223,14 +224,15 @@ int sysfs_blkdev_is_partition_dirent(DIR *dir, struct dirent *d, const char *par
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}
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len = strlen(p);
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- if (strlen(d->d_name) <= len)
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- return 0;
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+ if ((strlen(d->d_name) <= len) || (strncmp(p, d->d_name, len) != 0))
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+ len = 0;
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+ }
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+ if (len > 0) {
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/* partitions subdir name is
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* "<parent>[:digit:]" or "<parent>p[:digit:]"
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*/
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- return strncmp(p, d->d_name, len) == 0 &&
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- ((*(d->d_name + len) == 'p' && isdigit(*(d->d_name + len + 1)))
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+ return ((*(d->d_name + len) == 'p' && isdigit(*(d->d_name + len + 1)))
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|| isdigit(*(d->d_name + len)));
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}
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--
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2.34.1
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