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| author | Eric Paris <eparis@redhat.com> | 2012-10-10 15:25:24 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-12 00:32:02 -0400 |
| commit | 29e9a3467c1367549568d7d411d5f30209ae181b (patch) | |
| tree | 9da23e302f9dcff070f9187f2882ee76262be601 /kernel | |
| parent | 563a0d1236c2c58d584ef122a5cdc9930e5860b3 (diff) | |
| download | linux-29e9a3467c1367549568d7d411d5f30209ae181b.tar.gz linux-29e9a3467c1367549568d7d411d5f30209ae181b.tar.bz2 linux-29e9a3467c1367549568d7d411d5f30209ae181b.zip | |
audit: make audit_compare_dname_path use parent_len helper
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/auditfilter.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index ff4011c19b13..d705eb17661b 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -1332,32 +1332,19 @@ int parent_len(const char *path) * return of 0 indicates a match. */ int audit_compare_dname_path(const char *dname, const char *path) { - int dlen, plen; + int dlen, pathlen, parentlen; const char *p; - if (!dname || !path) - return 1; - dlen = strlen(dname); - plen = strlen(path); - if (plen < dlen) + pathlen = strlen(path); + if (pathlen < dlen) return 1; - /* disregard trailing slashes */ - p = path + plen - 1; - while ((*p == '/') && (p > path)) - p--; - - /* find last path component */ - p = p - dlen + 1; - if (p < path) + parentlen = parent_len(path); + if (pathlen - parentlen != dlen) return 1; - else if (p > path) { - if (*--p != '/') - return 1; - else - p++; - } + + p = path + parentlen; return strncmp(p, dname, dlen); } |