git: f4613af424cc - main - kldxref: Fix maketempfile function's way of finding the root dir
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Date: Fri, 02 Feb 2024 15:52:23 UTC
The branch main has been updated by imp: URL: https://cgit.FreeBSD.org/src/commit/?id=f4613af424cc93d42f35730fd9862f0c6f964cbd commit f4613af424cc93d42f35730fd9862f0c6f964cbd Author: Mina Galić <freebsd@igalic.co> AuthorDate: 2024-02-02 15:35:46 +0000 Commit: Warner Losh <imp@FreeBSD.org> CommitDate: 2024-02-02 15:35:49 +0000 kldxref: Fix maketempfile function's way of finding the root dir Rather than assuming that the "root" is passed as directory and will be marked by a trailing slash, we just assume that the directory, which has been checked previously to be a directory, is a directory. This fixes an inconsistency between `kldxref /boot/modules`, which tries to create the temp file in `/boot/`, and `kldxref /boot/modules/`, which tries to create it in `/boot/modules/` itself. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/1093 --- usr.sbin/kldxref/kldxref.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/usr.sbin/kldxref/kldxref.c b/usr.sbin/kldxref/kldxref.c index 1f06ad811d91..969d07e5677a 100644 --- a/usr.sbin/kldxref/kldxref.c +++ b/usr.sbin/kldxref/kldxref.c @@ -717,12 +717,9 @@ read_kld(char *filename, char *kldname) static FILE * maketempfile(char *dest, const char *root) { - char *p; - int n, fd; + int fd; - p = strrchr(root, '/'); - n = p != NULL ? p - root + 1 : 0; - if (snprintf(dest, MAXPATHLEN, "%.*slhint.XXXXXX", n, root) >= + if (snprintf(dest, MAXPATHLEN, "%s/lhint.XXXXXX", root) >= MAXPATHLEN) { errno = ENAMETOOLONG; return (NULL);