Date: Thu, 18 May 2023 15:24:44 GMT From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 2e6756b752e0 - main - ifconfig: improve trimming off interface number at end Message-ID: <202305181524.34IFOiLv053761@gitrepo.freebsd.org>
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The branch main has been updated by bz: URL: https://cgit.FreeBSD.org/src/commit/?id=2e6756b752e07878ae5f5e3e9b74934231f9fd17 commit 2e6756b752e07878ae5f5e3e9b74934231f9fd17 Author: Bjoern A. Zeeb <bz@FreeBSD.org> AuthorDate: 2023-05-17 20:40:47 +0000 Commit: Bjoern A. Zeeb <bz@FreeBSD.org> CommitDate: 2023-05-18 15:22:53 +0000 ifconfig: improve trimming off interface number at end When trying to auto-load a module, we trim the interface number off the end. Currently we stop at the first digit. For interfaces which have numbers in the driver name this does not work well. In the current example ifconfig ath10k0 would load ath(4) instead of ath10k(4). For module/interface names like rtw88[0] we never guess correctly. To improve for the case we can, start trimming off digits from the end rather than the front. Sponsored by: The FreeBSD Foundation Reported by: thierry MFC after: 20 days Reviewed by: melifaro, thierry Differential Revision: https://reviews.freebsd.org/D40137 --- sbin/ifconfig/ifconfig.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/sbin/ifconfig/ifconfig.c b/sbin/ifconfig/ifconfig.c index 7872c2b336a5..8c3a7b4c0007 100644 --- a/sbin/ifconfig/ifconfig.c +++ b/sbin/ifconfig/ifconfig.c @@ -1752,11 +1752,13 @@ ifmaybeload(struct ifconfig_args *args, const char *name) /* trim the interface number off the end */ strlcpy(ifname, name, sizeof(ifname)); - for (dp = ifname; *dp != 0; dp++) - if (isdigit(*dp)) { - *dp = 0; + dp = ifname + strlen(ifname) - 1; + for (; dp > ifname; dp--) { + if (isdigit(*dp)) + *dp = '\0'; + else break; - } + } /* Either derive it from the map or guess otherwise */ *ifkind = '\0';
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