From nobody Fri Sep 16 18:40:57 2022 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4MTjZK2x16z4cqZ9; Fri, 16 Sep 2022 18:40:57 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4MTjZK25Kpz4B1V; Fri, 16 Sep 2022 18:40:57 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1663353657; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=FNSizETgbGMhP0iaZz9xuGt7COiZp/YZvwaLdxQQ3mc=; b=UsP4bXYxdreK8V9N4GTJQKBqA73eVXG39YtG7S7sh6aBZBuDQG5Xqdo1x0EAt/sKf+LUdw au4szM4PZA2cM7q9DAlhX1R8+Puf7VlkFxCMVAYAQrrBgYH0ybJFMA2Dnn6dyuMUJEsBzc ooahmU8Vbub0wkkplrN4KlUiIaxDiH070SouHdfRZ9+H3OFKdnD3k3thg7qdnFDJE+6C7Y 5r8077rlbpDx9KvqeVaccFamXr3xy5+oBsm20GEJ4GXXXmXY95Vx/9yJi3K/1BcaaYVV6O lpRNL/93ieYe9P8DHyzRn2V2p5kTodjNGpQNkubLy3j7cyLHiLUf60AziaRIHQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4MTjZK0mWgzRXs; Fri, 16 Sep 2022 18:40:57 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 28GIevaI097884; Fri, 16 Sep 2022 18:40:57 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 28GIevmc097883; Fri, 16 Sep 2022 18:40:57 GMT (envelope-from git) Date: Fri, 16 Sep 2022 18:40:57 GMT Message-Id: <202209161840.28GIevmc097883@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Gordon Bergling Subject: git: 30cfb3c8ee3d - main - ctime.3: Add a note about a possible return value of localtime(3) List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: gbe X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 30cfb3c8ee3d3fc79644541207c81d20c72176ce Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1663353657; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=FNSizETgbGMhP0iaZz9xuGt7COiZp/YZvwaLdxQQ3mc=; b=bbRfqnF/pSanCbSJrgLOr5a+ZYain/WMyu313diRJ6DFN0DKyGGtcPS6nUVKb640U6TU9+ s4U8quRPOe3DUpMfL4NjqM9K+/1QOrilFspFFMmHQtDZX+/wKNKeZbzppBm3Eqy8FK0FlK ma0gHiObgRVJW1cPCX/KQ3OpxCQWbcOLeXLGk4fhw5S75LBVfOXtm2+zYT/jP0lgRQ8/KF 9MAIME2h5VfH6RDqxA3eXekMjQIuoGAuv0waVVbQJ7osQX8Pl5/YNZNu5Yo4gnVLQnDgdH D5AdsuCUPHo40LFC5ETQLGToAuI55G69/3KEuLVhHVkU6YuUffSzsZWRA0a8+g== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1663353657; a=rsa-sha256; cv=none; b=WRGwOUFrF4bCh78X9B2nisx554cvGZXFNU4iHhI2KM/oUlvGKPGpg0RcYj/K9eM81WVBxZ 6G6XLz6HrYqzpdi3RssGwVVAhiQfi2wX+s5P7FXk6sYuOC784CgvhEzDda8rJmoHx+vaHd BE1UOSKitNfIPOjsG2wspjgX1KPlzX/rFyMf8DR2FAH3m+rbtr7uHguBC9tgWeYZYKksLB 2Gc4DyS6gCHf+iR32joCgX9J2YGhckTBxI6+2UMJcJBEDX4SsFqZlwie6VXRPfyj6MDLM0 VDLq+di7TKobm2cc9WEVcCrI1i3aaXlspIPhDbdVnoQP42HGDxtQSfnuD6i/VQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by gbe (doc committer): URL: https://cgit.FreeBSD.org/src/commit/?id=30cfb3c8ee3d3fc79644541207c81d20c72176ce commit 30cfb3c8ee3d3fc79644541207c81d20c72176ce Author: Gordon Bergling AuthorDate: 2022-09-16 18:38:58 +0000 Commit: Gordon Bergling CommitDate: 2022-09-16 18:38:58 +0000 ctime.3: Add a note about a possible return value of localtime(3) The localtime(3) function returns a NULL pointer, if the passed in-time translates to a year that will not fit in an integer type. It is stricly recommended to check the return value to avoid garage output. Reported by: mckusick Reviewed by: mckusick, imp, rpokala MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D36515 --- contrib/tzcode/stdtime/ctime.3 | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/contrib/tzcode/stdtime/ctime.3 b/contrib/tzcode/stdtime/ctime.3 index 771027fa62ec..de3a57bab59e 100644 --- a/contrib/tzcode/stdtime/ctime.3 +++ b/contrib/tzcode/stdtime/ctime.3 @@ -30,7 +30,7 @@ .\" From: @(#)ctime.3 8.1 (Berkeley) 6/4/93 .\" $FreeBSD$ .\" -.Dd March 4, 2022 +.Dd September 16, 2022 .Dt CTIME 3 .Os .Sh NAME @@ -94,6 +94,10 @@ and returns a pointer to a (described below) which contains the broken-out time information for the value after adjusting for the current time zone (and any other factors such as Daylight Saving Time). +When the specified time translates to a year that will not fit in an +.Dv int , +.Fn localtime +returns NULL. Time zone adjustments are performed as specified by the .Ev TZ environment variable (see