From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.web.de (mout.web.de [212.227.15.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B838579FD for ; Sun, 21 Apr 2024 12:40:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.15.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713703245; cv=none; b=QJSm513T0YnwFeJ98p/Rq1n7EGP38aTzpLLWisjq+LRYwIbBIuOApqBELnXYF2spJi2+GTPX0qRtrv9p81eImSJWR1/y+BTqS5tmJNmYrHIi87CRBeaBMp2r3OT5IC1OipraF9znFTOU/PGSFfz4uXlJZm5zN67J2ZdekRzOpH8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713703245; c=relaxed/simple; bh=TfxCA2I5mMxCrpy2qjGoJp1xZmYskrMimTzD7sCI3TQ=; h=Message-ID:Date:MIME-Version:To:Cc:From:Subject:Content-Type; b=YDjNJMgU7TVkS4f1Iv/RPC7YVb4VhumgTRTAYi5PT/3UhewhEq/YpatzNBFDXcngoZuUl+jf2S/QPqXmGmSrAOca7eN8ItIkImchZWSM3+IRAplQ8hKyvWdhR6mAuR/Zao+tHyMGHyvyk6anBCGJWSB6Rwvad14M/U394ybym0k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de; spf=pass smtp.mailfrom=web.de; dkim=pass (2048-bit key) header.d=web.de header.i=l.s.r@web.de header.b=hAbY6jQc; arc=none smtp.client-ip=212.227.15.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=web.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=web.de header.i=l.s.r@web.de header.b="hAbY6jQc" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1713703229; x=1714308029; i=l.s.r@web.de; bh=u0/+CsJf+cQBIdfBz1hGhdzAN2uEcReuyj296NMcDfw=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:To:Cc:From: Subject:Content-Type:Content-Transfer-Encoding:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=hAbY6jQcLAquJaJd3H7wbi6EyO4zNFS0wWzUJD9132gKZbuZTWbt9xBhlXW55ZY+ 3wofdW8TqcULBbbsz2IjmUzI9AClsrEUXS31GLh3c0XE3rFhPUagRVZtaWatI61U0 4Pfvokn7uocCR1VT7/RlA4oBQMm83QV6+8ff3ZsfmBl/4GSryr9/bU0WFN4eLIN+z 1doslATzGm38e2VwTBLU6rQeNz+H3s3fy6nVQ0BDHPeP4+bjnn83wCSDwIInZlAho FF7+MlOMMOvWhUFT//c+jB4Y2Y8rPc9FOJfL12MS8qNGa3gTXTs3B7Br4nB+EbFlS QeArLLqZemOlrUE2Xg== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from [192.168.178.29] ([91.47.153.5]) by smtp.web.de (mrweb006 [213.165.67.108]) with ESMTPSA (Nemesis) id 1MRk4s-1sAAY30pNC-00TDW1; Sun, 21 Apr 2024 14:40:29 +0200 Message-ID: Date: Sun, 21 Apr 2024 14:40:28 +0200 Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: Git List Cc: Jeff King From: =?UTF-8?Q?Ren=C3=A9_Scharfe?= Subject: [PATCH] don't report vsnprintf(3) error as bug Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:SWy2IhlzYEnjBw4s/xXosGujxatRHaq+b66mY9Ml/Z5efKptKY7 LZ0dGDTNsEq8XIoQbVnsO+FVVo5s3HR0CrVYV9Ge+PC8MFdfAduWCdOEJYf6dmr8pw69sw6 HoCD3liaBAXardVrj+5hOXM3NA2piKatb62B+sCCmZU26BqCe7GPPnAisGOv6ifhJH0xCrP k3FK4PLKZm3M/tRIEduIg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:hTArNcmjH/w=;PCOZ7fW0Ji4sCONaIJqW6771H73 HxHzez9GklGb45KsAGhU/dLAuCKdiBKNZeAygNJnA7MPVYxxRp5mQ5IHr6MJ+xpShR9Ff2hEv PNNtjr0c/zyqt2eJRUpP/z2WRMLk3NDsV454iDQvhHZRb2nhXczGkUqkxgtsjAoG/bALJXXfz 4NFfuQ/UP/7JbaY44e3jC1IWwavz6mEedG/0KB36JRxrnDMuKih3hbQbzHfDTYBbov41PHArS nlZaX7ASspoObDoLs6F8368zyUIyiw37aSBrC8iHKzi5pjTjvC/EhxTqTDJpPCEEpcOTfqmYp lx5RQx5k3krE29+b/+/yu199m+8TCOJhWNcLpMs83OFAT6vuHq7Rw3nXz6BgTGtoQhlZ/qh2M WAh2TDnpqdXY0WxU3M/3neW5OCrBeRDk3C/+vWDcpCveV5IYeGRl5JXTVFDMTCEwnwU9mKPmO KqdxyF4j2jY51HpJG3sgCZd/giUm9R4sYflzyhWAeyg4Gt27rOq/JBWzgO5wUw0Ewivye82uJ nIjsmNAm0SKy2kIy9hE0x8CKfTJdW7Rs9ipvyhN/VMoK6b54SvNJ8kvt5uTeTTbYKJX2YE4Yk gD/wIdEOC4FEAdg51SORL6xuEWEdyL7+fCnu8GnNGnfRjYP8s64kyxXS9ZAzbTV+4/5hdK5mf rDllxXen4ujhRhVo95gQdNgUjvt6rlDF6sy2AO+14GoxVAod3iuC8SoCDPHQ2zTQx7RBO8EUC JzbkgYF5DOxFrsyw6VRgU54181n2t986JvniNHtqw/H5hgnYZ4wTHFVIEwyUzWGyFFxKQn1N+ oDJscrpXkoJRmAFIxqMDD5TXeo4apoqNBW06A8aSOpMVo= strbuf_addf() has been reporting a negative return value of vsnprintf(3) as a bug since f141bd804d (Handle broken vsnprintf implementations in strbuf, 2007-11-13). Other functions copied that behavior: 7b03c89ebd (add xsnprintf helper function, 2015-09-24) 5ef264dbdb (strbuf.c: add `strbuf_insertf()` and `strbuf_vinsertf()`, 2019= -02-25) 8d25663d70 (mem-pool: add mem_pool_strfmt(), 2024-02-25) However, vsnprintf(3) can legitimately return a negative value if the formatted output would be longer than INT_MAX. Stop accusing it of being broken and just report the fact that formatting failed. Suggested-by: Jeff King Signed-off-by: Ren=C3=A9 Scharfe =2D-- mem-pool.c | 3 ++- strbuf.c | 4 ++-- wrapper.c | 2 +- 3 files changed, 5 insertions(+), 4 deletions(-) diff --git a/mem-pool.c b/mem-pool.c index 3065b12b23..a3ba38831d 100644 =2D-- a/mem-pool.c +++ b/mem-pool.c @@ -4,6 +4,7 @@ #include "git-compat-util.h" #include "mem-pool.h" +#include "gettext.h" #define BLOCK_GROWTH_SIZE (1024 * 1024 - sizeof(struct mp_block)) @@ -122,7 +123,7 @@ static char *mem_pool_strvfmt(struct mem_pool *pool, c= onst char *fmt, len =3D vsnprintf(next_free, available, fmt, cp); va_end(cp); if (len < 0) - BUG("your vsnprintf is broken (returned %d)", len); + die(_("unable to format message: %s"), fmt); size =3D st_add(len, 1); /* 1 for NUL */ ret =3D mem_pool_alloc(pool, size); diff --git a/strbuf.c b/strbuf.c index 1492a08225..0d929e4e19 100644 =2D-- a/strbuf.c +++ b/strbuf.c @@ -277,7 +277,7 @@ void strbuf_vinsertf(struct strbuf *sb, size_t pos, co= nst char *fmt, va_list ap) len =3D vsnprintf(sb->buf + sb->len, 0, fmt, cp); va_end(cp); if (len < 0) - BUG("your vsnprintf is broken (returned %d)", len); + die(_("unable to format message: %s"), fmt); if (!len) return; /* nothing to do */ if (unsigned_add_overflows(sb->len, len)) @@ -404,7 +404,7 @@ void strbuf_vaddf(struct strbuf *sb, const char *fmt, = va_list ap) len =3D vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, cp); va_end(cp); if (len < 0) - BUG("your vsnprintf is broken (returned %d)", len); + die(_("unable to format message: %s"), fmt); if (len > strbuf_avail(sb)) { strbuf_grow(sb, len); len =3D vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); diff --git a/wrapper.c b/wrapper.c index eeac3741cf..f87d90bf57 100644 =2D-- a/wrapper.c +++ b/wrapper.c @@ -670,7 +670,7 @@ int xsnprintf(char *dst, size_t max, const char *fmt, = ...) va_end(ap); if (len < 0) - BUG("your snprintf is broken"); + die(_("unable to format message: %s"), fmt); if (len >=3D max) BUG("attempt to snprintf into too-small buffer"); return len; =2D- 2.44.0