From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1944) id 084473851508; Thu, 27 Oct 2022 13:51:41 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 084473851508 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1666878701; bh=qA9iR4YKxGKzR1M62G3h4Omx9eo7puGz8obIS5rBIEo=; h=From:To:Subject:Date:From; b=Z7rf9CNse+NmmktXhCKbX504FS7jInBn2vhP0RS6oDhm/cZz7LwmNmdnGh3+rM9eH p0jutl3cULog0dKW7/J94gwDdr7CocVpddc+XB6pXLrHJfNOrYGD3dJ9gQWPLlnKxV 7MH/+9v1c10okqKy8eR6spTOZsbRVNeKNFJW5fhg= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Szabolcs Nagy To: glibc-cvs@sourceware.org Subject: [glibc/arm/morello/main] aarch64: morello: string: dummy c strcspn X-Act-Checkin: glibc X-Git-Author: Szabolcs Nagy X-Git-Refname: refs/heads/arm/morello/main X-Git-Oldrev: a5174f3d210020b940c6ed4c1222197e9a756c73 X-Git-Newrev: d154b06bb943c9b8041da2bace1741c6be67efa8 Message-Id: <20221027135141.084473851508@sourceware.org> Date: Thu, 27 Oct 2022 13:51:41 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d154b06bb943c9b8041da2bace1741c6be67efa8 commit d154b06bb943c9b8041da2bace1741c6be67efa8 Author: Szabolcs Nagy Date: Wed Mar 16 10:59:17 2022 +0000 aarch64: morello: string: dummy c strcspn avoids out of bounds access of the generic implementation. Diff: --- sysdeps/aarch64/morello/strcspn.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/sysdeps/aarch64/morello/strcspn.c b/sysdeps/aarch64/morello/strcspn.c new file mode 100644 index 0000000000..82c33cdcbf --- /dev/null +++ b/sysdeps/aarch64/morello/strcspn.c @@ -0,0 +1,35 @@ +/* Simple strcspn. + + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include + +size_t strcspn (const char *str, const char *reject) +{ + if (reject[0] == 0 || reject[1] == 0) + return __strchrnul (str, reject[0]) - str; + + unsigned char table[256] = {0}; + unsigned char *us; + for (us = (unsigned char*) reject; *us != 0; table[*us++] = 1); + table[*us] = 1; + + for (us = (unsigned char*) str; table[*us] == 0; us++); + return us - (unsigned char *) str; +} +libc_hidden_builtin_def (strcspn)