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16150352f5
This function originated in glibc, and this matches their behaviour (and NetBSD, OpenBSD, and musl). An empty big string (arg "l") is handled by the existing l_len < s_len test. Reviewed by: bapt, ngie Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D2657
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/* $NetBSD: t_memmem.c,v 1.2 2011/07/07 08:27:36 jruoho Exp $ */
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/*-
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* Copyright (c) 2005 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Perry E. Metzger of Metzger, Dowdeswell & Co. LLC.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <atf-c.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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char p0[] = "";
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int lp0 = 0;
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char p1[] = "0123";
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int lp1 = 4;
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char p2[] = "456";
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int lp2 = 3;
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char p3[] = "789";
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int lp3 = 3;
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char p4[] = "abc";
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int lp4 = 3;
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char p5[] = "0";
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int lp5 = 1;
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char p6[] = "9";
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int lp6 = 1;
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char p7[] = "654";
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int lp7 = 3;
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char b0[] = "";
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int lb0 = 0;
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char b1[] = "0";
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int lb1 = 1;
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char b2[] = "0123456789";
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int lb2 = 10;
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#define expect(b) \
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if (!(b)) { \
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fprintf(stderr, "failed on line %d\n", __LINE__); \
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atf_tc_fail("Check stderr for test id/line"); \
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}
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ATF_TC(memmem_basic);
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ATF_TC_HEAD(memmem_basic, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test memmem results");
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}
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ATF_TC_BODY(memmem_basic, tc)
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{
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#if defined(__darwin__)
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expect(memmem(b2, lb2, p0, lp0) == NULL);
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expect(memmem(b0, lb0, p0, lp0) == NULL);
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#else
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expect(memmem(b2, lb2, p0, lp0) == b2);
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expect(memmem(b0, lb0, p0, lp0) == b0);
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#endif
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expect(memmem(b0, lb0, p1, lp1) == NULL);
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expect(memmem(b1, lb1, p1, lp1) == NULL);
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expect(memmem(b2, lb2, p1, lp1) == b2);
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expect(memmem(b2, lb2, p2, lp2) == (b2 + 4));
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expect(memmem(b2, lb2, p3, lp3) == (b2 + 7));
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expect(memmem(b2, lb2, p5, lp5) == b2);
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expect(memmem(b2, lb2, p6, lp6) == (b2 + 9));
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expect(memmem(b2, lb2, p4, lp4) == NULL);
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expect(memmem(b2, lb2, p7, lp7) == NULL);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, memmem_basic);
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return atf_no_error();
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}
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