1272343Sngie/* $NetBSD: t_memchr.c,v 1.3 2012/04/06 07:53:10 jruoho Exp $ */ 2272343Sngie 3272343Sngie/* 4272343Sngie * Written by J.T. Conklin <jtc@acorntoolworks.com> 5272343Sngie * Public domain. 6272343Sngie */ 7272343Sngie 8272343Sngie#include <atf-c.h> 9272343Sngie#include <string.h> 10272343Sngie#include <unistd.h> 11272343Sngie#include <stdio.h> 12272343Sngie#include <stdlib.h> 13272343Sngie 14272343SngieATF_TC(memchr_basic); 15272343SngieATF_TC_HEAD(memchr_basic, tc) 16272343Sngie{ 17272343Sngie atf_tc_set_md_var(tc, "descr", "Test memchr(3) results, #1"); 18272343Sngie} 19272343Sngie 20272343SngieATF_TC_BODY(memchr_basic, tc) 21272343Sngie{ 22272343Sngie /* try to trick the compiler */ 23272343Sngie void * (*f)(const void *, int, size_t) = memchr; 24272343Sngie 25272343Sngie unsigned int a, t; 26272343Sngie void *off, *off2; 27272343Sngie char buf[32]; 28272343Sngie 29272343Sngie struct tab { 30272343Sngie const char *val; 31272343Sngie size_t len; 32272343Sngie char match; 33272343Sngie ssize_t off; 34272343Sngie }; 35272343Sngie 36272343Sngie const struct tab tab[] = { 37272343Sngie { "", 0, 0, 0 }, 38272343Sngie 39272343Sngie { "/", 0, 0, 0 }, 40272343Sngie { "/", 1, 1, 0 }, 41272343Sngie { "/a", 2, 1, 0 }, 42272343Sngie { "/ab", 3, 1, 0 }, 43272343Sngie { "/abc", 4, 1, 0 }, 44272343Sngie { "/abcd", 5, 1, 0 }, 45272343Sngie { "/abcde", 6, 1, 0 }, 46272343Sngie { "/abcdef", 7, 1, 0 }, 47272343Sngie { "/abcdefg", 8, 1, 0 }, 48272343Sngie 49272343Sngie { "a/", 1, 0, 0 }, 50272343Sngie { "a/", 2, 1, 1 }, 51272343Sngie { "a/b", 3, 1, 1 }, 52272343Sngie { "a/bc", 4, 1, 1 }, 53272343Sngie { "a/bcd", 5, 1, 1 }, 54272343Sngie { "a/bcde", 6, 1, 1 }, 55272343Sngie { "a/bcdef", 7, 1, 1 }, 56272343Sngie { "a/bcdefg", 8, 1, 1 }, 57272343Sngie 58272343Sngie { "ab/", 2, 0, 0 }, 59272343Sngie { "ab/", 3, 1, 2 }, 60272343Sngie { "ab/c", 4, 1, 2 }, 61272343Sngie { "ab/cd", 5, 1, 2 }, 62272343Sngie { "ab/cde", 6, 1, 2 }, 63272343Sngie { "ab/cdef", 7, 1, 2 }, 64272343Sngie { "ab/cdefg", 8, 1, 2 }, 65272343Sngie 66272343Sngie { "abc/", 3, 0, 0 }, 67272343Sngie { "abc/", 4, 1, 3 }, 68272343Sngie { "abc/d", 5, 1, 3 }, 69272343Sngie { "abc/de", 6, 1, 3 }, 70272343Sngie { "abc/def", 7, 1, 3 }, 71272343Sngie { "abc/defg", 8, 1, 3 }, 72272343Sngie 73272343Sngie { "abcd/", 4, 0, 0 }, 74272343Sngie { "abcd/", 5, 1, 4 }, 75272343Sngie { "abcd/e", 6, 1, 4 }, 76272343Sngie { "abcd/ef", 7, 1, 4 }, 77272343Sngie { "abcd/efg", 8, 1, 4 }, 78272343Sngie 79272343Sngie { "abcde/", 5, 0, 0 }, 80272343Sngie { "abcde/", 6, 1, 5 }, 81272343Sngie { "abcde/f", 7, 1, 5 }, 82272343Sngie { "abcde/fg", 8, 1, 5 }, 83272343Sngie 84272343Sngie { "abcdef/", 6, 0, 0 }, 85272343Sngie { "abcdef/", 7, 1, 6 }, 86272343Sngie { "abcdef/g", 8, 1, 6 }, 87272343Sngie 88272343Sngie { "abcdefg/", 7, 0, 0 }, 89272343Sngie { "abcdefg/", 8, 1, 7 }, 90272343Sngie 91272343Sngie { "\xff\xff\xff\xff" "efg/", 8, 1, 7 }, 92272343Sngie { "a" "\xff\xff\xff\xff" "fg/", 8, 1, 7 }, 93272343Sngie { "ab" "\xff\xff\xff\xff" "g/", 8, 1, 7 }, 94272343Sngie { "abc" "\xff\xff\xff\xff" "/", 8, 1, 7 }, 95272343Sngie }; 96272343Sngie 97272343Sngie for (a = 1; a < 1 + sizeof(long); ++a) { 98272343Sngie for (t = 0; t < (sizeof(tab) / sizeof(tab[0])); ++t) { 99272343Sngie buf[a-1] = '/'; 100272343Sngie strcpy(&buf[a], tab[t].val); 101272343Sngie 102272343Sngie off = f(&buf[a], '/', tab[t].len); 103272343Sngie if (tab[t].match == 0) { 104272343Sngie if (off != 0) { 105272343Sngie fprintf(stderr, "a = %d, t = %d\n", 106272343Sngie a, t); 107272343Sngie atf_tc_fail("should not have found " 108272343Sngie " char past len"); 109272343Sngie } 110272343Sngie } else if (tab[t].match == 1) { 111272343Sngie if (tab[t].off != ((char*)off - &buf[a])) { 112272343Sngie fprintf(stderr, "a = %d, t = %d\n", 113272343Sngie a, t); 114272343Sngie atf_tc_fail("char not found at " 115272343Sngie "correct offset"); 116272343Sngie } 117272343Sngie } else { 118272343Sngie fprintf(stderr, "a = %d, t = %d\n", a, t); 119272343Sngie atf_tc_fail("Corrupt test case data"); 120272343Sngie } 121272343Sngie 122272343Sngie /* check zero extension of char arg */ 123272343Sngie off2 = f(&buf[a], 0xffffff00 | '/', tab[t].len); 124272343Sngie if (off2 != off) 125272343Sngie atf_tc_fail("zero extension of char arg " 126272343Sngie "failed"); 127272343Sngie } 128272343Sngie } 129272343Sngie} 130272343Sngie 131272343SngieATF_TC(memchr_simple); 132272343SngieATF_TC_HEAD(memchr_simple, tc) 133272343Sngie{ 134272343Sngie atf_tc_set_md_var(tc, "descr", "Test memchr(3) results, #2"); 135272343Sngie} 136272343Sngie 137272343SngieATF_TC_BODY(memchr_simple, tc) 138272343Sngie{ 139272343Sngie char buf[] = "abcdefg"; 140272343Sngie short i = 7; 141272343Sngie 142272343Sngie ATF_CHECK(memchr(buf, 'a', 0) == NULL); 143272343Sngie ATF_CHECK(memchr(buf, 'g', 0) == NULL); 144272343Sngie ATF_CHECK(memchr(buf, 'x', 7) == NULL); 145272343Sngie 146272343Sngie ATF_CHECK(memchr("\0", 'x', 0) == NULL); 147272343Sngie ATF_CHECK(memchr("\0", 'x', 1) == NULL); 148272343Sngie 149272343Sngie while (i <= 14) { 150272343Sngie 151272343Sngie ATF_CHECK(memchr(buf, 'a', i) == buf + 0); 152272343Sngie ATF_CHECK(memchr(buf, 'b', i) == buf + 1); 153272343Sngie ATF_CHECK(memchr(buf, 'c', i) == buf + 2); 154272343Sngie ATF_CHECK(memchr(buf, 'd', i) == buf + 3); 155272343Sngie ATF_CHECK(memchr(buf, 'e', i) == buf + 4); 156272343Sngie ATF_CHECK(memchr(buf, 'f', i) == buf + 5); 157272343Sngie ATF_CHECK(memchr(buf, 'g', i) == buf + 6); 158272343Sngie 159272343Sngie i *= 2; 160272343Sngie } 161272343Sngie} 162272343Sngie 163272343SngieATF_TC(memrchr_simple); 164272343SngieATF_TC_HEAD(memrchr_simple, tc) 165272343Sngie{ 166272343Sngie atf_tc_set_md_var(tc, "descr", "Test memrchr(3) results"); 167272343Sngie} 168272343Sngie 169272343SngieATF_TC_BODY(memrchr_simple, tc) 170272343Sngie{ 171272343Sngie char buf[] = "abcdabcd"; 172272343Sngie 173272343Sngie ATF_CHECK(memrchr(buf, 'a', 0) == NULL); 174272343Sngie ATF_CHECK(memrchr(buf, 'g', 0) == NULL); 175272343Sngie ATF_CHECK(memrchr(buf, 'x', 8) == NULL); 176272343Sngie 177272343Sngie ATF_CHECK(memrchr("\0", 'x', 0) == NULL); 178272343Sngie ATF_CHECK(memrchr("\0", 'x', 1) == NULL); 179272343Sngie 180272343Sngie ATF_CHECK(memrchr(buf, 'a', 8) == buf + 4); 181272343Sngie ATF_CHECK(memrchr(buf, 'b', 8) == buf + 5); 182272343Sngie ATF_CHECK(memrchr(buf, 'c', 8) == buf + 6); 183272343Sngie ATF_CHECK(memrchr(buf, 'd', 8) == buf + 7); 184272343Sngie} 185272343Sngie 186272343SngieATF_TP_ADD_TCS(tp) 187272343Sngie{ 188272343Sngie 189272343Sngie ATF_TP_ADD_TC(tp, memchr_basic); 190272343Sngie ATF_TP_ADD_TC(tp, memchr_simple); 191272343Sngie ATF_TP_ADD_TC(tp, memrchr_simple); 192272343Sngie 193272343Sngie return atf_no_error(); 194272343Sngie} 195