xref: /src/tests/lib/libc/string/t_strrchr.c

/* $NetBSD: t_strrchr.c,v 1.1 2011/07/07 08:59:33 jruoho Exp $ */

/*
 * Written by J.T. Conklin <jtc@acorntoolworks.com>
 * Public domain.
 */

#include <atf-c.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

ATF_TC(strrchr_basic);
ATF_TC_HEAD(strrchr_basic, tc)
{
        atf_tc_set_md_var(tc, "descr", "Test strrchr(3) results");
}

ATF_TC_BODY(strrchr_basic, tc)
{
	/* try to trick the compiler */
	char * (*f)(const char *, int) = strrchr;

	unsigned int a, t;
	char *off, *off2;
	char buf[32];

	struct tab {
		const char*	val;
		char		match;
		ssize_t		f_off;	/* offset of first match */
		ssize_t		l_off;	/* offset of last match */
	};

	const struct tab tab[] = {
		{ "",			0, 0, 0 },
		{ "a",			0, 0, 0 },
		{ "aa",			0, 0, 0 },
		{ "abc",		0, 0, 0 },
		{ "abcd",		0, 0, 0 },
		{ "abcde",		0, 0, 0 },
		{ "abcdef",		0, 0, 0 },
		{ "abcdefg",		0, 0, 0 },
		{ "abcdefgh",		0, 0, 0 },

		{ "/",			1, 0, 0 },
		{ "//",                 1, 0, 1 },
		{ "/a",                 1, 0, 0 },
		{ "/a/",                1, 0, 2 },
		{ "/ab",                1, 0, 0 },
		{ "/ab/",               1, 0, 3 },
		{ "/abc",               1, 0, 0 },
		{ "/abc/",              1, 0, 4 },
		{ "/abcd",              1, 0, 0 },
		{ "/abcd/",             1, 0, 5 },
		{ "/abcde",             1, 0, 0 },
		{ "/abcde/",            1, 0, 6 },
		{ "/abcdef",            1, 0, 0 },
		{ "/abcdef/",           1, 0, 7 },
		{ "/abcdefg",           1, 0, 0 },
		{ "/abcdefg/",          1, 0, 8 },
		{ "/abcdefgh",          1, 0, 0 },
		{ "/abcdefgh/",         1, 0, 9 },

		{ "a/",                 1, 1, 1 },
		{ "a//",                1, 1, 2 },
		{ "a/a",                1, 1, 1 },
		{ "a/a/",               1, 1, 3 },
		{ "a/ab",               1, 1, 1 },
		{ "a/ab/",              1, 1, 4 },
		{ "a/abc",              1, 1, 1 },
		{ "a/abc/",             1, 1, 5 },
		{ "a/abcd",             1, 1, 1 },
		{ "a/abcd/",            1, 1, 6 },
		{ "a/abcde",            1, 1, 1 },
		{ "a/abcde/",           1, 1, 7 },
		{ "a/abcdef",           1, 1, 1 },
		{ "a/abcdef/",          1, 1, 8 },
		{ "a/abcdefg",          1, 1, 1 },
		{ "a/abcdefg/",         1, 1, 9 },
		{ "a/abcdefgh",         1, 1, 1 },
		{ "a/abcdefgh/",        1, 1, 10 },

		{ "ab/",                1, 2, 2 },
		{ "ab//",               1, 2, 3 },
		{ "ab/a",               1, 2, 2 },
		{ "ab/a/",              1, 2, 4 },
		{ "ab/ab",              1, 2, 2 },
		{ "ab/ab/",             1, 2, 5 },
		{ "ab/abc",             1, 2, 2 },
		{ "ab/abc/",            1, 2, 6 },
		{ "ab/abcd",            1, 2, 2 },
		{ "ab/abcd/",           1, 2, 7 },
		{ "ab/abcde",           1, 2, 2 },
		{ "ab/abcde/",          1, 2, 8 },
		{ "ab/abcdef",          1, 2, 2 },
		{ "ab/abcdef/",         1, 2, 9 },
		{ "ab/abcdefg",         1, 2, 2 },
		{ "ab/abcdefg/",        1, 2, 10 },
		{ "ab/abcdefgh",        1, 2, 2 },
		{ "ab/abcdefgh/",       1, 2, 11 },

		{ "abc/",               1, 3, 3 },
		{ "abc//",              1, 3, 4 },
		{ "abc/a",              1, 3, 3 },
		{ "abc/a/",             1, 3, 5 },
		{ "abc/ab",             1, 3, 3 },
		{ "abc/ab/",            1, 3, 6 },
		{ "abc/abc",            1, 3, 3 },
		{ "abc/abc/",           1, 3, 7 },
		{ "abc/abcd",           1, 3, 3 },
		{ "abc/abcd/",          1, 3, 8 },
		{ "abc/abcde",          1, 3, 3 },
		{ "abc/abcde/",         1, 3, 9 },
		{ "abc/abcdef",         1, 3, 3 },
		{ "abc/abcdef/",        1, 3, 10 },
		{ "abc/abcdefg",        1, 3, 3 },
		{ "abc/abcdefg/",       1, 3, 11 },
		{ "abc/abcdefgh",       1, 3, 3 },
		{ "abc/abcdefgh/",      1, 3, 12 },

		{ "abcd/",              1, 4, 4 },
		{ "abcd//",             1, 4, 5 },
		{ "abcd/a",             1, 4, 4 },
		{ "abcd/a/",            1, 4, 6 },
		{ "abcd/ab",            1, 4, 4 },
		{ "abcd/ab/",           1, 4, 7 },
		{ "abcd/abc",           1, 4, 4 },
		{ "abcd/abc/",          1, 4, 8 },
		{ "abcd/abcd",          1, 4, 4 },
		{ "abcd/abcd/",         1, 4, 9 },
		{ "abcd/abcde",         1, 4, 4 },
		{ "abcd/abcde/",        1, 4, 10 },
		{ "abcd/abcdef",        1, 4, 4 },
		{ "abcd/abcdef/",       1, 4, 11 },
		{ "abcd/abcdefg",       1, 4, 4 },
		{ "abcd/abcdefg/",      1, 4, 12 },
		{ "abcd/abcdefgh",      1, 4, 4 },
		{ "abcd/abcdefgh/",     1, 4, 13 },

		{ "abcde/",             1, 5, 5 },
		{ "abcde//",            1, 5, 6 },
		{ "abcde/a",            1, 5, 5 },
		{ "abcde/a/",           1, 5, 7 },
		{ "abcde/ab",           1, 5, 5 },
		{ "abcde/ab/",          1, 5, 8 },
		{ "abcde/abc",          1, 5, 5 },
		{ "abcde/abc/",         1, 5, 9 },
		{ "abcde/abcd",         1, 5, 5 },
		{ "abcde/abcd/",        1, 5, 10 },
		{ "abcde/abcde",        1, 5, 5 },
		{ "abcde/abcde/",       1, 5, 11 },
		{ "abcde/abcdef",       1, 5, 5 },
		{ "abcde/abcdef/",      1, 5, 12 },
		{ "abcde/abcdefg",      1, 5, 5 },
		{ "abcde/abcdefg/",     1, 5, 13 },
		{ "abcde/abcdefgh",     1, 5, 5 },
		{ "abcde/abcdefgh/",    1, 5, 14 },

		{ "abcdef/",            1, 6, 6 },
		{ "abcdef//",           1, 6, 7 },
		{ "abcdef/a",           1, 6, 6 },
		{ "abcdef/a/",          1, 6, 8 },
		{ "abcdef/ab",          1, 6, 6 },
		{ "abcdef/ab/",         1, 6, 9 },
		{ "abcdef/abc",         1, 6, 6 },
		{ "abcdef/abc/",        1, 6, 10 },
		{ "abcdef/abcd",        1, 6, 6 },
		{ "abcdef/abcd/",       1, 6, 11 },
		{ "abcdef/abcde",       1, 6, 6 },
		{ "abcdef/abcde/",      1, 6, 12 },
		{ "abcdef/abcdef",      1, 6, 6 },
		{ "abcdef/abcdef/",     1, 6, 13 },
		{ "abcdef/abcdefg",     1, 6, 6 },
		{ "abcdef/abcdefg/",    1, 6, 14 },
		{ "abcdef/abcdefgh",    1, 6, 6 },
		{ "abcdef/abcdefgh/",   1, 6, 15 },

		{ "abcdefg/",           1, 7, 7 },
		{ "abcdefg//",          1, 7, 8 },
		{ "abcdefg/a",          1, 7, 7 },
		{ "abcdefg/a/",         1, 7, 9 },
		{ "abcdefg/ab",         1, 7, 7 },
		{ "abcdefg/ab/",        1, 7, 10 },
		{ "abcdefg/abc",        1, 7, 7 },
		{ "abcdefg/abc/",       1, 7, 11 },
		{ "abcdefg/abcd",       1, 7, 7 },
		{ "abcdefg/abcd/",      1, 7, 12 },
		{ "abcdefg/abcde",      1, 7, 7 },
		{ "abcdefg/abcde/",     1, 7, 13 },
		{ "abcdefg/abcdef",     1, 7, 7 },
		{ "abcdefg/abcdef/",    1, 7, 14 },
		{ "abcdefg/abcdefg",    1, 7, 7 },
		{ "abcdefg/abcdefg/",   1, 7, 15 },
		{ "abcdefg/abcdefgh",   1, 7, 7 },
		{ "abcdefg/abcdefgh/",  1, 7, 16 },

		{ "abcdefgh/",          1, 8, 8 },
		{ "abcdefgh//",         1, 8, 9 },
		{ "abcdefgh/a",         1, 8, 8 },
		{ "abcdefgh/a/",        1, 8, 10 },
		{ "abcdefgh/ab",        1, 8, 8 },
		{ "abcdefgh/ab/",       1, 8, 11 },
		{ "abcdefgh/abc",       1, 8, 8 },
		{ "abcdefgh/abc/",      1, 8, 12 },
		{ "abcdefgh/abcd",      1, 8, 8 },
		{ "abcdefgh/abcd/",     1, 8, 13 },
		{ "abcdefgh/abcde",     1, 8, 8 },
		{ "abcdefgh/abcde/",    1, 8, 14 },
		{ "abcdefgh/abcdef",    1, 8, 8 },
		{ "abcdefgh/abcdef/",   1, 8, 15 },
		{ "abcdefgh/abcdefg",   1, 8, 8 },
		{ "abcdefgh/abcdefg/",  1, 8, 16 },
		{ "abcdefgh/abcdefgh",  1, 8, 8 },
		{ "abcdefgh/abcdefgh/", 1, 8, 17 },
	};

	for (a = 0; a < sizeof(long); ++a) {
		for (t = 0; t < (sizeof(tab) / sizeof(tab[0])); ++t) {
			strcpy(&buf[a], tab[t].val);

			off = f(&buf[a], '/');
			if (tab[t].match == 0) {
				if (off != 0) {
					fprintf(stderr, "a %d, t %d\n", a, t);
					atf_tc_fail("strrchr should not have "
					    "found the character");
				}
			} else if (tab[t].match == 1) {
				 if (tab[t].l_off != (off - &buf[a])) {
					fprintf(stderr, "a %d, t %d\n", a, t);
					atf_tc_fail("strrchr returns wrong "
					    "offset");
				}
			} else {
				fprintf(stderr, "a %d, t %d\n", a, t);
				atf_tc_fail("bad test case data");
			}

			/* check zero extension of char arg */
			off2 = f(&buf[a], 0xffffff00 | '/');
			if (off != off2) {
				fprintf(stderr, "a %d, t %d\n", a, t);
				atf_tc_fail("zero extension of char arg fails");
			}
		}
	}
}

ATF_TP_ADD_TCS(tp)
{

	ATF_TP_ADD_TC(tp, strrchr_basic);

	return atf_no_error();
}