diff options
Diffstat (limited to 'lib/libc/tests/string/stpncpy_test.c')
-rw-r--r-- | lib/libc/tests/string/stpncpy_test.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/lib/libc/tests/string/stpncpy_test.c b/lib/libc/tests/string/stpncpy_test.c new file mode 100644 index 0000000..0a7b1d2 --- /dev/null +++ b/lib/libc/tests/string/stpncpy_test.c @@ -0,0 +1,110 @@ +/*- + * Copyright (c) 2009 David Schultz <das@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/mman.h> +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <atf-c.h> + +static char * +makebuf(size_t len, int guard_at_end) +{ + char *buf; + size_t alloc_size = roundup2(len, PAGE_SIZE) + PAGE_SIZE; + + buf = mmap(NULL, alloc_size, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0); + assert(buf); + if (guard_at_end) { + assert(munmap(buf + alloc_size - PAGE_SIZE, PAGE_SIZE) == 0); + return (buf + alloc_size - PAGE_SIZE - len); + } else { + assert(munmap(buf, PAGE_SIZE) == 0); + return (buf + PAGE_SIZE); + } +} + +static void +test_stpncpy(const char *s) +{ + char *src, *dst; + size_t size, len, bufsize, x; + int i, j; + + size = strlen(s) + 1; + for (i = 0; i <= 1; i++) { + for (j = 0; j <= 1; j++) { + for (bufsize = 0; bufsize <= size + 10; bufsize++) { + src = makebuf(size, i); + memcpy(src, s, size); + dst = makebuf(bufsize, j); + memset(dst, 'X', bufsize); + len = (bufsize < size) ? bufsize : size - 1; + assert(stpncpy(dst, src, bufsize) == dst+len); + assert(memcmp(src, dst, len) == 0); + for (x = len; x < bufsize; x++) + assert(dst[x] == '\0'); + } + } + } +} + +ATF_TC_WITHOUT_HEAD(nul); +ATF_TC_BODY(nul, tc) +{ + + test_stpncpy(""); +} + +ATF_TC_WITHOUT_HEAD(foo); +ATF_TC_BODY(foo, tc) +{ + + test_stpncpy("foo"); +} + +ATF_TC_WITHOUT_HEAD(glorp); +ATF_TC_BODY(glorp, tc) +{ + + test_stpncpy("glorp"); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, nul); + ATF_TP_ADD_TC(tp, foo); + ATF_TP_ADD_TC(tp, glorp); + + return (atf_no_error()); +} |