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tests/libutil/snprintb_m: add tests for small line length

This commit is contained in:
rillig 2024-02-14 20:51:17 +00:00
parent 6025177e40
commit 1fb4457e9f
1 changed files with 83 additions and 13 deletions
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96
tests/lib/libutil/t_snprintb.c
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@ -1,4 +1,4 @@
/* $NetBSD: t_snprintb.c,v 1.12 2024/01/27 21:42:29 rillig Exp $ */
/* $NetBSD: t_snprintb.c,v 1.13 2024/02/14 20:51:17 rillig Exp $ */
/*
* Copyright (c) 2002, 2004, 2008, 2010, 2024 The NetBSD Foundation, Inc.
@ -32,7 +32,7 @@
#include <sys/cdefs.h>
__COPYRIGHT("@(#) Copyright (c) 2008, 2010\
The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_snprintb.c,v 1.12 2024/01/27 21:42:29 rillig Exp $");
__RCSID("$NetBSD: t_snprintb.c,v 1.13 2024/02/14 20:51:17 rillig Exp $");
#include <stdio.h>
#include <string.h>
@ -573,36 +573,44 @@ ATF_TC_BODY(snprintb, tc)
static void
h_snprintb_m_loc(const char *file, size_t line,
const char *fmt, size_t fmtlen, uint64_t val, int line_max,
const char *res, size_t reslen)
size_t bufsize, const char *fmt, size_t fmtlen, uint64_t val, size_t max,
size_t exp_rv, const char *res, size_t reslen)
{
char buf[1024];
int rv = snprintb_m(buf, sizeof(buf), fmt, val, line_max);
ATF_REQUIRE(bufsize > 1);
ATF_REQUIRE(bufsize <= sizeof(buf));
ATF_REQUIRE_MSG(rv >= 0, "formatting %jx with '%s' returns error %d",
memset(buf, 'Z', sizeof(buf));
int rv = snprintb_m(buf, bufsize, fmt, val, max);
ATF_REQUIRE_MSG(rv >= 0,
"formatting %jx with '%s' returns error %d",
(uintmax_t)val, vis_arr(fmt, fmtlen), rv);
size_t buflen = rv;
size_t total = rv;
ATF_CHECK_MSG(
buflen == reslen && memcmp(buf, res, reslen) == 0,
total == exp_rv && memcmp(buf, res, reslen) == 0,
"failed:\n"
"\ttest case: %s:%zu\n"
"\tformat: %s\n"
"\tvalue: %#jx\n"
"\tmax: %zu\n"
"\twant: %zu bytes %s\n"
"\thave: %zu bytes %s\n",
file, line,
vis_arr(fmt, fmtlen),
(uintmax_t)val,
reslen, vis_arr(res, reslen),
buflen, vis_arr(buf, buflen));
max,
exp_rv, vis_arr(res, reslen),
total, vis_arr(buf, reslen));
}
#define h_snprintb_m(fmt, val, line_max, res) \
#define h_snprintb_m_len(bufsize, fmt, val, line_max, exp_rv, res) \
h_snprintb_m_loc(__FILE__, __LINE__, \
fmt, sizeof(fmt) - 1, val, line_max, \
res, sizeof(res) - 1)
bufsize, fmt, sizeof(fmt) - 1, val, line_max, \
exp_rv, res, sizeof(res) - 1)
#define h_snprintb_m(fmt, val, max, res) \
h_snprintb_m_len(1024, fmt, val, max, sizeof(res) - 1, res)
ATF_TC(snprintb_m);
ATF_TC_HEAD(snprintb_m, tc)
@ -611,6 +619,68 @@ ATF_TC_HEAD(snprintb_m, tc)
}
ATF_TC_BODY(snprintb_m, tc)
{
// old-style format, small maximum line length
h_snprintb_m_len(
68,
"\020"
"\001bit1"
"\002bit2"
"\003bit3",
0xffff,
6,
143,
/* 0 */ "0xffff>\0"
/* 8 */ "0xffff<>\0"
/* 17 */ "0xffffb>\0"
/* 26 */ "0xffffi>\0"
/* 35 */ "0xfffft>\0"
/* 44 */ "0xffff1>\0"
/* 53 */ "0xffff<>\0"
/* 62 */ "0xff\0"
/* 67 */ "ZZZ"
/* 70 */ "ZZZZZZZZZZ"
/* 80 */ "ZZZZZZZZZZ"
/* 90 */ "ZZZZZZZZZZ"
/* 100 */ "ZZZZZZZZZZ"
/* 110 */ "ZZZZZZ"
/* 116 */ "\0\0" /* FIXME: out-of-bounds write */
/* 118 */ "ZZ"
/* 120 */ "ZZZZZZZZZZ"
/* 130 */ "ZZZZZZZZZZ"
/* 140 */ "ZZZZZZZZZZ"
);
// new-style format, small maximum line length
h_snprintb_m_len(
68,
"\177\020"
"b\000bit1\0"
"b\001bit2\0"
"b\002bit3\0",
0xffff,
6,
143,
/* 0 */ "0xffff>\0"
/* 8 */ "0xffff<>\0"
/* 17 */ "0xffffb>\0"
/* 26 */ "0xffffi>\0"
/* 35 */ "0xfffft>\0"
/* 44 */ "0xffff1>\0"
/* 53 */ "0xffff<>\0"
/* 62 */ "0xff\0"
/* 67 */ "ZZZ"
/* 70 */ "ZZZZZZZZZZ"
/* 80 */ "ZZZZZZZZZZ"
/* 90 */ "ZZZZZZZZZZ"
/* 100 */ "ZZZZZZZZZZ"
/* 110 */ "ZZZZZZ"
/* 116 */ "\0\0" /* FIXME: out-of-bounds write */
/* 118 */ "ZZ"
/* 120 */ "ZZZZZZZZZZ"
/* 130 */ "ZZZZZZZZZZ"
/* 140 */ "ZZZZZZZZZZ"
);
h_snprintb_m(
"\177\020"
"b\0LSB\0"