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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2017-2020 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include "sudo_compat.h"
#include "sudo_fatal.h"
#include "sudo_util.h"
sudo_dso_public int main(int argc, char *argv[]);
/*
* Test that sudo_vsyslog() works as expected.
*/
static char *expected_result;
static int errors;
static int ntests;
/*
* Replacement for syslog(3) that just verifies the message
*/
void
syslog(int priority, const char *fmt, ...)
{
va_list ap;
const char *msg;
if (strcmp(fmt, "%s") != 0)
sudo_fatalx_nodebug("Expected syslog format \"%%s\", got \"%s\"", fmt);
va_start(ap, fmt);
msg = va_arg(ap, char *);
if (strcmp(msg, expected_result) != 0) {
sudo_warnx_nodebug("Expected \"%s\", got \"%s\"", expected_result, msg);
errors++;
} else {
ntests++;
}
va_end(ap);
}
static void
test_vsyslog(int priority, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
sudo_vsyslog(priority, fmt, ap);
va_end(ap);
}
int
main(int argc, char *argv[])
{
int len;
char buf1[1024 * 16], buf2[1024 * 16];
initprogname(argc > 0 ? argv[0] : "vsyslog_test");
/* Test small buffer. */
expected_result = "sudo: millert : TTY=ttypa ; PWD=/etc/mail ; USER=root ; TSID=000AB0 ; COMMAND=/usr/sbin/newaliases";
test_vsyslog(0,
"%s: %s : TTY=%s ; PWD=%s ; USER=%s ; TSID=%s ; COMMAND=%s",
"sudo", "millert", "ttypa", "/etc/mail", "root", "000AB0",
"/usr/sbin/newaliases");
/* Test small buffer w/ errno. */
len = snprintf(buf1, sizeof(buf1),
"unable to open %s: %s", "/var/log/sudo-io/seq", strerror(ENOENT));
if (len < 0 || len >= ssizeof(buf1))
sudo_warnx_nodebug("buf1 truncated at %s:%d", __FILE__, __LINE__);
expected_result = buf1;
errno = ENOENT;
test_vsyslog(0, "unable to open %s: %m", "/var/log/sudo-io/seq");
/* Test large buffer > 8192 bytes. */
memset(buf1, 'a', 8192);
buf1[8192] = '\0';
expected_result = buf1;
test_vsyslog(0, "%s", buf1);
/* Test large buffer w/ errno > 8192 bytes. */
memset(buf1, 'b', 8184);
buf1[8184] = '\0';
len = snprintf(buf2, sizeof(buf2), "%s: %s", buf1, strerror(EINVAL));
if (len < 0 || len >= ssizeof(buf2))
sudo_warnx_nodebug("buf2 truncated at %s:%d", __FILE__, __LINE__);
expected_result = buf2;
errno = EINVAL;
test_vsyslog(0, "%s: %m", buf1);
/* Test large format string > 8192 bytes, expect truncation to 2048. */
memset(buf1, 'b', 8184);
buf1[8184] = '\0';
len = snprintf(buf2, sizeof(buf2), "%.*s", 2047, buf1);
if (len < 0 || len >= ssizeof(buf2))
sudo_warnx_nodebug("buf2 truncated at %s:%d", __FILE__, __LINE__);
expected_result = buf2;
test_vsyslog(0, buf1);
if (ntests != 0) {
printf("%s: %d tests run, %d errors, %d%% success rate\n",
getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
} else {
printf("%s: error, no tests run!\n", getprogname());
errors = 1;
}
exit(errors);
}
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