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/*
* mkstemp test suite.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Written by Russ Allbery <eagle@eyrie.org>
* Copyright 2009, 2011
* The Board of Trustees of the Leland Stanford Junior University
*
* Copying and distribution of this file, with or without modification, are
* permitted in any medium without royalty provided the copyright notice and
* this notice are preserved. This file is offered as-is, without any
* warranty.
*
* SPDX-License-Identifier: FSFAP
*/
#include <config.h>
#include <portable/system.h>
#include <errno.h>
#include <sys/stat.h>
#include <tests/tap/basic.h>
int test_mkstemp(char *template);
int
main(void)
{
int fd;
char template[] = "tsXXXXXXX";
char tooshort[] = "XXXXX";
char bad1[] = "/foo/barXXXXX";
char bad2[] = "/foo/barXXXXXX.out";
char buffer[256];
struct stat st1, st2;
ssize_t length;
plan(20);
/* First, test a few error messages. */
errno = 0;
is_int(-1, test_mkstemp(tooshort), "too short of template");
is_int(EINVAL, errno, "...with correct errno");
is_string("XXXXX", tooshort, "...and template didn't change");
errno = 0;
is_int(-1, test_mkstemp(bad1), "bad template");
is_int(EINVAL, errno, "...with correct errno");
is_string("/foo/barXXXXX", bad1, "...and template didn't change");
errno = 0;
is_int(-1, test_mkstemp(bad2), "template doesn't end in XXXXXX");
is_int(EINVAL, errno, "...with correct errno");
is_string("/foo/barXXXXXX.out", bad2, "...and template didn't change");
errno = 0;
/* Now try creating a real file. */
fd = test_mkstemp(template);
ok(fd >= 0, "mkstemp works with valid template");
ok(strcmp(template, "tsXXXXXXX") != 0, "...and template changed");
ok(strncmp(template, "tsX", 3) == 0, "...and didn't touch first X");
ok(access(template, F_OK) == 0, "...and the file exists");
/* Make sure that it's the same file as template refers to now. */
ok(stat(template, &st1) == 0, "...and stat of template works");
ok(fstat(fd, &st2) == 0, "...and stat of open file descriptor works");
ok(st1.st_ino == st2.st_ino, "...and they're the same file");
unlink(template);
/* Make sure the open mode is correct. */
length = strlen(template);
is_int(length, write(fd, template, length), "write to open file works");
ok(lseek(fd, 0, SEEK_SET) == 0, "...and rewind works");
is_int(length, read(fd, buffer, length), "...and the data is there");
buffer[length] = '\0';
is_string(template, buffer, "...and matches what we wrote");
close(fd);
return 0;
}
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