/**
* Open a temporary file.
*
* If the file could be unlinked upon creation, the name
* of the file is not returned via 'name'. However, if the
* file could not be unlinked, the name is returned,
* expecting the caller to both delete the file and
* free the 'name' field after the file is closed.
*/
FILE *open_tmp_file(char **name)
{
FILE *file = NULL;
*name = NULL;
#if !HAVE_MKSTEMP
/* Windows does not like tmpfile(). This is likely because tmpfile()
* call unlink() on the file before returning it, to make sure the
* file is deleted when it is closed. The unlink() call also fails
* on Windows if the file is still open. */
/* also note that mkstemp is apparently a C90 replacement for tmpfile */
/* perhaps all we need to do on Windows is set TMPDIR to whatever is
stored in TEMP for tmpfile to work */
/* and finally, the "b" from "w+b" is ignored on OS X, not sure about WIN32 */
file = tmpfile();
if(file == NULL)
{
char *tmp = getenv("TEMP");
char *tmp_file = tempnam(tmp, "check_");
/*
* Note, tempnam is not enough to get a unique name. Between
* getting the name and opening the file, something else also
* calling tempnam() could get the same name. It has been observed
* on MinGW-w64 builds on Wine that this exact thing happens
* if multiple instances of a unit tests are running concurrently.
* To prevent two concurrent unit tests from getting the same file,
* we append the pid to the file. The pid should be unique on the
* system.
*/
char *uniq_tmp_file = ck_strdup_printf("%s.%d", tmp_file, getpid());
file = fopen(uniq_tmp_file, "w+b");
*name = uniq_tmp_file;
free(tmp_file);
}
#else
int fd = -1;
const char *tmp_dir = getenv ("TEMP");
if (!tmp_dir)
{
tmp_dir = ".";
}
*name = ck_strdup_printf ("%s/check_XXXXXX", tmp_dir);
if (-1 < (fd = mkstemp (*name)))
{
file = fdopen (fd, "w+b");
if (0 == unlink (*name) || NULL == file)
{
free (*name);
*name = NULL;
}
}
#endif
return file;
}
char *sr_stat_str (SRunner *sr)
{
char *str;
TestStats *ts;
ts = sr->stats;
str = ck_strdup_printf ("%d%%: Checks: %d, Failures: %d, Errors: %d",
percent_passed (ts), ts->n_checked, ts->n_failed,
ts->n_errors);
return str;
}
char *tr_short_str (TestResult *tr)
{
const char *exact_msg;
char *rstr;
exact_msg = (tr->rtype == CK_ERROR) ? "(after this point) ": "";
rstr = ck_strdup_printf ("%s:%d: %s%s",
tr->file, tr->line,
exact_msg, tr->msg);
return rstr;
}
