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/* Test the %m, %#m printf specifiers via asprintf.
Copyright (C) 2021-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <libc-diag.h>
#include <stdio.h>
#include <support/check.h>
#include <support/support.h>
/* GCC does not yet know about the %#m specifier. */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat=");
static int
do_test (void)
{
char buf[64];
errno = EINVAL;
TEST_COMPARE (sprintf (buf, "%m"), 16);
TEST_COMPARE_STRING (buf, "Invalid argument");
errno = EINVAL;
TEST_COMPARE (sprintf (buf, "%#m"), 6);
TEST_COMPARE_STRING (buf, "EINVAL");
errno = 0;
TEST_COMPARE (sprintf (buf, "%m"), 7);
TEST_COMPARE_STRING (buf, "Success");
errno = 0;
TEST_COMPARE (sprintf (buf, "%#m"), 1);
TEST_COMPARE_STRING (buf, "0");
errno = -1;
#ifdef __GNU__
TEST_COMPARE (sprintf (buf, "%m"), 39);
TEST_COMPARE_STRING (buf, "Error in unknown error system: FFFFFFFF");
#else
TEST_COMPARE (sprintf (buf, "%m"), 16);
TEST_COMPARE_STRING (buf, "Unknown error -1");
#endif
errno = -1;
TEST_COMPARE (sprintf (buf, "%#m"), 2);
TEST_COMPARE_STRING (buf, "-1");
errno = 1002003;
#ifdef __GNU__
TEST_COMPARE (sprintf (buf, "%m"), 42);
TEST_COMPARE_STRING (buf, "(system kern) error with unknown subsystem");
#else
TEST_COMPARE (sprintf (buf, "%m"), 21);
TEST_COMPARE_STRING (buf, "Unknown error 1002003");
#endif
errno = 1002003;
TEST_COMPARE (sprintf (buf, "%#m"), 7);
TEST_COMPARE_STRING (buf, "1002003");
errno = EINVAL;
TEST_COMPARE (sprintf (buf, "%20m"), 20);
TEST_COMPARE_STRING (buf, " Invalid argument");
errno = EINVAL;
TEST_COMPARE (sprintf (buf, "%#20m"), 20);
TEST_COMPARE_STRING (buf, " EINVAL");
errno = EINVAL;
TEST_COMPARE (sprintf (buf, "%-20m"), 20);
TEST_COMPARE_STRING (buf, "Invalid argument ");
errno = EINVAL;
TEST_COMPARE (sprintf (buf, "%-#20m"), 20);
TEST_COMPARE_STRING (buf, "EINVAL ");
errno = 0;
TEST_COMPARE (sprintf (buf, "%-20m"), 20);
TEST_COMPARE_STRING (buf, "Success ");
errno = 0;
TEST_COMPARE (sprintf (buf, "%-#20m"), 20);
TEST_COMPARE_STRING (buf, "0 ");
return 0;
}
#include <support/test-driver.c>
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