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d2b1af4305
This patch checks _dl_debug_vdprintf, by passing various inputs to _dl_dprintf and comparing the output with invocations of snprintf. Signed-off-by: Roy Eldar <royeldar0@gmail.com> Reviewed-by: Florian Weimer <fweimer@redhat.com>
79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/* Check _dl_debug_vdprintf.
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Copyright The GNU Toolchain Authors.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <ldsodefs.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <support/check.h>
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#include <support/xunistd.h>
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#define BUFSZ 64
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#define TEST(fmt, ...) \
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do \
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{ \
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char str1[BUFSZ], str2[BUFSZ]; \
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int len1 = snprintf (str1, BUFSZ, fmt, __VA_ARGS__); \
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TEST_VERIFY_EXIT (len1 >= 0); \
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TEST_VERIFY_EXIT (len1 < BUFSZ); \
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_dl_dprintf (fds[1], fmt, __VA_ARGS__); \
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ssize_t len2 = read (fds[0], str2, BUFSZ); \
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TEST_VERIFY_EXIT (len2 >= 0); \
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TEST_VERIFY_EXIT (len2 < BUFSZ); \
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str2[len2] = '\0'; \
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TEST_COMPARE_STRING (str1, str2); \
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} \
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while (0)
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static int
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do_test (void)
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{
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int fds[2];
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xpipe (fds);
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TEST ("%d", 0);
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TEST ("%d", 1);
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TEST ("%d", INT_MAX);
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TEST ("%d", -1);
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TEST ("%d", INT_MIN + 1);
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TEST ("%d", INT_MIN);
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TEST ("%u", 0U);
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TEST ("%u", 1U);
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TEST ("%u", UINT_MAX);
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TEST ("%x", 0);
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TEST ("%x", 1);
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TEST ("%x", UINT_MAX);
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TEST ("%ld", 0L);
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TEST ("%ld", 1L);
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TEST ("%ld", LONG_MAX);
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TEST ("%ld", -1L);
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TEST ("%ld", LONG_MIN + 1);
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TEST ("%ld", LONG_MIN);
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TEST ("%lu", 0UL);
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TEST ("%lu", 1UL);
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TEST ("%lu", ULONG_MAX);
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TEST ("%lx", 0UL);
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TEST ("%lx", 1UL);
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TEST ("%lx", ULONG_MAX);
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xclose (fds[0]);
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xclose (fds[1]);
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return 0;
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}
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#include <support/test-driver.c>
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