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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/stdio-common/test-vfprintf.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.gz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.xz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.zip |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/stdio-common/test-vfprintf.c')
-rw-r--r-- | REORG.TODO/stdio-common/test-vfprintf.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/test-vfprintf.c b/REORG.TODO/stdio-common/test-vfprintf.c new file mode 100644 index 0000000000..f8bb9cee58 --- /dev/null +++ b/REORG.TODO/stdio-common/test-vfprintf.c @@ -0,0 +1,136 @@ +/* Tests of *printf for very large strings. + Copyright (C) 2000-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2000. + + 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 + <http://www.gnu.org/licenses/>. */ + +#include <locale.h> +#include <mcheck.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/stat.h> +#include <libc-diag.h> + + +const char *locs[] = +{ + "C", "de_DE.ISO-8859-1", "de_DE.UTF-8", "ja_JP.EUC-JP" +}; +#define nlocs (sizeof (locs) / sizeof (locs[0])) + + +char large[50000]; + +static int +do_test (void) +{ + char buf[25]; + size_t i; + int res = 0; + int fd; + + mtrace (); + + strcpy (buf, "/tmp/test-vfprintfXXXXXX"); + fd = mkstemp (buf); + if (fd == -1) + { + printf ("cannot open temporary file: %m\n"); + exit (1); + } + unlink (buf); + + for (i = 0; i < nlocs; ++i) + { + FILE *fp; + struct stat st; + int fd2; + + setlocale (LC_ALL, locs[i]); + + memset (large, '\1', sizeof (large)); + large[sizeof (large) - 1] = '\0'; + + fd2 = dup (fd); + if (fd2 == -1) + { + printf ("cannot dup for locale %s: %m\n", + setlocale (LC_ALL, NULL)); + exit (1); + } + + if (ftruncate (fd2, 0) != 0) + { + printf ("cannot truncate file for locale %s: %m\n", + setlocale (LC_ALL, NULL)); + exit (1); + } + + fp = fdopen (fd2, "a"); + if (fp == NULL) + { + printf ("cannot create FILE for locale %s: %m\n", + setlocale (LC_ALL, NULL)); + exit (1); + } + + fprintf (fp, "%s", large); + fprintf (fp, "%.*s", 30000, large); + large[20000] = '\0'; + /* We're testing a large format string here and need to generate it + to avoid this source file being ridiculous. So disable the warning + about a generated format string. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-security"); + fprintf (fp, large); + DIAG_POP_NEEDS_COMMENT; + fprintf (fp, "%-1.300000000s", "hello"); + + if (fflush (fp) != 0 || ferror (fp) != 0 || fclose (fp) != 0) + { + printf ("write error for locale %s: %m\n", + setlocale (LC_ALL, NULL)); + exit (1); + } + + if (fstat (fd, &st) != 0) + { + printf ("cannot stat for locale %s: %m\n", + setlocale (LC_ALL, NULL)); + exit (1); + } + else if (st.st_size != 50000 + 30000 + 19999 + 5) + { + printf ("file size incorrect for locale %s: %jd instead of %jd\n", + setlocale (LC_ALL, NULL), + (intmax_t) st.st_size, + (intmax_t) 50000 + 30000 + 19999 + 5); + res = 1; + } + else + printf ("locale %s OK\n", setlocale (LC_ALL, NULL)); + } + + close (fd); + + return res; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |