diff options
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" |