@@ -, +, @@ 2011-05-12 Ulrich Drepper [BZ #12511] --- b/libio/Makefile +++ b/libio/Makefile @@ -1,4 +1,4 @@ -# Copyright (C) 1995-2004,2006-2009,2011 Free Software Foundation, Inc. +# Copyright (C) 1995-2004,2006,2007,2008,2009 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 @@ -58,7 +58,7 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \ tst-memstream1 tst-memstream2 \ tst-wmemstream1 tst-wmemstream2 \ bug-memstream1 bug-wmemstream1 \ - tst-setvbuf1 tst-popen1 tst-fgetwc bug-wsetpos bug-fclose1 + tst-setvbuf1 tst-popen1 tst-fgetwc bug-wsetpos test-srcs = test-freopen all: # Make this the default target; it will be defined in Rules. --- b/libio/bug-fclose1.c +++ b/libio/bug-fclose1.c @@ -1,132 +0,0 @@ -// BZ #12724 - -static void do_prepare (void); -#define PREPARE(argc, argv) do_prepare () -static int do_test (void); -#define TEST_FUNCTION do_test() -#include "../test-skeleton.c" - - -static int fd; - - -static void -do_prepare (void) -{ - fd = create_temp_file ("bug-fclose1.", NULL); - if (fd == -1) - { - printf ("cannot create temporary file: %m\n"); - exit (1); - } -} - - -static int -do_test (void) -{ - static const char pattern[] = "hello world"; - - /* Prepare a seekable file. */ - if (write (fd, pattern, sizeof pattern) != sizeof pattern) - { - printf ("cannot write pattern: %m\n"); - return 1; - } - if (lseek (fd, 1, SEEK_SET) != 1) - { - printf ("cannot seek after write: %m\n"); - return 1; - } - - /* Create an output stream visiting the file; when it is closed, all - other file descriptors visiting the file must see the new file - position. */ - int fd2 = dup (fd); - if (fd2 < 0) - { - printf ("cannot duplicate descriptor for writing: %m\n"); - return 1; - } - FILE *f = fdopen (fd2, "w"); - if (f == NULL) - { - printf ("first fdopen failed: %m\n"); - return 1; - } - if (fputc (pattern[1], f) != pattern[1]) - { - printf ("fputc failed: %m\n"); - return 1; - } - if (fclose (f) != 0) - { - printf ("first fclose failed: %m\n"); - return 1; - } - errno = 0; - if (lseek (fd2, 0, SEEK_CUR) != -1) - { - printf ("lseek after fclose after write did not fail\n"); - return 1; - } - if (errno != EBADF) - { - printf ("lseek after fclose after write did not fail with EBADF: %m\n"); - return 1; - } - off_t o = lseek (fd, 0, SEEK_CUR); - if (o != 2) - { - printf ("\ -lseek on original descriptor after first fclose returned %ld, expected 2\n", - (long int) o); - return 1; - } - - /* Likewise for an input stream. */ - fd2 = dup (fd); - if (fd2 < 0) - { - printf ("cannot duplicate descriptor for reading: %m\n"); - return 1; - } - f = fdopen (fd2, "r"); - if (f == NULL) - { - printf ("second fdopen failed: %m\n"); - return 1; - } - char c = fgetc (f); - if (c != pattern[2]) - { - printf ("getc returned %c, expected %c\n", c, pattern[2]); - return 1; - } - if (fclose (f) != 0) - { - printf ("second fclose failed: %m\n"); - return 1; - } - errno = 0; - if (lseek (fd2, 0, SEEK_CUR) != -1) - { - printf ("lseek after fclose after read did not fail\n"); - return 1; - } - if (errno != EBADF) - { - printf ("lseek after fclose after read did not fail with EBADF: %m\n"); - return 1; - } - o = lseek (fd, 0, SEEK_CUR); - if (o != 3) - { - printf ("\ -lseek on original descriptor after second fclose returned %ld, expected 3\n", - (long int) o); - return 1; - } - - return 0; -} --- glibc-2.14/libio/fileops.c +++ glibc-2.14/libio/fileops.c @@ -160,28 +160,20 @@ int _IO_new_file_close_it (fp) _IO_FILE *fp; { + int write_status; if (!_IO_file_is_open (fp)) return EOF; - int write_status; - if (_IO_in_put_mode (fp)) + if ((fp->_flags & _IO_NO_WRITES) == 0 + && (fp->_flags & _IO_CURRENTLY_PUTTING) != 0) write_status = _IO_do_flush (fp); - else if (fp->_offset != _IO_pos_BAD && fp->_IO_read_base != NULL - && !_IO_in_backup (fp)) - { - off64_t o = _IO_SEEKOFF (fp, 0, _IO_seek_cur, 0); - if (o == WEOF) - write_status = EOF; - else - write_status = _IO_SYSSEEK (fp, o, SEEK_SET) < 0 ? EOF : 0; - } else write_status = 0; INTUSE(_IO_unsave_markers) (fp); int close_status = ((fp->_flags2 & _IO_FLAGS2_NOCLOSE) == 0 ? _IO_SYSCLOSE (fp) : 0); /* Free buffer. */ #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T