diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | libio/Makefile | 2 | ||||
| -rw-r--r-- | libio/bug-fclose1.c | 132 | ||||
| -rw-r--r-- | libio/fileops.c | 14 |
4 files changed, 11 insertions, 144 deletions
@@ -1,3 +1,10 @@ +2012-12-01 Mike Frysinger <vapier@gentoo.org> + + * libio/fileops.c (_IO_new_file_close_it): Do not always flush + when currently writing and seek to current position when not. + * libio/Makefile (tests): Remove bug-fclose1. + * libio/bug-fclose1.c: Delete. + 2012-12-01 Joseph Myers <joseph@codesourcery.com> * manual/arith.texi (feenableexcept): Fix typo. diff --git a/libio/Makefile b/libio/Makefile index 83d90d0a97..379d5f790f 100644 --- a/libio/Makefile +++ b/libio/Makefile @@ -59,7 +59,7 @@ 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-fseek \ + tst-setvbuf1 tst-popen1 tst-fgetwc bug-wsetpos tst-fseek \ tst-fwrite-error ifeq (yes,$(build-shared)) # Add test-fopenloc only if shared library is enabled since it depends on diff --git a/libio/bug-fclose1.c b/libio/bug-fclose1.c deleted file mode 100644 index f1e09f5d47..0000000000 --- a/libio/bug-fclose1.c +++ /dev/null @@ -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; -} diff --git a/libio/fileops.c b/libio/fileops.c index fb6ac17b64..09d689dbb3 100644 --- a/libio/fileops.c +++ b/libio/fileops.c @@ -155,21 +155,13 @@ 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; |