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tst-ftell-active-handler: Open file with O_TRUNC for w modes

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The test case fails to truncate the file when a file is intended to be
opened in w or w+ mode.  Add O_TRUNC to fix this.  The test still
succeeds with this change.
This commit is contained in:
Siddhesh Poyarekar 2014-12-04 08:11:07 +05:30
parent be349d7042
commit 61b4f792e0
2 changed files with 14 additions and 8 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
2914-12-04 Siddhesh Poyarekar <siddhesh@redhat.com>
* libio/tst-ftell-active-handler.c (do_ftruncate_test): Add
O_TRUNC flag for w and w+ modes.
(do_rewind_test): Likewise.
(do_ftell_test): Likewise.
(do_write_test): Likewise.
[BZ #17647]
* libio/fileops.c (do_ftell): Seek only when there are
unflushed writes.

16
libio/tst-ftell-active-handler.c
View File

@ -104,8 +104,8 @@ do_ftruncate_test (const char *filename)
int fd_mode;
} test_modes[] = {
{"r+", O_RDWR},
{"w", O_WRONLY},
{"w+", O_RDWR},
{"w", O_WRONLY | O_TRUNC},
{"w+", O_RDWR | O_TRUNC},
{"a", O_WRONLY},
{"a+", O_RDWR}
};
@ -189,8 +189,8 @@ do_rewind_test (const char *filename)
size_t old_off;
size_t new_off;
} test_modes[] = {
{"w", O_WRONLY, 0, data_len},
{"w+", O_RDWR, 0, data_len},
{"w", O_WRONLY | O_TRUNC, 0, data_len},
{"w+", O_RDWR | O_TRUNC, 0, data_len},
{"r+", O_RDWR, 0, data_len},
/* The new offsets for 'a' and 'a+' modes have to factor in the
previous writes since they always append to the end of the
@ -294,8 +294,8 @@ do_ftell_test (const char *filename)
/* In w, w+ and r+ modes, the file position should be at the
beginning of the file. After the write, the offset should be
updated to data_len. */
{"w", O_WRONLY, 0, data_len},
{"w+", O_RDWR, 0, data_len},
{"w", O_WRONLY | O_TRUNC, 0, data_len},
{"w+", O_RDWR | O_TRUNC, 0, data_len},
{"r+", O_RDWR, 0, data_len},
/* For the 'a' mode, the initial file position should be the
current end of file. After the write, the offset has data_len
@ -375,8 +375,8 @@ do_write_test (const char *filename)
const char *mode;
int fd_mode;
} test_modes[] = {
{"w", O_WRONLY},
{"w+", O_RDWR},
{"w", O_WRONLY | O_TRUNC},
{"w+", O_RDWR | O_TRUNC},
{"r+", O_RDWR}
};