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msvcirt: Allocate a buffer if necessary when a file is opened.

This commit is contained in:
Iván Matellanes 2015-08-10 20:08:54 +02:00 committed by Alexandre Julliard
parent c4cd981a61
commit cac27a40d8
2 changed files with 3 additions and 0 deletions
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1
dlls/msvcirt/msvcirt.c
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@ -973,6 +973,7 @@ filebuf* __thiscall filebuf_open(filebuf *this, const char *name, ios_open_mode
_close(fd);
} else
this->fd = fd;
streambuf_allocate(&this->base);
streambuf_unlock(&this->base);
return (this->fd == -1) ? NULL : this;
}

2
dlls/msvcirt/tests/msvcirt.c
View File

@ -1016,9 +1016,11 @@ static void test_filebuf(void)
pret = (filebuf*) call_func4(p_filebuf_open, &fb1, filename1,
OPENMODE_ate|OPENMODE_nocreate|OPENMODE_noreplace|OPENMODE_binary, filebuf_openprot);
ok(pret == NULL, "wrong return, expected %p got %p\n", NULL, pret);
ok(fb1.base.allocated == 0, "wrong allocate value, expected 0 got %d\n", fb1.base.allocated);
fb1.base.do_lock = 0;
pret = (filebuf*) call_func4(p_filebuf_open, &fb1, filename1, OPENMODE_out, filebuf_openprot);
ok(pret == &fb1, "wrong return, expected %p got %p\n", &fb1, pret);
ok(fb1.base.allocated == 1, "wrong allocate value, expected 1 got %d\n", fb1.base.allocated);
ok(_write(fb1.fd, "testing", 7) == 7, "_write failed\n");
pret = (filebuf*) call_func1(p_filebuf_close, &fb1);
ok(pret == &fb1, "wrong return, expected %p got %p\n", &fb1, pret);