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-rw-r--r--libio/Makefile3
-rw-r--r--libio/freopen.c27
-rw-r--r--libio/freopen64.c10
-rw-r--r--libio/stdio.h9
-rw-r--r--libio/tst-freopen.c103
5 files changed, 138 insertions, 14 deletions
diff --git a/libio/Makefile b/libio/Makefile
index 59948668b2..f4c5095e5f 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -49,7 +49,8 @@ routines := \
tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \
tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-fopenloc \
tst-fgetws tst-ungetwc1 tst-ungetwc2 tst-swscanf tst-sscanf \
- tst-mmap-setvbuf bug-ungetwc1 bug-ungetwc2 tst-atime tst-eof
+ tst-mmap-setvbuf bug-ungetwc1 bug-ungetwc2 tst-atime tst-eof \
+ tst-freopen
test-srcs = test-freopen
all: # Make this the default target; it will be defined in Rules.
diff --git a/libio/freopen.c b/libio/freopen.c
index a38313c334..01816a179a 100644
--- a/libio/freopen.c
+++ b/libio/freopen.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993,95,96,97,98,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1993,95,96,97,98,2000,2001,2002 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
@@ -53,15 +53,26 @@ freopen (filename, mode, fp)
}
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
if (&_IO_stdin_used == NULL)
- /* If the shared C library is used by the application binary which
- was linked against the older version of libio, we just use the
- older one even for internal use to avoid trouble since a pointer
- to the old libio may be passed into shared C library and wind
- up here. */
- result = _IO_old_freopen (filename, mode, fp);
+ {
+ /* If the shared C library is used by the application binary which
+ was linked against the older version of libio, we just use the
+ older one even for internal use to avoid trouble since a pointer
+ to the old libio may be passed into shared C library and wind
+ up here. */
+ _IO_old_file_close_it (fp);
+ _IO_JUMPS ((struct _IO_FILE_plus *) fp) = &_IO_old_file_jumps;
+ result = _IO_old_file_fopen (fp, filename, mode);
+ }
else
#endif
- result = _IO_freopen (filename, mode, fp);
+ {
+ INTUSE(_IO_file_close_it) (fp);
+ _IO_JUMPS ((struct _IO_FILE_plus *) fp) = &INTUSE(_IO_file_jumps);
+ fp->_wide_data->_wide_vtable = &INTUSE(_IO_wfile_jumps);
+ result = INTUSE(_IO_file_fopen) (fp, filename, mode, 1);
+ if (result != NULL)
+ result = __fopen_maybe_mmap (result);
+ }
if (result != NULL)
/* unbound stream orientation */
result->_mode = 0;
diff --git a/libio/freopen64.c b/libio/freopen64.c
index 941eda0aa9..7ab9bd315a 100644
--- a/libio/freopen64.c
+++ b/libio/freopen64.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993,1995,1996,1997,1998,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1993,1995,1996,1997,1998,2000,2001,2002
+ 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
@@ -51,7 +52,12 @@ freopen64 (filename, mode, fp)
if (fd != -1)
filename = fd_to_filename (fd);
}
- result = _IO_freopen64 (filename, mode, fp);
+ INTUSE(_IO_file_close_it) (fp);
+ _IO_JUMPS ((struct _IO_FILE_plus *) fp) = &INTUSE(_IO_file_jumps);
+ fp->_wide_data->_wide_vtable = &INTUSE(_IO_wfile_jumps);
+ result = INTUSE(_IO_file_fopen) (fp, filename, mode, 0);
+ if (result != NULL)
+ result = __fopen_maybe_mmap (result);
if (result != NULL)
/* unbound stream orientation */
result->_mode = 0;
diff --git a/libio/stdio.h b/libio/stdio.h
index 47f80d88c8..bcdf64d72e 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -1,5 +1,6 @@
/* Define ISO C stdio on top of C++ iostreams.
- Copyright (C) 1991, 1994-1999, 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1994-1999, 2000, 2001, 2002
+ 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
@@ -595,10 +596,12 @@ struct obstack; /* See <obstack.h>. */
/* Write formatted output to an obstack. */
extern int obstack_printf (struct obstack *__restrict __obstack,
- __const char *__restrict __format, ...) __THROW;
+ __const char *__restrict __format, ...)
+ __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
extern int obstack_vprintf (struct obstack *__restrict __obstack,
__const char *__restrict __format,
- _G_va_list __args) __THROW;
+ _G_va_list __args)
+ __THROW __attribute__ ((__format__ (__printf__, 2, 0)));
#endif /* Use GNU. */
diff --git a/libio/tst-freopen.c b/libio/tst-freopen.c
new file mode 100644
index 0000000000..20e5f2f874
--- /dev/null
+++ b/libio/tst-freopen.c
@@ -0,0 +1,103 @@
+/* Test freopen with mmap stdio.
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int main (void)
+{
+ char name[] = "/tmp/tst-freopen.XXXXXX";
+ char buf[4096];
+ const char * const test = "Let's test freopen.\n";
+ char temp[strlen (test) + 1];
+ int fd = mkstemp (name);
+ FILE *f;
+
+ if (fd == -1)
+ {
+ printf ("%Zd: cannot open temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ f = fdopen (fd, "w");
+ if (f == NULL)
+ {
+ printf ("%Zd: cannot fdopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ fputs (test, f);
+ fclose (f);
+
+ f = fopen (name, "r");
+ if (f == NULL)
+ {
+ printf ("%Zd: cannot fopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (fread (temp, 1, strlen (test), f) != strlen (test))
+ {
+ printf ("%Zd: couldn't read the file back: %m\n", __LINE__);
+ exit (1);
+ }
+ temp [strlen (test)] = '\0';
+
+ if (strcmp (test, temp))
+ {
+ printf ("%Zd: read different string than was written:\n%s%s",
+ __LINE__, test, temp);
+ exit (1);
+ }
+
+ f = freopen (name, "r+", f);
+ if (f == NULL)
+ {
+ printf ("%Zd: cannot freopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (fseek (f, 0, SEEK_SET) != 0)
+ {
+ printf ("%Zd: couldn't fseek to start: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (fread (temp, 1, strlen (test), f) != strlen (test))
+ {
+ printf ("%Zd: couldn't read the file back: %m\n", __LINE__);
+ exit (1);
+ }
+ temp [strlen (test)] = '\0';
+
+ if (strcmp (test, temp))
+ {
+ printf ("%Zd: read different string than was written:\n%s%s",
+ __LINE__, test, temp);
+ exit (1);
+ }
+
+ fclose (f);
+
+ unlink (name);
+ exit (0);
+}