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-rw-r--r--libio/Makefile4
-rw-r--r--libio/iofgetws.c5
-rw-r--r--libio/tst-fgetws.c185
-rw-r--r--libio/wfileops.c42
4 files changed, 208 insertions, 28 deletions
diff --git a/libio/Makefile b/libio/Makefile
index f49755e..0130234 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -47,7 +47,8 @@ routines := \
libc_fatal fmemopen
tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \
- tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-fopenloc
+ tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-fopenloc \
+ tst-fgetws
test-srcs = test-freopen
all: # Make this the default target; it will be defined in Rules.
@@ -82,6 +83,7 @@ tst_wprintf2-ARGS = "Some Text"
tst-widetext-ENV = LOCPATH=$(common-objpfx)localedata LANGUAGE=C
tst-fopenloc-ENV = LOCPATH=$(common-objpfx)localedata \
MALLOC_TRACE=$(objpfx)tst-fopenloc.mtrace
+tst-fgetws-ENV = LOCPATH=$(common-objpfx)localedata LANGUAGE=C
generated = tst-fopenloc.mtrace tst-fopenloc.check
diff --git a/libio/iofgetws.c b/libio/iofgetws.c
index b7e8352..741bb49 100644
--- a/libio/iofgetws.c
+++ b/libio/iofgetws.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 95, 96, 97, 98, 99, 2001 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
@@ -50,8 +50,7 @@ fgetws (buf, n, fp)
count = _IO_getwline (fp, buf, n - 1, L'\n', 1);
/* If we read in some bytes and errno is EAGAIN, that error will
be reported for next read. */
- if (count == 0 || ((fp->_IO_file_flags & _IO_ERR_SEEN)
- && errno != EAGAIN))
+ if (count == 0 || (_IO_ferror_unlocked (fp) && errno != EAGAIN))
result = NULL;
else
{
diff --git a/libio/tst-fgetws.c b/libio/tst-fgetws.c
new file mode 100644
index 0000000..88b6261
--- /dev/null
+++ b/libio/tst-fgetws.c
@@ -0,0 +1,185 @@
+/* Taken from the Li18nux base test suite. */
+
+#define _XOPEN_SOURCE 500
+#include <errno.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <wchar.h>
+
+#define WIDE_STR_LEN 32
+
+int
+main (int argc, char *argv[])
+{
+ int i;
+ FILE *fp;
+ wchar_t *ret, wcs[WIDE_STR_LEN];
+ int result = 0;
+ const char il_str1[] = {0xe3, 0x81, '\0'};
+ const char il_str2[] = {'0', '\n', 'A', 'B', 0xe3, 0x81, 'E', '\0'};
+ char name1[] = "/tmp/tst-fgetws.out.XXXXXX";
+ char name2[] = "/tmp/tst-fgetws.out.XXXXXX";
+ int fd;
+
+ puts ("This program runs on de_DE.UTF-8 locale.");
+ if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
+ {
+ fprintf (stderr, "Err: Cannot run on the de_DE.UTF-8 locale");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Make a file `il_str1'. */
+ fd = mkstemp (name1);
+ if (fd == -1)
+ {
+ printf ("cannot open temp file: %m\n");
+ exit (EXIT_FAILURE);
+ }
+ if ((fp = fdopen (fd, "w")) == NULL)
+ {
+ printf ("Can't open %s.\n", argv[1]);
+ exit (EXIT_FAILURE);
+ }
+ fwrite (il_str1, sizeof (char), sizeof (il_str1), fp);
+ fclose (fp);
+
+ /* Make a file `il_str2'. */
+ fd = mkstemp (name2);
+ if (fd == -1)
+ {
+ printf ("cannot open temp file: %m\n");
+ exit (EXIT_FAILURE);
+ }
+ if ((fp = fdopen (fd, "w")) == NULL)
+ {
+ fprintf (stderr, "Can't open %s.\n", argv[1]);
+ exit (EXIT_FAILURE);
+ }
+ fwrite (il_str2, sizeof (char), sizeof (il_str2), fp);
+ fclose (fp);
+
+
+ /* Test for il_str1. */
+ if ((fp = fopen (name1, "r")) == NULL)
+ {
+ fprintf (stderr, "Can't open %s.\n", argv[1]);
+ exit (EXIT_FAILURE);
+ }
+
+ puts ("--");
+ puts ("Read a byte sequence which is invalid as a wide character string.");
+ puts (" bytes: 0xe3, 0x81, '\\0'");
+
+ errno = 0;
+ ret = fgetws (wcs, WIDE_STR_LEN, fp);
+
+ if (ret == NULL)
+ {
+ puts ("Return Value: NULL");
+
+ if (errno == EILSEQ)
+ puts ("errno = EILSEQ");
+ else
+ {
+ printf ("errno = %d\n", errno);
+ result = 1;
+ }
+ }
+ else
+ {
+ printf ("Return Value: %p\n", ret);
+ for (i = 0; i < wcslen (wcs) + 1; i++)
+ printf (" wcs[%d] = %04x", i, (unsigned int)wcs[i]);
+ printf ("\n");
+ result = 1;
+ }
+
+ /* Test for il_str2. */
+ if ((fp = fopen (name2, "r")) == NULL)
+ {
+ fprintf (stderr, "Can't open %s.\n", argv[1]);
+ exit (EXIT_FAILURE);
+ }
+
+ puts ("--");
+ puts ("Read a byte sequence which is invalid as a wide character string.");
+ puts (" bytes: '0', '\\n', 'A', 'B', 0xe3, 0x81, 'c', '\\0'");
+
+ errno = 0;
+ ret = fgetws (wcs, WIDE_STR_LEN, fp);
+
+ if (ret == NULL)
+ {
+ puts ("Return Value: NULL");
+
+ if (errno == EILSEQ)
+ puts ("errno = EILSEQ");
+ else
+ printf ("errno = %d\n", errno);
+
+ result = 1;
+ }
+ else
+ {
+ int i;
+
+ printf ("Return Value: %p\n", ret);
+ for (i = 0; i < wcslen (wcs) + 1; i++)
+ printf (" wcs[%d] = 0x%04x", i, (unsigned int)wcs[i]);
+ printf ("\n");
+
+ for (i = 0; il_str2[i] != '\n'; ++i)
+ if ((wchar_t) il_str2[i] != wcs[i])
+ {
+ puts ("read string not correct");
+ result = 1;
+ break;
+ }
+ if (il_str2[i] == '\n')
+ {
+ if (wcs[i] != L'\n')
+ {
+ puts ("newline missing");
+ result = 1;
+ }
+ else if (wcs[i + 1] != L'\0')
+ {
+ puts ("read string not NUL-terminated");
+ result = 1;
+ }
+ }
+ }
+
+ puts ("\nsecond line");
+ errno = 0;
+ ret = fgetws (wcs, WIDE_STR_LEN, fp);
+
+ if (ret == NULL)
+ {
+ puts ("Return Value: NULL");
+
+ if (errno == EILSEQ)
+ puts ("errno = EILSEQ");
+ else
+ {
+ printf ("errno = %d\n", errno);
+ result = 1;
+ }
+ }
+ else
+ {
+ printf ("Return Value: %p\n", ret);
+ for (i = 0; i < wcslen (wcs) + 1; i++)
+ printf (" wcs[%d] = 0x%04x", i, (unsigned int)wcs[i]);
+ printf ("\n");
+ }
+
+ fclose (fp);
+
+ unlink (name1);
+ unlink (name2);
+
+ return result;
+}
diff --git a/libio/wfileops.c b/libio/wfileops.c
index 04a3f5e..e88c065 100644
--- a/libio/wfileops.c
+++ b/libio/wfileops.c
@@ -157,34 +157,28 @@ _IO_wfile_underflow (fp)
/* Maybe there is something left in the external buffer. */
if (fp->_IO_read_ptr < fp->_IO_read_end)
{
- /* Convert it. */
- size_t avail_bytes = fp->_IO_read_end - fp->_IO_read_ptr;
+ /* There is more in the external. Convert it. */
+ const char *read_stop = (const char *) fp->_IO_read_ptr;
- if (avail_bytes >= (*cd->__codecvt_do_max_length) (cd))
- {
- /* There is more in the external. */
- const char *read_stop = (const char *) fp->_IO_read_ptr;
-
- fp->_wide_data->_IO_last_state = fp->_wide_data->_IO_state;
- status = (*cd->__codecvt_do_in) (cd, &fp->_wide_data->_IO_state,
- fp->_IO_read_ptr, fp->_IO_read_end,
- &read_stop,
- fp->_wide_data->_IO_read_end,
- fp->_wide_data->_IO_buf_end,
- &fp->_wide_data->_IO_read_end);
+ fp->_wide_data->_IO_last_state = fp->_wide_data->_IO_state;
+ status = (*cd->__codecvt_do_in) (cd, &fp->_wide_data->_IO_state,
+ fp->_IO_read_ptr, fp->_IO_read_end,
+ &read_stop,
+ fp->_wide_data->_IO_read_end,
+ fp->_wide_data->_IO_buf_end,
+ &fp->_wide_data->_IO_read_end);
- fp->_IO_read_ptr = (char *) read_stop;
+ fp->_IO_read_ptr = (char *) read_stop;
- /* If we managed to generate some text return the next character. */
- if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end)
- return *fp->_wide_data->_IO_read_ptr;
+ /* If we managed to generate some text return the next character. */
+ if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end)
+ return *fp->_wide_data->_IO_read_ptr;
- if (status == __codecvt_error)
- {
- __set_errno (EILSEQ);
- fp->_flags |= _IO_ERR_SEEN;
- return WEOF;
- }
+ if (status == __codecvt_error)
+ {
+ __set_errno (EILSEQ);
+ fp->_flags |= _IO_ERR_SEEN;
+ return WEOF;
}
/* Move the remaining content of the read buffer to the beginning. */
generated by cgit v1.1 at 2024-12-23 10:24:35 +0000