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-rw-r--r--libio/iovsscanf.c12
-rw-r--r--libio/iovswscanf.c14
-rw-r--r--libio/libio.h1
-rw-r--r--libio/libioP.h22
-rw-r--r--libio/strfile.h33
-rw-r--r--libio/swscanf.c10
-rw-r--r--libio/vscanf.c2
-rw-r--r--libio/vwscanf.c2
-rw-r--r--libio/wscanf.c2
9 files changed, 68 insertions, 30 deletions
diff --git a/libio/iovsscanf.c b/libio/iovsscanf.c
index e56ab8b..ee6a99e 100644
--- a/libio/iovsscanf.c
+++ b/libio/iovsscanf.c
@@ -24,22 +24,14 @@
This exception applies to code released by its copyright holders
in files containing the exception. */
-#include "libioP.h"
#include "strfile.h"
int
_IO_vsscanf (const char *string, const char *format, va_list args)
{
- int ret;
_IO_strfile sf;
-#ifdef _IO_MTSAFE_IO
- sf._sbf._f._lock = NULL;
-#endif
- _IO_no_init (&sf._sbf._f, _IO_USER_LOCK, -1, NULL, NULL);
- _IO_JUMPS (&sf._sbf) = &_IO_str_jumps;
- _IO_str_init_static_internal (&sf, (char*)string, 0, NULL);
- ret = _IO_vfscanf (&sf._sbf._f, format, args, NULL);
- return ret;
+ FILE *f = _IO_strfile_read (&sf, string);
+ return __vfscanf_internal (f, format, args, 0);
}
ldbl_weak_alias (_IO_vsscanf, __vsscanf)
ldbl_weak_alias (_IO_vsscanf, vsscanf)
diff --git a/libio/iovswscanf.c b/libio/iovswscanf.c
index 5bd1c88..cb9cbe1 100644
--- a/libio/iovswscanf.c
+++ b/libio/iovswscanf.c
@@ -24,24 +24,16 @@
This exception applies to code released by its copyright holders
in files containing the exception. */
-#include "libioP.h"
-#include "strfile.h"
#include <wchar.h>
+#include "strfile.h"
int
__vswscanf (const wchar_t *string, const wchar_t *format, va_list args)
{
- int ret;
_IO_strfile sf;
struct _IO_wide_data wd;
-#ifdef _IO_MTSAFE_IO
- sf._sbf._f._lock = NULL;
-#endif
- _IO_no_init (&sf._sbf._f, _IO_USER_LOCK, 0, &wd, &_IO_wstr_jumps);
- _IO_fwide (&sf._sbf._f, 1);
- _IO_wstr_init_static (&sf._sbf._f, (wchar_t *)string, 0, NULL);
- ret = _IO_vfwscanf ((FILE *) &sf._sbf, format, args, NULL);
- return ret;
+ FILE *f = _IO_strfile_readw (&sf, &wd, string);
+ return __vfwscanf_internal (f, format, args, 0);
}
libc_hidden_def (__vswscanf)
ldbl_hidden_def (__vswscanf, vswscanf)
diff --git a/libio/libio.h b/libio/libio.h
index 00f9169..d4eba2d 100644
--- a/libio/libio.h
+++ b/libio/libio.h
@@ -321,7 +321,6 @@ libc_hidden_proto (_IO_padn)
libc_hidden_proto (_IO_putc)
libc_hidden_proto (_IO_sgetn)
libc_hidden_proto (_IO_vfprintf)
-libc_hidden_proto (_IO_vfscanf)
#ifdef _IO_MTSAFE_IO
# undef _IO_peekc
diff --git a/libio/libioP.h b/libio/libioP.h
index df2633d..525dce1 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -704,6 +704,28 @@ extern off64_t _IO_seekpos_unlocked (FILE *, off64_t, int)
#endif /* _G_HAVE_MMAP */
+/* Flags for __vfscanf_internal and __vfwscanf_internal.
+
+ SCANF_LDBL_IS_DBL indicates whether long double values are to be
+ handled as having the same format as double, in which case the flag
+ should be set to one, or as another format, otherwise.
+
+ SCANF_ISOC99_A, when set to one, indicates that the ISO C99 or POSIX
+ behavior of the scanf functions is to be used, i.e. automatic
+ allocation for input strings with %as, %aS and %a[, a GNU extension,
+ is disabled. This is the behavior that the __isoc99_scanf family of
+ functions use. When the flag is set to zero, automatic allocation is
+ enabled. */
+#define SCANF_LDBL_IS_DBL 0x0001
+#define SCANF_ISOC99_A 0x0002
+
+extern int __vfscanf_internal (FILE *fp, const char *format, va_list argp,
+ unsigned int flags)
+ attribute_hidden;
+extern int __vfwscanf_internal (FILE *fp, const wchar_t *format, va_list argp,
+ unsigned int flags)
+ attribute_hidden;
+
extern int _IO_vscanf (const char *, va_list) __THROW;
#ifdef _IO_MTSAFE_IO
diff --git a/libio/strfile.h b/libio/strfile.h
index 75caac2..e51ac34 100644
--- a/libio/strfile.h
+++ b/libio/strfile.h
@@ -24,7 +24,9 @@
This exception applies to code released by its copyright holders
in files containing the exception. */
-#include <stdio.h>
+#ifndef STRFILE_H_
+#define STRFILE_H_
+
#include "libioP.h"
typedef void *(*_IO_alloc_type) (size_t);
@@ -80,3 +82,32 @@ typedef struct
} _IO_wstrnfile;
extern const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden;
+
+/* Initialize an _IO_strfile SF to read from narrow string STRING, and
+ return the corresponding FILE object. It is not necessary to fclose
+ the FILE when it is no longer needed. */
+static inline FILE *
+_IO_strfile_read (_IO_strfile *sf, const char *string)
+{
+ sf->_sbf._f._lock = NULL;
+ _IO_no_init (&sf->_sbf._f, _IO_USER_LOCK, -1, NULL, NULL);
+ _IO_JUMPS (&sf->_sbf) = &_IO_str_jumps;
+ _IO_str_init_static_internal (sf, (char*)string, 0, NULL);
+ return &sf->_sbf._f;
+}
+
+/* Initialize an _IO_strfile SF and _IO_wide_data WD to read from wide
+ string STRING, and return the corresponding FILE object. It is not
+ necessary to fclose the FILE when it is no longer needed. */
+static inline FILE *
+_IO_strfile_readw (_IO_strfile *sf, struct _IO_wide_data *wd,
+ const wchar_t *string)
+{
+ sf->_sbf._f._lock = NULL;
+ _IO_no_init (&sf->_sbf._f, _IO_USER_LOCK, 0, wd, &_IO_wstr_jumps);
+ _IO_fwide (&sf->_sbf._f, 1);
+ _IO_wstr_init_static (&sf->_sbf._f, (wchar_t *)string, 0, NULL);
+ return &sf->_sbf._f;
+}
+
+#endif /* strfile.h. */
diff --git a/libio/swscanf.c b/libio/swscanf.c
index c8686bc..90f721c 100644
--- a/libio/swscanf.c
+++ b/libio/swscanf.c
@@ -15,20 +15,22 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#include <libioP.h>
#include <stdarg.h>
-#include <wchar.h>
+#include "strfile.h"
/* Read formatted input from S, according to the format string FORMAT. */
-/* VARARGS2 */
+
int
__swscanf (const wchar_t *s, const wchar_t *format, ...)
{
va_list arg;
int done;
+ _IO_strfile sf;
+ struct _IO_wide_data wd;
+ FILE *f = _IO_strfile_readw (&sf, &wd, s);
va_start (arg, format);
- done = __vswscanf (s, format, arg);
+ done = __vfwscanf_internal (f, format, arg, 0);
va_end (arg);
return done;
diff --git a/libio/vscanf.c b/libio/vscanf.c
index 9c27122..a3e2dd4 100644
--- a/libio/vscanf.c
+++ b/libio/vscanf.c
@@ -32,6 +32,6 @@
int
_IO_vscanf (const char *format, va_list args)
{
- return _IO_vfscanf (_IO_stdin, format, args, NULL);
+ return __vfscanf_internal (_IO_stdin, format, args, 0);
}
ldbl_weak_alias (_IO_vscanf, vscanf)
diff --git a/libio/vwscanf.c b/libio/vwscanf.c
index 0d5f558..7af770c 100644
--- a/libio/vwscanf.c
+++ b/libio/vwscanf.c
@@ -30,6 +30,6 @@
int
__vwscanf (const wchar_t *format, va_list args)
{
- return _IO_vfwscanf (_IO_stdin, format, args, NULL);
+ return __vfwscanf_internal (_IO_stdin, format, args, 0);
}
ldbl_strong_alias (__vwscanf, vwscanf)
diff --git a/libio/wscanf.c b/libio/wscanf.c
index c8cdad0..fe27ff6 100644
--- a/libio/wscanf.c
+++ b/libio/wscanf.c
@@ -30,7 +30,7 @@ __wscanf (const wchar_t *format, ...)
int done;
va_start (arg, format);
- done = _IO_vfwscanf (stdin, format, arg, NULL);
+ done = __vfwscanf_internal (stdin, format, arg, 0);
va_end (arg);
return done;
generated by cgit v1.1 at 2024-07-29 11:36:06 +0000