summaryrefslogtreecommitdiff
path: root/libio
diff options
context:
space:
mode:
Diffstat (limited to 'libio')
-rw-r--r--libio/memstream.c4
-rw-r--r--libio/strfile.h11
-rw-r--r--libio/strops.c14
-rw-r--r--libio/vasprintf.c4
-rw-r--r--libio/wmemstream.c4
-rw-r--r--libio/wstrops.c16
6 files changed, 23 insertions, 30 deletions
diff --git a/libio/memstream.c b/libio/memstream.c
index 8d2726dea3..b5eaa5476c 100644
--- a/libio/memstream.c
+++ b/libio/memstream.c
@@ -90,8 +90,8 @@ __open_memstream (char **bufloc, size_t *sizeloc)
_IO_JUMPS_FILE_plus (&new_f->fp._sf._sbf) = &_IO_mem_jumps;
_IO_str_init_static_internal (&new_f->fp._sf, buf, BUFSIZ, buf);
new_f->fp._sf._sbf._f._flags &= ~_IO_USER_BUF;
- new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc;
- new_f->fp._sf._s._free_buffer = (_IO_free_type) free;
+ new_f->fp._sf._s._allocate_buffer_unused = (_IO_alloc_type) malloc;
+ new_f->fp._sf._s._free_buffer_unused = (_IO_free_type) free;
new_f->fp.bufloc = bufloc;
new_f->fp.sizeloc = sizeloc;
diff --git a/libio/strfile.h b/libio/strfile.h
index 46ac81809a..75caac2af5 100644
--- a/libio/strfile.h
+++ b/libio/strfile.h
@@ -32,8 +32,11 @@ typedef void (*_IO_free_type) (void*);
struct _IO_str_fields
{
- _IO_alloc_type _allocate_buffer;
- _IO_free_type _free_buffer;
+ /* These members are preserved for ABI compatibility. The glibc
+ implementation always calls malloc/free for user buffers if
+ _IO_USER_BUF or _IO_FLAGS2_USER_WBUF are not set. */
+ _IO_alloc_type _allocate_buffer_unused;
+ _IO_free_type _free_buffer_unused;
};
/* This is needed for the Irix6 N32 ABI, which has a 64 bit off_t type,
@@ -53,10 +56,6 @@ typedef struct _IO_strfile_
struct _IO_str_fields _s;
} _IO_strfile;
-/* dynamic: set when the array object is allocated (or reallocated) as
- necessary to hold a character sequence that can change in length. */
-#define _IO_STR_DYNAMIC(FP) ((FP)->_s._allocate_buffer != (_IO_alloc_type)0)
-
/* frozen: set when the program has requested that the array object not
be altered, reallocated, or freed. */
#define _IO_STR_FROZEN(FP) ((FP)->_f._flags & _IO_USER_BUF)
diff --git a/libio/strops.c b/libio/strops.c
index eddd722c09..df8268b7ab 100644
--- a/libio/strops.c
+++ b/libio/strops.c
@@ -61,7 +61,7 @@ _IO_str_init_static_internal (_IO_strfile *sf, char *ptr, size_t size,
fp->_IO_read_end = end;
}
/* A null _allocate_buffer function flags the strfile as being static. */
- sf->_s._allocate_buffer = (_IO_alloc_type) 0;
+ sf->_s._allocate_buffer_unused = (_IO_alloc_type) 0;
}
void
@@ -103,8 +103,7 @@ _IO_str_overflow (FILE *fp, int c)
size_t new_size = 2 * old_blen + 100;
if (new_size < old_blen)
return EOF;
- new_buf
- = (char *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (new_size);
+ new_buf = malloc (new_size);
if (new_buf == NULL)
{
/* __ferror(fp) = 1; */
@@ -113,7 +112,7 @@ _IO_str_overflow (FILE *fp, int c)
if (old_buf)
{
memcpy (new_buf, old_buf, old_blen);
- (*((_IO_strfile *) fp)->_s._free_buffer) (old_buf);
+ free (old_buf);
/* Make sure _IO_setb won't try to delete _IO_buf_base. */
fp->_IO_buf_base = NULL;
}
@@ -182,15 +181,14 @@ enlarge_userbuf (FILE *fp, off64_t offset, int reading)
size_t newsize = offset + 100;
char *oldbuf = fp->_IO_buf_base;
- char *newbuf
- = (char *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (newsize);
+ char *newbuf = malloc (newsize);
if (newbuf == NULL)
return 1;
if (oldbuf != NULL)
{
memcpy (newbuf, oldbuf, _IO_blen (fp));
- (*((_IO_strfile *) fp)->_s._free_buffer) (oldbuf);
+ free (oldbuf);
/* Make sure _IO_setb won't try to delete
_IO_buf_base. */
fp->_IO_buf_base = NULL;
@@ -346,7 +344,7 @@ void
_IO_str_finish (FILE *fp, int dummy)
{
if (fp->_IO_buf_base && !(fp->_flags & _IO_USER_BUF))
- (((_IO_strfile *) fp)->_s._free_buffer) (fp->_IO_buf_base);
+ free (fp->_IO_buf_base);
fp->_IO_buf_base = NULL;
_IO_default_finish (fp, 0);
diff --git a/libio/vasprintf.c b/libio/vasprintf.c
index 08218ddbe7..6c35d2b108 100644
--- a/libio/vasprintf.c
+++ b/libio/vasprintf.c
@@ -54,8 +54,8 @@ _IO_vasprintf (char **result_ptr, const char *format, va_list args)
_IO_JUMPS (&sf._sbf) = &_IO_str_jumps;
_IO_str_init_static_internal (&sf, string, init_string_size, string);
sf._sbf._f._flags &= ~_IO_USER_BUF;
- sf._s._allocate_buffer = (_IO_alloc_type) malloc;
- sf._s._free_buffer = (_IO_free_type) free;
+ sf._s._allocate_buffer_unused = (_IO_alloc_type) malloc;
+ sf._s._free_buffer_unused = (_IO_free_type) free;
ret = _IO_vfprintf (&sf._sbf._f, format, args);
if (ret < 0)
{
diff --git a/libio/wmemstream.c b/libio/wmemstream.c
index 88044f3150..c92d2da4b2 100644
--- a/libio/wmemstream.c
+++ b/libio/wmemstream.c
@@ -92,8 +92,8 @@ open_wmemstream (wchar_t **bufloc, size_t *sizeloc)
_IO_wstr_init_static (&new_f->fp._sf._sbf._f, buf,
BUFSIZ / sizeof (wchar_t), buf);
new_f->fp._sf._sbf._f._flags2 &= ~_IO_FLAGS2_USER_WBUF;
- new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc;
- new_f->fp._sf._s._free_buffer = (_IO_free_type) free;
+ new_f->fp._sf._s._allocate_buffer_unused = (_IO_alloc_type) malloc;
+ new_f->fp._sf._s._free_buffer_unused = (_IO_free_type) free;
new_f->fp.bufloc = bufloc;
new_f->fp.sizeloc = sizeloc;
diff --git a/libio/wstrops.c b/libio/wstrops.c
index 36e8b20fef..6626f2f711 100644
--- a/libio/wstrops.c
+++ b/libio/wstrops.c
@@ -63,7 +63,7 @@ _IO_wstr_init_static (FILE *fp, wchar_t *ptr, size_t size,
fp->_wide_data->_IO_read_end = end;
}
/* A null _allocate_buffer function flags the strfile as being static. */
- (((_IO_strfile *) fp)->_s._allocate_buffer) = (_IO_alloc_type)0;
+ (((_IO_strfile *) fp)->_s._allocate_buffer_unused) = (_IO_alloc_type)0;
}
wint_t
@@ -95,9 +95,7 @@ _IO_wstr_overflow (FILE *fp, wint_t c)
|| __glibc_unlikely (new_size > SIZE_MAX / sizeof (wchar_t)))
return EOF;
- new_buf
- = (wchar_t *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (new_size
- * sizeof (wchar_t));
+ new_buf = malloc (new_size * sizeof (wchar_t));
if (new_buf == NULL)
{
/* __ferror(fp) = 1; */
@@ -106,7 +104,7 @@ _IO_wstr_overflow (FILE *fp, wint_t c)
if (old_buf)
{
__wmemcpy (new_buf, old_buf, old_wblen);
- (*((_IO_strfile *) fp)->_s._free_buffer) (old_buf);
+ free (old_buf);
/* Make sure _IO_setb won't try to delete _IO_buf_base. */
fp->_wide_data->_IO_buf_base = NULL;
}
@@ -186,16 +184,14 @@ enlarge_userbuf (FILE *fp, off64_t offset, int reading)
return 1;
wchar_t *oldbuf = wd->_IO_buf_base;
- wchar_t *newbuf
- = (wchar_t *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (newsize
- * sizeof (wchar_t));
+ wchar_t *newbuf = malloc (newsize * sizeof (wchar_t));
if (newbuf == NULL)
return 1;
if (oldbuf != NULL)
{
__wmemcpy (newbuf, oldbuf, _IO_wblen (fp));
- (*((_IO_strfile *) fp)->_s._free_buffer) (oldbuf);
+ free (oldbuf);
/* Make sure _IO_setb won't try to delete
_IO_buf_base. */
wd->_IO_buf_base = NULL;
@@ -357,7 +353,7 @@ void
_IO_wstr_finish (FILE *fp, int dummy)
{
if (fp->_wide_data->_IO_buf_base && !(fp->_flags2 & _IO_FLAGS2_USER_WBUF))
- (((_IO_strfile *) fp)->_s._free_buffer) (fp->_wide_data->_IO_buf_base);
+ free (fp->_wide_data->_IO_buf_base);
fp->_wide_data->_IO_buf_base = NULL;
_IO_wdefault_finish (fp, 0);
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-22 02:00:56 +0000