DeforaNetworks/zzuf
3
0
Fork 0
Code Releases Activity

We need to know the FILE buffer's current fill status. Implemented for

Browse Source 
glibc for now.
This commit is contained in:
Sam Hocevar 2009-11-24 01:25:44 +00:00 committed by sam
parent 008cbf6065
commit f1b8f58cd2
2 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
configure.ac
View File

@ -79,27 +79,30 @@ AC_DEFINE_UNQUOTED(RECV_T, $ac_v_recv_t, [Define to the recv() return type])
AC_MSG_CHECKING(for FILE* internal members)
ac_cv_have_glibc_fp="no"
ac_v_fp_cnt="unknown"
ac_v_fp_base="unknown"
ac_v_fp_ptr="unknown"
ac_v_fp_cnt="unknown"
AC_TRY_COMPILE([#include <stdio.h>],
[FILE *fp; fp->_IO_read_ptr++; fp->_IO_read_end++],
[ac_cv_have_glibc_fp=yes; ac_v_fp_cnt=_IO_read_end; ac_v_fp_ptr=_IO_read_ptr],
[ac_cv_have_glibc_fp=yes; ac_v_fp_base=_IO_read_base
ac_v_fp_cnt=_IO_read_end; ac_v_fp_ptr=_IO_read_ptr],
[AC_TRY_COMPILE([#include <stdio.h>],
[FILE *fp; fp->__cnt++; fp->__ptr++],
[ac_v_fp_cnt=__cnt; ac_v_fp_ptr=__ptr],
[ac_v_fp_base=FIXME; ac_v_fp_ptr=__ptr; ac_v_fp_cnt=__cnt],
[AC_TRY_COMPILE([#include <stdio.h>],
[FILE *fp; fp->_cnt++; fp->_ptr++],
[ac_v_fp_cnt=_cnt; ac_v_fp_ptr=_ptr],
[aac_v_fp_base=FIXME; c_v_fp_ptr=_ptr; ac_v_fp_cnt=_cnt],
[AC_TRY_COMPILE([#include <stdio.h>],
[FILE *fp; fp->_c++; fp->_p++],
[ac_v_fp_cnt=_c; ac_v_fp_ptr=_p],
[aac_v_fp_base=FIXME; c_v_fp_ptr=_p; ac_v_fp_cnt=_c],
[AC_TRY_COMPILE([#include <stdio.h>],
[FILE *fp; fp->_r++; fp->_p++],
[ac_v_fp_cnt=_r; ac_v_fp_ptr=_p])])])])])
AC_MSG_RESULT($ac_v_fp_ptr/$ac_v_fp_cnt)
[aac_v_fp_base=FIXME; c_v_fp_ptr=_p; ac_v_fp_cnt=_r])])])])])
AC_MSG_RESULT($ac_v_fp_base/$ac_v_fp_ptr/$ac_v_fp_cnt)
if test "$ac_cv_have_glibc_fp" != "no"; then
AC_DEFINE(HAVE_GLIBC_FP, 1, [Define to 1 if FILE has glibc-style members])
fi
AC_DEFINE_UNQUOTED(FILE_BASE, $ac_v_fp_base, [Define to the FILE::base member])
AC_DEFINE_UNQUOTED(FILE_PTR, $ac_v_fp_ptr, [Define to the FILE::ptr member])
AC_DEFINE_UNQUOTED(FILE_CNT, $ac_v_fp_cnt, [Define to the FILE::cnt member])

9
src/lib-stream.c
View File

@ -168,6 +168,15 @@ static inline uint8_t *get_stream_ptr(FILE *stream)
#endif
}
static inline int get_stream_off(FILE *stream)
{
#if defined HAVE___FILBUF || defined HAVE___SRGET || defined HAVE___UFLOW
return (int)((uint8_t *)stream->FILE_PTR - (uint8_t *)stream->FILE_BASE);
#else
return 0;
#endif
}
static inline int get_stream_cnt(FILE *stream)
{
#if defined HAVE_GLIBC_FP