diff options
Diffstat (limited to 'libio')
| -rw-r--r-- | libio/fileno.c | 7 | ||||
| -rw-r--r-- | libio/fileops.c | 2 | ||||
| -rw-r--r-- | libio/iofopncook.c | 5 | ||||
| -rw-r--r-- | libio/libioP.h | 4 | ||||
| -rw-r--r-- | libio/oldfileops.c | 2 |
5 files changed, 14 insertions, 6 deletions
diff --git a/libio/fileno.c b/libio/fileno.c index 7ff93e6a81..92334f1564 100644 --- a/libio/fileno.c +++ b/libio/fileno.c @@ -32,8 +32,11 @@ fileno (fp) { CHECK_FILE (fp, EOF); - if (!(fp->_flags & _IO_IS_FILEBUF)) - return EOF; + if (!(fp->_flags & _IO_IS_FILEBUF) || _IO_fileno (fp) < 0) + { + __set_errno (EBADF); + return -1; + } return _IO_fileno (fp); } diff --git a/libio/fileops.c b/libio/fileops.c index 8d480ad08b..8ced77b4c3 100644 --- a/libio/fileops.c +++ b/libio/fileops.c @@ -151,7 +151,7 @@ _IO_new_file_close_it (fp) _IO_un_link (fp); fp->_flags = _IO_MAGIC|CLOSED_FILEBUF_FLAGS; - fp->_fileno = EOF; + fp->_fileno = -1; fp->_offset = _IO_pos_BAD; return close_status ? close_status : write_status; diff --git a/libio/iofopncook.c b/libio/iofopncook.c index 85ea35c22e..7b76826031 100644 --- a/libio/iofopncook.c +++ b/libio/iofopncook.c @@ -167,5 +167,10 @@ fopencookie (cookie, mode, io_functions) _IO_mask_flags (&new_f->cfile.__file, read_write, _IO_NO_READS+_IO_NO_WRITES+_IO_IS_APPENDING); + /* We use a negative number different from -1 for _fileno to mark that + this special stream is not associated with a real file, but still has + to be treated as such. */ + new_f->cfile.__file._fileno = -2; + return &new_f->cfile.__file; } diff --git a/libio/libioP.h b/libio/libioP.h index 775f44588c..64256a9199 100644 --- a/libio/libioP.h +++ b/libio/libioP.h @@ -98,7 +98,7 @@ extern "C" { #endif /* The 'finish' function does any final cleaning up of an _IO_FILE object. - It does not delete (free) it, but does everything else to finalize it/ + It does not delete (free) it, but does everything else to finalize it. It matches the streambuf::~streambuf virtual destructor. */ typedef void (*_IO_finish_t) __PMT ((_IO_FILE *, int)); /* finalize */ #define _IO_FINISH(FP) JUMP1 (__finish, FP, 0) @@ -422,7 +422,7 @@ extern int _IO_file_stat __P ((_IO_FILE *, void *)); extern int _IO_file_close __P ((_IO_FILE *)); extern int _IO_file_underflow __P ((_IO_FILE *)); extern int _IO_file_overflow __P ((_IO_FILE *, int)); -#define _IO_file_is_open(__fp) ((__fp)->_fileno >= 0) +#define _IO_file_is_open(__fp) ((__fp)->_fileno != -1) extern void _IO_file_init __P ((_IO_FILE *)); extern _IO_FILE* _IO_file_attach __P ((_IO_FILE *, int)); extern _IO_FILE* _IO_file_open __P ((_IO_FILE *, const char *, int, int, diff --git a/libio/oldfileops.c b/libio/oldfileops.c index d65c272d48..02445215df 100644 --- a/libio/oldfileops.c +++ b/libio/oldfileops.c @@ -149,7 +149,7 @@ _IO_old_file_close_it (fp) _IO_un_link (fp); fp->_flags = _IO_MAGIC|CLOSED_FILEBUF_FLAGS; - fp->_fileno = EOF; + fp->_fileno = -1; fp->_old_offset = _IO_pos_BAD; return close_status ? close_status : write_status; |