diff options
Diffstat (limited to 'newlib/libc/stdio/findfp.c')
| -rw-r--r-- | newlib/libc/stdio/findfp.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c deleted file mode 100644 index 2a907bb6d..000000000 --- a/newlib/libc/stdio/findfp.c +++ /dev/null @@ -1,181 +0,0 @@ -/* No user fns here. Pesch 15apr92. */ - -/* - * Copyright (c) 1990 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Berkeley. The name of the - * University may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <fcntl.h> -#include <sys/lock.h> -#include "local.h" - -static void -std (ptr, flags, file, data) - FILE *ptr; - int flags; - int file; - struct _reent *data; -{ - ptr->_p = 0; - ptr->_r = 0; - ptr->_w = 0; - ptr->_flags = flags; - ptr->_file = file; - ptr->_bf._base = 0; - ptr->_bf._size = 0; - ptr->_lbfsize = 0; - ptr->_cookie = ptr; - ptr->_read = __sread; - ptr->_write = __swrite; - ptr->_seek = __sseek; - ptr->_close = __sclose; -#ifndef __SINGLE_THREAD__ - __lock_init_recursive (*(_LOCK_RECURSIVE_T *)&ptr->_lock); -#endif - -#ifdef __SCLE - if (__stextmode(ptr->_file)) - ptr->_flags |= __SCLE; -#endif -} - -struct _glue * -__sfmoreglue (d, n) - struct _reent *d; - register int n; -{ - struct _glue *g; - FILE *p; - - g = (struct _glue *) _malloc_r (d, sizeof (*g) + n * sizeof (FILE)); - if (g == NULL) - return NULL; - p = (FILE *) (g + 1); - g->_next = NULL; - g->_niobs = n; - g->_iobs = p; - memset (p, 0, n * sizeof (FILE)); - return g; -} - -/* - * Find a free FILE for fopen et al. - */ - -FILE * -__sfp (d) - struct _reent *d; -{ - FILE *fp; - int n; - struct _glue *g; - - if (!_GLOBAL_REENT->__sdidinit) - __sinit (_GLOBAL_REENT); - for (g = &_GLOBAL_REENT->__sglue;; g = g->_next) - { - for (fp = g->_iobs, n = g->_niobs; --n >= 0; fp++) - if (fp->_flags == 0) - goto found; - if (g->_next == NULL && - (g->_next = __sfmoreglue (d, NDYNAMIC)) == NULL) - break; - } - d->_errno = ENOMEM; - return NULL; - -found: - fp->_flags = 1; /* reserve this slot; caller sets real flags */ - fp->_p = NULL; /* no current pointer */ - fp->_w = 0; /* nothing to read or write */ - fp->_r = 0; - fp->_bf._base = NULL; /* no buffer */ - fp->_bf._size = 0; - fp->_lbfsize = 0; /* not line buffered */ - fp->_file = -1; /* no file */ - /* fp->_cookie = <any>; */ /* caller sets cookie, _read/_write etc */ - fp->_ub._base = NULL; /* no ungetc buffer */ - fp->_ub._size = 0; - fp->_lb._base = NULL; /* no line buffer */ - fp->_lb._size = 0; - return fp; -} - -/* - * exit() calls _cleanup() through *__cleanup, set whenever we - * open or buffer a file. This chicanery is done so that programs - * that do not use stdio need not link it all in. - * - * The name `_cleanup' is, alas, fairly well known outside stdio. - */ - -void -_cleanup_r (ptr) - struct _reent *ptr; -{ - /* (void) _fwalk(fclose); */ - (void) _fwalk (ptr, fflush); /* `cheating' */ -} - -#ifndef _REENT_ONLY -void -_cleanup () -{ - _cleanup_r (_GLOBAL_REENT); -} -#endif - -/* - * __sinit() is called whenever stdio's internal variables must be set up. - */ - -void -__sinit (s) - struct _reent *s; -{ - /* make sure we clean up on exit */ - s->__cleanup = _cleanup_r; /* conservative */ - s->__sdidinit = 1; - - s->__sglue._next = NULL; -#ifndef _REENT_SMALL - s->__sglue._niobs = 3; - s->__sglue._iobs = &s->__sf[0]; -#else - s->__sglue._niobs = 0; - s->__sglue._iobs = NULL; - s->_stdin = __sfp(s); - s->_stdout = __sfp(s); - s->_stderr = __sfp(s); -#endif - - std (s->_stdin, __SRD, 0, s); - - /* on platforms that have true file system I/O, we can verify whether stdout - is an interactive terminal or not. For all other platforms, we will - default to line buffered mode here. */ -#ifdef HAVE_FCNTL - std (s->_stdout, __SWR, 1, s); -#else - std (s->_stdout, __SWR | __SLBF, 1, s); -#endif - - std (s->_stderr, __SWR | __SNBF, 2, s); - -} |