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14ba5e14d9
* libc/stdio/local.h (cantwrite, FREEUB, FREELB): Make reentrant. (__smakebuf): Rename... (__smakebuf_r): to this. * libc/stdio/fvwrite.h (__swsetup_r): Rename, from __swsetup. * libc/stdio/makebuf.c (__smakebuf): Detect failed asprint allocation, then rename... (__smakebuf_r): ...to this and fix reentrancy. * libc/stdio/wsetup.c (__swsetup): Detect failed asprintf allocation, then rename... (__swsetup_r): ...to this and fix reentrancy. * libc/stdio/fseek.c (_fseek_r): Fix reentrancy. * libc/stdio/refill.c (__srefill_r): Likewise. * libc/stdio/fclose.c (_fclose_r): Likewise. * libc/stdio/fread.c (_fread_r): Likewise. * libc/stdio/freopen.c (_freopen_r): Likewise. * libc/stdio/wbuf.c (__swbuf_r): Likewise. * libc/stdio64/fseeko64.c (_fseeko64_r): Likewise. * libc/stdio/fvwrite.c (__sfvwrite_r): Set errno properly on failed asprintf allocation, and fix reentrancy. * libc/stdio/snprintf.c (snprintf, _snprintf_r): Report overflow, as required by POSIX. * libc/stdio/sniprintf.c (sniprintf, _sniprintf_r): Likewise. * libc/stdio/vsnprintf.c (vsnprintf, _vsnprintf_r): Likewise. * libc/stdio/vsniprintf.c (vsniprintf, _vsniprintf_r): Likewise.
120 lines
2.6 KiB
C
120 lines
2.6 KiB
C
/*
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* Copyright (c) 1990, 2007 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* This code created by modifying snprintf.c so copyright inherited. */
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#include <_ansi.h>
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#include <reent.h>
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#include <stdio.h>
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#ifdef _HAVE_STDC
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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#include <limits.h>
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#include <errno.h>
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#include "local.h"
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int
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#ifdef _HAVE_STDC
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_DEFUN (_sniprintf_r, (ptr, str, size, fmt),
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struct _reent *ptr _AND
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char *str _AND
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size_t size _AND
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_CONST char *fmt _DOTS)
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#else
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_sniprintf_r (ptr, str, size, fmt, va_alist)
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struct _reent *ptr;
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char *str;
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size_t size;
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_CONST char *fmt;
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va_dcl
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#endif
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{
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int ret;
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va_list ap;
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FILE f;
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if (size > INT_MAX)
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{
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ptr->_errno = EOVERFLOW;
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return EOF;
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}
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f._flags = __SWR | __SSTR;
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f._bf._base = f._p = (unsigned char *) str;
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f._bf._size = f._w = (size > 0 ? size - 1 : 0);
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f._file = -1; /* No file. */
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#ifdef _HAVE_STDC
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va_start (ap, fmt);
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#else
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va_start (ap);
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#endif
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ret = _vfiprintf_r (ptr, &f, fmt, ap);
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va_end (ap);
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if (ret < EOF)
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ptr->_errno = EOVERFLOW;
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if (size > 0)
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*f._p = 0;
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return (ret);
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}
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#ifndef _REENT_ONLY
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int
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#ifdef _HAVE_STDC
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_DEFUN (sniprintf, (str, size, fmt),
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char *str _AND
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size_t size _AND
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_CONST char *fmt _DOTS)
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#else
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sniprintf (str, size, fmt, va_alist)
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char *str;
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size_t size;
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_CONST char *fmt;
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va_dcl
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#endif
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{
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int ret;
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va_list ap;
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FILE f;
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struct _reent *ptr = _REENT;
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if (size > INT_MAX)
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{
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ptr->_errno = EOVERFLOW;
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return EOF;
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}
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f._flags = __SWR | __SSTR;
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f._bf._base = f._p = (unsigned char *) str;
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f._bf._size = f._w = (size > 0 ? size - 1 : 0);
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f._file = -1; /* No file. */
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#ifdef _HAVE_STDC
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va_start (ap, fmt);
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#else
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va_start (ap);
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#endif
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ret = _vfiprintf_r (ptr, &f, fmt, ap);
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va_end (ap);
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if (ret < EOF)
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ptr->_errno = EOVERFLOW;
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if (size > 0)
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*f._p = 0;
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return (ret);
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}
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#endif
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