diff options
Diffstat (limited to 'newlib/libc/stdio/asprintf.c')
-rw-r--r-- | newlib/libc/stdio/asprintf.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/newlib/libc/stdio/asprintf.c b/newlib/libc/stdio/asprintf.c new file mode 100644 index 0000000..9935c12 --- /dev/null +++ b/newlib/libc/stdio/asprintf.c @@ -0,0 +1,95 @@ +/* + * 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. + */ + +/* This code was copied from sprintf.c */ + +#include <stdio.h> +#ifdef _HAVE_STDC +#include <stdarg.h> +#else +#include <varargs.h> +#endif +#include <limits.h> +#include <_ansi.h> +#include "local.h" + +int +#ifdef _HAVE_STDC +_DEFUN (asprintf_r, (ptr, strp, fmt), struct _reent *ptr _AND char **strp _AND _CONST char *fmt _DOTS) +#else +_asprintf_r (ptr, strp, fmt, va_alist) + struct _reent *ptr; + char **strp; + _CONST char *fmt; + va_dcl +#endif +{ + int ret; + va_list ap; + FILE f; + + /* mark a zero-length reallocatable buffer */ + f._flags = __SWR | __SSTR | __SMBF; + f._bf._base = f._p = NULL; + f._bf._size = f._w = 0; + f._data = ptr; +#ifdef _HAVE_STDC + va_start (ap, fmt); +#else + va_start (ap); +#endif + ret = vfprintf (&f, fmt, ap); + va_end (ap); + *f._p = 0; + *strp = f._bf._base; + return (ret); +} + +#ifndef _REENT_ONLY + +int +#ifdef _HAVE_STDC +_DEFUN (asprintf, (strp, fmt), char **strp _AND _CONST char *fmt _DOTS) +#else +asprintf (strp, fmt, va_alist) + char **strp; + _CONST char *fmt; + va_dcl +#endif +{ + int ret; + va_list ap; + FILE f; + + /* mark a zero-length reallocatable buffer */ + f._flags = __SWR | __SSTR | __SMBF; + f._bf._base = f._p = NULL; + f._bf._size = f._w = 0; + f._data = _REENT; +#ifdef _HAVE_STDC + va_start (ap, fmt); +#else + va_start (ap); +#endif + ret = vfprintf (&f, fmt, ap); + va_end (ap); + *f._p = 0; + *strp = f._bf._base; + return (ret); +} + +#endif |