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Diffstat (limited to 'release/src/router/busybox/libbb/printf.c')
| -rw-r--r-- | release/src/router/busybox/libbb/printf.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/release/src/router/busybox/libbb/printf.c b/release/src/router/busybox/libbb/printf.c deleted file mode 100644 index 923c5a1a..00000000 --- a/release/src/router/busybox/libbb/printf.c +++ /dev/null @@ -1,177 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * *printf implementations for busybox - * - * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -/* Mar 12, 2003 Manuel Novoa III - * - * While fwrite(), fputc(), fputs(), etc. all set the stream error flag - * on failure, the *printf functions are unique in that they can fail - * for reasons not related to the actual output itself. Among the possible - * reasons for failure which don't set the streams error indicator, - * SUSv3 lists EILSEQ, EINVAL, and ENOMEM. - * - * In some cases, it would be desireable to have a group of *printf() - * functions available that _always_ set the stream error indicator on - * failure. That would allow us to defer error checking until applet - * exit. Unfortunately, there is no standard way of setting a streams - * error indicator... even though we can clear it with clearerr(). - * - * Therefore, we have to resort to implementation dependent code. Feel - * free to send patches for stdio implementations where the following - * fails. - * - * NOTE: None of this is threadsafe. As busybox is a nonthreaded app, - * that isn't currently an issue. - */ - -#include <stdio.h> -#include <stdarg.h> -#include "libbb.h" - -#if defined(__UCLIBC__) - -# if defined(__FLAG_ERROR) -/* Using my newer stdio implementation. Unlocked macros are: - * #define __CLEARERR(stream) \ - ((stream)->modeflags &= ~(__FLAG_EOF|__FLAG_ERROR), (void)0) - * #define __FEOF(stream) ((stream)->modeflags & __FLAG_EOF) - * #define __FERROR(stream) ((stream)->modeflags & __FLAG_ERROR) - */ -#define SET_FERROR_UNLOCKED(S) ((S)->modeflags |= __FLAG_ERROR) - -#elif defined(__MODE_ERR) -/* Using either the original stdio implementation (from dev86) or - * my original stdio rewrite. Macros were: - * #define ferror(fp) (((fp)->mode&__MODE_ERR) != 0) - * #define feof(fp) (((fp)->mode&__MODE_EOF) != 0) - * #define clearerr(fp) ((fp)->mode &= ~(__MODE_EOF|__MODE_ERR),0) - */ -#define SET_FERROR_UNLOCKED(S) ((S)->mode |= __MODE_ERR) - -#else -#error unknown uClibc stdio implemenation! -#endif - -#elif defined(__GLIBC__) - -# if defined(_STDIO_USES_IOSTREAM) -/* Apparently using the newer libio implementation, with associated defines: - * #define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0) - * #define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0) - */ -#define SET_FERROR_UNLOCKED(S) ((S)->_flags |= _IO_ERR_SEEN) - -# else -/* Assume the older version of glibc which used a bitfield entry - * as a stream error flag. The associated defines were: - * #define __clearerr(stream) ((stream)->__error = (stream)->__eof = 0) - * #define feof_unlocked(stream) ((stream)->__eof != 0) - * #define ferror_unlocked(stream) ((stream)->__error != 0) - */ -#define SET_FERROR_UNLOCKED(S) ((S)->__error = 1) - -# endif - -#elif defined(__NEWLIB_H__) -/* I honestly don't know if there are different versions of stdio in - * newlibs history. Anyway, here's what's current. - * #define __sfeof(p) (((p)->_flags & __SEOF) != 0) - * #define __sferror(p) (((p)->_flags & __SERR) != 0) - * #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF))) - */ -#define SET_FERROR_UNLOCKED(S) ((S)->_flags |= __SERR) - -#elif defined(__dietlibc__) -/* - * WARNING!!! dietlibc is quite buggy. WARNING!!! - * - * Some example bugs as of March 12, 2003... - * 1) fputc() doesn't set the error indicator on failure. - * 2) freopen() doesn't maintain the same stream object, contary to - * standards. This makes it useless in its primary role of - * reassociating stdin/stdout/stderr. - * 3) printf() often fails to correctly format output when conversions - * involve padding. It is also practically useless for floating - * point output. - * - * But, if you're determined to use it anyway, (as of the current version) - * you can extract the information you need from dietstdio.h. See the - * other library implementations for examples. - */ -#error dietlibc is currently not supported. Please see the commented source. - -#else /* some other lib */ -/* Please see the comments for the above supported libaries for examples - * of what is required to support your stdio implementation. - */ -#error Your stdio library is currently not supported. Please see the commented source. -#endif - -#ifdef L_bb_vfprintf -extern int bb_vfprintf(FILE * __restrict stream, - const char * __restrict format, - va_list arg) -{ - int rv; - - if ((rv = vfprintf(stream, format, arg)) < 0) { - SET_FERROR_UNLOCKED(stream); - } - - return rv; -} -#endif - -#ifdef L_bb_vprintf -extern int bb_vprintf(const char * __restrict format, va_list arg) -{ - return bb_vfprintf(stdout, format, arg); -} -#endif - -#ifdef L_bb_fprintf -extern int bb_fprintf(FILE * __restrict stream, - const char * __restrict format, ...) -{ - va_list arg; - int rv; - - va_start(arg, format); - rv = bb_vfprintf(stream, format, arg); - va_end(arg); - - return rv; -} -#endif - -#ifdef L_bb_printf -extern int bb_printf(const char * __restrict format, ...) -{ - va_list arg; - int rv; - - va_start(arg, format); - rv = bb_vfprintf(stdout, format, arg); - va_end(arg); - - return rv; -} -#endif |