From: Joerg Sonnenberger Date: Tue, 2 Aug 2005 00:44:39 +0000 (+0000) Subject: Add missing bit of the wchar stdio support and hook the whole thing in. X-Git-Tag: v2.0.1~6404 X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/6f1e2b382f6c2ba9b43a1fc106ba998b45499eea Add missing bit of the wchar stdio support and hook the whole thing in. Cover up temporary breakage from missing floatio.h commit. Obtained-from: FreeBSD via NetBSD --- diff --git a/include/wchar.h b/include/wchar.h index 2ae9a0773d..544bcb82e1 100644 --- a/include/wchar.h +++ b/include/wchar.h @@ -1,5 +1,5 @@ /* $NetBSD: src/include/wchar.h,v 1.20 2004/05/08 21:57:05 kleink Exp $ */ -/* $DragonFly: src/include/wchar.h,v 1.7 2005/07/26 16:45:58 joerg Exp $ */ +/* $DragonFly: src/include/wchar.h,v 1.8 2005/08/02 00:44:39 joerg Exp $ */ /*- * Copyright (c)1999 Citrus Project, @@ -182,6 +182,25 @@ wint_t putwc(wchar_t, FILE *); wint_t putwchar(wchar_t); int fwide(FILE *, int); + +wchar_t *fgetwln(FILE * __restrict, size_t * __restrict); +int fwprintf(FILE * __restrict, const wchar_t * __restrict, ...); +int fwscanf(FILE * __restrict, const wchar_t * __restrict, ...); +int swprintf(wchar_t * __restrict, size_t n, + const wchar_t * __restrict, ...); +int swscanf(const wchar_t * __restrict, const wchar_t * __restrict, ...); +int vfwprintf(FILE * __restrict, const wchar_t * __restrict, __va_list); +int vswprintf(wchar_t * __restrict, size_t, const wchar_t * __restrict, + __va_list); +int vwprintf(const wchar_t * __restrict, __va_list); +int wprintf(const wchar_t * __restrict, ...); +int wscanf(const wchar_t * __restrict, ...); +#if __ISO_C_VISIBLE >= 1999 || __DF_VISIBLE +int vfwscanf(FILE * __restrict, const wchar_t * __restrict, __va_list); +int vswscanf(const wchar_t * __restrict, const wchar_t * __restrict, + __va_list); +int vwscanf(const wchar_t * __restrict, __va_list); +#endif __END_DECLS #define getwc(f) fgetwc(f) diff --git a/lib/libc/stdio/Makefile.inc b/lib/libc/stdio/Makefile.inc index 8737aabb04..8fc0cf0ed9 100644 --- a/lib/libc/stdio/Makefile.inc +++ b/lib/libc/stdio/Makefile.inc @@ -1,26 +1,32 @@ # @(#)Makefile.inc 8.3 (Berkeley) 4/17/94 # $FreeBSD: src/lib/libc/stdio/Makefile.inc,v 1.19.2.1 2001/04/25 10:04:11 ru Exp $ -# $DragonFly: src/lib/libc/stdio/Makefile.inc,v 1.3 2005/07/23 20:23:05 joerg Exp $ +# $DragonFly: src/lib/libc/stdio/Makefile.inc,v 1.4 2005/08/02 00:44:39 joerg Exp $ # stdio sources .PATH: ${.CURDIR}/../libc/stdio SRCS+= __fpending.c _flock_stub.c \ - asprintf.c clrerr.c fcookie.c fclose.c fdopen.c feof.c ferror.c fflush.c \ - fgetc.c fgetln.c fgetpos.c fgets.c fileno.c findfp.c flags.c fopen.c \ - fprintf.c fpurge.c fputc.c fputs.c fread.c freopen.c fscanf.c \ - fseek.c fsetpos.c ftell.c funopen.c fvwrite.c fwalk.c fwrite.c \ - getc.c getchar.c gets.c getw.c makebuf.c mktemp.c perror.c \ - printf.c putc.c putchar.c puts.c putw.c refill.c remove.c rewind.c \ + asprintf.c clrerr.c fclose.c fcookie.c fdopen.c feof.c ferror.c \ + fflush.c fgetc.c fgetln.c fgetpos.c fgets.c fgetwc.c fgetwln.c \ + fgetws.c fileno.c findfp.c flags.c fopen.c fprintf.c fpurge.c \ + fputc.c fputs.c fputwc.c fputws.c fread.c freopen.c fscanf.c \ + fseek.c fsetpos.c ftell.c funopen.c fvwrite.c fwalk.c fwide.c \ + fwprintf.c fwrite.c fwscanf.c getc.c getchar.c gets.c getw.c \ + getwc.c getwchar.c makebuf.c mktemp.c perror.c printf.c putc.c \ + putchar.c puts.c putw.c putwc.c putwchar.c refill.c remove.c rewind.c \ rget.c scanf.c setbuf.c setbuffer.c setvbuf.c snprintf.c sprintf.c \ - sscanf.c stdio.c tempnam.c tmpfile.c tmpnam.c ungetc.c vasprintf.c \ - vfprintf.c vfscanf.c vprintf.c vscanf.c vsnprintf.c vsprintf.c \ - vsscanf.c wbuf.c wsetup.c + sscanf.c stdio.c swprintf.c swscanf.c tempnam.c tmpfile.c tmpnam.c \ + ungetc.c ungetwc.c vasprintf.c vfprintf.c vfscanf.c vfwprintf.c \ + vfwscanf.c vprintf.c vscanf.c vsnprintf.c vsprintf.c vsscanf.c \ + vswprintf.c vswscanf.c vwprintf.c vwscanf.c wbuf.c wprintf.c \ + wscanf.c wsetup.c + .if ${LIB} == "c" -MAN+= fclose.3 ferror.3 fflush.3 fgetln.3 fgets.3 fopen.3 fputs.3 \ - fread.3 fseek.3 funopen.3 getc.3 mktemp.3 printf.3 putc.3 remove.3 \ - scanf.3 setbuf.3 stdio.3 tmpnam.3 ungetc.3 +MAN+= fclose.3 ferror.3 fflush.3 fgetln.3 fgets.3 fgetwln.3 fgetws.3 \ + fopen.3 fputs.3 fputws.3 fread.3 fseek.3 funopen.3 fwide.3 getc.3 \ + getwc.3 mktemp.3 printf.3 putc.3 putwc.3 remove.3 \ + scanf.3 setbuf.3 stdio.3 tmpnam.3 ungetc.3 ungetwc.3 wprintf.3 wscanf.3 MLINKS+=ferror.3 clearerr.3 ferror.3 feof.3 ferror.3 fileno.3 MLINKS+=fflush.3 fpurge.3 diff --git a/lib/libc/stdio/fgetln.c b/lib/libc/stdio/fgetln.c index 8006cbb31f..057e8e8f51 100644 --- a/lib/libc/stdio/fgetln.c +++ b/lib/libc/stdio/fgetln.c @@ -35,7 +35,7 @@ * * @(#)fgetln.c 8.2 (Berkeley) 1/2/94 * $FreeBSD: src/lib/libc/stdio/fgetln.c,v 1.6 1999/08/28 00:00:59 peter Exp $ - * $DragonFly: src/lib/libc/stdio/fgetln.c,v 1.5 2005/07/23 20:23:05 joerg Exp $ + * $DragonFly: src/lib/libc/stdio/fgetln.c,v 1.6 2005/08/02 00:44:39 joerg Exp $ */ #include @@ -51,7 +51,7 @@ * so we add 1 here. #endif */ -static int +int __slbexpand(FILE *fp, size_t newsize) { void *p; diff --git a/lib/libc/stdio/floatio.h b/lib/libc/stdio/floatio.h index c2089fe415..3c4bebf517 100644 --- a/lib/libc/stdio/floatio.h +++ b/lib/libc/stdio/floatio.h @@ -34,6 +34,7 @@ * SUCH DAMAGE. * * @(#)floatio.h 8.1 (Berkeley) 6/4/93 + * $DragonFly: src/lib/libc/stdio/floatio.h,v 1.2 2005/08/02 00:44:39 joerg Exp $ */ /* @@ -41,6 +42,6 @@ */ /* 11-bit exponent (VAX G floating point) is 308 decimal digits */ -#define MAXEXP 308 +#define MAXEXPDIG 308 /* 128 bit fraction takes up 39 decimal digits; max reasonable precision */ #define MAXFRACT 39 diff --git a/lib/libc/stdio/local.h b/lib/libc/stdio/local.h index 63be29b811..d49e2587bc 100644 --- a/lib/libc/stdio/local.h +++ b/lib/libc/stdio/local.h @@ -36,10 +36,11 @@ * @(#)local.h 8.3 (Berkeley) 7/3/94 * * $FreeBSD: src/lib/libc/stdio/local.h,v 1.1.1.2.6.1 2001/03/05 11:27:49 obrien Exp $ - * $DragonFly: src/lib/libc/stdio/local.h,v 1.8 2005/07/23 23:14:44 joerg Exp $ + * $DragonFly: src/lib/libc/stdio/local.h,v 1.9 2005/08/02 00:44:39 joerg Exp $ */ #include /* for off_t */ +#include /* for wchar_t */ #ifndef _MACHINE_STDINT_H_ #include /* __size_t */ @@ -50,6 +51,7 @@ * in particular, macros and private variables. */ +extern int __slbexpand(FILE *, size_t); extern int __sflush (FILE *); extern FILE *__sfp (void); extern int __srefill (FILE *); @@ -66,6 +68,9 @@ extern int _fwalk (int (*)(FILE *)); extern int __swsetup (FILE *); extern int __sflags (const char *, int *); extern int __vfprintf(FILE *, const char *, __va_list); +extern wint_t __fgetwc_unlock(FILE *); +extern wint_t __fputwc_unlock(wchar_t, FILE *); +extern int __vfwprintf_unlocked(FILE *, const wchar_t *, __va_list); extern int __sdidinit; diff --git a/lib/libc/stdio/priv_stdio.h b/lib/libc/stdio/priv_stdio.h index 4082dbe500..8b99a54e1a 100644 --- a/lib/libc/stdio/priv_stdio.h +++ b/lib/libc/stdio/priv_stdio.h @@ -30,7 +30,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $DragonFly: src/lib/libc/stdio/priv_stdio.h,v 1.2 2005/07/23 23:14:44 joerg Exp $ + * $DragonFly: src/lib/libc/stdio/priv_stdio.h,v 1.3 2005/08/02 00:44:39 joerg Exp $ */ #ifndef _LIBC_PRIV_STDIO_H_ @@ -38,6 +38,8 @@ #include +#include "wcio.h" + /* stdio buffers */ struct __sbuf { unsigned char *_base; @@ -82,6 +84,8 @@ struct __FILE { pthread_mutex_t fl_mutex; /* used for MT-safety */ pthread_t fl_owner; /* current owner */ int fl_count; /* recursive lock count */ + + struct wchar_io_data _wcio; }; /* diff --git a/lib/libc/stdio/vfwprintf.c b/lib/libc/stdio/vfwprintf.c new file mode 100644 index 0000000000..a296d3a396 --- /dev/null +++ b/lib/libc/stdio/vfwprintf.c @@ -0,0 +1,1766 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: src/lib/libc/stdio/vfwprintf.c,v 1.24 2005/04/16 22:36:51 das Exp $ + * $NetBSD: vfwprintf.c,v 1.3 2005/06/15 09:31:27 he Exp $ + * $DragonFly: src/lib/libc/stdio/vfwprintf.c,v 1.1 2005/08/02 00:44:39 joerg Exp $ + */ + +/* + * Actual wprintf innards. + * + * Avoid making gratuitous changes to this source file; it should be kept + * as close as possible to vfprintf.c for ease of maintenance. + */ + +#include "namespace.h" +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "un-namespace.h" + +#include "libc_private.h" +#include "local.h" +#include "priv_stdio.h" + + +union arg { + int intarg; + unsigned int uintarg; + long longarg; + unsigned long ulongarg; + long long longlongarg; + unsigned long long ulonglongarg; + ptrdiff_t ptrdiffarg; + size_t sizearg; + intmax_t intmaxarg; + uintmax_t uintmaxarg; + void *pvoidarg; + char *pchararg; + signed char *pschararg; + short *pshortarg; + int *pintarg; + long *plongarg; + quad_t *plonglongarg; + ptrdiff_t *pptrdiffarg; + size_t *psizearg; + intmax_t *pintmaxarg; +#ifndef NO_FLOATING_POINT + double doublearg; + long double longdoublearg; +#endif + wint_t wintarg; + wchar_t *pwchararg; +}; + +/* + * Type ids for argument type table. + */ +enum typeid { + T_UNUSED, TP_SHORT, T_INT, T_U_INT, TP_INT, + T_LONG, T_U_LONG, TP_LONG, T_LLONG, T_U_LLONG, TP_LLONG, + T_PTRDIFFT, TP_PTRDIFFT, T_SIZET, TP_SIZET, + T_INTMAXT, T_UINTMAXT, TP_INTMAXT, TP_VOID, TP_CHAR, TP_SCHAR, + T_DOUBLE, T_LONG_DOUBLE, T_WINT, TP_WCHAR +}; + +static int __sbprintf(FILE *, const wchar_t *, va_list); +static wint_t __xfputwc(wchar_t, FILE *); +static wchar_t *__ujtoa(uintmax_t, wchar_t *, int, int, const char *, int, + char, const char *); +static wchar_t *__ultoa(u_long, wchar_t *, int, int, const char *, int, + char, const char *); +static wchar_t *__mbsconv(char *, int); +static void __find_arguments(const wchar_t *, va_list, union arg **); +static void __grow_type_table(int, enum typeid **, int *); + +/* + * Helper function for `fprintf to unbuffered unix file': creates a + * temporary buffer. We only work on write-only files; this avoids + * worries about ungetc buffers and so forth. + */ +static int +__sbprintf(FILE *fp, const wchar_t *fmt, va_list ap) +{ + int ret; + FILE fake; + unsigned char buf[BUFSIZ]; + + /* copy the important variables */ + fake.pub._flags = fp->pub._flags & ~__SNBF; + fake.pub._fileno = fp->pub._fileno; + fake._cookie = fp->_cookie; + fake._write = fp->_write; + + fake._up = fp->_up; + fake.fl_mutex = fp->fl_mutex; + fake.fl_owner = fp->fl_owner; + fake.fl_count = fp->fl_count; + + /* set up the buffer */ + fake._bf._base = fake.pub._p = buf; + fake._bf._size = fake.pub._w = sizeof(buf); + fake.pub._lbfsize = 0; /* not actually used, but Just In Case */ + + /* do the work, then copy any error status */ + ret = __vfwprintf_unlocked(&fake, fmt, ap); + if (ret >= 0 && __fflush(&fake)) + ret = WEOF; + if (fake.pub._flags & __SERR) + fp->pub._flags |= __SERR; + return (ret); +} + +/* + * Like __fputwc, but handles fake string (__SSTR) files properly. + * File must already be locked. + */ +static wint_t +__xfputwc(wchar_t wc, FILE *fp) +{ + static const mbstate_t initial; + mbstate_t mbs; + char buf[MB_LEN_MAX]; + struct __suio uio; + struct __siov iov; + size_t len; + + if ((fp->pub._flags & __SSTR) == 0) + return (__fputwc_unlock(wc, fp)); + + mbs = initial; + if ((len = wcrtomb(buf, wc, &mbs)) == (size_t)-1) { + fp->pub._flags |= __SERR; + return (WEOF); + } + uio.uio_iov = &iov; + uio.uio_resid = len; + uio.uio_iovcnt = 1; + iov.iov_base = buf; + iov.iov_len = len; + return (__sfvwrite(fp, &uio) != EOF ? (wint_t)wc : WEOF); +} + +/* + * Macros for converting digits to letters and vice versa + */ +#define to_digit(c) ((c) - '0') +#define is_digit(c) ((unsigned)to_digit(c) <= 9) +#define to_char(n) (wchar_t)((n) + '0') + +/* + * Convert an unsigned long to ASCII for printf purposes, returning + * a pointer to the first character of the string representation. + * Octal numbers can be forced to have a leading zero; hex numbers + * use the given digits. + */ +static wchar_t * +__ultoa(u_long val, wchar_t *endp, int base, int octzero, const char *xdigs, + int needgrp, char thousep, const char *grp) +{ + wchar_t *cp = endp; + long sval; + int ndig; + + /* + * Handle the three cases separately, in the hope of getting + * better/faster code. + */ + switch (base) { + case 10: + if (val < 10) { /* many numbers are 1 digit */ + *--cp = to_char(val); + return (cp); + } + ndig = 0; + /* + * On many machines, unsigned arithmetic is harder than + * signed arithmetic, so we do at most one unsigned mod and + * divide; this is sufficient to reduce the range of + * the incoming value to where signed arithmetic works. + */ + if (val > LONG_MAX) { + *--cp = to_char(val % 10); + ndig++; + sval = val / 10; + } else + sval = val; + do { + *--cp = to_char(sval % 10); + ndig++; + /* + * If (*grp == CHAR_MAX) then no more grouping + * should be performed. + */ + if (needgrp && ndig == *grp && *grp != CHAR_MAX && + sval > 9) { + *--cp = thousep; + ndig = 0; + /* + * If (*(grp+1) == '\0') then we have to + * use *grp character (last grouping rule) + * for all next cases + */ + if (*(grp+1) != '\0') + grp++; + } + sval /= 10; + } while (sval != 0); + break; + + case 8: + do { + *--cp = to_char(val & 7); + val >>= 3; + } while (val); + if (octzero && *cp != '0') + *--cp = '0'; + break; + + case 16: + do { + *--cp = xdigs[(size_t)val & 15]; + val >>= 4; + } while (val); + break; + + default: /* oops */ + abort(); + } + return (cp); +} + +/* Identical to __ultoa, but for intmax_t. */ +static wchar_t * +__ujtoa(uintmax_t val, wchar_t *endp, int base, int octzero, + const char *xdigs, int needgrp, char thousep, const char *grp) +{ + wchar_t *cp = endp; + intmax_t sval; + int ndig; + + /* quick test for small values; __ultoa is typically much faster */ + /* (perhaps instead we should run until small, then call __ultoa?) */ + if (val <= ULONG_MAX) + return (__ultoa((u_long)val, endp, base, octzero, xdigs, + needgrp, thousep, grp)); + switch (base) { + case 10: + if (val < 10) { + *--cp = to_char(val % 10); + return (cp); + } + ndig = 0; + if (val > INTMAX_MAX) { + *--cp = to_char(val % 10); + ndig++; + sval = val / 10; + } else + sval = val; + do { + *--cp = to_char(sval % 10); + ndig++; + /* + * If (*grp == CHAR_MAX) then no more grouping + * should be performed. + */ + if (needgrp && *grp != CHAR_MAX && ndig == *grp && + sval > 9) { + *--cp = thousep; + ndig = 0; + /* + * If (*(grp+1) == '\0') then we have to + * use *grp character (last grouping rule) + * for all next cases + */ + if (*(grp+1) != '\0') + grp++; + } + sval /= 10; + } while (sval != 0); + break; + + case 8: + do { + *--cp = to_char(val & 7); + val >>= 3; + } while (val); + if (octzero && *cp != '0') + *--cp = '0'; + break; + + case 16: + do { + *--cp = xdigs[(size_t)val & 15]; + val >>= 4; + } while (val); + break; + + default: + abort(); + } + return (cp); +} + +/* + * Convert a multibyte character string argument for the %s format to a wide + * string representation. ``prec'' specifies the maximum number of bytes + * to output. If ``prec'' is greater than or equal to zero, we can't assume + * that the multibyte char. string ends in a null character. + */ +static wchar_t * +__mbsconv(char *mbsarg, int prec) +{ + static const mbstate_t initial; + mbstate_t mbs; + wchar_t *convbuf, *wcp; + const char *p; + size_t insize, nchars, nconv; + + if (mbsarg == NULL) + return (NULL); + + /* + * Supplied argument is a multibyte string; convert it to wide + * characters first. + */ + if (prec >= 0) { + /* + * String is not guaranteed to be NUL-terminated. Find the + * number of characters to print. + */ + p = mbsarg; + insize = nchars = nconv = 0; + mbs = initial; + while (nchars != (size_t)prec) { + nconv = mbrlen(p, MB_CUR_MAX, &mbs); + if (nconv == 0 || nconv == (size_t)-1 || + nconv == (size_t)-2) + break; + p += nconv; + nchars++; + insize += nconv; + } + if (nconv == (size_t)-1 || nconv == (size_t)-2) + return (NULL); + } else + insize = strlen(mbsarg); + + /* + * Allocate buffer for the result and perform the conversion, + * converting at most `size' bytes of the input multibyte string to + * wide characters for printing. + */ + convbuf = malloc((insize + 1) * sizeof(*convbuf)); + if (convbuf == NULL) + return (NULL); + wcp = convbuf; + p = mbsarg; + mbs = initial; + nconv = 0; + while (insize != 0) { + nconv = mbrtowc(wcp, p, insize, &mbs); + if (nconv == 0 || nconv == (size_t)-1 || nconv == (size_t)-2) + break; + wcp++; + p += nconv; + insize -= nconv; + } + if (nconv == (size_t)-1 || nconv == (size_t)-2) { + free(convbuf); + return (NULL); + } + *wcp = L'\0'; + + return (convbuf); +} + +/* + * MT-safe version + */ +int +vfwprintf(FILE * __restrict fp, const wchar_t * __restrict fmt0, va_list ap) +{ + int ret; + + FLOCKFILE(fp); + ret = __vfwprintf_unlocked(fp, fmt0, ap); + FUNLOCKFILE(fp); + return (ret); +} + +#ifndef NO_FLOATING_POINT + +#define dtoa __dtoa +#define freedtoa __freedtoa + +#include +#include +#include "floatio.h" + +#define DEFPREC 6 + +static int exponent(wchar_t *, int, wchar_t); +static wchar_t *cvt(double, int, int, char *, int *, int, int *, char **); + +#endif /* !NO_FLOATING_POINT */ + +/* + * The size of the buffer we use as scratch space for integer + * conversions, among other things. Technically, we would need the + * most space for base 10 conversions with thousands' grouping + * characters between each pair of digits. 100 bytes is a + * conservative overestimate even for a 128-bit uintmax_t. + */ +#define BUF 100 + +#define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */ + +/* + * Flags used during conversion. + */ +#define ALT 0x001 /* alternate form */ +#define LADJUST 0x004 /* left adjustment */ +#define LONGDBL 0x008 /* long double */ +#define LONGINT 0x010 /* long integer */ +#define LLONGINT 0x020 /* quad_t integer */ +#define SHORTINT 0x040 /* short integer */ +#define ZEROPAD 0x080 /* zero (as opposed to blank) pad */ +#define FPT 0x100 /* Floating point number */ +#define GROUPING 0x200 /* use grouping ("'" flag) */ + /* C99 additional size modifiers: */ +#define SIZET 0x400 /* size_t */ +#define PTRDIFFT 0x800 /* ptrdiff_t */ +#define INTMAXT 0x1000 /* intmax_t */ +#define CHARINT 0x2000 /* print char using int format */ + +/* + * Non-MT-safe version + */ +int +__vfwprintf_unlocked(FILE *fp, const wchar_t *fmt0, va_list ap) +{ + wchar_t *fmt; /* format string */ + wchar_t ch; /* character from fmt */ + int n, n2, n3; /* handy integer (short term usage) */ + wchar_t *cp; /* handy char pointer (short term usage) */ + int flags; /* flags as above */ + int ret; /* return value accumulator */ + int width; /* width from format (%8d), or 0 */ + int prec; /* precision from format; <0 for N/A */ + wchar_t sign; /* sign prefix (' ', '+', '-', or \0) */ + char thousands_sep; /* locale specific thousands separator */ + const char *grouping; /* locale specific numeric grouping rules */ +#ifndef NO_FLOATING_POINT + /* + * We can decompose the printed representation of floating + * point numbers into several parts, some of which may be empty: + * + * [+|-| ] [0x|0X] MMM . NNN [e|E|p|P] [+|-] ZZ + * A B ---C--- D E F + * + * A: 'sign' holds this value if present; '\0' otherwise + * B: ox[1] holds the 'x' or 'X'; '\0' if not hexadecimal + * C: cp points to the string MMMNNN. Leading and trailing + * zeros are not in the string and must be added. + * D: expchar holds this character; '\0' if no exponent, e.g. %f + * F: at least two digits for decimal, at least one digit for hex + */ + const char *decimal_point; /* locale specific decimal point */ +#ifdef notyet + int signflag; /* true if float is negative */ + union { /* floating point arguments %[aAeEfFgG] */ + double dbl; + long double ldbl; + } fparg; + char *dtoaend; /* pointer to end of converted digits */ +#else + double _double; /* double precision arguments %[eEfgG] */ + char softsign; /* temporary negative sign for floats */ +#endif + int expt; /* integer value of exponent */ + char expchar; /* exponent character: [eEpP\0] */ + int expsize; /* character count for expstr */ + char *dtoaresult; /* buffer allocated by dtoa */ + int lead; /* sig figs before decimal or group sep */ + int ndig; /* actual number of digits returned by dtoa */ + wchar_t expstr[MAXEXPDIG+2]; /* buffer for exponent string: e+ZZZ */ + int nseps; /* number of group separators with ' */ + int nrepeats; /* number of repeats of the last group */ +#endif + u_long ulval; /* integer arguments %[diouxX] */ + uintmax_t ujval; /* %j, %ll, %q, %t, %z integers */ + int base; /* base for [diouxX] conversion */ + int dprec; /* a copy of prec if [diouxX], 0 otherwise */ + int realsz; /* field size expanded by dprec, sign, etc */ + int size; /* size of converted field or string */ + int prsize; /* max size of printed field */ + const char *xdigs; /* digits for [xX] conversion */ + wchar_t buf[BUF]; /* buffer with space for digits of uintmax_t */ + wchar_t ox[2]; /* space for 0x hex-prefix */ + union arg *argtable; /* args, built due to positional arg */ + union arg statargtable [STATIC_ARG_TBL_SIZE]; + int nextarg; /* 1-based argument index */ + va_list orgap; /* original argument pointer */ + wchar_t *convbuf; /* multibyte to wide conversion result */ + + /* + * Choose PADSIZE to trade efficiency vs. size. If larger printf + * fields occur frequently, increase PADSIZE and make the initialisers + * below longer. + */ +#define PADSIZE 16 /* pad chunk size */ + static wchar_t blanks[PADSIZE] = + {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '}; + static wchar_t zeroes[PADSIZE] = + {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'}; + + static const char xdigs_lower[16] = "0123456789abcdef"; + static const char xdigs_upper[16] = "0123456789ABCDEF"; + + /* + * BEWARE, these `goto error' on error, PRINT uses `n2' and + * PAD uses `n'. + */ +#define PRINT(ptr, len) do { \ + for (n3 = 0; n3 < (len); n3++) \ + __xfputwc((ptr)[n3], fp); \ +} while (/*CONSTCOND*/0) +#define PAD(howmany, with) do { \ + if ((n = (howmany)) > 0) { \ + while (n > PADSIZE) { \ + PRINT(with, PADSIZE); \ + n -= PADSIZE; \ + } \ + PRINT(with, n); \ + } \ +} while (/*CONSTCOND*/0) +#define PRINTANDPAD(p, ep, len, with) do { \ + n2 = (ep) - (p); \ + if (n2 > (len)) \ + n2 = (len); \ + if (n2 > 0) \ + PRINT((p), n2); \ + PAD((len) - (n2 > 0 ? n2 : 0), (with)); \ +} while(/*CONSTCOND*/0) + + /* + * Get the argument indexed by nextarg. If the argument table is + * built, use it to get the argument. If its not, get the next + * argument (and arguments must be gotten sequentially). + */ +#define GETARG(type) \ + ((/*CONSTCOND*/argtable != NULL) ? *((type*)(void*)(&argtable[nextarg++])) : \ + (nextarg++, va_arg(ap, type))) + + /* + * To extend shorts properly, we need both signed and unsigned + * argument extraction methods. + */ +#define SARG() \ + (flags&LONGINT ? GETARG(long) : \ + flags&SHORTINT ? (long)(short)GETARG(int) : \ + flags&CHARINT ? (long)(signed char)GETARG(int) : \ + (long)GETARG(int)) +#define UARG() \ + (flags&LONGINT ? GETARG(u_long) : \ + flags&SHORTINT ? (u_long)(u_short)GETARG(int) : \ + flags&CHARINT ? (u_long)(u_char)GETARG(int) : \ + (u_long)GETARG(u_int)) +#define INTMAX_SIZE (INTMAXT|SIZET|PTRDIFFT|LLONGINT) +#define SJARG() \ + (flags&INTMAXT ? GETARG(intmax_t) : \ + flags&SIZET ? (intmax_t)GETARG(size_t) : \ + flags&PTRDIFFT ? (intmax_t)GETARG(ptrdiff_t) : \ + (intmax_t)GETARG(quad_t)) +#define UJARG() \ + (flags&INTMAXT ? GETARG(uintmax_t) : \ + flags&SIZET ? (uintmax_t)GETARG(size_t) : \ + flags&PTRDIFFT ? (uintmax_t)GETARG(ptrdiff_t) : \ + (uintmax_t)GETARG(u_quad_t)) + + /* + * Get * arguments, including the form *nn$. Preserve the nextarg + * that the argument can be gotten once the type is determined. + */ +#define GETASTER(val) \ + n2 = 0; \ + cp = fmt; \ + while (is_digit(*cp)) { \ + n2 = 10 * n2 + to_digit(*cp); \ + cp++; \ + } \ + if (*cp == '$') { \ + int hold = nextarg; \ + if (argtable == NULL) { \ + argtable = statargtable; \ + __find_arguments (fmt0, orgap, &argtable); \ + } \ + nextarg = n2; \ + val = GETARG (int); \ + nextarg = hold; \ + fmt = ++cp; \ + } else { \ + val = GETARG (int); \ + } + + + thousands_sep = '\0'; + grouping = NULL; +#ifndef NO_FLOATING_POINT + dtoaresult = NULL; + decimal_point = localeconv()->decimal_point; + expsize = 0; /* XXXGCC -Wuninitialized [sh3,m68000] */ +#endif + convbuf = NULL; + /* sorry, fwprintf(read_only_file, L"") returns WEOF, not 0 */ + if (cantwrite(fp)) { + errno = EBADF; + return (WEOF); + } + + /* optimise fprintf(stderr) (and other unbuffered Unix files) */ + if ((fp->pub._flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) && + fp->pub._fileno >= 0) + return (__sbprintf(fp, fmt0, ap)); + + fmt = __DECONST(wchar_t *, fmt0); + argtable = NULL; + nextarg = 1; + va_copy(orgap, ap); + ret = 0; + + /* + * Scan the format for conversions (`%' character). + */ + for (;;) { + for (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++) + /* void */; + if ((n = fmt - cp) != 0) { + if ((unsigned)ret + n > INT_MAX) { + ret = EOF; + goto error; + } + PRINT(cp, n); + ret += n; + } + if (ch == '\0') + goto done; + fmt++; /* skip over '%' */ + + flags = 0; + dprec = 0; + width = 0; + prec = -1; + sign = '\0'; + ox[1] = '\0'; + expchar = '\0'; + lead = 0; + nseps = nrepeats = 0; + ulval = 0; + ujval = 0; + xdigs = NULL; + +rflag: ch = *fmt++; +reswitch: switch (ch) { + case ' ': + /* + * ``If the space and + flags both appear, the space + * flag will be ignored.'' + * -- ANSI X3J11 + */ + if (!sign) + sign = ' '; + goto rflag; + case '#': + flags |= ALT; + goto rflag; + case '*': + /* + * ``A negative field width argument is taken as a + * - flag followed by a positive field width.'' + * -- ANSI X3J11 + * They don't exclude field widths read from args. + */ + GETASTER (width); + if (width >= 0) + goto rflag; + width = -width; + /* FALLTHROUGH */ + case '-': + flags |= LADJUST; + goto rflag; + case '+': + sign = '+'; + goto rflag; + case '\'': + flags |= GROUPING; + thousands_sep = *(localeconv()->thousands_sep); + grouping = localeconv()->grouping; + goto rflag; + case '.': + if ((ch = *fmt++) == '*') { + GETASTER (prec); + goto rflag; + } + prec = 0; + while (is_digit(ch)) { + prec = 10 * prec + to_digit(ch); + ch = *fmt++; + } + goto reswitch; + case '0': + /* + * ``Note that 0 is taken as a flag, not as the + * beginning of a field width.'' + * -- ANSI X3J11 + */ + flags |= ZEROPAD; + goto rflag; + case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + n = 0; + do { + n = 10 * n + to_digit(ch); + ch = *fmt++; + } while (is_digit(ch)); + if (ch == '$') { + nextarg = n; + if (argtable == NULL) { + argtable = statargtable; + __find_arguments (fmt0, orgap, + &argtable); + } + goto rflag; + } + width = n; + goto reswitch; +#ifndef NO_FLOATING_POINT + case 'L': + flags |= LONGDBL; + goto rflag; +#endif + case 'h': + if (flags & SHORTINT) { + flags &= ~SHORTINT; + flags |= CHARINT; + } else + flags |= SHORTINT; + goto rflag; + case 'j': + flags |= INTMAXT; + goto rflag; + case 'l': + if (flags & LONGINT) { + flags &= ~LONGINT; + flags |= LLONGINT; + } else + flags |= LONGINT; + goto rflag; + case 'q': + flags |= LLONGINT; /* not necessarily */ + goto rflag; + case 't': + flags |= PTRDIFFT; + goto rflag; + case 'z': + flags |= SIZET; + goto rflag; + case 'C': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'c': + if (flags & LONGINT) + *(cp = buf) = (wchar_t)GETARG(wint_t); + else + *(cp = buf) = (wchar_t)btowc(GETARG(int)); + size = 1; + sign = '\0'; + break; + case 'D': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'd': + case 'i': + if (flags & INTMAX_SIZE) { + ujval = SJARG(); + if ((intmax_t)ujval < 0) { + ujval = -ujval; + sign = '-'; + } + } else { + ulval = SARG(); + if ((long)ulval < 0) { + ulval = -ulval; + sign = '-'; + } + } + base = 10; + goto number; +#ifndef NO_FLOATING_POINT +#ifdef notyet + case 'a': + case 'A': + if (ch == 'a') { + ox[1] = 'x'; + xdigs = xdigs_lower; + expchar = 'p'; + } else { + ox[1] = 'X'; + xdigs = xdigs_upper; + expchar = 'P'; + } + if (prec >= 0) + prec++; + if (flags & LONGDBL) { + fparg.ldbl = GETARG(long double); + dtoaresult = + __hldtoa(fparg.ldbl, xdigs, prec, + &expt, &signflag, &dtoaend); + } else { + fparg.dbl = GETARG(double); + dtoaresult = + __hdtoa(fparg.dbl, xdigs, prec, + &expt, &signflag, &dtoaend); + } + + if (prec < 0) + prec = dtoaend - dtoaresult; + if (expt == INT_MAX) + ox[1] = '\0'; + if (convbuf != NULL) + free(convbuf); + ndig = dtoaend - dtoaresult; + cp = convbuf = __mbsconv(dtoaresult, -1); + freedtoa(dtoaresult); + goto fp_common; + case 'e': + case 'E': + expchar = ch; + if (prec < 0) /* account for digit before decpt */ + prec = DEFPREC + 1; + else + prec++; + goto fp_begin; + case 'f': + case 'F': + expchar = '\0'; + goto fp_begin; + case 'g': + case 'G': + expchar = ch - ('g' - 'e'); + if (prec == 0) + prec = 1; +fp_begin: + if (prec < 0) + prec = DEFPREC; + if (convbuf != NULL) + free(convbuf); + if (flags & LONGDBL) { + fparg.ldbl = GETARG(long double); + dtoaresult = + __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec, + &expt, &signflag, &dtoaend); + } else { + fparg.dbl = GETARG(double); + dtoaresult = + dtoa(fparg.dbl, expchar ? 2 : 3, prec, + &expt, &signflag, &dtoaend); + if (expt == 9999) + expt = INT_MAX; + } + ndig = dtoaend - dtoaresult; + cp = convbuf = __mbsconv(dtoaresult, -1); + freedtoa(dtoaresult); +fp_common: + if (signflag) + sign = '-'; + if (expt == INT_MAX) { /* inf or nan */ + if (*cp == 'N') { + cp = (ch >= 'a') ? L"nan" : L"NAN"; + sign = '\0'; + } else + cp = (ch >= 'a') ? L"inf" : L"INF"; + size = 3; + break; + } +#else + case 'e': + case 'E': + case 'f': + case 'F': + case 'g': + case 'G': + if (prec == -1) { + prec = DEFPREC; + } else if ((ch == 'g' || ch == 'G') && prec == 0) { + prec = 1; + } + + if (flags & LONGDBL) { + _double = (double) GETARG(long double); + } else { + _double = GETARG(double); + } + + /* do this before tricky precision changes */ + if (isinf(_double)) { + if (_double < 0) + sign = '-'; + if (ch == 'E' || ch == 'F' || ch == 'G') + cp = L"INF"; + else + cp = L"inf"; + size = 3; + break; + } + if (isnan(_double)) { + if (ch == 'E' || ch == 'F' || ch == 'G') + cp = L"NAN"; + else + cp = L"nan"; + size = 3; + break; + } + + flags |= FPT; + if (dtoaresult != NULL) { + free(dtoaresult); + dtoaresult = NULL; + } + cp = cvt(_double, prec, flags, &softsign, + &expt, ch, &ndig, &dtoaresult); + if (softsign) + sign = '-'; +#endif + flags |= FPT; + if (ch == 'g' || ch == 'G') { + if (expt > -4 && expt <= prec) { + /* Make %[gG] smell like %[fF] */ + expchar = '\0'; + if (flags & ALT) + prec -= expt; + else + prec = ndig - expt; + if (prec < 0) + prec = 0; + } else { + /* + * Make %[gG] smell like %[eE], but + * trim trailing zeroes if no # flag. + */ + if (!(flags & ALT)) + prec = ndig; + } + } + if (expchar) { + expsize = exponent(expstr, expt - 1, expchar); + size = expsize + prec; + if (prec > 1 || flags & ALT) + ++size; + } else { + /* space for digits before decimal point */ + if (expt > 0) + size = expt; + else /* "0" */ + size = 1; + /* space for decimal pt and following digits */ + if (prec || flags & ALT) + size += prec + 1; + if (grouping && expt > 0) { + /* space for thousands' grouping */ + nseps = nrepeats = 0; + lead = expt; + while (*grouping != CHAR_MAX) { + if (lead <= *grouping) + break; + lead -= *grouping; + if (*(grouping+1)) { + nseps++; + grouping++; + } else + nrepeats++; + } + size += nseps + nrepeats; + } else + lead = expt; + } + break; +#endif /* !NO_FLOATING_POINT */ + case 'n': + /* + * Assignment-like behavior is specified if the + * value overflows or is otherwise unrepresentable. + * C99 says to use `signed char' for %hhn conversions. + */ + if (flags & LLONGINT) + *GETARG(quad_t *) = ret; + else if (flags & SIZET) + *GETARG(ssize_t *) = (ssize_t)ret; + else if (flags & PTRDIFFT) + *GETARG(ptrdiff_t *) = ret; + else if (flags & INTMAXT) + *GETARG(intmax_t *) = ret; + else if (flags & LONGINT) + *GETARG(long *) = ret; + else if (flags & SHORTINT) + *GETARG(short *) = ret; + else if (flags & CHARINT) + *GETARG(signed char *) = ret; + else + *GETARG(int *) = ret; + continue; /* no output */ + case 'O': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'o': + if (flags & INTMAX_SIZE) + ujval = UJARG(); + else + ulval = UARG(); + base = 8; + goto nosign; + case 'p': + /* + * ``The argument shall be a pointer to void. The + * value of the pointer is converted to a sequence + * of printable characters, in an implementation- + * defined manner.'' + * -- ANSI X3J11 + */ + ujval = (uintmax_t)(uintptr_t)GETARG(void *); + base = 16; + xdigs = xdigs_lower; + flags = flags | INTMAXT; + ox[1] = 'x'; + goto nosign; + case 'S': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 's': + if (flags & LONGINT) { + if ((cp = GETARG(wchar_t *)) == NULL) + cp = L"(null)"; + } else { + char *mbp; + + if (convbuf != NULL) + free(convbuf); + if ((mbp = GETARG(char *)) == NULL) + cp = L"(null)"; + else { + convbuf = __mbsconv(mbp, prec); + if (convbuf == NULL) { + fp->pub._flags |= __SERR; + goto error; + } + cp = convbuf; + } + } + + if (prec >= 0) { + /* + * can't use wcslen; can only look for the + * NUL in the first `prec' characters, and + * wcslen() will go further. + */ + wchar_t *p = wmemchr(cp, 0, (size_t)prec); + + if (p != NULL) { + size = p - cp; + if (size > prec) + size = prec; + } else + size = prec; + } else + size = wcslen(cp); + sign = '\0'; + break; + case 'U': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'u': + if (flags & INTMAX_SIZE) + ujval = UJARG(); + else + ulval = UARG(); + base = 10; + goto nosign; + case 'X': + xdigs = xdigs_upper; + goto hex; + case 'x': + xdigs = xdigs_lower; +hex: + if (flags & INTMAX_SIZE) + ujval = UJARG(); + else + ulval = UARG(); + base = 16; + /* leading 0x/X only if non-zero */ + if (flags & ALT && + (flags & INTMAX_SIZE ? ujval != 0 : ulval != 0)) + ox[1] = ch; + + flags &= ~GROUPING; + /* unsigned conversions */ +nosign: sign = '\0'; + /* + * ``... diouXx conversions ... if a precision is + * specified, the 0 flag will be ignored.'' + * -- ANSI X3J11 + */ +number: if ((dprec = prec) >= 0) + flags &= ~ZEROPAD; + + /* + * ``The result of converting a zero value with an + * explicit precision of zero is no characters.'' + * -- ANSI X3J11 + * + * ``The C Standard is clear enough as is. The call + * printf("%#.0o", 0) should print 0.'' + * -- Defect Report #151 + */ + cp = buf + BUF; + if (flags & INTMAX_SIZE) { + if (ujval != 0 || prec != 0 || + (flags & ALT && base == 8)) + cp = __ujtoa(ujval, cp, base, + flags & ALT, xdigs, + flags & GROUPING, thousands_sep, + grouping); + } else { + if (ulval != 0 || prec != 0 || + (flags & ALT && base == 8)) + cp = __ultoa(ulval, cp, base, + flags & ALT, xdigs, + flags & GROUPING, thousands_sep, + grouping); + } + size = buf + BUF - cp; + if (size > BUF) /* should never happen */ + abort(); + break; + default: /* "%?" prints ?, unless ? is NUL */ + if (ch == '\0') + goto done; + /* pretend it was %c with argument ch */ + cp = buf; + *cp = ch; + size = 1; + sign = '\0'; + break; + } + + /* + * All reasonable formats wind up here. At this point, `cp' + * points to a string which (if not flags&LADJUST) should be + * padded out to `width' places. If flags&ZEROPAD, it should + * first be prefixed by any sign or other prefix; otherwise, + * it should be blank padded before the prefix is emitted. + * After any left-hand padding and prefixing, emit zeroes + * required by a decimal [diouxX] precision, then print the + * string proper, then emit zeroes required by any leftover + * floating precision; finally, if LADJUST, pad with blanks. + * + * Compute actual size, so we know how much to pad. + * size excludes decimal prec; realsz includes it. + */ + realsz = dprec > size ? dprec : size; + if (sign) + realsz++; + if (ox[1]) + realsz += 2; + + prsize = width > realsz ? width : realsz; + if ((unsigned)ret + prsize > INT_MAX) { + ret = EOF; + goto error; + } + + /* right-adjusting blank padding */ + if ((flags & (LADJUST|ZEROPAD)) == 0) + PAD(width - realsz, blanks); + + /* prefix */ + if (sign) + PRINT(&sign, 1); + + if (ox[1]) { /* ox[1] is either x, X, or \0 */ + ox[0] = '0'; + PRINT(ox, 2); + } + + /* right-adjusting zero padding */ + if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) + PAD(width - realsz, zeroes); + + /* leading zeroes from decimal precision */ + PAD(dprec - size, zeroes); + + /* the string or number proper */ +#ifndef NO_FLOATING_POINT + if ((flags & FPT) == 0) { + PRINT(cp, size); + } else { /* glue together f_p fragments */ + if (!expchar) { /* %[fF] or sufficiently short %[gG] */ + if (expt <= 0) { + PRINT(zeroes, 1); + if (prec || flags & ALT) + PRINT(decimal_point, 1); + PAD(-expt, zeroes); + /* already handled initial 0's */ + prec += expt; + } else { + PRINTANDPAD(cp, convbuf + ndig, lead, zeroes); + cp += lead; + if (grouping) { + while (nseps>0 || nrepeats>0) { + if (nrepeats > 0) + nrepeats--; + else { + grouping--; + nseps--; + } + PRINT(&thousands_sep, + 1); + PRINTANDPAD(cp, + convbuf + ndig, + *grouping, zeroes); + cp += *grouping; + } + if (cp > convbuf + ndig) + cp = convbuf + ndig; + } + if (prec || flags & ALT) { + buf[0] = *decimal_point; + PRINT(buf, 1); + } + } + PRINTANDPAD(cp, convbuf + ndig, prec, zeroes); + } else { /* %[eE] or sufficiently long %[gG] */ + if (prec > 1 || flags & ALT) { + buf[0] = *cp++; + buf[1] = *decimal_point; + PRINT(buf, 2); + PRINT(cp, ndig-1); + PAD(prec - ndig, zeroes); + } else /* XeYYY */ + PRINT(cp, 1); + PRINT(expstr, expsize); + } + } +#else + PRINT(cp, size); +#endif + /* left-adjusting padding (always blank) */ + if (flags & LADJUST) + PAD(width - realsz, blanks); + + /* finally, adjust ret */ + ret += prsize; + } +done: +error: +#ifndef NO_FLOATING_POINT + if (dtoaresult != NULL) + free(dtoaresult); +#endif + va_end(orgap); + if (convbuf != NULL) + free(convbuf); + if (__sferror(fp)) + ret = EOF; + if ((argtable != NULL) && (argtable != statargtable)) + free (argtable); + return (ret); + /* NOTREACHED */ +} + +/* + * Find all arguments when a positional parameter is encountered. Returns a + * table, indexed by argument number, of pointers to each arguments. The + * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries. + * It will be replaces with a malloc-ed one if it overflows. + */ +static void +__find_arguments (const wchar_t *fmt0, va_list ap, union arg **argtable) +{ + wchar_t *fmt; /* format string */ + wchar_t ch; /* character from fmt */ + int n, n2; /* handy integer (short term usage) */ + wchar_t *cp; /* handy char pointer (short term usage) */ + int flags; /* flags as above */ + enum typeid *typetable; /* table of types */ + enum typeid stattypetable [STATIC_ARG_TBL_SIZE]; + int tablesize; /* current size of type table */ + int tablemax; /* largest used index in table */ + int nextarg; /* 1-based argument index */ + + /* + * Add an argument type to the table, expanding if necessary. + */ +#define ADDTYPE(type) \ + /*LINTED null effect*/ \ + (void)((nextarg >= tablesize) ? \ + __grow_type_table(nextarg, &typetable, &tablesize) : (void)0, \ + (nextarg > tablemax) ? tablemax = nextarg : 0, \ + typetable[nextarg++] = type) + +#define ADDSARG() \ + (void)((flags&INTMAXT) ? ADDTYPE(T_INTMAXT) : \ + ((flags&SIZET) ? ADDTYPE(T_SIZET) : \ + ((flags&PTRDIFFT) ? ADDTYPE(T_PTRDIFFT) : \ + ((flags&LLONGINT) ? ADDTYPE(T_LLONG) : \ + ((flags&LONGINT) ? ADDTYPE(T_LONG) : ADDTYPE(T_INT)))))) + +#define ADDUARG() \ + (void)((flags&INTMAXT) ? ADDTYPE(T_UINTMAXT) : \ + ((flags&SIZET) ? ADDTYPE(T_SIZET) : \ + ((flags&PTRDIFFT) ? ADDTYPE(T_PTRDIFFT) : \ + ((flags&LLONGINT) ? ADDTYPE(T_U_LLONG) : \ + ((flags&LONGINT) ? ADDTYPE(T_U_LONG) : ADDTYPE(T_U_INT)))))) + + /* + * Add * arguments to the type array. + */ +#define ADDASTER() \ + n2 = 0; \ + cp = fmt; \ + while (is_digit(*cp)) { \ + n2 = 10 * n2 + to_digit(*cp); \ + cp++; \ + } \ + if (*cp == '$') { \ + int hold = nextarg; \ + nextarg = n2; \ + ADDTYPE (T_INT); \ + nextarg = hold; \ + fmt = ++cp; \ + } else { \ + ADDTYPE (T_INT); \ + } + fmt = __DECONST(wchar_t *, fmt0); + typetable = stattypetable; + tablesize = STATIC_ARG_TBL_SIZE; + tablemax = 0; + nextarg = 1; + for (n = 0; n < STATIC_ARG_TBL_SIZE; n++) + typetable[n] = T_UNUSED; + + /* + * Scan the format for conversions (`%' character). + */ + for (;;) { + for (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++) + /* void */; + if (ch == '\0') + goto done; + fmt++; /* skip over '%' */ + + flags = 0; + +rflag: ch = *fmt++; +reswitch: switch (ch) { + case ' ': + case '#': + goto rflag; + case '*': + ADDASTER (); + goto rflag; + case '-': + case '+': + case '\'': + goto rflag; + case '.': + if ((ch = *fmt++) == '*') { + ADDASTER (); + goto rflag; + } + while (is_digit(ch)) { + ch = *fmt++; + } + goto reswitch; + case '0': + goto rflag; + case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + n = 0; + do { + n = 10 * n + to_digit(ch); + ch = *fmt++; + } while (is_digit(ch)); + if (ch == '$') { + nextarg = n; + goto rflag; + } + goto reswitch; +#ifndef NO_FLOATING_POINT + case 'L': + flags |= LONGDBL; + goto rflag; +#endif + case 'h': + if (flags & SHORTINT) { + flags &= ~SHORTINT; + flags |= CHARINT; + } else + flags |= SHORTINT; + goto rflag; + case 'j': + flags |= INTMAXT; + goto rflag; + case 'l': + if (flags & LONGINT) { + flags &= ~LONGINT; + flags |= LLONGINT; + } else + flags |= LONGINT; + goto rflag; + case 'q': + flags |= LLONGINT; /* not necessarily */ + goto rflag; + case 't': + flags |= PTRDIFFT; + goto rflag; + case 'z': + flags |= SIZET; + goto rflag; + case 'C': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'c': + if (flags & LONGINT) + ADDTYPE(T_WINT); + else + ADDTYPE(T_INT); + break; + case 'D': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'd': + case 'i': + ADDSARG(); + break; +#ifndef NO_FLOATING_POINT + case 'a': + case 'A': + case 'e': + case 'E': + case 'f': + case 'g': + case 'G': + if (flags & LONGDBL) + ADDTYPE(T_LONG_DOUBLE); + else + ADDTYPE(T_DOUBLE); + break; +#endif /* !NO_FLOATING_POINT */ + case 'n': + if (flags & INTMAXT) + ADDTYPE(TP_INTMAXT); + else if (flags & PTRDIFFT) + ADDTYPE(TP_PTRDIFFT); + else if (flags & SIZET) + ADDTYPE(TP_SIZET); + else if (flags & LLONGINT) + ADDTYPE(TP_LLONG); + else if (flags & LONGINT) + ADDTYPE(TP_LONG); + else if (flags & SHORTINT) + ADDTYPE(TP_SHORT); + else if (flags & CHARINT) + ADDTYPE(TP_SCHAR); + else + ADDTYPE(TP_INT); + continue; /* no output */ + case 'O': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'o': + ADDUARG(); + break; + case 'p': + ADDTYPE(TP_VOID); + break; + case 'S': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 's': + if (flags & LONGINT) + ADDTYPE(TP_WCHAR); + else + ADDTYPE(TP_CHAR); + break; + case 'U': + flags |= LONGINT; + /*FALLTHROUGH*/ + case 'u': + case 'X': + case 'x': + ADDUARG(); + break; + default: /* "%?" prints ?, unless ? is NUL */ + if (ch == '\0') + goto done; + break; + } + } +done: + /* + * Build the argument table. + */ + if (tablemax >= STATIC_ARG_TBL_SIZE) { + *argtable = (union arg *) + malloc (sizeof (union arg) * (tablemax + 1)); + } + + (*argtable) [0].intarg = 0; + for (n = 1; n <= tablemax; n++) { + switch (typetable [n]) { + case T_UNUSED: /* whoops! */ + (*argtable) [n].intarg = va_arg (ap, int); + break; + case TP_SCHAR: + (*argtable) [n].pschararg = va_arg (ap, signed char *); + break; + case TP_SHORT: + (*argtable) [n].pshortarg = va_arg (ap, short *); + break; + case T_INT: + (*argtable) [n].intarg = va_arg (ap, int); + break; + case T_U_INT: + (*argtable) [n].uintarg = va_arg (ap, unsigned int); + break; + case TP_INT: + (*argtable) [n].pintarg = va_arg (ap, int *); + break; + case T_LONG: + (*argtable) [n].longarg = va_arg (ap, long); + break; + case T_U_LONG: + (*argtable) [n].ulongarg = va_arg (ap, unsigned long); + break; + case TP_LONG: + (*argtable) [n].plongarg = va_arg (ap, long *); + break; + case T_LLONG: + (*argtable) [n].longlongarg = va_arg (ap, quad_t); + break; + case T_U_LLONG: + (*argtable) [n].ulonglongarg = va_arg (ap, u_quad_t); + break; + case TP_LLONG: + (*argtable) [n].plonglongarg = va_arg (ap, quad_t *); + break; + case T_PTRDIFFT: + (*argtable) [n].ptrdiffarg = va_arg (ap, ptrdiff_t); + break; + case TP_PTRDIFFT: + (*argtable) [n].pptrdiffarg = va_arg (ap, ptrdiff_t *); + break; + case T_SIZET: + (*argtable) [n].sizearg = va_arg (ap, size_t); + break; + case TP_SIZET: + (*argtable) [n].psizearg = va_arg (ap, size_t *); + break; + case T_INTMAXT: + (*argtable) [n].intmaxarg = va_arg (ap, intmax_t); + break; + case T_UINTMAXT: + (*argtable) [n].uintmaxarg = va_arg (ap, uintmax_t); + break; + case TP_INTMAXT: + (*argtable) [n].pintmaxarg = va_arg (ap, intmax_t *); + break; +#ifndef NO_FLOATING_POINT + case T_DOUBLE: + (*argtable) [n].doublearg = va_arg (ap, double); + break; + case T_LONG_DOUBLE: + (*argtable) [n].longdoublearg = va_arg (ap, long double); + break; +#endif + case TP_CHAR: + (*argtable) [n].pchararg = va_arg (ap, char *); + break; + case TP_VOID: + (*argtable) [n].pvoidarg = va_arg (ap, void *); + break; + case T_WINT: + (*argtable) [n].wintarg = va_arg (ap, wint_t); + break; + case TP_WCHAR: + (*argtable) [n].pwchararg = va_arg (ap, wchar_t *); + break; + } + } + + if ((typetable != NULL) && (typetable != stattypetable)) + free (typetable); +} + +/* + * Increase the size of the type table. + */ +static void +__grow_type_table (int nextarg, enum typeid **typetable, int *tablesize) +{ + enum typeid *const oldtable = *typetable; + const int oldsize = *tablesize; + enum typeid *newtable; + int n, newsize = oldsize * 2; + + if (newsize < nextarg + 1) + newsize = nextarg + 1; + if (oldsize == STATIC_ARG_TBL_SIZE) { + if ((newtable = malloc(newsize * sizeof(enum typeid))) == NULL) + abort(); /* XXX handle better */ + bcopy(oldtable, newtable, oldsize * sizeof(enum typeid)); + } else { + newtable = realloc(oldtable, newsize * sizeof(enum typeid)); + if (newtable == NULL) + abort(); /* XXX handle better */ + } + for (n = oldsize; n < newsize; n++) + newtable[n] = T_UNUSED; + + *typetable = newtable; + *tablesize = newsize; +} + + +#ifndef NO_FLOATING_POINT +extern char *__dtoa (double, int, int, int *, int *, char **, char **); + +static wchar_t * +cvt(double value, int ndigits, int flags, char *sign, int *decpt, int ch, + int *length, char **dtoaresult) +{ + int mode, dsgn; + char *digits, *bp, *rve; + static wchar_t buf[512]; + + _DIAGASSERT(decpt != NULL); + _DIAGASSERT(length != NULL); + _DIAGASSERT(sign != NULL); + + if (ch == 'f') { + mode = 3; /* ndigits after the decimal point */ + } else { + /* To obtain ndigits after the decimal point for the 'e' + * and 'E' formats, round to ndigits + 1 significant + * figures. + */ + if (ch == 'e' || ch == 'E') { + ndigits++; + } + mode = 2; /* ndigits significant digits */ + } + + digits = __dtoa(value, mode, ndigits, decpt, &dsgn, &rve, dtoaresult); + if (dsgn) { + value = -value; + *sign = '-'; + } else + *sign = '\000'; + if ((ch != 'g' && ch != 'G') || flags & ALT) { /* Print trailing zeros */ + bp = digits + ndigits; + if (ch == 'f') { + if (*digits == '0' && value) + *decpt = -ndigits + 1; + bp += *decpt; + } + if (value == 0) /* kludge for __dtoa irregularity */ + rve = bp; + while (rve < bp) + *rve++ = '0'; + } + *length = rve - digits; + (void)mbstowcs(buf, digits, sizeof(buf)/sizeof(buf[0])); + return buf; +} +static int +exponent(wchar_t *p0, int expo, wchar_t fmtch) +{ + wchar_t *p, *t; + wchar_t expbuf[MAXEXPDIG]; + + p = p0; + *p++ = fmtch; + if (expo < 0) { + expo = -expo; + *p++ = '-'; + } + else + *p++ = '+'; + t = expbuf + MAXEXPDIG; + if (expo > 9) { + do { + *--t = to_char(expo % 10); + } while ((expo /= 10) > 9); + *--t = to_char(expo); + for (; t < expbuf + MAXEXPDIG; *p++ = *t++); + } + else { + /* + * Exponents for decimal floating point conversions + * (%[eEgG]) must be at least two characters long, + * whereas exponents for hexadecimal conversions can + * be only one character long. + */ + if (fmtch == 'e' || fmtch == 'E') + *p++ = '0'; + *p++ = to_char(expo); + } + return (p - p0); +} +#endif /* !NO_FLOATING_POINT */