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--- Libc/Libc-763.11/stdio/FreeBSD/vfwprintf.c
+++ /dev/null
@@ -1,1086 +0,0 @@
-/*-
- * 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.
- * 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.
- */
-
-#if 0
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)vfprintf.c 8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-#endif
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdio/vfwprintf.c,v 1.42 2009/11/25 04:27:55 wollman 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 <sys/types.h>
-
-#include <ctype.h>
-#include <limits.h>
-#include <locale.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
-#include <wctype.h>
-#include "un-namespace.h"
-
-#include "libc_private.h"
-#include "local.h"
-#include "fvwrite.h"
-#include "printflocal.h"
-
-static int __sprint(FILE *, struct __suio *);
-static int __sbprintf(FILE *, const wchar_t *, va_list) __noinline;
-static wint_t __xfputwc(wchar_t, FILE *);
-static wchar_t *__mbsconv(char *, int);
-
-#define CHAR wchar_t
-#include "printfcommon.h"
-
-struct grouping_state {
- wchar_t thousands_sep; /* locale-specific thousands separator */
- const char *grouping; /* locale-specific numeric grouping rules */
- int lead; /* sig figs before decimal or group sep */
- int nseps; /* number of group separators with ' */
- int nrepeats; /* number of repeats of the last group */
-};
-
-static const mbstate_t initial_mbs;
-
-static inline wchar_t
-get_decpt(void)
-{
- mbstate_t mbs;
- wchar_t decpt;
- int nconv;
-
- mbs = initial_mbs;
- nconv = mbrtowc(&decpt, localeconv()->decimal_point, MB_CUR_MAX, &mbs);
- if (nconv == (size_t)-1 || nconv == (size_t)-2)
- decpt = '.'; /* failsafe */
- return (decpt);
-}
-
-static inline wchar_t
-get_thousep(void)
-{
- mbstate_t mbs;
- wchar_t thousep;
- int nconv;
-
- mbs = initial_mbs;
- nconv = mbrtowc(&thousep, localeconv()->thousands_sep,
- MB_CUR_MAX, &mbs);
- if (nconv == (size_t)-1 || nconv == (size_t)-2)
- thousep = '\0'; /* failsafe */
- return (thousep);
-}
-
-/*
- * Initialize the thousands' grouping state in preparation to print a
- * number with ndigits digits. This routine returns the total number
- * of wide characters that will be printed.
- */
-static int
-grouping_init(struct grouping_state *gs, int ndigits)
-{
-
- gs->grouping = localeconv()->grouping;
- gs->thousands_sep = get_thousep();
-
- gs->nseps = gs->nrepeats = 0;
- gs->lead = ndigits;
- while (*gs->grouping != CHAR_MAX) {
- if (gs->lead <= *gs->grouping)
- break;
- gs->lead -= *gs->grouping;
- if (*(gs->grouping+1)) {
- gs->nseps++;
- gs->grouping++;
- } else
- gs->nrepeats++;
- }
- return (gs->nseps + gs->nrepeats);
-}
-
-/*
- * Print a number with thousands' separators.
- */
-static int
-grouping_print(struct grouping_state *gs, struct io_state *iop,
- const CHAR *cp, const CHAR *ep)
-{
- const CHAR *cp0 = cp;
-
- if (io_printandpad(iop, cp, ep, gs->lead, zeroes))
- return (-1);
- cp += gs->lead;
- while (gs->nseps > 0 || gs->nrepeats > 0) {
- if (gs->nrepeats > 0)
- gs->nrepeats--;
- else {
- gs->grouping--;
- gs->nseps--;
- }
- if (io_print(iop, &gs->thousands_sep, 1))
- return (-1);
- if (io_printandpad(iop, cp, ep, *gs->grouping, zeroes))
- return (-1);
- cp += *gs->grouping;
- }
- if (cp > ep)
- cp = ep;
- return (cp - cp0);
-}
-
-
-/*
- * Flush out all the vectors defined by the given uio,
- * then reset it so that it can be reused.
- *
- * XXX The fact that we do this a character at a time and convert to a
- * multibyte character sequence even if the destination is a wide
- * string eclipses the benefits of buffering.
- */
-static int
-__sprint(FILE *fp, struct __suio *uio)
-{
- struct __siov *iov;
- wchar_t *p;
- int i, len;
-
- iov = uio->uio_iov;
- for (; uio->uio_resid != 0; uio->uio_resid -= len, iov++) {
- p = (wchar_t *)iov->iov_base;
- len = iov->iov_len;
- for (i = 0; i < len; i++) {
- if (__xfputwc(p[i], fp) == WEOF)
- return (-1);
- }
- }
- uio->uio_iovcnt = 0;
- return (0);
-}
-
-/*
- * 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];
-
- /* XXX This is probably not needed. */
- if (prepwrite(fp) != 0)
- return (EOF);
-
- /* copy the important variables */
- fake._flags = fp->_flags & ~__SNBF;
- fake._file = fp->_file;
- fake._cookie = fp->_cookie;
- fake._write = fp->_write;
- fake._orientation = fp->_orientation;
- fake._mbstate = fp->_mbstate;
-
- /* set up the buffer */
- fake._bf._base = fake._p = buf;
- fake._bf._size = fake._w = sizeof(buf);
- fake._lbfsize = 0; /* not actually used, but Just In Case */
-
- /* do the work, then copy any error status */
- ret = __vfwprintf(&fake, fmt, ap);
- if (ret >= 0 && __fflush(&fake))
- ret = WEOF;
- if (fake._flags & __SERR)
- fp->_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)
-{
- mbstate_t mbs;
- char buf[MB_LEN_MAX];
- struct __suio uio;
- struct __siov iov;
- size_t len;
-
- if ((fp->_flags & __SSTR) == 0)
- return (__fputwc(wc, fp));
-
- mbs = initial_mbs;
- if ((len = wcrtomb(buf, wc, &mbs)) == (size_t)-1) {
- fp->_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);
-}
-
-/*
- * 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)
-{
- 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_mbs;
- 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);
- nconv = 0;
- }
-
- /*
- * 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_mbs;
- 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);
- /* optimise fprintf(stderr) (and other unbuffered Unix files) */
- if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
- fp->_file >= 0)
- ret = __sbprintf(fp, fmt0, ap);
- else
- ret = __vfwprintf(fp, fmt0, ap);
- FUNLOCKFILE(fp);
- return (ret);
-}
-
-/*
- * The size of the buffer we use as scratch space for integer
- * conversions, among other things. We need enough space to
- * write a uintmax_t in octal (plus one byte).
- */
-#if UINTMAX_MAX <= UINT64_MAX
-#define BUF 32
-#else
-#error "BUF must be large enough to format a uintmax_t"
-#endif
-
-/*
- * Non-MT-safe version
- */
-int
-__vfwprintf(FILE *fp, const wchar_t *fmt0, va_list ap)
-{
- 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 */
- 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) */
- struct grouping_state gs; /* thousands' grouping info */
-#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
- */
- wchar_t decimal_point; /* locale specific decimal point */
- int signflag; /* true if float is negative */
- union { /* floating point arguments %[aAeEfFgG] */
- double dbl;
- long double ldbl;
- } fparg;
- int expt; /* integer value of exponent */
- char expchar; /* exponent character: [eEpP\0] */
- char *dtoaend; /* pointer to end of converted digits */
- int expsize; /* character count for expstr */
- int ndig; /* actual number of digits returned by dtoa */
- wchar_t expstr[MAXEXPDIG+2]; /* buffer for exponent string: e+ZZZ */
- char *dtoaresult; /* buffer allocated by dtoa */
-#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 */
- struct io_state io; /* I/O buffering state */
- 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 */
-
- static const char xdigs_lower[16] = "0123456789abcdef";
- static const char xdigs_upper[16] = "0123456789ABCDEF";
-
- /* BEWARE, these `goto error' on error. */
-#define PRINT(ptr, len) do { \
- if (io_print(&io, (ptr), (len))) \
- goto error; \
-} while (0)
-#define PAD(howmany, with) { \
- if (io_pad(&io, (howmany), (with))) \
- goto error; \
-}
-#define PRINTANDPAD(p, ep, len, with) { \
- if (io_printandpad(&io, (p), (ep), (len), (with))) \
- goto error; \
-}
-#define FLUSH() { \
- if (io_flush(&io)) \
- goto error; \
-}
-
- /*
- * 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) \
- ((argtable != NULL) ? *((type*)(&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(ssize_t) : \
- flags&PTRDIFFT ? (intmax_t)GETARG(ptrdiff_t) : \
- (intmax_t)GETARG(long long))
-#define UJARG() \
- (flags&INTMAXT ? GETARG(uintmax_t) : \
- flags&SIZET ? (uintmax_t)GETARG(size_t) : \
- flags&PTRDIFFT ? (uintmax_t)GETARG(ptrdiff_t) : \
- (uintmax_t)GETARG(unsigned long long))
-
- /*
- * 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; \
- if (__find_warguments (fmt0, orgap, &argtable)) { \
- ret = EOF; \
- goto error; \
- } \
- } \
- nextarg = n2; \
- val = GETARG (int); \
- nextarg = hold; \
- fmt = ++cp; \
- } else { \
- val = GETARG (int); \
- }
-
-
- /* sorry, fwprintf(read_only_file, L"") returns WEOF, not 0 */
- if (prepwrite(fp) != 0)
- return (EOF);
-
- convbuf = NULL;
- fmt = (wchar_t *)fmt0;
- argtable = NULL;
- nextarg = 1;
- va_copy(orgap, ap);
- io_init(&io, fp);
- ret = 0;
-#ifndef NO_FLOATING_POINT
- decimal_point = get_decpt();
-#endif
-
- /*
- * 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;
- gs.grouping = NULL;
- sign = '\0';
- ox[1] = '\0';
-
-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;
- 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;
- if (__find_warguments (fmt0, orgap,
- &argtable)) {
- ret = EOF;
- goto error;
- }
- }
- 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
- 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;
- flags &= ~ZEROPAD;
- break;
- }
- 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 ((flags & GROUPING) && expt > 0)
- size += grouping_init(&gs, 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(long long *) = 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->_flags |= __SERR;
- goto error;
- }
- cp = convbuf;
- }
- }
- size = (prec >= 0) ? wcsnlen(cp, prec) : 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);
- } else {
- if (ulval != 0 || prec != 0 ||
- (flags & ALT && base == 8))
- cp = __ultoa(ulval, cp, base,
- flags & ALT, xdigs);
- }
- size = buf + BUF - cp;
- if (size > BUF) /* should never happen */
- abort();
- if ((flags & GROUPING) && size != 0)
- size += grouping_init(&gs, size);
- 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);
-
- /* the string or number proper */
-#ifndef NO_FLOATING_POINT
- if ((flags & FPT) == 0) {
-#endif
- /* leading zeroes from decimal precision */
- PAD(dprec - size, zeroes);
- if (gs.grouping) {
- if (grouping_print(&gs, &io, cp, buf+BUF) < 0)
- goto error;
- } else {
- PRINT(cp, size);
- }
-#ifndef NO_FLOATING_POINT
- } 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 {
- if (gs.grouping) {
- n = grouping_print(&gs, &io,
- cp, convbuf + ndig);
- if (n < 0)
- goto error;
- cp += n;
- } else {
- PRINTANDPAD(cp, convbuf + ndig,
- expt, zeroes);
- cp += expt;
- }
- if (prec || flags & ALT)
- PRINT(&decimal_point, 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);
- }
- }
-#endif
- /* left-adjusting padding (always blank) */
- if (flags & LADJUST)
- PAD(width - realsz, blanks);
-
- /* finally, adjust ret */
- ret += prsize;
-
- FLUSH(); /* copy out the I/O vectors */
- }
-done:
- FLUSH();
-error:
- va_end(orgap);
- if (convbuf != NULL)
- free(convbuf);
- if (__sferror(fp))
- ret = EOF;
- if ((argtable != NULL) && (argtable != statargtable))
- free (argtable);
- return (ret);
- /* NOTREACHED */
-}