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--- Libc/Libc-1725.40.4/stdio/FreeBSD/vfprintf.c
+++ /dev/null
@@ -1,1468 +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.
- */
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wint-conversion"
-
-#include <TargetConditionals.h>
-#if !TARGET_OS_DRIVERKIT
-#define OS_CRASH_ENABLE_EXPERIMENTAL_LIBTRACE 1
-#endif
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)vfprintf.c 8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdio/vfprintf.c,v 1.90 2009/02/28 06:06:57 das Exp $");
-
-#include "xlocale_private.h"
-
-/*
- * Actual printf innards.
- *
- * This code is large and complicated...
- */
-
-#include "namespace.h"
-#include <sys/types.h>
-
-#include <ctype.h>
-#include <limits.h>
-#include <locale.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
-#if 0 // xprintf pending API review
-#include <printf.h>
-#endif
-#include <errno.h>
-
-#include <stdarg.h>
-#include "un-namespace.h"
-
-#include <os/assumes.h>
-#include <mach-o/dyld_priv.h>
-#include <mach/mach.h>
-
-#include "libc_private.h"
-#include "local.h"
-#include "fvwrite.h"
-#include "printflocal.h"
-#include "libc_hooks_impl.h"
-
-static int __sprint(FILE *, locale_t, struct __suio *);
-#if 0
-static int __sbprintf(FILE *, locale_t, const char *, va_list) __printflike(3, 0);
-#endif
-static char *__wcsconv(wchar_t *, int, locale_t);
-
-__private_extern__ const char *__fix_nogrouping(const char *);
-
-#define CHAR char
-#include "printfcommon.h"
-
-struct grouping_state {
- char *thousands_sep; /* locale-specific thousands separator */
- int thousep_len; /* length of thousands_sep */
- 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 */
-};
-
-/*
- * Initialize the thousands' grouping state in preparation to print a
- * number with ndigits digits. This routine returns the total number
- * of bytes that will be needed.
- */
-static int
-grouping_init(struct grouping_state *gs, int ndigits, locale_t loc)
-{
- struct lconv *locale;
-
- locale = localeconv_l(loc);
- gs->grouping = __fix_nogrouping(locale->grouping);
- gs->thousands_sep = locale->thousands_sep;
- gs->thousep_len = strlen(gs->thousands_sep);
-
- 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) * gs->thousep_len);
-}
-
-/*
- * Print a number with thousands' separators.
- */
-static int
-grouping_print(struct grouping_state *gs, struct io_state *iop,
- const CHAR *cp, const CHAR *ep, locale_t loc)
-{
- const CHAR *cp0 = cp;
-
- if (io_printandpad(iop, cp, ep, gs->lead, zeroes, loc))
- 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, gs->thousep_len, loc))
- return (-1);
- if (io_printandpad(iop, cp, ep, *gs->grouping, zeroes, loc))
- 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.
- */
-static int
-__sprint(FILE *fp, locale_t loc __unused, struct __suio *uio)
-{
- int err;
-
- if (uio->uio_resid == 0) {
- uio->uio_iovcnt = 0;
- return (0);
- }
- err = __sfvwrite(fp, uio);
- uio->uio_resid = 0;
- uio->uio_iovcnt = 0;
- return (err);
-}
-
-#if 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, locale_t loc, const char *fmt, va_list ap)
-{
- int ret;
- FILE fake;
- unsigned char buf[BUFSIZ];
- struct __sFILEX ext;
- fake._extra = &ext;
- INITEXTRA(&fake);
-
- /* 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 = __vfprintf(&fake, loc, fmt, ap);
- if (ret >= 0 && __fflush(&fake))
- ret = EOF;
- if (fake._flags & __SERR)
- fp->_flags |= __SERR;
- return (ret);
-}
-#endif
-
-/*
- * Convert a wide character string argument for the %ls format to a multibyte
- * string representation. If not -1, prec specifies the maximum number of
- * bytes to output, and also means that we can't assume that the wide char.
- * string ends is null-terminated.
- */
-static char *
-__wcsconv(wchar_t *wcsarg, int prec, locale_t loc)
-{
- static const mbstate_t initial;
- mbstate_t mbs;
- char buf[MB_LEN_MAX];
- wchar_t *p;
- char *convbuf;
- size_t clen, nbytes;
-
- /* Allocate space for the maximum number of bytes we could output. */
- if (prec < 0) {
- p = wcsarg;
- mbs = initial;
- nbytes = wcsrtombs_l(NULL, (const wchar_t **)&p, 0, &mbs, loc);
- if (nbytes == (size_t)-1)
- return (NULL);
- } else {
- /*
- * Optimisation: if the output precision is small enough,
- * just allocate enough memory for the maximum instead of
- * scanning the string.
- */
- if (prec < 128)
- nbytes = prec;
- else {
- nbytes = 0;
- p = wcsarg;
- mbs = initial;
- for (;;) {
- clen = wcrtomb_l(buf, *p++, &mbs, loc);
- if (clen == 0 || clen == (size_t)-1 ||
- nbytes + clen > prec)
- break;
- nbytes += clen;
- }
- }
- }
- if ((convbuf = malloc(nbytes + 1)) == NULL)
- return (NULL);
-
- /* Fill the output buffer. */
- p = wcsarg;
- mbs = initial;
- if ((nbytes = wcsrtombs_l(convbuf, (const wchar_t **)&p,
- nbytes, &mbs, loc)) == (size_t)-1) {
- free(convbuf);
- return (NULL);
- }
- convbuf[nbytes] = '\0';
- return (convbuf);
-}
-
-/*
- * MT-safe version
- */
-int
-vfprintf_l(FILE * __restrict fp, locale_t loc, const char * __restrict fmt0, va_list ap)
-
-{
- int ret;
-
- libc_hooks_will_write(fp, sizeof(*fp));
-
- FLOCKFILE(fp);
- ret = __xvprintf(XPRINTF_PLAIN, NULL, fp, loc, fmt0, ap);
- FUNLOCKFILE(fp);
- return (ret);
-}
-
-int
-vfprintf(FILE * __restrict fp, const char * __restrict fmt0, va_list ap)
-
-{
- int ret;
-
- libc_hooks_will_write(fp, sizeof(*fp));
-
- FLOCKFILE(fp);
- ret = __xvprintf(XPRINTF_PLAIN, NULL, fp, __current_locale(), 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
-
-__private_extern__ bool
-__printf_is_memory_read_only(void *addr, size_t __unused size)
-{
- vm_address_t address = addr;
- vm_size_t vmsize = 0;
- vm_region_basic_info_data_64_t info;
- mach_msg_type_number_t info_cnt = VM_REGION_BASIC_INFO_COUNT_64;
- memory_object_name_t object = MACH_PORT_NULL;
- kern_return_t kr = KERN_SUCCESS;
-
- kr = vm_region_64(mach_task_self(),
- &address,
- &vmsize,
- VM_REGION_BASIC_INFO_64,
- (vm_region_info_t) &info,
- &info_cnt,
- &object);
- return (kr == KERN_SUCCESS) && !(info.protection & VM_PROT_WRITE);
-}
-
-/*
- * Non-MT-safe version
- */
-__private_extern__ int
-__vfprintf(FILE *fp, locale_t loc, const char *fmt0, va_list ap)
-{
- char *fmt; /* format string */
- int ch; /* character from fmt */
- ssize_t n, n2; /* handy integer (short term usage) */
- char *cp; /* handy char pointer (short term usage) */
- int flags; /* flags as above */
- ssize_t ret; /* return value accumulator */
- ssize_t width; /* width from format (%8d), or 0 */
- ssize_t prec; /* precision from format; <0 for N/A */
- char sign; /* sign prefix (' ', '+', '-', or \0) */
- struct grouping_state gs; /* thousands' grouping info */
-
-#ifndef ALLOW_DYNAMIC_PERCENT_N
- bool static_format_checked = false;
-#endif // ALLOW_DYNAMIC_PERCENT_N
-
-#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
- */
- char *decimal_point; /* locale specific decimal point */
- int decpt_len; /* length of 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 */
- char expstr[MAXEXPDIG+2]; /* buffer for exponent string: e+ZZZ */
- char *dtoaresult; /* buffer allocated by dtoa */
-#endif
-#ifdef VECTORS
- union arg vval; /* Vector argument. */
- char *pct; /* Pointer to '%' at beginning of specifier. */
- char vsep; /* Vector separator character. */
-#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 */
- ssize_t realsz; /* field size expanded by dprec, sign, etc */
- ssize_t size; /* size of converted field or string */
- ssize_t prsize; /* max size of printed field */
- const char *xdigs; /* digits for %[xX] conversion */
- struct io_state io; /* I/O buffering state */
- char buf[BUF]; /* buffer with space for digits of uintmax_t */
- char ox[2]; /* space for 0x; ox[1] is either x, X, or \0 */
- 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 */
- char *convbuf; /* wide to multibyte 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) { \
- if (io_print(&io, (ptr), (len), loc)) \
- goto error; \
-}
-#define PAD(howmany, with) { \
- if (io_pad(&io, (howmany), (with), loc)) \
- goto error; \
-}
-#define PRINTANDPAD(p, ep, len, with) { \
- if (io_printandpad(&io, (p), (ep), (len), (with), loc)) \
- goto error; \
-}
-#define FLUSH() { \
- if (io_flush(&io, loc)) \
- 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)(unsigned long)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_arguments (fmt0, orgap, &argtable)) { \
- ret = EOF; \
- goto error; \
- } \
- } \
- nextarg = n2; \
- val = GETARG (int); \
- nextarg = hold; \
- fmt = ++cp; \
- } else { \
- val = GETARG (int); \
- }
-
- /* The following has been moved to __v2printf() */
-#if 0
- /* sorry, fprintf(read_only_file, "") returns EOF, not 0 */
- if (prepwrite(fp) != 0) {
- errno = EBADF;
- return (EOF);
- }
- ORIENT(fp, -1);
-#endif
-
- convbuf = NULL;
- fmt = (char *)fmt0;
- argtable = NULL;
- nextarg = 1;
- va_copy(orgap, ap);
- io_init(&io, fp);
- ret = 0;
-#ifndef NO_FLOATING_POINT
- dtoaresult = NULL;
- decimal_point = localeconv_l(loc)->decimal_point;
- /* The overwhelmingly common case is decpt_len == 1. */
- decpt_len = (decimal_point[1] == '\0' ? 1 : strlen(decimal_point));
-#endif
-
- /*
- * Scan the format for conversions (`%' character).
- */
- for (;;) {
- for (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++)
- /* void */;
- if ((n = fmt - cp) != 0) {
- if (ret + n >= INT_MAX) {
- ret = EOF;
- errno = EOVERFLOW;
- goto error;
- }
- PRINT(cp, n);
- ret += n;
- }
- if (ch == '\0')
- goto done;
-#ifdef VECTORS
- pct = fmt;
-#endif /* VECTORS */
- fmt++; /* skip over '%' */
-
- flags = 0;
- dprec = 0;
- width = 0;
- prec = -1;
- gs.grouping = NULL;
- sign = '\0';
- ox[1] = '\0';
-#ifdef VECTORS
- vsep = 'X'; /* Illegal value, changed to defaults later. */
-#endif /* VECTORS */
-
-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;
-#ifdef VECTORS
- case ',': case ';': case ':': case '_':
- vsep = ch;
- goto rflag;
-#endif /* VECTORS */
- 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_arguments (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':
-#ifdef VECTORS
- if (flags & VECTOR)
- break;
-#endif /* VECTORS */
- if (flags & LONGINT) {
- static const mbstate_t initial;
- mbstate_t mbs;
- size_t mbseqlen;
-
- mbs = initial;
- mbseqlen = wcrtomb_l(cp = buf,
- (wchar_t)GETARG(wint_t), &mbs, loc);
- if (mbseqlen == (size_t)-1) {
- fp->_flags |= __SERR;
- goto error;
- }
- size = (int)mbseqlen;
- } else {
- *(cp = buf) = GETARG(int);
- size = 1;
- }
- sign = '\0';
- break;
- case 'D':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'd':
- case 'i':
-#ifdef VECTORS
- if (flags & VECTOR)
- break;
-#endif /* VECTORS */
- 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':
-#ifdef VECTORS
- if (flags & VECTOR) {
- flags |= FPT;
- break;
- }
-#endif /* VECTORS */
- 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 (dtoaresult != NULL)
- freedtoa(dtoaresult);
- if (flags & LONGDBL) {
- fparg.ldbl = GETARG(long double);
- dtoaresult = cp =
- __hldtoa(fparg.ldbl, xdigs, prec,
- &expt, &signflag, &dtoaend);
- } else {
- fparg.dbl = GETARG(double);
- dtoaresult = cp =
- __hdtoa(fparg.dbl, xdigs, prec,
- &expt, &signflag, &dtoaend);
- }
- if (prec < 0)
- prec = dtoaend - cp;
- if (expt == INT_MAX)
- ox[1] = '\0';
- goto fp_common;
- case 'e':
- case 'E':
-#ifdef VECTORS
- if (flags & VECTOR) {
- flags |= FPT;
- break;
- }
-#endif /* VECTORS */
- expchar = ch;
- if (prec < 0) /* account for digit before decpt */
- prec = DEFPREC + 1;
- else
- prec++;
- goto fp_begin;
- case 'f':
- case 'F':
-#ifdef VECTORS
- if (flags & VECTOR) {
- flags |= FPT;
- break;
- }
-#endif /* VECTORS */
- expchar = '\0';
- goto fp_begin;
- case 'g':
- case 'G':
-#ifdef VECTORS
- if (flags & VECTOR) {
- flags |= FPT;
- break;
- }
-#endif /* VECTORS */
- expchar = ch - ('g' - 'e');
- if (prec == 0)
- prec = 1;
-fp_begin:
- if (prec < 0)
- prec = DEFPREC;
- if (dtoaresult != NULL)
- freedtoa(dtoaresult);
- if (flags & LONGDBL) {
- fparg.ldbl = GETARG(long double);
- dtoaresult = cp =
- __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec,
- &expt, &signflag, &dtoaend);
- } else {
- fparg.dbl = GETARG(double);
- dtoaresult = cp =
- dtoa(fparg.dbl, expchar ? 2 : 3, prec,
- &expt, &signflag, &dtoaend);
- if (expt == 9999)
- expt = INT_MAX;
- }
-fp_common:
- if (signflag)
- sign = '-';
- if (expt == INT_MAX) { /* inf or nan */
- if (*cp == 'N') {
- cp = (ch >= 'a') ? "nan" : "NAN";
- sign = '\0';
- } else
- cp = (ch >= 'a') ? "inf" : "INF";
- size = 3;
- flags &= ~ZEROPAD;
- break;
- }
- flags |= FPT;
- ndig = dtoaend - cp;
- 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 += decpt_len;
- } 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 + decpt_len;
- if ((flags & GROUPING) && expt > 0)
- size += grouping_init(&gs, expt, loc);
- }
- 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.
- */
- void *ptr = GETARG(void *);
- if (ptr == NULL)
- continue;
-
-#ifndef ALLOW_DYNAMIC_PERCENT_N
- if (!static_format_checked) {
- static_format_checked = __printf_is_memory_read_only((void*)fmt0, strlen(fmt0));
- }
- if (!static_format_checked) {
-#if OS_CRASH_ENABLE_EXPERIMENTAL_LIBTRACE
- os_crash("%%n used in a non-immutable format string: %s", fmt0);
-#else
- os_crash("%%n used in a non-immutable format string");
-#endif
- }
-#endif // ALLOW_DYNAMIC_PERCENT_N
-
- if (flags & LLONGINT) {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, long long, ret);
- } else if (flags & SIZET) {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, ssize_t, ret);
- } else if (flags & PTRDIFFT) {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, ptrdiff_t, ret);
- } else if (flags & INTMAXT) {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, intmax_t, ret);
- } else if (flags & LONGINT) {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, long, ret);
- } else if (flags & SHORTINT) {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, short, ret);
- } else if (flags & CHARINT) {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, signed char, ret);
- } else {
- LIBC_HOOKS_WRITE_SIMPLE_TYPE(ptr, int, ret);
- }
- continue; /* no output */
- }
- case 'O':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'o':
-#ifdef VECTORS
- if (flags & VECTOR)
- break;
-#endif /* VECTORS */
- 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
- */
-#ifdef VECTORS
- if (flags & VECTOR)
- break;
-#endif /* VECTORS */
- 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) {
- wchar_t *wcp;
-
- free(convbuf);
- if ((wcp = GETARG(wchar_t *)) == NULL) {
- convbuf = NULL;
- cp = "(null)";
- } else {
- convbuf = __wcsconv(wcp, prec, loc);
- if (convbuf == NULL) {
- fp->_flags |= __SERR;
- goto error;
- }
- cp = convbuf;
- }
- } else if ((cp = GETARG(char *)) == NULL)
- cp = "(null)";
- {
- size_t cp_len = (prec >= 0) ? strnlen(cp, prec) : strlen(cp);
- if (cp_len < INT_MAX) {
- size = cp_len;
- } else {
- ret = EOF;
- goto error;
- }
- libc_hooks_will_read(cp, size);
- }
- sign = '\0';
- break;
- case 'U':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'u':
-#ifdef VECTORS
- if (flags & VECTOR)
- break;
-#endif /* VECTORS */
- 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:
-#ifdef VECTORS
- if (flags & VECTOR)
- break;
-#endif /* VECTORS */
- 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
- * except for %#.0o and zero value
- */
-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 */
- LIBC_ABORT("size (%zd) > BUF (%d)", size, BUF);
- if ((flags & GROUPING) && size != 0)
- size += grouping_init(&gs, size, loc);
- break;
-#ifdef VECTORS
- case 'v':
- flags |= VECTOR;
- goto rflag;
-#endif /* VECTORS */
- 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;
- }
-
-#ifdef VECTORS
- if (flags & VECTOR) {
- /*
- * Do the minimum amount of work necessary to construct
- * a format specifier that can be used to recursively
- * call vfprintf() for each element in the vector.
- */
- int i, j; /* Counter. */
- int vcnt; /* Number of elements in vector. */
- char *vfmt; /* Pointer to format specifier. */
-#define EXTRAHH 2
- char vfmt_buf[32 + EXTRAHH]; /* Static buffer for format spec. */
- int vwidth = 0; /* Width specified via '*'. */
- int vprec = 0; /* Precision specified via '*'. */
- char *vstr; /* Used for asprintf(). */
- int vlen; /* Length returned by asprintf(). */
- enum {
- V_CHAR, V_SHORT, V_INT,
- V_PCHAR, V_PSHORT, V_PINT,
- V_FLOAT,
-#ifdef V64TYPE
- V_LONGLONG, V_PLONGLONG,
- V_DOUBLE,
-#endif /* V64TYPE */
- } vtype;
-
- vval.vectorarg = GETARG(VECTORTYPE);
- /*
- * Set vfmt. If vfmt_buf may not be big enough,
- * malloc() space, taking care to free it later.
- * (EXTRAHH is for possible extra "hh")
- */
- if (&fmt[-1] - pct + EXTRAHH < sizeof(vfmt_buf))
- vfmt = vfmt_buf;
- else
- vfmt = (char *)malloc(&fmt[-1] - pct + EXTRAHH + 1);
-
- /* Set the separator character, if not specified. */
- if (vsep == 'X') {
- if (ch == 'c')
- vsep = '\0';
- else
- vsep = ' ';
- }
-
- /* Create the format specifier. */
- for (i = j = 0; i < &fmt[-1] - pct; i++) {
- switch (pct[i]) {
- case ',': case ';': case ':': case '_':
- case 'v': case 'h': case 'l':
- /* Ignore. */
- break;
- case '*':
- if (pct[i - 1] != '.')
- vwidth = 1;
- else
- vprec = 1;
- /* FALLTHROUGH */
- default:
- vfmt[j++] = pct[i];
- }
- }
-
- /*
- * Determine the number of elements in the vector and
- * finish up the format specifier.
- */
- if (flags & SHORTINT) {
- switch (ch) {
- case 'c':
- vtype = V_SHORT;
- break;
- case 'p':
- vtype = V_PSHORT;
- break;
- default:
- vfmt[j++] = 'h';
- vtype = V_SHORT;
- break;
- }
- vcnt = 8;
- } else if (flags & LONGINT) {
- vcnt = 4;
- vtype = (ch == 'p') ? V_PINT : V_INT;
-#ifdef V64TYPE
- } else if (flags & LLONGINT) {
- switch (ch) {
- case 'a':
- case 'A':
- case 'e':
- case 'E':
- case 'f':
- case 'g':
- case 'G':
- vcnt = 2;
- vtype = V_DOUBLE;
- break;
- case 'd':
- case 'i':
- case 'u':
- case 'o':
- case 'p':
- case 'x':
- case 'X':
- vfmt[j++] = 'l';
- vfmt[j++] = 'l';
- vcnt = 2;
- vtype = (ch == 'p') ? V_PLONGLONG : V_LONGLONG;
- break;
- default:
- /*
- * The default case should never
- * happen.
- */
- case 'c':
- vcnt = 16;
- vtype = V_CHAR;
- }
-#endif /* V64TYPE */
- } else {
- switch (ch) {
- case 'a':
- case 'A':
- case 'e':
- case 'E':
- case 'f':
- case 'g':
- case 'G':
- vcnt = 4;
- vtype = V_FLOAT;
- break;
- default:
- /*
- * The default case should never
- * happen.
- */
- case 'd':
- case 'i':
- case 'u':
- case 'o':
- case 'x':
- case 'X':
- vfmt[j++] = 'h';
- vfmt[j++] = 'h';
- /* drop through */
- case 'p':
- case 'c':
- vcnt = 16;
- vtype = (ch == 'p') ? V_PCHAR : V_CHAR;
- }
- }
- vfmt[j++] = ch;
- vfmt[j++] = '\0';
-
-/* Get a vector element. */
-#ifdef V64TYPE
-#define VPRINT(type, ind, args...) do { \
- switch (type) { \
- case V_CHAR: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vuchararg[ind]); \
- break; \
- case V_PCHAR: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, (void *)(uintptr_t)vval.vuchararg[ind]); \
- break; \
- case V_SHORT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vushortarg[ind]); \
- break; \
- case V_PSHORT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, (void *)(uintptr_t)vval.vushortarg[ind]); \
- break; \
- case V_INT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vuintarg[ind]); \
- break; \
- case V_PINT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, (void *)(uintptr_t)vval.vuintarg[ind]); \
- break; \
- case V_LONGLONG: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vulonglongarg[ind]); \
- break; \
- case V_PLONGLONG: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, (void *)(uintptr_t)vval.vulonglongarg[ind]); \
- break; \
- case V_FLOAT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vfloatarg[ind]); \
- break; \
- case V_DOUBLE: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vdoublearg[ind]); \
- break; \
- } \
- ret += vlen; \
- PRINT(vstr, vlen); \
- FLUSH(); \
- free(vstr); \
-} while (0)
-#else /* !V64TYPE */
-#define VPRINT(type, ind, args...) do { \
- switch (type) { \
- case V_CHAR: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vuchararg[ind]); \
- break; \
- case V_PCHAR: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, (void *)(uintptr_t)vval.vuchararg[ind]); \
- break; \
- case V_SHORT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vushortarg[ind]); \
- break; \
- case V_PSHORT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, (void *)(uintptr_t)vval.vushortarg[ind]); \
- break; \
- case V_INT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vuintarg[ind]); \
- break; \
- case V_PINT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, (void *)(uintptr_t)vval.vuintarg[ind]); \
- break; \
- case V_FLOAT: \
- vlen = asprintf_l(&vstr, loc, vfmt , ## args, vval.vfloatarg[ind]); \
- break; \
- } \
- ret += vlen; \
- PRINT(vstr, vlen); \
- FLUSH(); \
- free(vstr); \
-} while (0)
-#endif /* V64TYPE */
-
- /* Actually print. */
- if (vwidth == 0) {
- if (vprec == 0) {
- /* First element. */
- VPRINT(vtype, 0);
- for (i = 1; i < vcnt; i++) {
- /* Separator. */
- if(vsep)
- PRINT(&vsep, 1);
-
- /* Element. */
- VPRINT(vtype, i);
- }
- } else {
- /* First element. */
- VPRINT(vtype, 0, prec);
- for (i = 1; i < vcnt; i++) {
- /* Separator. */
- if(vsep)
- PRINT(&vsep, 1);
-
- /* Element. */
- VPRINT(vtype, i, prec);
- }
- }
- } else {
- if (vprec == 0) {
- /* First element. */
- VPRINT(vtype, 0, width);
- for (i = 1; i < vcnt; i++) {
- /* Separator. */
- if(vsep)
- PRINT(&vsep, 1);
-
- /* Element. */
- VPRINT(vtype, i, width);
- }
- } else {
- /* First element. */
- VPRINT(vtype, 0, width, prec);
- for (i = 1; i < vcnt; i++) {
- /* Separator. */
- if(vsep)
- PRINT(&vsep, 1);
-
- /* Element. */
- VPRINT(vtype, i, width, prec);
- }
- }
- }
-#undef VPRINT
-
- if (vfmt != vfmt_buf)
- free(vfmt);
-
- continue;
- }
-#endif /* VECTORS */
- /*
- * 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 (ret + prsize >= INT_MAX) {
- ret = EOF;
- errno = EOVERFLOW;
- 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, loc) < 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,decpt_len);
- PAD(-expt, zeroes);
- /* already handled initial 0's */
- prec += expt;
- } else {
- if (gs.grouping) {
- n = grouping_print(&gs, &io,
- cp, dtoaend, loc);
- if (n < 0)
- goto error;
- cp += n;
- } else {
- PRINTANDPAD(cp, dtoaend,
- expt, zeroes);
- cp += expt;
- }
- if (prec || flags & ALT)
- PRINT(decimal_point,decpt_len);
- }
- PRINTANDPAD(cp, dtoaend, prec, zeroes);
- } else { /* %[eE] or sufficiently long %[gG] */
- if (prec > 1 || flags & ALT) {
- PRINT(cp++, 1);
- PRINT(decimal_point, decpt_len);
- 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);
-#ifndef NO_FLOATING_POINT
- if (dtoaresult != NULL)
- freedtoa(dtoaresult);
-#endif
- free(convbuf);
- if (__sferror(fp))
- ret = EOF;
- if ((argtable != NULL) && (argtable != statargtable))
- free (argtable);
- return (ret < 0 || ret >= INT_MAX) ? -1 : (int)ret;
- /* NOTREACHED */
-}
-#pragma clang diagnostic pop