* 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.
* 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 1.65 2004/05/02 10:55:05 das Exp $");
+__FBSDID("$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.
#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/vm_region.h>
+
#include "libc_private.h"
#include "local.h"
#include "fvwrite.h"
+#include "printflocal.h"
-union arg {
- int intarg;
- u_int uintarg;
- long longarg;
- u_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;
- long long *plonglongarg;
- ptrdiff_t *pptrdiffarg;
- size_t *psizearg;
- intmax_t *pintmaxarg;
-#ifndef NO_FLOATING_POINT
- double doublearg;
- long double longdoublearg;
+static int __sprint(FILE *, locale_t, struct __suio *);
+#if 0
+static int __sbprintf(FILE *, locale_t, const char *, va_list) __printflike(3, 0);
#endif
- wint_t wintarg;
- wchar_t *pwchararg;
+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 */
};
/*
- * Type ids for argument type table.
+ * 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.
*/
-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
+grouping_init(struct grouping_state *gs, int ndigits, locale_t loc)
+{
+ struct lconv *locale;
-static int __sprint(FILE *, struct __suio *);
-static int __sbprintf(FILE *, const char *, va_list) __printflike(2, 0);
-static char *__ujtoa(uintmax_t, char *, int, int, const char *, int, char,
- const char *);
-static char *__ultoa(u_long, char *, int, int, const char *, int, char,
- const char *);
-static char *__wcsconv(wchar_t *, int);
-static void __find_arguments(const char *, va_list, union arg **);
-static void __grow_type_table(int, enum typeid **, int *);
+ 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, struct __suio *uio)
+__sprint(FILE *fp, locale_t loc __unused, struct __suio *uio)
{
int err;
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, const char *fmt, va_list ap)
+__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._extra = fp->_extra;
+ fake._orientation = fp->_orientation;
+ fake._mbstate = fp->_mbstate;
/* set up the buffer */
fake._bf._base = fake._p = buf;
fake._lbfsize = 0; /* not actually used, but Just In Case */
/* do the work, then copy any error status */
- ret = __vfprintf(&fake, fmt, ap);
+ ret = __vfprintf(&fake, loc, fmt, ap);
if (ret >= 0 && __fflush(&fake))
ret = EOF;
if (fake._flags & __SERR)
fp->_flags |= __SERR;
return (ret);
}
-
-/*
- * 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) ((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 char *
-__ultoa(u_long val, char *endp, int base, int octzero, const char *xdigs,
- int needgrp, char thousep, const char *grp)
-{
- char *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[val & 15];
- val >>= 4;
- } while (val);
- break;
-
- default: /* oops */
- abort();
- }
- return (cp);
-}
-
-/* Identical to __ultoa, but for intmax_t. */
-static char *
-__ujtoa(uintmax_t val, char *endp, int base, int octzero, const char *xdigs,
- int needgrp, char thousep, const char *grp)
-{
- char *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[val & 15];
- val >>= 4;
- } while (val);
- break;
-
- default:
- abort();
- }
- return (cp);
-}
+#endif
/*
* Convert a wide character string argument for the %ls format to a multibyte
- * 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 wide char. string ends in a null character.
+ * 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)
+__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, *mbp;
+ char *convbuf;
size_t clen, nbytes;
- /*
- * Determine the number of bytes to output and allocate space for
- * the output.
- */
- if (prec >= 0) {
- nbytes = 0;
+ /* Allocate space for the maximum number of bytes we could output. */
+ if (prec < 0) {
p = wcsarg;
mbs = initial;
- for (;;) {
- clen = wcrtomb(buf, *p++, &mbs);
- if (clen == 0 || clen == (size_t)-1 ||
- nbytes + clen > prec)
- break;
- nbytes += clen;
- }
- } else {
- p = wcsarg;
- mbs = initial;
- nbytes = wcsrtombs(NULL, (const wchar_t **)&p, 0, &mbs);
+ 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 with the multibyte representations of as
- * many wide characters as will fit.
- */
- mbp = convbuf;
+ /* Fill the output buffer. */
p = wcsarg;
mbs = initial;
- while (mbp - convbuf < nbytes) {
- clen = wcrtomb(mbp, *p++, &mbs);
- if (clen == 0 || clen == (size_t)-1)
- break;
- mbp += clen;
- }
- if (clen == (size_t)-1) {
+ if ((nbytes = wcsrtombs_l(convbuf, (const wchar_t **)&p,
+ nbytes, &mbs, loc)) == (size_t)-1) {
free(convbuf);
return (NULL);
}
- *mbp = '\0';
-
+ convbuf[nbytes] = '\0';
return (convbuf);
}
* MT-safe version
*/
int
-vfprintf(FILE * __restrict fp, const char * __restrict fmt0, va_list ap)
+vfprintf_l(FILE * __restrict fp, locale_t loc, const char * __restrict fmt0, va_list ap)
{
int ret;
FLOCKFILE(fp);
- ret = __vfprintf(fp, fmt0, ap);
+ ret = __xvprintf(XPRINTF_PLAIN, NULL, fp, loc, fmt0, ap);
FUNLOCKFILE(fp);
return (ret);
}
-#ifndef NO_FLOATING_POINT
-
-#define dtoa __dtoa
-#define freedtoa __freedtoa
-
-#include <float.h>
-#include <math.h>
-#include "floatio.h"
-#include "gdtoa.h"
-
-#define DEFPREC 6
+int
+vfprintf(FILE * __restrict fp, const char * __restrict fmt0, va_list ap)
-static int exponent(char *, int, int);
+{
+ int ret;
-#endif /* !NO_FLOATING_POINT */
+ 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. 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.
+ * conversions, among other things. We need enough space to
+ * write a uintmax_t in octal (plus one byte).
*/
-#define BUF 100
-
-#define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */
+#if UINTMAX_MAX <= UINT64_MAX
+#define BUF 32
+#else
+#error "BUF must be large enough to format a uintmax_t"
+#endif
-/*
- * 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 /* long long 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 */
+__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
*/
-int
-__vfprintf(FILE *fp, const char *fmt0, va_list ap)
+__private_extern__ int
+__vfprintf(FILE *fp, locale_t loc, const char *fmt0, va_list ap)
{
char *fmt; /* format string */
int ch; /* character from fmt */
- int n, n2; /* handy integer (short term usage) */
+ ssize_t n, n2; /* handy integer (short term usage) */
char *cp; /* handy char pointer (short term usage) */
- struct __siov *iovp; /* for PRINT macro */
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 */
+ 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) */
- char thousands_sep; /* locale specific thousands separator */
- const char *grouping; /* locale specific numeric grouping rules */
+ 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
* 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;
char expchar; /* exponent character: [eEpP\0] */
char *dtoaend; /* pointer to end of converted digits */
int expsize; /* character count for expstr */
- int lead; /* sig figs before decimal or group sep */
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 */
- int nseps; /* number of group separators with ' */
- int nrepeats; /* number of repeats of the last group */
+#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 */
- int realsz; /* field size expanded by dprec, sign, etc */
- int size; /* size of converted field or string */
- int prsize; /* max size of printed field */
+ 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 */
-#define NIOV 8
- struct __suio uio; /* output information: summary */
- struct __siov iov[NIOV];/* ... and individual io vectors */
+ 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 */
va_list orgap; /* original argument pointer */
char *convbuf; /* wide to multibyte 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 char blanks[PADSIZE] =
- {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
- static char 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, and PAD uses `n'.
- */
+ /* BEWARE, these `goto error' on error. */
#define PRINT(ptr, len) { \
- iovp->iov_base = (ptr); \
- iovp->iov_len = (len); \
- uio.uio_resid += (len); \
- iovp++; \
- if (++uio.uio_iovcnt >= NIOV) { \
- if (__sprint(fp, &uio)) \
- goto error; \
- iovp = iov; \
- } \
+ if (io_print(&io, (ptr), (len), loc)) \
+ goto error; \
}
#define PAD(howmany, with) { \
- if ((n = (howmany)) > 0) { \
- while (n > PADSIZE) { \
- PRINT(with, PADSIZE); \
- n -= PADSIZE; \
- } \
- PRINT(with, n); \
- } \
+ 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 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(0)
#define FLUSH() { \
- if (uio.uio_resid && __sprint(fp, &uio)) \
+ if (io_flush(&io, loc)) \
goto error; \
- uio.uio_iovcnt = 0; \
- iovp = iov; \
}
/*
#define INTMAX_SIZE (INTMAXT|SIZET|PTRDIFFT|LLONGINT)
#define SJARG() \
(flags&INTMAXT ? GETARG(intmax_t) : \
- flags&SIZET ? (intmax_t)GETARG(size_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) : \
+ flags&PTRDIFFT ? (uintmax_t)(unsigned long)GETARG(ptrdiff_t) : \
(uintmax_t)GETARG(unsigned long long))
/*
int hold = nextarg; \
if (argtable == NULL) { \
argtable = statargtable; \
- __find_arguments (fmt0, orgap, &argtable); \
+ if (__find_arguments (fmt0, orgap, &argtable)) { \
+ ret = EOF; \
+ goto error; \
+ } \
} \
nextarg = n2; \
val = GETARG (int); \
val = GETARG (int); \
}
-
- thousands_sep = '\0';
- grouping = NULL;
- convbuf = NULL;
-#ifndef NO_FLOATING_POINT
- dtoaresult = NULL;
- decimal_point = localeconv()->decimal_point;
-#endif
+ /* The following has been moved to __v2printf() */
+#if 0
/* sorry, fprintf(read_only_file, "") returns EOF, not 0 */
- if (cantwrite(fp))
+ if (prepwrite(fp) != 0) {
+ errno = EBADF;
return (EOF);
+ }
+ ORIENT(fp, -1);
+#endif
- /* optimise fprintf(stderr) (and other unbuffered Unix files) */
- if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
- fp->_file >= 0)
- return (__sbprintf(fp, fmt0, ap));
-
+ convbuf = NULL;
fmt = (char *)fmt0;
argtable = NULL;
nextarg = 1;
va_copy(orgap, ap);
- uio.uio_iov = iovp = iov;
- uio.uio_resid = 0;
- uio.uio_iovcnt = 0;
+ 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 (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++)
/* void */;
if ((n = fmt - cp) != 0) {
- if ((unsigned)ret + n > INT_MAX) {
+ if (ret + n >= INT_MAX) {
ret = EOF;
+ errno = EOVERFLOW;
goto error;
}
PRINT(cp, 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 '#':
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
goto rflag;
case '\'':
flags |= GROUPING;
- thousands_sep = *(localeconv()->thousands_sep);
- grouping = localeconv()->grouping;
goto rflag;
case '.':
if ((ch = *fmt++) == '*') {
nextarg = n;
if (argtable == NULL) {
argtable = statargtable;
- __find_arguments (fmt0, orgap,
- &argtable);
+ if (__find_arguments (fmt0, orgap,
+ &argtable)) {
+ ret = EOF;
+ goto error;
+ }
}
goto rflag;
}
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(cp = buf,
- (wchar_t)GETARG(wint_t), &mbs);
+ mbseqlen = wcrtomb_l(cp = buf,
+ (wchar_t)GETARG(wint_t), &mbs, loc);
if (mbseqlen == (size_t)-1) {
fp->_flags |= __SERR;
goto error;
/*FALLTHROUGH*/
case 'd':
case 'i':
+#ifdef VECTORS
+ if (flags & VECTOR)
+ break;
+#endif /* VECTORS */
if (flags & INTMAX_SIZE) {
ujval = SJARG();
if ((intmax_t)ujval < 0) {
#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;
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;
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;
} else
cp = (ch >= 'a') ? "inf" : "INF";
size = 3;
+ flags &= ~ZEROPAD;
break;
}
flags |= FPT;
expsize = exponent(expstr, expt - 1, expchar);
size = expsize + prec;
if (prec > 1 || flags & ALT)
- ++size;
+ size += decpt_len;
} else {
/* space for digits before decimal point */
if (expt > 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;
+ 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)
- *GETARG(long long *) = ret;
+ *(long long *)ptr = ret;
else if (flags & SIZET)
- *GETARG(ssize_t *) = (ssize_t)ret;
+ *(ssize_t *)ptr = (ssize_t)ret;
else if (flags & PTRDIFFT)
- *GETARG(ptrdiff_t *) = ret;
+ *(ptrdiff_t *)ptr = ret;
else if (flags & INTMAXT)
- *GETARG(intmax_t *) = ret;
+ *(intmax_t *)ptr = ret;
else if (flags & LONGINT)
- *GETARG(long *) = ret;
+ *(long *)ptr = ret;
else if (flags & SHORTINT)
- *GETARG(short *) = ret;
+ *(short *)ptr = ret;
else if (flags & CHARINT)
- *GETARG(signed char *) = ret;
+ *(signed char *)ptr = ret;
else
- *GETARG(int *) = ret;
+ *(int *)ptr = 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
* defined manner.''
* -- ANSI X3J11
*/
+#ifdef VECTORS
+ if (flags & VECTOR)
+ break;
+#endif /* VECTORS */
ujval = (uintmax_t)(uintptr_t)GETARG(void *);
base = 16;
xdigs = xdigs_lower;
if (flags & LONGINT) {
wchar_t *wcp;
- if (convbuf != NULL)
- free(convbuf);
- if ((wcp = GETARG(wchar_t *)) == NULL)
+ free(convbuf);
+ if ((wcp = GETARG(wchar_t *)) == NULL) {
+ convbuf = NULL;
cp = "(null)";
- else {
- convbuf = __wcsconv(wcp, prec);
+ } else {
+ convbuf = __wcsconv(wcp, prec, loc);
if (convbuf == NULL) {
fp->_flags |= __SERR;
goto error;
}
} else if ((cp = GETARG(char *)) == NULL)
cp = "(null)";
- if (prec >= 0) {
- /*
- * can't use strlen; can only look for the
- * NUL in the first `prec' characters, and
- * strlen() will go further.
- */
- char *p = memchr(cp, 0, (size_t)prec);
-
- if (p != NULL) {
- size = p - cp;
- if (size > prec)
- size = prec;
- } else
- size = prec;
- } else
- size = strlen(cp);
+ {
+ size_t cp_len = (prec >= 0) ? strnlen(cp, prec) : strlen(cp);
+ if (cp_len < INT_MAX) {
+ size = cp_len;
+ } else {
+ ret = EOF;
+ goto error;
+ }
+ }
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
case 'x':
xdigs = xdigs_lower;
hex:
+#ifdef VECTORS
+ if (flags & VECTOR)
+ break;
+#endif /* VECTORS */
if (flags & INTMAX_SIZE)
ujval = UJARG();
else
* ``... 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)
+ if (ujval != 0 || prec != 0 ||
+ (flags & ALT && base == 8))
cp = __ujtoa(ujval, cp, base,
- flags & ALT, xdigs,
- flags & GROUPING, thousands_sep,
- grouping);
+ flags & ALT, xdigs);
} else {
- if (ulval != 0 || prec != 0)
+ if (ulval != 0 || prec != 0 ||
+ (flags & ALT && base == 8))
cp = __ultoa(ulval, cp, base,
- flags & ALT, xdigs,
- flags & GROUPING, thousands_sep,
- grouping);
+ flags & ALT, xdigs);
}
size = buf + BUF - cp;
if (size > BUF) /* should never happen */
- abort();
+ 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;
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
realsz += 2;
prsize = width > realsz ? width : realsz;
- if ((unsigned)ret + prsize > INT_MAX) {
+ if (ret + prsize >= INT_MAX) {
ret = EOF;
+ errno = EOVERFLOW;
goto error;
}
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);
+#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, 1);
+ PRINT(decimal_point,decpt_len);
PAD(-expt, zeroes);
/* already handled initial 0's */
prec += expt;
} else {
- PRINTANDPAD(cp, dtoaend, lead, zeroes);
- cp += lead;
- if (grouping) {
- while (nseps>0 || nrepeats>0) {
- if (nrepeats > 0)
- nrepeats--;
- else {
- grouping--;
- nseps--;
- }
- PRINT(&thousands_sep,
- 1);
- PRINTANDPAD(cp,dtoaend,
- *grouping, zeroes);
- cp += *grouping;
- }
- if (cp > dtoaend)
- cp = dtoaend;
+ 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,1);
+ PRINT(decimal_point,decpt_len);
}
PRINTANDPAD(cp, dtoaend, 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++, 1);
+ PRINT(decimal_point, decpt_len);
PRINT(cp, ndig-1);
PAD(prec - ndig, zeroes);
} else /* XeYYY */
PRINT(expstr, expsize);
}
}
-#else
- PRINT(cp, size);
#endif
/* left-adjusting padding (always blank) */
if (flags & LADJUST)
done:
FLUSH();
error:
+ va_end(orgap);
#ifndef NO_FLOATING_POINT
if (dtoaresult != NULL)
freedtoa(dtoaresult);
#endif
- if (convbuf != NULL)
- free(convbuf);
+ free(convbuf);
if (__sferror(fp))
ret = EOF;
if ((argtable != NULL) && (argtable != statargtable))
free (argtable);
- return (ret);
+ return (ret < 0 || ret >= INT_MAX) ? -1 : (int)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 char *fmt0, va_list ap, union arg **argtable)
-{
- char *fmt; /* format string */
- int ch; /* character from fmt */
- int n, n2; /* handy integer (short term usage) */
- char *cp; /* handy char pointer (short term usage) */
- int flags; /* flags as above */
- int width; /* width from format (%8d), or 0 */
- 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) \
- ((nextarg >= tablesize) ? \
- __grow_type_table(nextarg, &typetable, &tablesize) : 0, \
- (nextarg > tablemax) ? tablemax = nextarg : 0, \
- typetable[nextarg++] = type)
-
-#define ADDSARG() \
- ((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() \
- ((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 = (char *)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;
- width = 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;
- }
- 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)
- 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, long long);
- break;
- case T_U_LLONG:
- (*argtable) [n].ulonglongarg = va_arg (ap, unsigned long long);
- break;
- case TP_LLONG:
- (*argtable) [n].plonglongarg = va_arg (ap, long long *);
- 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, ssize_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 = reallocf(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
-
-static int
-exponent(char *p0, int exp, int fmtch)
-{
- char *p, *t;
- char expbuf[MAXEXPDIG];
-
- p = p0;
- *p++ = fmtch;
- if (exp < 0) {
- exp = -exp;
- *p++ = '-';
- }
- else
- *p++ = '+';
- t = expbuf + MAXEXPDIG;
- if (exp > 9) {
- do {
- *--t = to_char(exp % 10);
- } while ((exp /= 10) > 9);
- *--t = to_char(exp);
- 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(exp);
- }
- return (p - p0);
-}
-#endif /* !NO_FLOATING_POINT */
+#pragma clang diagnostic pop
projects / apple / libc.git / blobdiff