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authormatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-04-27 02:57:10 +0000
committermatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-04-27 02:57:10 +0000
commite5ce6155af93a5cdaaef02ad44dfc143d0bafd9c (patch)
tree5a11c01d65cc52ca45f37c2f71cafb7e6cd4b354
parente975828471542a8fa3db08ecb641eca2b92e3771 (diff)
*** empty log message ***
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_3@446 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--missing/snprintf.c1197
1 files changed, 0 insertions, 1197 deletions
diff --git a/missing/snprintf.c b/missing/snprintf.c
deleted file mode 100644
index 750372e6f7a..00000000000
--- a/missing/snprintf.c
+++ /dev/null
@@ -1,1197 +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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/* SNPRINTF.C
- * fjc 7-31-97 Modified by Mib Software to be a standalone snprintf.c module.
- * http://www.mibsoftware.com
- * Mib Software does not warrant this software any differently than the
- * University of California, Berkeley as described above. All warranties
- * are disclaimed. Use this software at your own risk.
- *
- * All code referencing FILE * functions was eliminated, since it could
- * never be called. All header files and necessary files are collapsed
- * into one file, internal functions are declared static. This should
- * allow inclusion into libraries with less chance of namespace collisions.
- *
- * snprintf should be the only externally visible item.
- *
- * As of 7-31-97 FLOATING_POINT is NOT provided. The code is somewhat
- * non-portable, so it is disabled.
- */
-
-/* Define FLOATING_POINT to get floating point. */
-/*
-#define FLOATING_POINT
-*/
-
-#include <sys/types.h>
-
-#undef __P
-#if defined(__STDC__)
-# include <stdarg.h>
-# if !defined(__P)
-# define __P(x) x
-# endif
-#else
-# define __P(x) ()
-# if !defined(const)
-# define const
-# endif
-# include <varargs.h>
-#endif
-#ifndef _BSD_VA_LIST_
-#define _BSD_VA_LIST_ va_list
-#endif
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# ifndef LONG_MAX
-# ifdef HAVE_LIMITS_H
-# include <limits.h>
-# else
- /* assuming 32bit(2's compliment) long */
-# define LONG_MAX 2147483647
-# endif
-# endif
-#endif
-
-#if defined(__hpux) && !defined(__GNUC__)
-#define const
-#endif
-
-#if defined(sgi)
-#undef __const
-#define __const
-#endif /* People who don't like const sys_error */
-
-
-#ifndef NULL
-#define NULL 0
-#endif
-
-/*
- * This is fairly grotesque, but pure ANSI code must not inspect the
- * innards of an fpos_t anyway. The library internally uses off_t,
- * which we assume is exactly as big as eight chars. (When we switch
- * to gcc 2.4 we will use __attribute__ here.)
- *
- * WARNING: the alignment constraints on an off_t and the struct below
- * differ on (e.g.) the SPARC. Hence, the placement of an fpos_t object
- * in a structure will change if fpos_t's are not aligned on 8-byte
- * boundaries. THIS IS A CROCK, but for now there is no way around it.
- */
-#if !defined(_ANSI_SOURCE) && !defined(__STRICT_ANSI__)
-#if !defined(__hpux)
-typedef off_t fpos_t;
-#endif
-#else
-typedef struct __sfpos {
- char _pos[8];
-} fpos_t;
-#endif
-
-/*
- * NB: to fit things in six character monocase externals, the stdio
- * code uses the prefix `__s' for stdio objects, typically followed
- * by a three-character attempt at a mnemonic.
- */
-
-/* stdio buffers */
-struct __sbuf {
- unsigned char *_base;
- int _size;
-};
-
-
-/*
- * stdio state variables.
- *
- * The following always hold:
- *
- * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
- * _lbfsize is -_bf._size, else _lbfsize is 0
- * if _flags&__SRD, _w is 0
- * if _flags&__SWR, _r is 0
- *
- * This ensures that the getc and putc macros (or inline functions) never
- * try to write or read from a file that is in `read' or `write' mode.
- * (Moreover, they can, and do, automatically switch from read mode to
- * write mode, and back, on "r+" and "w+" files.)
- *
- * _lbfsize is used only to make the inline line-buffered output stream
- * code as compact as possible.
- *
- * _ub, _up, and _ur are used when ungetc() pushes back more characters
- * than fit in the current _bf, or when ungetc() pushes back a character
- * that does not match the previous one in _bf. When this happens,
- * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
- * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
- *
- * NB: see WARNING above before changing the layout of this structure!
- */
-typedef struct __sFILE {
- unsigned char *_p; /* current position in (some) buffer */
- int _r; /* read space left for getc() */
- int _w; /* write space left for putc() */
- short _flags; /* flags, below; this FILE is free if 0 */
- short _file; /* fileno, if Unix descriptor, else -1 */
- struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
- int _lbfsize; /* 0 or -_bf._size, for inline putc */
-
- /* operations */
- void *_cookie; /* cookie passed to io functions */
- int (*_close) __P((void *));
- int (*_read) __P((void *, char *, int));
- fpos_t (*_seek) __P((void *, fpos_t, int));
- int (*_write) __P((void *, const char *, int));
-
- /* separate buffer for long sequences of ungetc() */
- struct __sbuf _ub; /* ungetc buffer */
- unsigned char *_up; /* saved _p when _p is doing ungetc data */
- int _ur; /* saved _r when _r is counting ungetc data */
-
- /* tricks to meet minimum requirements even when malloc() fails */
- unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
- unsigned char _nbuf[1]; /* guarantee a getc() buffer */
-
- /* separate buffer for fgetln() when line crosses buffer boundary */
- struct __sbuf _lb; /* buffer for fgetln() */
-
- /* Unix stdio files get aligned to block boundaries on fseek() */
- int _blksize; /* stat.st_blksize (may be != _bf._size) */
- fpos_t _offset; /* current lseek offset (see WARNING) */
-} FILE;
-
-
-#define __SLBF 0x0001 /* line buffered */
-#define __SNBF 0x0002 /* unbuffered */
-#define __SRD 0x0004 /* OK to read */
-#define __SWR 0x0008 /* OK to write */
- /* RD and WR are never simultaneously asserted */
-#define __SRW 0x0010 /* open for reading & writing */
-#define __SEOF 0x0020 /* found EOF */
-#define __SERR 0x0040 /* found error */
-#define __SMBF 0x0080 /* _buf is from malloc */
-#define __SAPP 0x0100 /* fdopen()ed in append mode */
-#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
-#define __SOPT 0x0400 /* do fseek() optimisation */
-#define __SNPT 0x0800 /* do not do fseek() optimisation */
-#define __SOFF 0x1000 /* set iff _offset is in fact correct */
-#define __SMOD 0x2000 /* true => fgetln modified _p text */
-
-
-#define EOF (-1)
-
-
-/*
- * The __sfoo macros are here so that we can
- * define function versions in the C library.
- */
-#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
-#if defined(__GNUC__) && defined(__STDC__)
-static __inline int __sputc(int _c, FILE *_p) {
- if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
- return (*_p->_p++ = _c);
- else
- return (__swbuf(_c, _p));
-}
-#else
-/*
- * This has been tuned to generate reasonable code on the vax using pcc.
- */
-#define __sputc(c, p) \
- (--(p)->_w < 0 ? \
- (p)->_w >= (p)->_lbfsize ? \
- (*(p)->_p = (c)), *(p)->_p != '\n' ? \
- (int)*(p)->_p++ : \
- __swbuf('\n', p) : \
- __swbuf((int)(c), p) : \
- (*(p)->_p = (c), (int)*(p)->_p++))
-#endif
-
-#define __sfeof(p) (((p)->_flags & __SEOF) != 0)
-#define __sferror(p) (((p)->_flags & __SERR) != 0)
-#define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
-#define __sfileno(p) ((p)->_file)
-
-#define feof(p) __sfeof(p)
-#define ferror(p) __sferror(p)
-#define clearerr(p) __sclearerr(p)
-
-#ifndef _ANSI_SOURCE
-#define fileno(p) __sfileno(p)
-#endif
-
-#ifndef lint
-#define getc(fp) __sgetc(fp)
-#define putc(x, fp) __sputc(x, fp)
-#endif /* lint */
-
-
-#if defined(__hpux) && !defined(__GNUC__)
-#include <string.h>
-#endif
-
-/*
- * I/O descriptors for __sfvwrite().
- */
-struct __siov {
- void *iov_base;
- size_t iov_len;
-};
-struct __suio {
- struct __siov *uio_iov;
- int uio_iovcnt;
- int uio_resid;
-};
-
-/*
- * Write some memory regions. Return zero on success, EOF on error.
- *
- * This routine is large and unsightly, but most of the ugliness due
- * to the three different kinds of output buffering is handled here.
- */
-static BSD__sfvwrite(fp, uio)
- register FILE *fp;
- register struct __suio *uio;
-{
- register size_t len;
- register char *p;
- register struct __siov *iov;
- register int w, s;
- char *nl;
- int nlknown, nldist;
-
- if ((len = uio->uio_resid) == 0)
- return (0);
-#ifndef __hpux
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
-#endif
-#define COPY(n) (void)memcpy((void *)fp->_p, (void *)p, (size_t)(n))
-
- iov = uio->uio_iov;
- p = iov->iov_base;
- len = iov->iov_len;
- iov++;
-#define GETIOV(extra_work) \
- while (len == 0) { \
- extra_work; \
- p = iov->iov_base; \
- len = iov->iov_len; \
- iov++; \
- }
- if (fp->_flags & __SNBF) {
- /* fjc 7-31-97 Will never happen. We are working with
- strings only
- */
- } else if ((fp->_flags & __SLBF) == 0) {
- /*
- * Fully buffered: fill partially full buffer, if any,
- * and then flush. If there is no partial buffer, write
- * one _bf._size byte chunk directly (without copying).
- *
- * String output is a special case: write as many bytes
- * as fit, but pretend we wrote everything. This makes
- * snprintf() return the number of bytes needed, rather
- * than the number used, and avoids its write function
- * (so that the write function can be invalid).
- */
- do {
- GETIOV(;);
- w = fp->_w;
- if (fp->_flags & __SSTR) {
- if (len < w)
- w = len;
- COPY(w); /* copy MIN(fp->_w,len), */
- fp->_w -= w;
- fp->_p += w;
- w = len; /* but pretend copied all */
- } else {
- /* fjc 7-31-97 Will never happen. We are working with
- strings only
- */
- }
- p += w;
- len -= w;
- } while ((uio->uio_resid -= w) != 0);
- } else {
- /* fjc 7-31-97 Will never happen. We are working with
- strings only
- */
- }
- return (0);
-
-err:
- fp->_flags |= __SERR;
- return (EOF);
-}
-
-/*
- * Actual printf innards.
- *
- * This code is large and complicated...
- */
-
-#include <sys/types.h>
-#define u_long unsigned long
-#define u_short unsigned short
-#define u_int unsigned int
-
-#if !defined(__CYGWIN32__) && defined(__hpux) && !defined(__GNUC__)
-#include <stdlib.h>
-#endif
-#if defined(__hpux) && !defined(__GNUC__)
-#include <string.h>
-#endif
-
-/*
- * Flush out all the vectors defined by the given uio,
- * then reset it so that it can be reused.
- */
-static int
-BSD__sprint(fp, uio)
- FILE *fp;
- register struct __suio *uio;
-{
- register int err;
-
- if (uio->uio_resid == 0) {
- uio->uio_iovcnt = 0;
- return (0);
- }
- err = BSD__sfvwrite(fp, uio);
- uio->uio_resid = 0;
- uio->uio_iovcnt = 0;
- return (err);
-}
-
-
-/*
- * 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
-BSD__sbprintf(fp, fmt, ap)
- register FILE *fp;
- const char *fmt;
- va_list ap;
-{
-/* We don't support files. */
- return 0;
-}
-
-
-/*
- * 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 *
-BSD__ultoa(val, endp, base, octzero, xdigs)
- register u_long val;
- char *endp;
- int base, octzero;
- char *xdigs;
-{
- register char *cp = endp;
- register long sval;
-
- /*
- * 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);
- }
- /*
- * 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);
- sval = val / 10;
- } else
- sval = val;
- do {
- *--cp = to_char(sval % 10);
- 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();
- */
- break; /* fjc 7-31-97. Don't reference abort() here */
- }
- return (cp);
-}
-
-#ifdef FLOATING_POINT
-#include <math.h>
-#include "floatio.h"
-
-#define BUF (MAXEXP+MAXFRACT+1) /* + decimal point */
-#define DEFPREC 6
-
-static char *cvt __P((double, int, int, char *, int *, int, int *));
-static int exponent __P((char *, int, int));
-
-#else /* no FLOATING_POINT */
-
-#define BUF 68
-
-#endif /* FLOATING_POINT */
-
-
-/*
- * Flags used during conversion.
- */
-#define ALT 0x001 /* alternate form */
-#define HEXPREFIX 0x002 /* add 0x or 0X prefix */
-#define LADJUST 0x004 /* left adjustment */
-#define LONGDBL 0x008 /* long double; unimplemented */
-#define LONGINT 0x010 /* long integer */
-
-#ifdef _HAVE_SANE_QUAD_
-#define QUADINT 0x020 /* quad integer */
-#endif /* _HAVE_SANE_QUAD_ */
-
-#define SHORTINT 0x040 /* short integer */
-#define ZEROPAD 0x080 /* zero (as opposed to blank) pad */
-#define FPT 0x100 /* Floating point number */
-static int
-BSD_vfprintf(fp, fmt0, ap)
- FILE *fp;
- const char *fmt0;
- va_list ap;
-{
- register char *fmt; /* format string */
- register int ch; /* character from fmt */
- register int n; /* handy integer (short term usage) */
- register char *cp; /* handy char pointer (short term usage) */
- register struct __siov *iovp;/* for PRINT macro */
- register int flags; /* flags as above */
- int ret; /* return value accumulator */
- int width; /* width from format (%8d), or 0 */
- int prec; /* precision from format (%.3d), or -1 */
- char sign; /* sign prefix (' ', '+', '-', or \0) */
-#ifdef FLOATING_POINT
- char softsign; /* temporary negative sign for floats */
- double _double; /* double precision arguments %[eEfgG] */
- int expt; /* integer value of exponent */
- int expsize; /* character count for expstr */
- int ndig; /* actual number of digits returned by cvt */
- char expstr[7]; /* buffer for exponent string */
-#endif
- u_long ulval; /* integer arguments %[diouxX] */
-#ifdef _HAVE_SANE_QUAD_
- u_quad_t uqval; /* %q integers */
-#endif /* _HAVE_SANE_QUAD_ */
- int base; /* base for [diouxX] conversion */
- int dprec; /* a copy of prec if [diouxX], 0 otherwise */
- int fieldsz; /* field size expanded by sign, etc */
- int realsz; /* field size expanded by dprec */
- int size; /* size of converted field or string */
- char *xdigs; /* digits for [xX] conversion */
-#define NIOV 8
- struct __suio uio; /* output information: summary */
- struct __siov iov[NIOV];/* ... and individual io vectors */
- char buf[BUF]; /* space for %c, %[diouxX], %[eEfgG] */
- char ox[2]; /* space for 0x hex-prefix */
-
- /*
- * 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'};
-
- /*
- * BEWARE, these `goto error' on error, and PAD uses `n'.
- */
-#define PRINT(ptr, len) { \
- iovp->iov_base = (ptr); \
- iovp->iov_len = (len); \
- uio.uio_resid += (len); \
- iovp++; \
- if (++uio.uio_iovcnt >= NIOV) { \
- if (BSD__sprint(fp, &uio)) \
- goto error; \
- iovp = iov; \
- } \
-}
-#define PAD(howmany, with) { \
- if ((n = (howmany)) > 0) { \
- while (n > PADSIZE) { \
- PRINT(with, PADSIZE); \
- n -= PADSIZE; \
- } \
- PRINT(with, n); \
- } \
-}
-#define FLUSH() { \
- if (uio.uio_resid && BSD__sprint(fp, &uio)) \
- goto error; \
- uio.uio_iovcnt = 0; \
- iovp = iov; \
-}
-
- /*
- * To extend shorts properly, we need both signed and unsigned
- * argument extraction methods.
- */
-#define SARG() \
- (flags&LONGINT ? va_arg(ap, long) : \
- flags&SHORTINT ? (long)(short)va_arg(ap, int) : \
- (long)va_arg(ap, int))
-#define UARG() \
- (flags&LONGINT ? va_arg(ap, u_long) : \
- flags&SHORTINT ? (u_long)(u_short)va_arg(ap, int) : \
- (u_long)va_arg(ap, u_int))
-
- /* optimise fprintf(stderr) (and other unbuffered Unix files) */
- if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
- fp->_file >= 0)
- return (BSD__sbprintf(fp, fmt0, ap));
-
- fmt = (char *)fmt0;
- uio.uio_iov = iovp = iov;
- uio.uio_resid = 0;
- uio.uio_iovcnt = 0;
- ret = 0;
-
- /*
- * Scan the format for conversions (`%' character).
- */
- for (;;) {
- for (cp = fmt; (ch = *fmt) != '\0' && ch != '%'; fmt++)
- /* void */;
- if ((n = fmt - cp) != 0) {
- PRINT(cp, n);
- ret += n;
- }
- if (ch == '\0')
- goto done;
- fmt++; /* skip over '%' */
-
- flags = 0;
- dprec = 0;
- width = 0;
- prec = -1;
- sign = '\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.
- */
- if ((width = va_arg(ap, int)) >= 0)
- goto rflag;
- width = -width;
- /* FALLTHROUGH */
- case '-':
- flags |= LADJUST;
- goto rflag;
- case '+':
- sign = '+';
- goto rflag;
- case '.':
- if ((ch = *fmt++) == '*') {
- n = va_arg(ap, int);
- prec = n < 0 ? -1 : n;
- goto rflag;
- }
- n = 0;
- while (is_digit(ch)) {
- n = 10 * n + to_digit(ch);
- ch = *fmt++;
- }
- prec = n < 0 ? -1 : n;
- 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));
- width = n;
- goto reswitch;
-#ifdef FLOATING_POINT
- case 'L':
- flags |= LONGDBL;
- goto rflag;
-#endif
- case 'h':
- flags |= SHORTINT;
- goto rflag;
- case 'l':
- flags |= LONGINT;
- goto rflag;
-#ifdef _HAVE_SANE_QUAD_
- case 'q':
- flags |= QUADINT;
- goto rflag;
-#endif /* _HAVE_SANE_QUAD_ */
- case 'c':
- *(cp = buf) = va_arg(ap, int);
- size = 1;
- sign = '\0';
- break;
- case 'D':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'd':
- case 'i':
-#ifdef _HAVE_SANE_QUAD_
- if (flags & QUADINT) {
- uqval = va_arg(ap, quad_t);
- if ((quad_t)uqval < 0) {
- uqval = -uqval;
- sign = '-';
- }
- } else {
-#else /* _HAVE_SANE_QUAD_ */
- {
-#endif /* _HAVE_SANE_QUAD_ */
- ulval = SARG();
- if ((long)ulval < 0) {
- ulval = -ulval;
- sign = '-';
- }
- }
- base = 10;
- goto number;
-#ifdef FLOATING_POINT
- case 'e': /* anomalous precision */
- case 'E':
- prec = (prec == -1) ?
- DEFPREC + 1 : prec + 1;
- /* FALLTHROUGH */
- goto fp_begin;
- case 'f': /* always print trailing zeroes */
- if (prec != 0)
- flags |= ALT;
- case 'g':
- case 'G':
- if (prec == -1)
- prec = DEFPREC;
-fp_begin: _double = va_arg(ap, double);
- /* do this before tricky precision changes */
- if (isinf(_double)) {
- if (_double < 0)
- sign = '-';
- cp = "Inf";
- size = 3;
- break;
- }
- if (isnan(_double)) {
- cp = "NaN";
- size = 3;
- break;
- }
- flags |= FPT;
- cp = cvt(_double, prec, flags, &softsign,
- &expt, ch, &ndig);
- if (ch == 'g' || ch == 'G') {
- if (expt <= -4 || expt > prec)
- ch = (ch == 'g') ? 'e' : 'E';
- else
- ch = 'g';
- }
- if (ch <= 'e') { /* 'e' or 'E' fmt */
- --expt;
- expsize = exponent(expstr, expt, ch);
- size = expsize + ndig;
- if (ndig > 1 || flags & ALT)
- ++size;
- } else if (ch == 'f') { /* f fmt */
- if (expt > 0) {
- size = expt;
- if (prec || flags & ALT)
- size += prec + 1;
- } else /* "0.X" */
- size = prec + 2;
- } else if (expt >= ndig) { /* fixed g fmt */
- size = expt;
- if (flags & ALT)
- ++size;
- } else
- size = ndig + (expt > 0 ?
- 1 : 2 - expt);
-
- if (softsign)
- sign = '-';
- break;
-#endif /* FLOATING_POINT */
- case 'n':
-#ifdef _HAVE_SANE_QUAD_
- if (flags & QUADINT)
- *va_arg(ap, quad_t *) = ret;
- else if (flags & LONGINT)
-#else /* _HAVE_SANE_QUAD_ */
- if (flags & LONGINT)
-#endif /* _HAVE_SANE_QUAD_ */
- *va_arg(ap, long *) = ret;
- else if (flags & SHORTINT)
- *va_arg(ap, short *) = ret;
- else
- *va_arg(ap, int *) = ret;
- continue; /* no output */
- case 'O':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'o':
-#ifdef _HAVE_SANE_QUAD_
- if (flags & QUADINT)
- uqval = va_arg(ap, u_quad_t);
- else
-#endif /* _HAVE_SANE_QUAD_ */
- 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
- */
- ulval = (u_long)va_arg(ap, void *);
- base = 16;
- xdigs = "0123456789abcdef";
-#ifdef _HAVE_SANE_QUAD_
- flags = (flags & ~QUADINT) | HEXPREFIX;
-#else /* _HAVE_SANE_QUAD_ */
- flags = (flags) | HEXPREFIX;
-#endif /* _HAVE_SANE_QUAD_ */
- ch = 'x';
- goto nosign;
- case 's':
- if ((cp = va_arg(ap, 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 = (char *)memchr(cp, 0, prec);
-
- if (p != NULL) {
- size = p - cp;
- if (size > prec)
- size = prec;
- } else
- size = prec;
- } else
- size = strlen(cp);
- sign = '\0';
- break;
- case 'U':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'u':
-#ifdef _HAVE_SANE_QUAD_
- if (flags & QUADINT)
- uqval = va_arg(ap, u_quad_t);
- else
-#endif /* _HAVE_SANE_QUAD_ */
- ulval = UARG();
- base = 10;
- goto nosign;
- case 'X':
- xdigs = "0123456789ABCDEF";
- goto hex;
- case 'x':
- xdigs = "0123456789abcdef";
-hex:
-#ifdef _HAVE_SANE_QUAD_
- if (flags & QUADINT)
- uqval = va_arg(ap, u_quad_t);
- else
-#endif /* _HAVE_SANE_QUAD_ */
- ulval = UARG();
- base = 16;
- /* leading 0x/X only if non-zero */
- if (flags & ALT &&
-#ifdef _HAVE_SANE_QUAD_
- (flags & QUADINT ? uqval != 0 : ulval != 0))
-#else /* _HAVE_SANE_QUAD_ */
- ulval != 0)
-#endif /* _HAVE_SANE_QUAD_ */
- flags |= HEXPREFIX;
-
- /* 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
- */
- cp = buf + BUF;
-#ifdef _HAVE_SANE_QUAD_
- if (flags & QUADINT) {
- if (uqval != 0 || prec != 0)
- cp = __uqtoa(uqval, cp, base,
- flags & ALT, xdigs);
- } else {
-#else /* _HAVE_SANE_QUAD_ */
- {
-#endif /* _HAVE_SANE_QUAD_ */
- if (ulval != 0 || prec != 0)
- cp = BSD__ultoa(ulval, cp, base,
- flags & ALT, xdigs);
- }
- size = buf + BUF - cp;
- 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.
- * fieldsz excludes decimal prec; realsz includes it.
- */
- fieldsz = size;
- if (sign)
- fieldsz++;
- else if (flags & HEXPREFIX)
- fieldsz += 2;
- realsz = dprec > fieldsz ? dprec : fieldsz;
-
- /* right-adjusting blank padding */
- if ((flags & (LADJUST|ZEROPAD)) == 0)
- PAD(width - realsz, blanks);
-
- /* prefix */
- if (sign) {
- PRINT(&sign, 1);
- } else if (flags & HEXPREFIX) {
- ox[0] = '0';
- ox[1] = ch;
- PRINT(ox, 2);
- }
-
- /* right-adjusting zero padding */
- if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD)
- PAD(width - realsz, zeroes);
-
- /* leading zeroes from decimal precision */
- PAD(dprec - fieldsz, zeroes);
-
- /* the string or number proper */
-#ifdef FLOATING_POINT
- if ((flags & FPT) == 0) {
- PRINT(cp, size);
- } else { /* glue together f_p fragments */
- if (ch >= 'f') { /* 'f' or 'g' */
- if (_double == 0) {
- /* kludge for __dtoa irregularity */
- if (prec == 0 ||
- (flags & ALT) == 0) {
- PRINT("0", 1);
- } else {
- PRINT("0.", 2);
- PAD(ndig - 1, zeroes);
- }
- } else if (expt <= 0) {
- PRINT("0.", 2);
- PAD(-expt, zeroes);
- PRINT(cp, ndig);
- } else if (expt >= ndig) {
- PRINT(cp, ndig);
- PAD(expt - ndig, zeroes);
- if (flags & ALT)
- PRINT(".", 1);
- } else {
- PRINT(cp, expt);
- cp += expt;
- PRINT(".", 1);
- PRINT(cp, ndig-expt);
- }
- } else { /* 'e' or 'E' */
- if (ndig > 1 || flags & ALT) {
- ox[0] = *cp++;
- ox[1] = '.';
- PRINT(ox, 2);
- if (_double || flags & ALT == 0) {
- PRINT(cp, ndig-1);
- } else /* 0.[0..] */
- /* __dtoa irregularity */
- PAD(ndig - 1, zeroes);
- } else /* XeYYY */
- PRINT(cp, 1);
- PRINT(expstr, expsize);
- }
- }
-#else
- PRINT(cp, size);
-#endif
- /* left-adjusting padding (always blank) */
- if (flags & LADJUST)
- PAD(width - realsz, blanks);
-
- /* finally, adjust ret */
- ret += width > realsz ? width : realsz;
-
- FLUSH(); /* copy out the I/O vectors */
- }
-done:
- FLUSH();
-error:
- return (__sferror(fp) ? EOF : ret);
- /* NOTREACHED */
-}
-
-#ifdef FLOATING_POINT
-
-extern char *BSD__dtoa __P((double, int, int, int *, int *, char **));
-
-static char *
-cvt(value, ndigits, flags, sign, decpt, ch, length)
- double value;
- int ndigits, flags, *decpt, ch, *length;
- char *sign;
-{
- int mode, dsgn;
- char *digits, *bp, *rve;
-
- if (ch == 'f')
- mode = 3;
- else {
- mode = 2;
- }
- if (value < 0) {
- value = -value;
- *sign = '-';
- } else
- *sign = '\000';
- digits = BSD__dtoa(value, mode, ndigits, decpt, &dsgn, &rve);
- if (flags & ALT) { /* Print trailing zeros */
- bp = digits + ndigits;
- if (ch == 'f') {
- if (*digits == '0' && value)
- *decpt = -ndigits + 1;
- bp += *decpt;
- }
- if (value == 0) /* kludge for __dtoa irregularity */
- rve = bp;
- while (rve < bp)
- *rve++ = '0';
- }
- *length = rve - digits;
- return (digits);
-}
-
-static int
-exponent(p0, exp, fmtch)
- char *p0;
- int exp, fmtch;
-{
- register char *p, *t;
- char expbuf[MAXEXP];
-
- p = p0;
- *p++ = fmtch;
- if (exp < 0) {
- exp = -exp;
- *p++ = '-';
- }
- else
- *p++ = '+';
- t = expbuf + MAXEXP;
- if (exp > 9) {
- do {
- *--t = to_char(exp % 10);
- } while ((exp /= 10) > 9);
- *--t = to_char(exp);
- for (; t < expbuf + MAXEXP; *p++ = *t++);
- }
- else {
- *p++ = '0';
- *p++ = to_char(exp);
- }
- return (p - p0);
-}
-#endif /* FLOATING_POINT */
-
-vsnprintf(str, n, fmt, ap)
- char *str;
- size_t n;
- const char *fmt;
- _BSD_VA_LIST_ ap;
-{
- int ret;
- FILE f;
-
- if ((int)n < 1)
- return (EOF);
- f._flags = __SWR | __SSTR;
- f._bf._base = f._p = (unsigned char *)str;
- f._bf._size = f._w = n - 1;
- ret = BSD_vfprintf(&f, fmt, ap);
- *f._p = 0;
- return (ret);
-}
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)snprintf.c 8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-
-#include <stddef.h>
-
-#if defined(__STDC__)
-# include <stdarg.h>
-#else
-# include <varargs.h>
-#endif
-
-#if defined(__STDC__)
-snprintf(char *str, size_t n, char const *fmt, ...)
-#else
-snprintf(str, n, fmt, va_alist)
-char *str, *fmt;
-size_t n;
-va_dcl
-#endif
-{
- int ret;
- va_list ap;
- FILE f;
-
- if ((int)n < 1)
- return (EOF);
-
-#if defined(__STDC__)
- va_start(ap, fmt);
-#else
- va_start(ap);
-#endif
- f._flags = __SWR | __SSTR;
- f._bf._base = f._p = (unsigned char *)str;
- f._bf._size = f._w = n - 1;
- ret = BSD_vfprintf(&f, fmt, ap);
- *f._p = 0;
- va_end(ap);
- return (ret);
-}