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  • This comparison shows the changes necessary to convert path 
    /openrisc/trunk/rtos/ecos-2.0/packages/language/c/libc/stdio/v2_0/src/input
    from Rev 27 to Rev 174
    ↔ Reverse comparison
  •

Rev 27 → Rev 174

/fscanf.cxx
0,0 → 1,82
//===========================================================================
//
// fscanf.cxx
//
// ANSI Stdio fscanf() function
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <limits.h> // INT_MAX
 
// FUNCTIONS
 
externC int
fscanf( FILE *stream, const char *format, ... )
{
int rc; // return code
va_list ap; // for variable args
 
va_start(ap, format); // init specifying last non-var arg
 
rc = vfscanf( stream, format, ap );
 
va_end(ap); // end var args
 
return rc;
} // fscanf()
 
// EOF fscanf.cxx
/fread.cxx
0,0 → 1,123
//========================================================================
//
// fread.cxx
//
// ANSI Stdio fread() function
//
//========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//=======================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <cyg/infra/cyg_ass.h> // Assertion support
#include <cyg/infra/cyg_trac.h> // Tracing support
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <errno.h> // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
 
// FUNCTIONS
 
externC size_t
fread( void *ptr, size_t object_size, size_t num_objects, FILE *stream )
{
Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
cyg_ucount32 bytes_read;
cyg_ucount32 bytes_to_read;
cyg_ucount32 total_read;
Cyg_ErrNo err;
cyg_uint8 *ptrc = (cyg_uint8 *)ptr;
 
CYG_REPORT_FUNCNAMETYPE( "fread", "read %d objects" );
CYG_REPORT_FUNCARG4( "ptr=%08x, object_size=%d, num_objects=%d, "
"stream=%08x", ptr, object_size, num_objects,
stream );
 
bytes_to_read = object_size*num_objects;
total_read = 0;
 
if ( !bytes_to_read ) {
CYG_REPORT_RETVAL(0);
return 0;
} // if
 
err = real_stream->read( (cyg_uint8 *)ptr, bytes_to_read,
&bytes_read );
bytes_to_read -= bytes_read;
total_read += bytes_read;
ptrc += bytes_read;
 
while (!err && bytes_to_read) { // if no err, but not finished - get next
err = real_stream->refill_read_buffer();
if ( !err ) {
err = real_stream->read( (cyg_uint8 *)ptrc, bytes_to_read,
&bytes_read );
bytes_to_read -= bytes_read;
total_read += bytes_read;
ptrc += bytes_read;
} // if
} // while
 
if (err) {
real_stream->set_error( err );
errno = err;
} // if
// we return the number of _objects_ read. Simple division is
// sufficient as this returns the quotient rather than rounding
CYG_REPORT_RETVAL( bytes_read/object_size );
return total_read/object_size;
 
} // fread()
 
// EOF fread.cxx
/gets.cxx
0,0 → 1,124
//===========================================================================
//
// gets.cxx
//
// ISO C standard I/O gets() function
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2001-03-15
// Purpose: Implementation of ISO C standard I/O gets() function
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common type definitions
#include <cyg/infra/cyg_ass.h> // Assertion support
#include <cyg/infra/cyg_trac.h> // Tracing support
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <errno.h> // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
 
// FUNCTIONS
 
// FIXME: should be reworked to read buffer at a time, and scan that
// for newlines, rather than reading byte at a time.
 
externC char *
gets( char *s )
{
Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stdin;
Cyg_ErrNo err=ENOERR;
cyg_uint8 c;
cyg_uint8 *str=(cyg_uint8 *)s;
int nch;
 
CYG_CHECK_DATA_PTRC( s );
CYG_CHECK_DATA_PTRC( real_stream );
 
CYG_REPORT_FUNCTYPE( "returning string %08x");
CYG_REPORT_FUNCARG1( "s=%08x", s );
for (nch=1;; nch++) {
err = real_stream->read_byte( &c );
// if nothing to read, try again ONCE after refilling buffer
if (EAGAIN == err) {
err = real_stream->refill_read_buffer();
if ( !err )
err = real_stream->read_byte( &c );
 
if (EAGAIN == err) {
if (1 == nch) { // indicates EOF at start
CYG_REPORT_RETVAL( NULL );
return NULL;
} else
break; // EOF
} // if
} // if
if ('\n' == c) // discard newlines
break;
*str++ = c;
} // while
*str = '\0'; // NULL terminate it
if (err && EAGAIN != err) {
real_stream->set_error( err );
errno = err;
CYG_REPORT_RETVAL( NULL );
return NULL;
} // if
 
CYG_REPORT_RETVAL( s );
return s;
} // gets()
 
// EOF gets.cxx
/vfscanf.cxx
0,0 → 1,1002
//========================================================================
//
// vfscanf.cxx
//
// I/O routines for vfscanf() for use with ANSI C library
//
//========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//========================================================================
//
// This code is based on original code with the following copyright:
//
/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
 
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
#include <pkgconf/libc_i18n.h> // Configuration header for mb support
 
// We have to have ungetc for this to work
#if defined(CYGFUN_LIBC_STDIO_ungetc)
 
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common type definitions and support
#include <stdarg.h> // Variable argument definitions
#include <stdio.h> // Standard header for all stdio files
#include <ctype.h> // isspace() and isupper()
#include <stdlib.h> // standard utility functions e.g. strtol
#include <cyg/libc/stdio/stream.hxx> // C library streams
 
#ifdef CYGSEM_LIBC_STDIO_SCANF_FLOATING_POINT
 
#include <float.h>
 
# define MAXFRACT DBL_DIG
# define MAXEXP DBL_MAX_10_EXP
 
# define BUF (MAXEXP+MAXFRACT+3) /* 3 = sign + decimal point + NUL */
 
#else // ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
# define BUF 40
 
#endif // ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
/*
* Flags used during conversion.
*/
 
#define LONG 0x01 /* l: long or double */
#define LONGDBL 0x02 /* L: long double; unimplemented */
#define SHORT 0x04 /* h: short */
#define SUPPRESS 0x08 /* suppress assignment */
#define POINTER 0x10 /* weird %p pointer (`fake hex') */
#define NOSKIP 0x20 /* do not skip blanks */
 
/*
* The following are used in numeric conversions only:
* SIGNOK, NDIGITS, DPTOK, and EXPOK are for floating point;
* SIGNOK, NDIGITS, PFXOK, and NZDIGITS are for integral.
*/
 
#define SIGNOK 0x40 /* +/- is (still) legal */
#define NDIGITS 0x80 /* no digits detected */
 
#define DPTOK 0x100 /* (float) decimal point is still legal */
#define EXPOK 0x200 /* (float) exponent (e+3, etc) still
legal */
 
#define PFXOK 0x100 /* 0x prefix is (still) legal */
#define NZDIGITS 0x200 /* no zero digits detected */
 
/*
* Conversion types.
*/
 
#define CT_CHAR 0 /* %c conversion */
#define CT_CCL 1 /* %[...] conversion */
#define CT_STRING 2 /* %s conversion */
#define CT_INT 3 /* integer, i.e., strtol or strtoul */
#define CT_FLOAT 4 /* floating, i.e., strtod */
 
#if 0
#define u_char unsigned char
#endif
#define u_char char
#define u_long unsigned long
 
typedef unsigned long (*strtoul_t)(const char *, char **endptr, int base);
 
static u_char *
__sccl (char *tab, u_char *fmt);
 
 
/*
* vfscanf
*/
 
#define _CAST_VOID
 
#define CURR_POS (file->peek_byte( (cyg_uint8 *)&curr_byte),&curr_byte )
 
#define INC_CURR_POS ( file->read_byte( (cyg_uint8 *)&curr_byte ) )
 
#define MOVE_CURR_POS(x) (file->set_position( (x), SEEK_CUR ))
 
#define SPACE_LEFT (file->bytes_available_to_read())
 
#define REFILL (file->refill_read_buffer())
 
#define BufferEmpty ( !SPACE_LEFT && \
(REFILL, (!SPACE_LEFT)) )
 
#ifdef CYGINT_LIBC_I18N_MB_REQUIRED
typedef int (*mbtowc_fn_type)(wchar_t *, const char *, size_t, int *);
externC mbtowc_fn_type __get_current_locale_mbtowc_fn();
#endif
 
externC int
vfscanf (FILE *fp, const char *fmt0, va_list ap)
{
u_char *fmt = (u_char *) fmt0;
int c; /* character from format, or conversion */
wchar_t wc; /* wide character from format */
size_t width; /* field width, or 0 */
char *p; /* points into all kinds of strings */
int n; /* handy integer */
int flags; /* flags as defined above */
char *p0; /* saves original value of p when necessary */
char *lptr; /* literal pointer */
int nassigned; /* number of fields assigned */
int nread; /* number of characters consumed from fp */
int base = 0; /* base argument to strtol/strtoul */
int nbytes = 1; /* number of bytes processed */
 
#ifdef CYGINT_LIBC_I18N_MB_REQUIRED
mbtowc_fn_type mbtowc_fn;
int state = 0; /* used for mbtowc_fn */
#endif
strtoul_t ccfn = NULL; /* conversion function (strtol/strtoul) */
char ccltab[256]; /* character class table for %[...] */
char buf[BUF]; /* buffer for numeric conversions */
 
Cyg_StdioStream *file = (Cyg_StdioStream *)fp;
char curr_byte;
 
short *sp;
int *ip;
float *flp;
long double *ldp;
double *dp;
long *lp;
 
/* `basefix' is used to avoid `if' tests in the integer scanner */
static const short basefix[17] =
{10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
 
#ifdef CYGINT_LIBC_I18N_MB_REQUIRED
mbtowc_fn = __get_current_locale_mbtowc_fn();
#endif
 
nassigned = 0;
nread = 0;
for (;;)
{
#ifndef CYGINT_LIBC_I18N_MB_REQUIRED
wc = *fmt;
#else
nbytes = mbtowc_fn (&wc, fmt, MB_CUR_MAX, &state);
#endif
fmt += nbytes;
 
if (wc == 0)
return nassigned;
if (nbytes == 1 && isspace (wc))
{
for (;;)
{
if (BufferEmpty)
return nassigned;
if (!isspace (*CURR_POS))
break;
nread++, INC_CURR_POS;
}
continue;
}
if (wc != '%')
goto literal;
width = 0;
flags = 0;
 
/*
* switch on the format. continue if done; break once format
* type is derived.
*/
again:
c = *fmt++;
switch (c)
{
case '%':
literal:
lptr = fmt - nbytes;
for (n = 0; n < nbytes; ++n)
{
if (BufferEmpty)
goto input_failure;
if (*CURR_POS != *lptr)
goto match_failure;
INC_CURR_POS;
nread++;
++lptr;
}
continue;
 
case '*':
flags |= SUPPRESS;
goto again;
case 'l':
flags |= LONG;
goto again;
case 'L':
flags |= LONGDBL;
goto again;
case 'h':
flags |= SHORT;
goto again;
 
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
width = width * 10 + c - '0';
goto again;
 
/*
* Conversions. Those marked `compat' are for
* 4.[123]BSD compatibility.
*
* (According to ANSI, E and X formats are supposed to
* the same as e and x. Sorry about that.)
*/
 
case 'D': /* compat */
flags |= LONG;
/* FALLTHROUGH */
case 'd':
c = CT_INT;
ccfn = (strtoul_t)strtol;
base = 10;
break;
 
case 'i':
c = CT_INT;
ccfn = (strtoul_t)strtol;
base = 0;
break;
 
case 'O': /* compat */
flags |= LONG;
/* FALLTHROUGH */
case 'o':
c = CT_INT;
ccfn = strtoul;
base = 8;
break;
 
case 'u':
c = CT_INT;
ccfn = strtoul;
base = 10;
break;
 
case 'X': /* compat XXX */
case 'x':
flags |= PFXOK; /* enable 0x prefixing */
c = CT_INT;
ccfn = strtoul;
base = 16;
break;
 
case 'E': /* compat XXX */
case 'G': /* compat XXX */
/* ANSI says that E,G and X behave the same way as e,g,x */
/* FALLTHROUGH */
case 'e':
case 'f':
case 'g':
c = CT_FLOAT;
break;
 
case 's':
c = CT_STRING;
break;
 
case '[':
fmt = __sccl (ccltab, fmt);
flags |= NOSKIP;
c = CT_CCL;
break;
 
case 'c':
flags |= NOSKIP;
c = CT_CHAR;
break;
 
case 'p': /* pointer format is like hex */
flags |= POINTER | PFXOK;
c = CT_INT;
ccfn = strtoul;
base = 16;
break;
 
case 'n':
if (flags & SUPPRESS) /* ??? */
continue;
if (flags & SHORT)
{
sp = va_arg (ap, short *);
*sp = nread;
}
else if (flags & LONG)
{
lp = va_arg (ap, long *);
*lp = nread;
}
else
{
ip = va_arg (ap, int *);
*ip = nread;
}
continue;
 
/*
* Disgusting backwards compatibility hacks. XXX
*/
case '\0': /* compat */
return EOF;
 
default: /* compat */
if (isupper (c))
flags |= LONG;
c = CT_INT;
ccfn = (strtoul_t)strtol;
base = 10;
break;
}
 
/*
* We have a conversion that requires input.
*/
if (BufferEmpty)
goto input_failure;
 
/*
* Consume leading white space, except for formats that
* suppress this.
*/
if ((flags & NOSKIP) == 0)
{
while (isspace (*CURR_POS))
{
nread++;
INC_CURR_POS;
if (SPACE_LEFT == 0)
#ifndef REDHAT_NEC
if (REFILL)
#endif
goto input_failure;
}
/*
* Note that there is at least one character in the
* buffer, so conversions that do not set NOSKIP ca
* no longer result in an input failure.
*/
}
 
/*
* Do the conversion.
*/
switch (c)
{
 
case CT_CHAR:
/* scan arbitrary characters (sets NOSKIP) */
if (width == 0)
width = 1;
if (flags & SUPPRESS)
{
size_t sum = 0;
 
for (;;)
{
if ((n = SPACE_LEFT) < (signed)width)
{
sum += n;
width -= n;
MOVE_CURR_POS(n-1);
INC_CURR_POS;
#ifndef REDHAT_NEC
if (REFILL)
{
#endif
if (sum == 0)
goto input_failure;
break;
#ifndef REDHAT_NEC
}
#endif
}
else
{
sum += width;
MOVE_CURR_POS(width - 1);
INC_CURR_POS;
break;
}
}
nread += sum;
}
else
{
/* Kludge city for the moment */
char *dest = va_arg (ap, char *);
int n = width;
if (SPACE_LEFT == 0)
#ifndef REDHAT_NEC
if (REFILL)
#endif
goto input_failure;
 
while (n && !BufferEmpty)
{
*dest++ = *CURR_POS;
INC_CURR_POS;
n--;
nread++;
}
nassigned++;
}
break;
 
case CT_CCL:
/* scan a (nonempty) character class (sets NOSKIP) */
if (width == 0)
width = ~0; /* `infinity' */
/* take only those things in the class */
if (flags & SUPPRESS)
{
n = 0;
while (ccltab[*CURR_POS])
{
n++, INC_CURR_POS;
if (--width == 0)
break;
if (BufferEmpty)
{
if (n == 0)
goto input_failure;
break;
}
}
if (n == 0)
goto match_failure;
}
else
{
p0 = p = va_arg (ap, char *);
while (ccltab[*CURR_POS])
{
*p++ = *CURR_POS;
INC_CURR_POS;
if (--width == 0)
break;
if (BufferEmpty)
{
if (p == p0)
goto input_failure;
break;
}
}
n = p - p0;
if (n == 0)
goto match_failure;
*p = 0;
nassigned++;
}
nread += n;
break;
 
case CT_STRING:
/* like CCL, but zero-length string OK, & no NOSKIP */
if (width == 0)
width = ~0;
if (flags & SUPPRESS)
{
n = 0;
while (!isspace (*CURR_POS))
{
n++, INC_CURR_POS;
if (--width == 0)
break;
if (BufferEmpty)
break;
}
nread += n;
}
else
{
p0 = p = va_arg (ap, char *);
while (!isspace (*CURR_POS))
{
*p++ = *CURR_POS;
INC_CURR_POS;
if (--width == 0)
break;
if (BufferEmpty)
break;
}
*p = 0;
nread += p - p0;
nassigned++;
}
continue;
 
case CT_INT:
/* scan an integer as if by strtol/strtoul */
#ifdef hardway
if (width == 0 || width > sizeof (buf) - 1)
width = sizeof (buf) - 1;
#else
/* size_t is unsigned, hence this optimisation */
if (--width > sizeof (buf) - 2)
width = sizeof (buf) - 2;
width++;
#endif
flags |= SIGNOK | NDIGITS | NZDIGITS;
for (p = buf; width; width--)
{
c = *CURR_POS;
/*
* Switch on the character; `goto ok' if we
* accept it as a part of number.
*/
switch (c)
{
/*
* The digit 0 is always legal, but is special.
* For %i conversions, if no digits (zero or nonzero)
* have been scanned (only signs), we will have base==0
* In that case, we should set it to 8 and enable 0x
* prefixing. Also, if we have not scanned zero digits
* before this, do not turn off prefixing (someone else
* will turn it off if we have scanned any nonzero
* digits).
*/
case '0':
if (base == 0)
{
base = 8;
flags |= PFXOK;
}
if (flags & NZDIGITS)
flags &= ~(SIGNOK | NZDIGITS | NDIGITS);
else
flags &= ~(SIGNOK | PFXOK | NDIGITS);
goto ok;
 
/* 1 through 7 always legal */
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
base = basefix[base];
flags &= ~(SIGNOK | PFXOK | NDIGITS);
goto ok;
 
/* digits 8 and 9 ok iff decimal or hex */
case '8':
case '9':
base = basefix[base];
if (base <= 8)
break; /* not legal here */
flags &= ~(SIGNOK | PFXOK | NDIGITS);
goto ok;
 
/* letters ok iff hex */
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
/* no need to fix base here */
if (base <= 10)
break; /* not legal here */
flags &= ~(SIGNOK | PFXOK | NDIGITS);
goto ok;
 
/* sign ok only as first character */
case '+':
case '-':
if (flags & SIGNOK)
{
flags &= ~SIGNOK;
goto ok;
}
break;
 
/* x ok iff flag still set & 2nd char */
case 'x':
case 'X':
if (flags & PFXOK && p == buf + 1)
{
base = 16;/* if %i */
flags &= ~PFXOK;
goto ok;
}
break;
}
 
/*
* If we got here, c is not a legal character
* for a number. Stop accumulating digits.
*/
break;
ok:
/*
* c is legal: store it and look at the next.
*/
*p++ = c;
INC_CURR_POS;
if (SPACE_LEFT == 0)
#ifndef REDHAT_NEC
if (REFILL)
#endif
break; /* EOF */
}
/*
* If we had only a sign, it is no good; push back the sign.
* If the number ends in `x', it was [sign] '0' 'x', so push
* back the x and treat it as [sign] '0'.
*/
if (flags & NDIGITS)
{
if (p > buf)
_CAST_VOID ungetc (*(u_char *)-- p, fp);
goto match_failure;
}
c = ((u_char *) p)[-1];
if (c == 'x' || c == 'X')
{
--p;
/*(void)*/ ungetc (c, fp);
}
if ((flags & SUPPRESS) == 0)
{
u_long res;
 
*p = 0;
res = (*ccfn) (buf, (char **) NULL, base);
if (flags & POINTER)
*(va_arg (ap, char **)) = (char *) (CYG_ADDRESS) res;
else if (flags & SHORT)
{
sp = va_arg (ap, short *);
*sp = res;
}
else if (flags & LONG)
{
lp = va_arg (ap, long *);
*lp = res;
}
else
{
ip = va_arg (ap, int *);
*ip = res;
}
nassigned++;
}
nread += p - buf;
break;
 
case CT_FLOAT:
/* scan a floating point number as if by strtod */
 
#ifdef hardway
if (width == 0 || width > sizeof (buf) - 1)
width = sizeof (buf) - 1;
#else
/* size_t is unsigned, hence this optimisation */
if (--width > sizeof (buf) - 2)
width = sizeof (buf) - 2;
width++;
#endif // ifdef hardway
 
flags |= SIGNOK | NDIGITS | DPTOK | EXPOK;
for (p = buf; width; width--)
{
c = *CURR_POS;
/*
* This code mimicks the integer conversion
* code, but is much simpler.
*/
switch (c)
{
 
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
flags &= ~(SIGNOK | NDIGITS);
goto fok;
 
case '+':
case '-':
if (flags & SIGNOK)
{
flags &= ~SIGNOK;
goto fok;
}
break;
case '.':
if (flags & DPTOK)
{
flags &= ~(SIGNOK | DPTOK);
goto fok;
}
break;
case 'e':
case 'E':
/* no exponent without some digits */
if ((flags & (NDIGITS | EXPOK)) == EXPOK)
{
flags =
(flags & ~(EXPOK | DPTOK)) |
SIGNOK | NDIGITS;
goto fok;
}
break;
}
break;
fok:
*p++ = c;
INC_CURR_POS;
if (SPACE_LEFT == 0)
#ifndef REDHAT_NEC
if (REFILL)
#endif
break; /* EOF */
}
/*
* If no digits, might be missing exponent digits
* (just give back the exponent) or might be missing
* regular digits, but had sign and/or decimal point.
*/
if (flags & NDIGITS)
{
if (flags & EXPOK)
{
/* no digits at all */
while (p > buf)
ungetc (*(u_char *)-- p, fp);
goto match_failure;
}
/* just a bad exponent (e and maybe sign) */
c = *(u_char *)-- p;
if (c != 'e' && c != 'E')
{
_CAST_VOID ungetc (c, fp); /* sign */
c = *(u_char *)-- p;
}
_CAST_VOID ungetc (c, fp);
}
if ((flags & SUPPRESS) == 0)
{
double res;
 
*p = 0;
#ifdef CYGSEM_LIBC_STDIO_SCANF_FLOATING_POINT
res = atof (buf);
#else
res = 0.0;
#endif
if (flags & LONG)
{
dp = va_arg (ap, double *);
*dp = res;
}
else if (flags & LONGDBL)
{
ldp = va_arg (ap, long double *);
*ldp = res;
}
else
{
flp = va_arg (ap, float *);
*flp = res;
}
nassigned++;
}
nread += p - buf;
break;
}
}
 
input_failure:
return nassigned ? nassigned : -1;
match_failure:
return nassigned;
} // vfscanf()
 
/*
* Fill in the given table from the scanset at the given format
* (just after `['). Return a pointer to the character past the
* closing `]'. The table has a 1 wherever characters should be
* considered part of the scanset.
*/
 
/*static*/
u_char *
__sccl (char *tab, u_char *fmt)
{
int c, n, v;
 
/* first `clear' the whole table */
c = *fmt++; /* first char hat => negated scanset */
if (c == '^')
{
v = 1; /* default => accept */
c = *fmt++; /* get new first char */
}
else
v = 0; /* default => reject */
/* should probably use memset here */
for (n = 0; n < 256; n++)
tab[n] = v;
if (c == 0)
return fmt - 1; /* format ended before closing ] */
 
/*
* Now set the entries corresponding to the actual scanset to the
* opposite of the above.
*
* The first character may be ']' (or '-') without being special; the
* last character may be '-'.
*/
 
v = 1 - v;
for (;;)
{
tab[c] = v; /* take character c */
doswitch:
n = *fmt++; /* and examine the next */
switch (n)
{
 
case 0: /* format ended too soon */
return fmt - 1;
 
case '-':
/*
* A scanset of the form [01+-] is defined as `the digit 0, the
* digit 1, the character +, the character -', but the effect
* of a scanset such as [a-zA-Z0-9] is implementation defined.
* The V7 Unix scanf treats `a-z' as `the letters a through z',
* but treats `a-a' as `the letter a, the character -, and the
* letter a'.
*
* For compatibility, the `-' is not considerd to define a
* range if the character following it is either a close
* bracket (required by ANSI) or is not numerically greater
* than the character we just stored in the table (c).
*/
n = *fmt;
if (n == ']' || n < c)
{
c = '-';
break; /* resume the for(;;) */
}
fmt++;
do
{ /* fill in the range */
tab[++c] = v;
}
while (c < n);
#if 1 /* XXX another disgusting compatibility hack */
/*
* Alas, the V7 Unix scanf also treats formats such
* as [a-c-e] as `the letters a through e'. This too
* is permitted by the standard....
*/
goto doswitch;
#else
c = *fmt++;
if (c == 0)
return fmt - 1;
if (c == ']')
return fmt;
#endif
 
break;
 
 
case ']': /* end of scanset */
return fmt;
 
default: /* just another character */
c = n;
break;
}
}
/* NOTREACHED */
} // __sccl()
 
#endif // if defined(CYGFUN_LIBC_STDIO_ungetc)
 
// EOF vfscanf.cxx
/fgetc.cxx
0,0 → 1,131
//===========================================================================
//
// fgetc.cxx
//
// ISO C standard I/O get character functions
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose: Provide the fgetc() function. Also provides the function
// version of getc() and getchar()
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <cyg/infra/cyg_ass.h> // Standard eCos assertion support
#include <cyg/infra/cyg_trac.h> // Standard eCos tracing support
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <errno.h> // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
 
// FUNCTIONS
 
externC int
fgetc( FILE *stream )
{
Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
cyg_ucount32 bytes_read;
Cyg_ErrNo err;
cyg_uint8 c;
 
CYG_REPORT_FUNCNAMETYPE("fgetc", "returning char %d");
CYG_REPORT_FUNCARG1XV( stream );
CYG_CHECK_DATA_PTR( stream, "stream is not a valid pointer" );
 
err = real_stream->read( &c, 1, &bytes_read );
 
// Why do we need this? Because the buffer might be empty.
if (!err && !bytes_read) { // if no err, but nothing to read, try again
err = real_stream->refill_read_buffer();
if ( !err )
err = real_stream->read( &c, 1, &bytes_read );
} // if
 
CYG_ASSERT( (ENOERR != err) || (1 == bytes_read), "Didn't read 1 byte!" );
 
if (err)
{
if ( EAGAIN != err ) {
real_stream->set_error( err );
errno = err;
}
CYG_REPORT_RETVAL(EOF);
return EOF;
} // if
CYG_REPORT_RETVAL((int)c);
return (int)c;
 
} // fgetc()
 
 
// Also define getc() even though it can be a macro.
// Undefine it first though
#undef getchar
 
externC int
getchar( void )
{
return fgetc( stdin );
} // getchar()
 
 
// EXPORTED SYMBOLS
 
// Also define getc() even though it can be a macro.
// Undefine it first though
#undef getc
 
externC int
getc( FILE * ) CYGBLD_ATTRIB_WEAK_ALIAS(fgetc);
 
// EOF fgetc.cxx
/fgets.cxx
0,0 → 1,126
//========================================================================
//
// fgets.cxx
//
// ISO C standard I/O fgets() function
//
//========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2001-03-14
// Purpose: Implementation of ISO C standard I/O fgets() function
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//=======================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common type definitions
#include <cyg/infra/cyg_ass.h> // Assertion support
#include <cyg/infra/cyg_trac.h> // Tracing support
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <errno.h> // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
 
// FUNCTIONS
 
// FIXME: should be reworked to read buffer at a time, and scan that
// for newlines, rather than reading byte at a time.
 
externC char *
fgets( char *s, int n, FILE *stream )
{
Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
Cyg_ErrNo err=ENOERR;
cyg_uint8 c;
cyg_uint8 *str=(cyg_uint8 *)s;
int nch;
 
CYG_CHECK_DATA_PTRC( s );
CYG_CHECK_DATA_PTRC( stream );
CYG_PRECONDITION( n > 0, "requested 0 or negative chars");
 
CYG_REPORT_FUNCTYPE( "returning string %08x");
CYG_REPORT_FUNCARG3( "s=%08x, n=%d, stream=%08x", s, n, stream );
for (nch=1; nch < n; nch++) {
err = real_stream->read_byte( &c );
// if nothing to read, try again ONCE after refilling buffer
if (EAGAIN == err) {
err = real_stream->refill_read_buffer();
if ( !err )
err = real_stream->read_byte( &c );
 
if (EAGAIN == err) {
if (1 == nch) { // indicates EOF at start
CYG_REPORT_RETVAL( NULL );
return NULL;
} else
break; // EOF
} // if
} // if
*str++ = c;
if ('\n' == c)
break;
} // while
*str = '\0'; // NULL terminate it
if (err && EAGAIN != err) {
real_stream->set_error( err );
errno = err;
CYG_REPORT_RETVAL( NULL );
return NULL;
} // if
 
CYG_REPORT_RETVAL( s );
return s;
 
} // fgets()
 
// EOF fgets.cxx
/scanf.cxx
0,0 → 1,82
//===========================================================================
//
// scanf.cxx
//
// ANSI Stdio scanf() function
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
 
// FUNCTIONS
 
 
externC int
scanf( const char *format, ... )
{
int rc; // return code
va_list ap; // for variable args
 
va_start(ap, format); // init specifying last non-var arg
 
rc = vfscanf( stdin, format, ap );
 
va_end(ap); // end var args
 
return rc;
} // scanf()
 
// EOF scanf.cxx

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