Index: vfprintf-process-arg.c
===================================================================
--- vfprintf-process-arg.c (nonexistent)
+++ vfprintf-process-arg.c (revision 11)
@@ -0,0 +1,495 @@
+/* Argument-processing fragment for vfprintf.
+ Copyright (C) 1991-2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* This file is included twice from vfprintf-internal.c, for standard
+ and GNU-style positional (%N$) arguments. Before that,
+ process_arg_int etc. macros have to be defined to extract one
+ argument of the appropriate type, in addition to the file-specific
+ macros in vfprintf-internal.c. */
+
+{
+ /* Start real work. We know about all flags and modifiers and
+ now process the wanted format specifier. */
+LABEL (form_percent):
+ /* Write a literal "%". */
+ Xprintf_buffer_putc (buf, L_('%'));
+ break;
+
+LABEL (form_integer):
+ /* Signed decimal integer. */
+ base = 10;
+
+ if (is_longlong)
+ {
+ long long int signed_number = process_arg_long_long_int ();
+ is_negative = signed_number < 0;
+ number.longlong = is_negative ? (- signed_number) : signed_number;
+
+ goto LABEL (longlong_number);
+ }
+ else
+ {
+ long int signed_number;
+ if (is_long_num)
+ signed_number = process_arg_long_int ();
+ else if (is_char)
+ signed_number = (signed char) process_arg_unsigned_int ();
+ else if (!is_short)
+ signed_number = process_arg_int ();
+ else
+ signed_number = (short int) process_arg_unsigned_int ();
+
+ is_negative = signed_number < 0;
+ number.word = is_negative ? (- signed_number) : signed_number;
+
+ goto LABEL (number);
+ }
+ /* NOTREACHED */
+
+LABEL (form_unsigned):
+ /* Unsigned decimal integer. */
+ base = 10;
+ goto LABEL (unsigned_number);
+ /* NOTREACHED */
+
+LABEL (form_octal):
+ /* Unsigned octal integer. */
+ base = 8;
+ goto LABEL (unsigned_number);
+ /* NOTREACHED */
+
+LABEL (form_hexa):
+ /* Unsigned hexadecimal integer. */
+ base = 16;
+ goto LABEL (unsigned_number);
+ /* NOTREACHED */
+
+LABEL (form_binary):
+ /* Unsigned binary integer. */
+ base = 2;
+ goto LABEL (unsigned_number);
+ /* NOTREACHED */
+
+LABEL (unsigned_number): /* Unsigned number of base BASE. */
+
+ /* ISO specifies the `+' and ` ' flags only for signed
+ conversions. */
+ is_negative = 0;
+ showsign = 0;
+ space = 0;
+
+ if (is_longlong)
+ {
+ number.longlong = process_arg_unsigned_long_long_int ();
+
+ LABEL (longlong_number):
+ if (prec < 0)
+ /* Supply a default precision if none was given. */
+ prec = 1;
+ else
+ /* We have to take care for the '0' flag. If a precision
+ is given it must be ignored. */
+ pad = L_(' ');
+
+ /* If the precision is 0 and the number is 0 nothing has to
+ be written for the number, except for the 'o' format in
+ alternate form. */
+ if (prec == 0 && number.longlong == 0)
+ {
+ string = workend;
+ if (base == 8 && alt)
+ *--string = L_('0');
+ }
+ else
+ /* Put the number in WORK. */
+ string = _itoa (number.longlong, workend, base, spec == L_('X'));
+ /* Simplify further test for num != 0. */
+ number.word = number.longlong != 0;
+ }
+ else
+ {
+ if (is_long_num)
+ number.word = process_arg_unsigned_long_int ();
+ else if (is_char)
+ number.word = (unsigned char) process_arg_unsigned_int ();
+ else if (!is_short)
+ number.word = process_arg_unsigned_int ();
+ else
+ number.word = (unsigned short int) process_arg_unsigned_int ();
+
+ LABEL (number):
+ if (prec < 0)
+ /* Supply a default precision if none was given. */
+ prec = 1;
+ else
+ /* We have to take care for the '0' flag. If a precision
+ is given it must be ignored. */
+ pad = L_(' ');
+
+ /* If the precision is 0 and the number is 0 nothing has to
+ be written for the number, except for the 'o' format in
+ alternate form. */
+ if (prec == 0 && number.word == 0)
+ {
+ string = workend;
+ if (base == 8 && alt)
+ *--string = L_('0');
+ }
+ else
+ /* Put the number in WORK. */
+ string = _itoa_word (number.word, workend, base,
+ spec == L_('X'));
+ }
+
+ /* Grouping is also used for outdigits translation. */
+ struct grouping_iterator iter;
+ bool number_slow_path = group || (use_outdigits && base == 10);
+ if (group)
+ __grouping_iterator_init (&iter, LC_NUMERIC, _NL_CURRENT_LOCALE,
+ workend - string);
+ else if (use_outdigits && base == 10)
+ __grouping_iterator_init_none (&iter, workend - string);
+
+ int number_length;
+#ifndef COMPILE_WPRINTF
+ if (use_outdigits && base == 10)
+ number_length = __translated_number_width (_NL_CURRENT_LOCALE,
+ string, workend);
+ else
+ number_length = workend - string;
+ if (group)
+ number_length += iter.separators * strlen (thousands_sep);
+#else
+ number_length = workend - string;
+ /* All wide separators have length 1. */
+ if (group && thousands_sep != L'\0')
+ number_length += iter.separators;
+#endif
+
+ /* The marker comes right before the number, but is not subject
+ to grouping. */
+ bool octal_marker = (prec <= number_length && number.word != 0
+ && alt && base == 8);
+
+ prec = MAX (0, prec - (workend - string));
+
+ if (!left)
+ {
+ width -= number_length + prec;
+
+ if (number.word != 0 && alt && (base == 16 || base == 2))
+ /* Account for 0X, 0x, 0B or 0b hex or binary marker. */
+ width -= 2;
+
+ if (octal_marker)
+ --width;
+
+ if (is_negative || showsign || space)
+ --width;
+
+ if (pad == L_(' '))
+ {
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ width = 0;
+ }
+
+ if (is_negative)
+ Xprintf_buffer_putc (buf, L_('-'));
+ else if (showsign)
+ Xprintf_buffer_putc (buf, L_('+'));
+ else if (space)
+ Xprintf_buffer_putc (buf, L_(' '));
+
+ if (number.word != 0 && alt && (base == 16 || base == 2))
+ {
+ Xprintf_buffer_putc (buf, L_('0'));
+ Xprintf_buffer_putc (buf, spec);
+ }
+
+ width += prec;
+ Xprintf_buffer_pad (buf, L_('0'), width);
+
+ if (octal_marker)
+ Xprintf_buffer_putc (buf, L_('0'));
+
+ if (number_slow_path)
+ group_number (buf, &iter, string, workend, thousands_sep,
+ use_outdigits && base == 10);
+ else
+ Xprintf_buffer_write (buf, string, workend - string);
+
+ break;
+ }
+ else
+ {
+ if (is_negative)
+ {
+ Xprintf_buffer_putc (buf, L_('-'));
+ --width;
+ }
+ else if (showsign)
+ {
+ Xprintf_buffer_putc (buf, L_('+'));
+ --width;
+ }
+ else if (space)
+ {
+ Xprintf_buffer_putc (buf, L_(' '));
+ --width;
+ }
+
+ if (number.word != 0 && alt && (base == 16 || base == 2))
+ {
+ Xprintf_buffer_putc (buf, L_('0'));
+ Xprintf_buffer_putc (buf, spec);
+ width -= 2;
+ }
+
+ if (octal_marker)
+ --width;
+
+ width -= number_length + prec;
+
+ Xprintf_buffer_pad (buf, L_('0'), prec);
+
+ if (octal_marker)
+ Xprintf_buffer_putc (buf, L_('0'));
+
+ if (number_slow_path)
+ group_number (buf, &iter, string, workend, thousands_sep,
+ use_outdigits && base == 10);
+ else
+ Xprintf_buffer_write (buf, string, workend - string);
+
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ break;
+ }
+
+LABEL (form_pointer):
+ /* Generic pointer. */
+ {
+ const void *ptr = process_arg_pointer ();
+ if (ptr != NULL)
+ {
+ /* If the pointer is not NULL, write it as a %#x spec. */
+ base = 16;
+ number.word = (unsigned long int) ptr;
+ is_negative = 0;
+ alt = 1;
+ group = 0;
+ spec = L_('x');
+ goto LABEL (number);
+ }
+ else
+ {
+ /* Write "(nil)" for a nil pointer. */
+ string = (CHAR_T *) L_("(nil)");
+ /* Make sure the full string "(nil)" is printed. */
+ if (prec < 5)
+ prec = 5;
+ /* This is a wide string iff compiling wprintf. */
+ is_long = sizeof (CHAR_T) > 1;
+ goto LABEL (print_string);
+ }
+ }
+ /* NOTREACHED */
+
+LABEL (form_number):
+ if ((mode_flags & PRINTF_FORTIFY) != 0)
+ {
+ if (! readonly_format)
+ {
+ extern int __readonly_area (const void *, size_t)
+ attribute_hidden;
+ readonly_format
+ = __readonly_area (format, ((STR_LEN (format) + 1)
+ * sizeof (CHAR_T)));
+ }
+ if (readonly_format < 0)
+ __libc_fatal ("*** %n in writable segment detected ***\n");
+ }
+ /* Answer the count of characters written. */
+ void *ptrptr = process_arg_pointer ();
+ unsigned int written = Xprintf_buffer_done (buf);
+ if (is_longlong)
+ *(long long int *) ptrptr = written;
+ else if (is_long_num)
+ *(long int *) ptrptr = written;
+ else if (is_char)
+ *(char *) ptrptr = written;
+ else if (!is_short)
+ *(int *) ptrptr = written;
+ else
+ *(short int *) ptrptr = written;
+ break;
+
+LABEL (form_strerror):
+ /* Print description of error ERRNO. */
+ if (alt)
+ string = (CHAR_T *) __get_errname (save_errno);
+ else
+ string = (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer,
+ WORK_BUFFER_SIZE * sizeof (CHAR_T));
+ if (string == NULL)
+ {
+ /* Print as a decimal number. */
+ base = 10;
+ is_negative = save_errno < 0;
+ number.word = save_errno;
+ if (is_negative)
+ number.word = -number.word;
+ goto LABEL (number);
+ }
+ else
+ {
+ is_long = 0; /* This is no wide-char string. */
+ goto LABEL (print_string);
+ }
+
+LABEL (form_character):
+ /* Character. */
+ if (is_long)
+ goto LABEL (form_wcharacter);
+ --width; /* Account for the character itself. */
+ if (!left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+#ifdef COMPILE_WPRINTF
+ __wprintf_buffer_putc (buf, __btowc ((unsigned char) /* Promoted. */
+ process_arg_int ()));
+#else
+ __printf_buffer_putc (buf, (unsigned char) /* Promoted. */
+ process_arg_int ());
+#endif
+ if (left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ break;
+
+LABEL (form_string):
+ {
+ size_t len;
+
+ /* The string argument could in fact be `char *' or `wchar_t *'.
+ But this should not make a difference here. */
+#ifdef COMPILE_WPRINTF
+ string = (CHAR_T *) process_arg_wstring ();
+#else
+ string = (CHAR_T *) process_arg_string ();
+#endif
+ /* Entry point for printing other strings. */
+ LABEL (print_string):
+
+ if (string == NULL)
+ {
+ /* Write "(null)" if there's space. */
+ if (prec == -1 || prec >= (int) array_length (null) - 1)
+ {
+ string = (CHAR_T *) null;
+ len = array_length (null) - 1;
+ }
+ else
+ {
+ string = (CHAR_T *) L"";
+ len = 0;
+ }
+ }
+ else if (!is_long && spec != L_('S'))
+ {
+#ifdef COMPILE_WPRINTF
+ outstring_converted_wide_string (buf, (const char *) string,
+ prec, width, left);
+ /* The padding has already been written. */
+ break;
+#else
+ if (prec != -1)
+ /* Search for the end of the string, but don't search past
+ the length (in bytes) specified by the precision. */
+ len = __strnlen (string, prec);
+ else
+ len = strlen (string);
+#endif
+ }
+ else
+ {
+#ifdef COMPILE_WPRINTF
+ if (prec != -1)
+ /* Search for the end of the string, but don't search past
+ the length specified by the precision. */
+ len = __wcsnlen (string, prec);
+ else
+ len = __wcslen (string);
+#else
+ outstring_converted_wide_string (buf, (const wchar_t *) string,
+ prec, width, left);
+ /* The padding has already been written. */
+ break;
+#endif
+ }
+
+ if ((width -= len) < 0)
+ {
+ Xprintf_buffer_write (buf, string, len);
+ break;
+ }
+
+ if (!left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ Xprintf_buffer_write (buf, string, len);
+ if (left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ }
+ break;
+
+#ifdef COMPILE_WPRINTF
+LABEL (form_wcharacter):
+ {
+ /* Wide character. */
+ --width;
+ if (!left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ Xprintf_buffer_putc (buf, process_arg_wchar_t ());
+ if (left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ }
+ break;
+
+#else /* !COMPILE_WPRINTF */
+LABEL (form_wcharacter):
+ {
+ /* Wide character. */
+ char wcbuf[MB_LEN_MAX];
+ mbstate_t mbstate;
+ size_t len;
+
+ memset (&mbstate, '\0', sizeof (mbstate_t));
+ len = __wcrtomb (wcbuf, process_arg_wchar_t (), &mbstate);
+ if (len == (size_t) -1)
+ {
+ /* Something went wrong during the conversion. Bail out. */
+ __printf_buffer_mark_failed (buf);
+ goto all_done;
+ }
+ width -= len;
+ if (!left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ Xprintf_buffer_write (buf, wcbuf, len);
+ if (left)
+ Xprintf_buffer_pad (buf, L_(' '), width);
+ }
+ break;
+#endif /* !COMPILE_WPRINTF */
+}
Radix cross Linux Toolchains
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