diff options
Diffstat (limited to 'stdio-common/vfscanf.c')
| -rw-r--r-- | stdio-common/vfscanf.c | 3042 |
1 files changed, 1 insertions, 3041 deletions
diff --git a/stdio-common/vfscanf.c b/stdio-common/vfscanf.c index 1ce836a324..5eedca8340 100644 --- a/stdio-common/vfscanf.c +++ b/stdio-common/vfscanf.c @@ -15,3053 +15,13 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <assert.h> -#include <errno.h> -#include <limits.h> -#include <ctype.h> -#include <stdarg.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <wchar.h> -#include <wctype.h> -#include <libc-diag.h> -#include <libc-lock.h> -#include <locale/localeinfo.h> -#include <scratch_buffer.h> - -#ifdef __GNUC__ -# define HAVE_LONGLONG -# define LONGLONG long long -#else -# define LONGLONG long -#endif - -/* Determine whether we have to handle `long long' at all. */ -#if LONG_MAX == LONG_LONG_MAX -# define need_longlong 0 -#else -# define need_longlong 1 -#endif - -/* Determine whether we have to handle `long'. */ -#if INT_MAX == LONG_MAX -# define need_long 0 -#else -# define need_long 1 -#endif - -/* Those are flags in the conversion format. */ -#define LONG 0x0001 /* l: long or double */ -#define LONGDBL 0x0002 /* L: long long or long double */ -#define SHORT 0x0004 /* h: short */ -#define SUPPRESS 0x0008 /* *: suppress assignment */ -#define POINTER 0x0010 /* weird %p pointer (`fake hex') */ -#define NOSKIP 0x0020 /* do not skip blanks */ -#define NUMBER_SIGNED 0x0040 /* signed integer */ -#define GROUP 0x0080 /* ': group numbers */ -#define GNU_MALLOC 0x0100 /* a: malloc strings */ -#define CHAR 0x0200 /* hh: char */ -#define I18N 0x0400 /* I: use locale's digits */ -#define HEXA_FLOAT 0x0800 /* hexadecimal float */ -#define READ_POINTER 0x1000 /* this is a pointer value */ -#define POSIX_MALLOC 0x2000 /* m: malloc strings */ -#define MALLOC (GNU_MALLOC | POSIX_MALLOC) - -#include <locale/localeinfo.h> #include <libioP.h> -#ifdef COMPILE_WSCANF -# define ungetc(c, s) ((void) (c == WEOF \ - || (--read_in, \ - _IO_sputbackwc (s, c)))) -# define ungetc_not_eof(c, s) ((void) (--read_in, \ - _IO_sputbackwc (s, c))) -# define inchar() (c == WEOF ? ((errno = inchar_errno), WEOF) \ - : ((c = _IO_getwc_unlocked (s)), \ - (void) (c != WEOF \ - ? ++read_in \ - : (size_t) (inchar_errno = errno)), c)) - -# define ISSPACE(Ch) iswspace (Ch) -# define ISDIGIT(Ch) iswdigit (Ch) -# define ISXDIGIT(Ch) iswxdigit (Ch) -# define TOLOWER(Ch) towlower (Ch) -# define ORIENT if (_IO_fwide (s, 1) != 1) return WEOF -# define __strtoll_internal __wcstoll_internal -# define __strtoull_internal __wcstoull_internal -# define __strtol_internal __wcstol_internal -# define __strtoul_internal __wcstoul_internal -# define __strtold_internal __wcstold_internal -# define __strtod_internal __wcstod_internal -# define __strtof_internal __wcstof_internal - -# define L_(Str) L##Str -# define CHAR_T wchar_t -# define UCHAR_T unsigned int -# define WINT_T wint_t -# undef EOF -# define EOF WEOF -#else -# define ungetc(c, s) ((void) ((int) c == EOF \ - || (--read_in, \ - _IO_sputbackc (s, (unsigned char) c)))) -# define ungetc_not_eof(c, s) ((void) (--read_in, \ - _IO_sputbackc (s, (unsigned char) c))) -# define inchar() (c == EOF ? ((errno = inchar_errno), EOF) \ - : ((c = _IO_getc_unlocked (s)), \ - (void) (c != EOF \ - ? ++read_in \ - : (size_t) (inchar_errno = errno)), c)) -# define ISSPACE(Ch) __isspace_l (Ch, loc) -# define ISDIGIT(Ch) __isdigit_l (Ch, loc) -# define ISXDIGIT(Ch) __isxdigit_l (Ch, loc) -# define TOLOWER(Ch) __tolower_l ((unsigned char) (Ch), loc) -# define ORIENT if (_IO_vtable_offset (s) == 0 \ - && _IO_fwide (s, -1) != -1) \ - return EOF - -# define L_(Str) Str -# define CHAR_T char -# define UCHAR_T unsigned char -# define WINT_T int -#endif - -#include "printf-parse.h" /* Use read_int. */ - -#define encode_error() do { \ - errval = 4; \ - __set_errno (EILSEQ); \ - goto errout; \ - } while (0) -#define conv_error() do { \ - errval = 2; \ - goto errout; \ - } while (0) -#define input_error() do { \ - errval = 1; \ - if (done == 0) done = EOF; \ - goto errout; \ - } while (0) -#define add_ptr_to_free(ptr) \ - do \ - { \ - if (ptrs_to_free == NULL \ - || ptrs_to_free->count == (sizeof (ptrs_to_free->ptrs) \ - / sizeof (ptrs_to_free->ptrs[0]))) \ - { \ - struct ptrs_to_free *new_ptrs = alloca (sizeof (*ptrs_to_free)); \ - new_ptrs->count = 0; \ - new_ptrs->next = ptrs_to_free; \ - ptrs_to_free = new_ptrs; \ - } \ - ptrs_to_free->ptrs[ptrs_to_free->count++] = (ptr); \ - } \ - while (0) -#define ARGCHECK(s, format) \ - do \ - { \ - /* Check file argument for consistence. */ \ - CHECK_FILE (s, EOF); \ - if (s->_flags & _IO_NO_READS) \ - { \ - __set_errno (EBADF); \ - return EOF; \ - } \ - else if (format == NULL) \ - { \ - __set_errno (EINVAL); \ - return EOF; \ - } \ - } while (0) -#define LOCK_STREAM(S) \ - __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile, (S)); \ - _IO_flockfile (S) -#define UNLOCK_STREAM(S) \ - _IO_funlockfile (S); \ - __libc_cleanup_region_end (0) - -struct ptrs_to_free -{ - size_t count; - struct ptrs_to_free *next; - char **ptrs[32]; -}; - -struct char_buffer { - CHAR_T *current; - CHAR_T *end; - struct scratch_buffer scratch; -}; - -/* Returns a pointer to the first CHAR_T object in the buffer. Only - valid if char_buffer_add (BUFFER, CH) has been called and - char_buffer_error (BUFFER) is false. */ -static inline CHAR_T * -char_buffer_start (const struct char_buffer *buffer) -{ - return (CHAR_T *) buffer->scratch.data; -} - -/* Returns the number of CHAR_T objects in the buffer. Only valid if - char_buffer_error (BUFFER) is false. */ -static inline size_t -char_buffer_size (const struct char_buffer *buffer) -{ - return buffer->current - char_buffer_start (buffer); -} - -/* Reinitializes BUFFER->current and BUFFER->end to cover the entire - scratch buffer. */ -static inline void -char_buffer_rewind (struct char_buffer *buffer) -{ - buffer->current = char_buffer_start (buffer); - buffer->end = buffer->current + buffer->scratch.length / sizeof (CHAR_T); -} - -/* Returns true if a previous call to char_buffer_add (BUFFER, CH) - failed. */ -static inline bool -char_buffer_error (const struct char_buffer *buffer) -{ - return __glibc_unlikely (buffer->current == NULL); -} - -/* Slow path for char_buffer_add. */ -static void -char_buffer_add_slow (struct char_buffer *buffer, CHAR_T ch) -{ - if (char_buffer_error (buffer)) - return; - size_t offset = buffer->end - (CHAR_T *) buffer->scratch.data; - if (!scratch_buffer_grow_preserve (&buffer->scratch)) - { - buffer->current = NULL; - buffer->end = NULL; - return; - } - char_buffer_rewind (buffer); - buffer->current += offset; - *buffer->current++ = ch; -} - -/* Adds CH to BUFFER. This function does not report any errors, check - for them with char_buffer_error. */ -static inline void -char_buffer_add (struct char_buffer *buffer, CHAR_T ch) - __attribute__ ((always_inline)); -static inline void -char_buffer_add (struct char_buffer *buffer, CHAR_T ch) -{ - if (__glibc_unlikely (buffer->current == buffer->end)) - char_buffer_add_slow (buffer, ch); - else - *buffer->current++ = ch; -} - -/* Read formatted input from S according to the format string - FORMAT, using the argument list in ARG. - Return the number of assignments made, or -1 for an input error. */ -#ifdef COMPILE_WSCANF -int -_IO_vfwscanf (FILE *s, const wchar_t *format, va_list argptr, - int *errp) -#else -int -_IO_vfscanf_internal (FILE *s, const char *format, va_list argptr, - int *errp) -#endif -{ - va_list arg; - const CHAR_T *f = format; - UCHAR_T fc; /* Current character of the format. */ - WINT_T done = 0; /* Assignments done. */ - size_t read_in = 0; /* Chars read in. */ - WINT_T c = 0; /* Last char read. */ - int width; /* Maximum field width. */ - int flags; /* Modifiers for current format element. */ - int errval = 0; -#ifndef COMPILE_WSCANF - locale_t loc = _NL_CURRENT_LOCALE; - struct __locale_data *const curctype = loc->__locales[LC_CTYPE]; -#endif - - /* Errno of last failed inchar call. */ - int inchar_errno = 0; - /* Status for reading F-P nums. */ - char got_digit, got_dot, got_e, got_sign; - /* If a [...] is a [^...]. */ - CHAR_T not_in; -#define exp_char not_in - /* Base for integral numbers. */ - int base; - /* Decimal point character. */ -#ifdef COMPILE_WSCANF - wint_t decimal; -#else - const char *decimal; -#endif - /* The thousands character of the current locale. */ -#ifdef COMPILE_WSCANF - wint_t thousands; -#else - const char *thousands; -#endif - struct ptrs_to_free *ptrs_to_free = NULL; - /* State for the conversions. */ - mbstate_t state; - /* Integral holding variables. */ - union - { - long long int q; - unsigned long long int uq; - long int l; - unsigned long int ul; - } num; - /* Character-buffer pointer. */ - char *str = NULL; - wchar_t *wstr = NULL; - char **strptr = NULL; - ssize_t strsize = 0; - /* We must not react on white spaces immediately because they can - possibly be matched even if in the input stream no character is - available anymore. */ - int skip_space = 0; - /* Workspace. */ - CHAR_T *tw; /* Temporary pointer. */ - struct char_buffer charbuf; - scratch_buffer_init (&charbuf.scratch); - -#ifdef __va_copy - __va_copy (arg, argptr); -#else - arg = (va_list) argptr; -#endif - -#ifdef ORIENT - ORIENT; -#endif - - ARGCHECK (s, format); - - { -#ifndef COMPILE_WSCANF - struct __locale_data *const curnumeric = loc->__locales[LC_NUMERIC]; -#endif - - /* Figure out the decimal point character. */ -#ifdef COMPILE_WSCANF - decimal = _NL_CURRENT_WORD (LC_NUMERIC, _NL_NUMERIC_DECIMAL_POINT_WC); -#else - decimal = curnumeric->values[_NL_ITEM_INDEX (DECIMAL_POINT)].string; -#endif - /* Figure out the thousands separator character. */ -#ifdef COMPILE_WSCANF - thousands = _NL_CURRENT_WORD (LC_NUMERIC, _NL_NUMERIC_THOUSANDS_SEP_WC); -#else - thousands = curnumeric->values[_NL_ITEM_INDEX (THOUSANDS_SEP)].string; - if (*thousands == '\0') - thousands = NULL; -#endif - } - - /* Lock the stream. */ - LOCK_STREAM (s); - - -#ifndef COMPILE_WSCANF - /* From now on we use `state' to convert the format string. */ - memset (&state, '\0', sizeof (state)); -#endif - - /* Run through the format string. */ - while (*f != '\0') - { - unsigned int argpos; - /* Extract the next argument, which is of type TYPE. - For a %N$... spec, this is the Nth argument from the beginning; - otherwise it is the next argument after the state now in ARG. */ -#ifdef __va_copy -# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \ - ({ unsigned int pos = argpos; \ - va_list arg; \ - __va_copy (arg, argptr); \ - while (--pos > 0) \ - (void) va_arg (arg, void *); \ - va_arg (arg, type); \ - })) -#else -# if 0 - /* XXX Possible optimization. */ -# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \ - ({ va_list arg = (va_list) argptr; \ - arg = (va_list) ((char *) arg \ - + (argpos - 1) \ - * __va_rounded_size (void *)); \ - va_arg (arg, type); \ - })) -# else -# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \ - ({ unsigned int pos = argpos; \ - va_list arg = (va_list) argptr; \ - while (--pos > 0) \ - (void) va_arg (arg, void *); \ - va_arg (arg, type); \ - })) -# endif -#endif - -#ifndef COMPILE_WSCANF - if (!isascii ((unsigned char) *f)) - { - /* Non-ASCII, may be a multibyte. */ - int len = __mbrlen (f, strlen (f), &state); - if (len > 0) - { - do - { - c = inchar (); - if (__glibc_unlikely (c == EOF)) - input_error (); - else if (c != (unsigned char) *f++) - { - ungetc_not_eof (c, s); - conv_error (); - } - } - while (--len > 0); - continue; - } - } -#endif - - fc = *f++; - if (fc != '%') - { - /* Remember to skip spaces. */ - if (ISSPACE (fc)) - { - skip_space = 1; - continue; - } - - /* Read a character. */ - c = inchar (); - - /* Characters other than format specs must just match. */ - if (__glibc_unlikely (c == EOF)) - input_error (); - - /* We saw white space char as the last character in the format - string. Now it's time to skip all leading white space. */ - if (skip_space) - { - while (ISSPACE (c)) - if (__glibc_unlikely (inchar () == EOF)) - input_error (); - skip_space = 0; - } - - if (__glibc_unlikely (c != fc)) - { - ungetc (c, s); - conv_error (); - } - - continue; - } - - /* This is the start of the conversion string. */ - flags = 0; - - /* Initialize state of modifiers. */ - argpos = 0; - - /* Prepare temporary buffer. */ - char_buffer_rewind (&charbuf); - - /* Check for a positional parameter specification. */ - if (ISDIGIT ((UCHAR_T) *f)) - { - argpos = read_int ((const UCHAR_T **) &f); - if (*f == L_('$')) - ++f; - else - { - /* Oops; that was actually the field width. */ - width = argpos; - argpos = 0; - goto got_width; - } - } - - /* Check for the assignment-suppressing, the number grouping flag, - and the signal to use the locale's digit representation. */ - while (*f == L_('*') || *f == L_('\'') || *f == L_('I')) - switch (*f++) - { - case L_('*'): - flags |= SUPPRESS; - break; - case L_('\''): -#ifdef COMPILE_WSCANF - if (thousands != L'\0') -#else - if (thousands != NULL) -#endif - flags |= GROUP; - break; - case L_('I'): - flags |= I18N; - break; - } - - /* Find the maximum field width. */ - width = 0; - if (ISDIGIT ((UCHAR_T) *f)) - width = read_int ((const UCHAR_T **) &f); - got_width: - if (width == 0) - width = -1; - - /* Check for type modifiers. */ - switch (*f++) - { - case L_('h'): - /* ints are short ints or chars. */ - if (*f == L_('h')) - { - ++f; - flags |= CHAR; - } - else - flags |= SHORT; - break; - case L_('l'): - if (*f == L_('l')) - { - /* A double `l' is equivalent to an `L'. */ - ++f; - flags |= LONGDBL | LONG; - } - else - /* ints are long ints. */ - flags |= LONG; - break; - case L_('q'): - case L_('L'): - /* doubles are long doubles, and ints are long long ints. */ - flags |= LONGDBL | LONG; - break; - case L_('a'): - /* The `a' is used as a flag only if followed by `s', `S' or - `['. */ - if (*f != L_('s') && *f != L_('S') && *f != L_('[')) - { - --f; - break; - } - /* In __isoc99_*scanf %as, %aS and %a[ extension is not - supported at all. */ - if (s->_flags2 & _IO_FLAGS2_SCANF_STD) - { - --f; - break; - } - /* String conversions (%s, %[) take a `char **' - arg and fill it in with a malloc'd pointer. */ - flags |= GNU_MALLOC; - break; - case L_('m'): - flags |= POSIX_MALLOC; - if (*f == L_('l')) - { - ++f; - flags |= LONG; - } - break; - case L_('z'): - if (need_longlong && sizeof (size_t) > sizeof (unsigned long int)) - flags |= LONGDBL; - else if (sizeof (size_t) > sizeof (unsigned int)) - flags |= LONG; - break; - case L_('j'): - if (need_longlong && sizeof (uintmax_t) > sizeof (unsigned long int)) - flags |= LONGDBL; - else if (sizeof (uintmax_t) > sizeof (unsigned int)) - flags |= LONG; - break; - case L_('t'): - if (need_longlong && sizeof (ptrdiff_t) > sizeof (long int)) - flags |= LONGDBL; - else if (sizeof (ptrdiff_t) > sizeof (int)) - flags |= LONG; - break; - default: - /* Not a recognized modifier. Backup. */ - --f; - break; - } - - /* End of the format string? */ - if (__glibc_unlikely (*f == L_('\0'))) - conv_error (); - - /* Find the conversion specifier. */ - fc = *f++; - if (skip_space || (fc != L_('[') && fc != L_('c') - && fc != L_('C') && fc != L_('n'))) - { - /* Eat whitespace. */ - int save_errno = errno; - __set_errno (0); - do - /* We add the additional test for EOF here since otherwise - inchar will restore the old errno value which might be - EINTR but does not indicate an interrupt since nothing - was read at this time. */ - if (__builtin_expect ((c == EOF || inchar () == EOF) - && errno == EINTR, 0)) - input_error (); - while (ISSPACE (c)); - __set_errno (save_errno); - ungetc (c, s); - skip_space = 0; - } - - switch (fc) - { - case L_('%'): /* Must match a literal '%'. */ - c = inchar (); - if (__glibc_unlikely (c == EOF)) - input_error (); - if (__glibc_unlikely (c != fc)) - { - ungetc_not_eof (c, s); - conv_error (); - } - break; - - case L_('n'): /* Answer number of assignments done. */ - /* Corrigendum 1 to ISO C 1990 describes the allowed flags - with the 'n' conversion specifier. */ - if (!(flags & SUPPRESS)) - { - /* Don't count the read-ahead. */ - if (need_longlong && (flags & LONGDBL)) - *ARG (long long int *) = read_in; - else if (need_long && (flags & LONG)) - *ARG (long int *) = read_in; - else if (flags & SHORT) - *ARG (short int *) = read_in; - else if (!(flags & CHAR)) - *ARG (int *) = read_in; - else - *ARG (char *) = read_in; - -#ifdef NO_BUG_IN_ISO_C_CORRIGENDUM_1 - /* We have a severe problem here. The ISO C standard - contradicts itself in explaining the effect of the %n - format in `scanf'. While in ISO C:1990 and the ISO C - Amendement 1:1995 the result is described as - - Execution of a %n directive does not effect the - assignment count returned at the completion of - execution of the f(w)scanf function. - - in ISO C Corrigendum 1:1994 the following was added: - - Subclause 7.9.6.2 - Add the following fourth example: - In: - #include <stdio.h> - int d1, d2, n1, n2, i; - i = sscanf("123", "%d%n%n%d", &d1, &n1, &n2, &d2); - the value 123 is assigned to d1 and the value3 to n1. - Because %n can never get an input failure the value - of 3 is also assigned to n2. The value of d2 is not - affected. The value 3 is assigned to i. - - We go for now with the historically correct code from ISO C, - i.e., we don't count the %n assignments. When it ever - should proof to be wrong just remove the #ifdef above. */ - ++done; -#endif - } - break; - - case L_('c'): /* Match characters. */ - if ((flags & LONG) == 0) - { - if (width == -1) - width = 1; - -#define STRING_ARG(Str, Type, Width) \ - do if (!(flags & SUPPRESS)) \ - { \ - if (flags & MALLOC) \ - { \ - /* The string is to be stored in a malloc'd buffer. */ \ - /* For %mS using char ** is actually wrong, but \ - shouldn't make a difference on any arch glibc \ - supports and would unnecessarily complicate \ - things. */ \ - strptr = ARG (char **); \ - if (strptr == NULL) \ - conv_error (); \ - /* Allocate an initial buffer. */ \ - strsize = Width; \ - *strptr = (char *) malloc (strsize * sizeof (Type)); \ - Str = (Type *) *strptr; \ - if (Str != NULL) \ - add_ptr_to_free (strptr); \ - else if (flags & POSIX_MALLOC) \ - { \ - done = EOF; \ - goto errout; \ - } \ - } \ - else \ - Str = ARG (Type *); \ - if (Str == NULL) \ - conv_error (); \ - } while (0) -#ifdef COMPILE_WSCANF - STRING_ARG (str, char, 100); -#else - STRING_ARG (str, char, (width > 1024 ? 1024 : width)); -#endif - - c = inchar (); - if (__glibc_unlikely (c == EOF)) - input_error (); - -#ifdef COMPILE_WSCANF - /* We have to convert the wide character(s) into multibyte - characters and store the result. */ - memset (&state, '\0', sizeof (state)); - - do - { - size_t n; - - if (!(flags & SUPPRESS) && (flags & POSIX_MALLOC) - && *strptr + strsize - str <= MB_LEN_MAX) - { - /* We have to enlarge the buffer if the `m' flag - was given. */ - size_t strleng = str - *strptr; - char *newstr; - - newstr = (char *) realloc (*strptr, strsize * 2); - if (newstr == NULL) - { - /* Can't allocate that much. Last-ditch effort. */ - newstr = (char *) realloc (*strptr, - strleng + MB_LEN_MAX); - if (newstr == NULL) - { - /* c can't have `a' flag, only `m'. */ - done = EOF; - goto errout; - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize = strleng + MB_LEN_MAX; - } - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize *= 2; - } - } - - n = __wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state); - if (__glibc_unlikely (n == (size_t) -1)) - /* No valid wide character. */ - input_error (); - - /* Increment the output pointer. Even if we don't - write anything. */ - str += n; - } - while (--width > 0 && inchar () != EOF); -#else - if (!(flags & SUPPRESS)) - { - do - { - if ((flags & MALLOC) - && (char *) str == *strptr + strsize) - { - /* Enlarge the buffer. */ - size_t newsize - = strsize - + (strsize >= width ? width - 1 : strsize); - - str = (char *) realloc (*strptr, newsize); - if (str == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - str = (char *) realloc (*strptr, strsize + 1); - if (str == NULL) - { - /* c can't have `a' flag, only `m'. */ - done = EOF; - goto errout; - } - else - { - *strptr = (char *) str; - str += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) str; - str += strsize; - strsize = newsize; - } - } - *str++ = c; - } - while (--width > 0 && inchar () != EOF); - } - else - while (--width > 0 && inchar () != EOF); -#endif - - if (!(flags & SUPPRESS)) - { - if ((flags & MALLOC) && str - *strptr != strsize) - { - char *cp = (char *) realloc (*strptr, str - *strptr); - if (cp != NULL) - *strptr = cp; - } - strptr = NULL; - ++done; - } - - break; - } - /* FALLTHROUGH */ - case L_('C'): - if (width == -1) - width = 1; - - STRING_ARG (wstr, wchar_t, (width > 1024 ? 1024 : width)); - - c = inchar (); - if (__glibc_unlikely (c == EOF)) - input_error (); - -#ifdef COMPILE_WSCANF - /* Just store the incoming wide characters. */ - if (!(flags & SUPPRESS)) - { - do - { - if ((flags & MALLOC) - && wstr == (wchar_t *) *strptr + strsize) - { - size_t newsize - = strsize + (strsize > width ? width - 1 : strsize); - /* Enlarge the buffer. */ - wstr = (wchar_t *) realloc (*strptr, - newsize * sizeof (wchar_t)); - if (wstr == NULL) - { - /* Can't allocate that much. Last-ditch effort. */ - wstr = (wchar_t *) realloc (*strptr, - (strsize + 1) - * sizeof (wchar_t)); - if (wstr == NULL) - { - /* C or lc can't have `a' flag, only `m' - flag. */ - done = EOF; - goto errout; - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - strsize = newsize; - } - } - *wstr++ = c; - } - while (--width > 0 && inchar () != EOF); - } - else - while (--width > 0 && inchar () != EOF); -#else - { - /* We have to convert the multibyte input sequence to wide - characters. */ - char buf[1]; - mbstate_t cstate; - - memset (&cstate, '\0', sizeof (cstate)); - - do - { - /* This is what we present the mbrtowc function first. */ - buf[0] = c; - - if (!(flags & SUPPRESS) && (flags & MALLOC) - && wstr == (wchar_t *) *strptr + strsize) - { - size_t newsize - = strsize + (strsize > width ? width - 1 : strsize); - /* Enlarge the buffer. */ - wstr = (wchar_t *) realloc (*strptr, - newsize * sizeof (wchar_t)); - if (wstr == NULL) - { - /* Can't allocate that much. Last-ditch effort. */ - wstr = (wchar_t *) realloc (*strptr, - ((strsize + 1) - * sizeof (wchar_t))); - if (wstr == NULL) - { - /* C or lc can't have `a' flag, only `m' flag. */ - done = EOF; - goto errout; - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - strsize = newsize; - } - } - - while (1) - { - size_t n; - - n = __mbrtowc (!(flags & SUPPRESS) ? wstr : NULL, - buf, 1, &cstate); - - if (n == (size_t) -2) - { - /* Possibly correct character, just not enough - input. */ - if (__glibc_unlikely (inchar () == EOF)) - encode_error (); - - buf[0] = c; - continue; - } - - if (__glibc_unlikely (n != 1)) - encode_error (); - - /* We have a match. */ - break; - } - - /* Advance the result pointer. */ - ++wstr; - } - while (--width > 0 && inchar () != EOF); - } -#endif - - if (!(flags & SUPPRESS)) - { - if ((flags & MALLOC) && wstr - (wchar_t *) *strptr != strsize) - { - wchar_t *cp = (wchar_t *) realloc (*strptr, - ((wstr - - (wchar_t *) *strptr) - * sizeof (wchar_t))); - if (cp != NULL) - *strptr = (char *) cp; - } - strptr = NULL; - - ++done; - } - - break; - - case L_('s'): /* Read a string. */ - if (!(flags & LONG)) - { - STRING_ARG (str, char, 100); - - c = inchar (); - if (__glibc_unlikely (c == EOF)) - input_error (); - -#ifdef COMPILE_WSCANF - memset (&state, '\0', sizeof (state)); -#endif - - do - { - if (ISSPACE (c)) - { - ungetc_not_eof (c, s); - break; - } - -#ifdef COMPILE_WSCANF - /* This is quite complicated. We have to convert the - wide characters into multibyte characters and then - store them. */ - { - size_t n; - - if (!(flags & SUPPRESS) && (flags & MALLOC) - && *strptr + strsize - str <= MB_LEN_MAX) - { - /* We have to enlarge the buffer if the `a' or `m' - flag was given. */ - size_t strleng = str - *strptr; - char *newstr; - - newstr = (char *) realloc (*strptr, strsize * 2); - if (newstr == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - newstr = (char *) realloc (*strptr, - strleng + MB_LEN_MAX); - if (newstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the - string and stop converting, - so at least we don't skip any input. */ - ((char *) (*strptr))[strleng] = '\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize = strleng + MB_LEN_MAX; - } - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize *= 2; - } - } - - n = __wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, - &state); - if (__glibc_unlikely (n == (size_t) -1)) - encode_error (); - - assert (n <= MB_LEN_MAX); - str += n; - } -#else - /* This is easy. */ - if (!(flags & SUPPRESS)) - { - *str++ = c; - if ((flags & MALLOC) - && (char *) str == *strptr + strsize) - { - /* Enlarge the buffer. */ - str = (char *) realloc (*strptr, 2 * strsize); - if (str == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - str = (char *) realloc (*strptr, strsize + 1); - if (str == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the - string and stop converting, - so at least we don't skip any input. */ - ((char *) (*strptr))[strsize - 1] = '\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = (char *) str; - str += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) str; - str += strsize; - strsize *= 2; - } - } - } -#endif - } - while ((width <= 0 || --width > 0) && inchar () != EOF); - - if (!(flags & SUPPRESS)) - { -#ifdef COMPILE_WSCANF - /* We have to emit the code to get into the initial - state. */ - char buf[MB_LEN_MAX]; - size_t n = __wcrtomb (buf, L'\0', &state); - if (n > 0 && (flags & MALLOC) - && str + n >= *strptr + strsize) - { - /* Enlarge the buffer. */ - size_t strleng = str - *strptr; - char *newstr; - - newstr = (char *) realloc (*strptr, strleng + n + 1); - if (newstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the string - and stop converting, so at least we don't - skip any input. */ - ((char *) (*strptr))[strleng] = '\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize = strleng + n + 1; - } - } - - str = __mempcpy (str, buf, n); -#endif - *str++ = '\0'; - - if ((flags & MALLOC) && str - *strptr != strsize) - { - char *cp = (char *) realloc (*strptr, str - *strptr); - if (cp != NULL) - *strptr = cp; - } - strptr = NULL; - - ++done; - } - break; - } - /* FALLTHROUGH */ - - case L_('S'): - { -#ifndef COMPILE_WSCANF - mbstate_t cstate; -#endif - - /* Wide character string. */ - STRING_ARG (wstr, wchar_t, 100); - - c = inchar (); - if (__builtin_expect (c == EOF, 0)) - input_error (); - -#ifndef COMPILE_WSCANF - memset (&cstate, '\0', sizeof (cstate)); -#endif - - do - { - if (ISSPACE (c)) - { - ungetc_not_eof (c, s); - break; - } - -#ifdef COMPILE_WSCANF - /* This is easy. */ - if (!(flags & SUPPRESS)) - { - *wstr++ = c; - if ((flags & MALLOC) - && wstr == (wchar_t *) *strptr + strsize) - { - /* Enlarge the buffer. */ - wstr = (wchar_t *) realloc (*strptr, - (2 * strsize) - * sizeof (wchar_t)); - if (wstr == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - wstr = (wchar_t *) realloc (*strptr, - (strsize + 1) - * sizeof (wchar_t)); - if (wstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the string - and stop converting, so at least we don't - skip any input. */ - ((wchar_t *) (*strptr))[strsize - 1] = L'\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - strsize *= 2; - } - } - } -#else - { - char buf[1]; - - buf[0] = c; - - while (1) - { - size_t n; - - n = __mbrtowc (!(flags & SUPPRESS) ? wstr : NULL, - buf, 1, &cstate); - - if (n == (size_t) -2) - { - /* Possibly correct character, just not enough - input. */ - if (__glibc_unlikely (inchar () == EOF)) - encode_error (); - - buf[0] = c; - continue; - } - - if (__glibc_unlikely (n != 1)) - encode_error (); - - /* We have a match. */ - ++wstr; - break; - } - - if (!(flags & SUPPRESS) && (flags & MALLOC) - && wstr == (wchar_t *) *strptr + strsize) - { - /* Enlarge the buffer. */ - wstr = (wchar_t *) realloc (*strptr, - (2 * strsize - * sizeof (wchar_t))); - if (wstr == NULL) - { - /* Can't allocate that much. Last-ditch effort. */ - wstr = (wchar_t *) realloc (*strptr, - ((strsize + 1) - * sizeof (wchar_t))); - if (wstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the - string and stop converting, so at - least we don't skip any input. */ - ((wchar_t *) (*strptr))[strsize - 1] = L'\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - strsize *= 2; - } - } - } -#endif - } - while ((width <= 0 || --width > 0) && inchar () != EOF); - - if (!(flags & SUPPRESS)) - { - *wstr++ = L'\0'; - - if ((flags & MALLOC) && wstr - (wchar_t *) *strptr != strsize) - { - wchar_t *cp = (wchar_t *) realloc (*strptr, - ((wstr - - (wchar_t *) *strptr) - * sizeof(wchar_t))); - if (cp != NULL) - *strptr = (char *) cp; - } - strptr = NULL; - - ++done; - } - } - break; - - case L_('x'): /* Hexadecimal integer. */ - case L_('X'): /* Ditto. */ - base = 16; - goto number; - - case L_('o'): /* Octal integer. */ - base = 8; - goto number; - - case L_('u'): /* Unsigned decimal integer. */ - base = 10; - goto number; - - case L_('d'): /* Signed decimal integer. */ - base = 10; - flags |= NUMBER_SIGNED; - goto number; - - case L_('i'): /* Generic number. */ - base = 0; - flags |= NUMBER_SIGNED; - - number: - c = inchar (); - if (__glibc_unlikely (c == EOF)) - input_error (); - - /* Check for a sign. */ - if (c == L_('-') || c == L_('+')) - { - char_buffer_add (&charbuf, c); - if (width > 0) - --width; - c = inchar (); - } - - /* Look for a leading indication of base. */ - if (width != 0 && c == L_('0')) - { - if (width > 0) - --width; - - char_buffer_add (&charbuf, c); - c = inchar (); - - if (width != 0 && TOLOWER (c) == L_('x')) - { - if (base == 0) - base = 16; - if (base == 16) - { - if (width > 0) - --width; - c = inchar (); - } - } - else if (base == 0) - base = 8; - } - - if (base == 0) - base = 10; - - if (base == 10 && __builtin_expect ((flags & I18N) != 0, 0)) - { - int from_level; - int to_level; - int level; -#ifdef COMPILE_WSCANF - const wchar_t *wcdigits[10]; - const wchar_t *wcdigits_extended[10]; -#else - const char *mbdigits[10]; - const char *mbdigits_extended[10]; -#endif - /* "to_inpunct" is a map from ASCII digits to their - equivalent in locale. This is defined for locales - which use an extra digits set. */ - wctrans_t map = __wctrans ("to_inpunct"); - int n; - - from_level = 0; -#ifdef COMPILE_WSCANF - to_level = _NL_CURRENT_WORD (LC_CTYPE, - _NL_CTYPE_INDIGITS_WC_LEN) - 1; -#else - to_level = (uint32_t) curctype->values[_NL_ITEM_INDEX (_NL_CTYPE_INDIGITS_MB_LEN)].word - 1; -#endif - - /* Get the alternative digit forms if there are any. */ - if (__glibc_unlikely (map != NULL)) - { - /* Adding new level for extra digits set in locale file. */ - ++to_level; - - for (n = 0; n < 10; ++n) - { -#ifdef COMPILE_WSCANF - wcdigits[n] = (const wchar_t *) - _NL_CURRENT (LC_CTYPE, _NL_CTYPE_INDIGITS0_WC + n); - - wchar_t *wc_extended = (wchar_t *) - alloca ((to_level + 2) * sizeof (wchar_t)); - __wmemcpy (wc_extended, wcdigits[n], to_level); - wc_extended[to_level] = __towctrans (L'0' + n, map); - wc_extended[to_level + 1] = '\0'; - wcdigits_extended[n] = wc_extended; -#else - mbdigits[n] - = curctype->values[_NL_CTYPE_INDIGITS0_MB + n].string; - - /* Get the equivalent wide char in map. */ - wint_t extra_wcdigit = __towctrans (L'0' + n, map); - - /* Convert it to multibyte representation. */ - mbstate_t state; - memset (&state, '\0', sizeof (state)); - - char extra_mbdigit[MB_LEN_MAX]; - size_t mblen - = __wcrtomb (extra_mbdigit, extra_wcdigit, &state); - - if (mblen == (size_t) -1) - { - /* Ignore this new level. */ - map = NULL; - break; - } - - /* Calculate the length of mbdigits[n]. */ - const char *last_char = mbdigits[n]; - for (level = 0; level < to_level; ++level) - last_char = strchr (last_char, '\0') + 1; - - size_t mbdigits_len = last_char - mbdigits[n]; - - /* Allocate memory for extended multibyte digit. */ - char *mb_extended; - mb_extended = (char *) alloca (mbdigits_len + mblen + 1); - - /* And get the mbdigits + extra_digit string. */ - *(char *) __mempcpy (__mempcpy (mb_extended, mbdigits[n], - mbdigits_len), - extra_mbdigit, mblen) = '\0'; - mbdigits_extended[n] = mb_extended; -#endif - } - } - - /* Read the number into workspace. */ - while (c != EOF && width != 0) - { - /* In this round we get the pointer to the digit strings - and also perform the first round of comparisons. */ - for (n = 0; n < 10; ++n) - { - /* Get the string for the digits with value N. */ -#ifdef COMPILE_WSCANF - - /* wcdigits_extended[] is fully set in the loop - above, but the test for "map != NULL" is done - inside the loop here and outside the loop there. */ - DIAG_PUSH_NEEDS_COMMENT; - DIAG_IGNORE_NEEDS_COMMENT (4.7, "-Wmaybe-uninitialized"); - - if (__glibc_unlikely (map != NULL)) - wcdigits[n] = wcdigits_extended[n]; - else - wcdigits[n] = (const wchar_t *) - _NL_CURRENT (LC_CTYPE, _NL_CTYPE_INDIGITS0_WC + n); - wcdigits[n] += from_level; - - DIAG_POP_NEEDS_COMMENT; - - if (c == (wint_t) *wcdigits[n]) - { - to_level = from_level; - break; - } - - /* Advance the pointer to the next string. */ - ++wcdigits[n]; -#else - const char *cmpp; - int avail = width > 0 ? width : INT_MAX; - - if (__glibc_unlikely (map != NULL)) - mbdigits[n] = mbdigits_extended[n]; - else - mbdigits[n] - = curctype->values[_NL_CTYPE_INDIGITS0_MB + n].string; - - for (level = 0; level < from_level; level++) - mbdigits[n] = strchr (mbdigits[n], '\0') + 1; - - cmpp = mbdigits[n]; - while ((unsigned char) *cmpp == c && avail >= 0) - { - if (*++cmpp == '\0') - break; - else - { - if (avail == 0 || inchar () == EOF) - break; - --avail; - } - } - - if (*cmpp == '\0') - { - if (width > 0) - width = avail; - to_level = from_level; - break; - } - - /* We are pushing all read characters back. */ - if (cmpp > mbdigits[n]) - { - ungetc (c, s); - while (--cmpp > mbdigits[n]) - ungetc_not_eof ((unsigned char) *cmpp, s); - c = (unsigned char) *cmpp; - } - - /* Advance the pointer to the next string. */ - mbdigits[n] = strchr (mbdigits[n], '\0') + 1; -#endif - } - - if (n == 10) - { - /* Have not yet found the digit. */ - for (level = from_level + 1; level <= to_level; ++level) - { - /* Search all ten digits of this level. */ - for (n = 0; n < 10; ++n) - { -#ifdef COMPILE_WSCANF - if (c == (wint_t) *wcdigits[n]) - break; - - /* Advance the pointer to the next string. */ - ++wcdigits[n]; -#else - const char *cmpp; - int avail = width > 0 ? width : INT_MAX; - - cmpp = mbdigits[n]; - while ((unsigned char) *cmpp == c && avail >= 0) - { - if (*++cmpp == '\0') - break; - else - { - if (avail == 0 || inchar () == EOF) - break; - --avail; - } - } - - if (*cmpp == '\0') - { - if (width > 0) - width = avail; - break; - } - - /* We are pushing all read characters back. */ - if (cmpp > mbdigits[n]) - { - ungetc (c, s); - while (--cmpp > mbdigits[n]) - ungetc_not_eof ((unsigned char) *cmpp, s); - c = (unsigned char) *cmpp; - } - - /* Advance the pointer to the next string. */ - mbdigits[n] = strchr (mbdigits[n], '\0') + 1; -#endif - } - - if (n < 10) - { - /* Found it. */ - from_level = level; - to_level = level; - break; - } - } - } - - if (n < 10) - c = L_('0') + n; - else if (flags & GROUP) - { - /* Try matching against the thousands separator. */ -#ifdef COMPILE_WSCANF - if (c != thousands) - break; -#else - const char *cmpp = thousands; - int avail = width > 0 ? width : INT_MAX; - - while ((unsigned char) *cmpp == c && avail >= 0) - { - char_buffer_add (&charbuf, c); - if (*++cmpp == '\0') - break; - else - { - if (avail == 0 || inchar () == EOF) - break; - --avail; - } - } - - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - - if (*cmpp != '\0') - { - /* We are pushing all read characters back. */ - if (cmpp > thousands) - { - charbuf.current -= cmpp - thousands; - ungetc (c, s); - while (--cmpp > thousands) - ungetc_not_eof ((unsigned char) *cmpp, s); - c = (unsigned char) *cmpp; - } - break; - } - - if (width > 0) - width = avail; - - /* The last thousands character will be added back by - the char_buffer_add below. */ - --charbuf.current; -#endif - } - else - break; - - char_buffer_add (&charbuf, c); - if (width > 0) - --width; - - c = inchar (); - } - } - else - /* Read the number into workspace. */ - while (c != EOF && width != 0) - { - if (base == 16) - { - if (!ISXDIGIT (c)) - break; - } - else if (!ISDIGIT (c) || (int) (c - L_('0')) >= base) - { - if (base == 10 && (flags & GROUP)) - { - /* Try matching against the thousands separator. */ -#ifdef COMPILE_WSCANF - if (c != thousands) - break; -#else - const char *cmpp = thousands; - int avail = width > 0 ? width : INT_MAX; - - while ((unsigned char) *cmpp == c && avail >= 0) - { - char_buffer_add (&charbuf, c); - if (*++cmpp == '\0') - break; - else - { - if (avail == 0 || inchar () == EOF) - break; - --avail; - } - } - - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - - if (*cmpp != '\0') - { - /* We are pushing all read characters back. */ - if (cmpp > thousands) - { - charbuf.current -= cmpp - thousands; - ungetc (c, s); - while (--cmpp > thousands) - ungetc_not_eof ((unsigned char) *cmpp, s); - c = (unsigned char) *cmpp; - } - break; - } - - if (width > 0) - width = avail; - - /* The last thousands character will be added back by - the char_buffer_add below. */ - --charbuf.current; -#endif - } - else - break; - } - char_buffer_add (&charbuf, c); - if (width > 0) - --width; - - c = inchar (); - } - - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - - if (char_buffer_size (&charbuf) == 0 - || (char_buffer_size (&charbuf) == 1 - && (char_buffer_start (&charbuf)[0] == L_('+') - || char_buffer_start (&charbuf)[0] == L_('-')))) - { - /* There was no number. If we are supposed to read a pointer - we must recognize "(nil)" as well. */ - if (__builtin_expect (char_buffer_size (&charbuf) == 0 - && (flags & READ_POINTER) - && (width < 0 || width >= 5) - && c == '(' - && TOLOWER (inchar ()) == L_('n') - && TOLOWER (inchar ()) == L_('i') - && TOLOWER (inchar ()) == L_('l') - && inchar () == L_(')'), 1)) - /* We must produce the value of a NULL pointer. A single - '0' digit is enough. */ - char_buffer_add (&charbuf, L_('0')); - else - { - /* The last read character is not part of the number - anymore. */ - ungetc (c, s); - - conv_error (); - } - } - else - /* The just read character is not part of the number anymore. */ - ungetc (c, s); - - /* Convert the number. */ - char_buffer_add (&charbuf, L_('\0')); - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - if (need_longlong && (flags & LONGDBL)) - { - if (flags & NUMBER_SIGNED) - num.q = __strtoll_internal - (char_buffer_start (&charbuf), &tw, base, flags & GROUP); - else - num.uq = __strtoull_internal - (char_buffer_start (&charbuf), &tw, base, flags & GROUP); - } - else - { - if (flags & NUMBER_SIGNED) - num.l = __strtol_internal - (char_buffer_start (&charbuf), &tw, base, flags & GROUP); - else - num.ul = __strtoul_internal - (char_buffer_start (&charbuf), &tw, base, flags & GROUP); - } - if (__glibc_unlikely (char_buffer_start (&charbuf) == tw)) - conv_error (); - - if (!(flags & SUPPRESS)) - { - if (flags & NUMBER_SIGNED) - { - if (need_longlong && (flags & LONGDBL)) - *ARG (LONGLONG int *) = num.q; - else if (need_long && (flags & LONG)) - *ARG (long int *) = num.l; - else if (flags & SHORT) - *ARG (short int *) = (short int) num.l; - else if (!(flags & CHAR)) - *ARG (int *) = (int) num.l; - else - *ARG (signed char *) = (signed char) num.ul; - } - else - { - if (need_longlong && (flags & LONGDBL)) - *ARG (unsigned LONGLONG int *) = num.uq; - else if (need_long && (flags & LONG)) - *ARG (unsigned long int *) = num.ul; - else if (flags & SHORT) - *ARG (unsigned short int *) - = (unsigned short int) num.ul; - else if (!(flags & CHAR)) - *ARG (unsigned int *) = (unsigned int) num.ul; - else - *ARG (unsigned char *) = (unsigned char) num.ul; - } - ++done; - } - break; - - case L_('e'): /* Floating-point numbers. */ - case L_('E'): - case L_('f'): - case L_('F'): - case L_('g'): - case L_('G'): - case L_('a'): - case L_('A'): - c = inchar (); - if (width > 0) - --width; - if (__glibc_unlikely (c == EOF)) - input_error (); - - got_digit = got_dot = got_e = got_sign = 0; - - /* Check for a sign. */ - if (c == L_('-') || c == L_('+')) - { - got_sign = 1; - char_buffer_add (&charbuf, c); - if (__glibc_unlikely (width == 0 || inchar () == EOF)) - /* EOF is only an input error before we read any chars. */ - conv_error (); - if (width > 0) - --width; - } - - /* Take care for the special arguments "nan" and "inf". */ - if (TOLOWER (c) == L_('n')) - { - /* Maybe "nan". */ - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('a'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('n'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - /* It is "nan". */ - goto scan_float; - } - else if (TOLOWER (c) == L_('i')) - { - /* Maybe "inf" or "infinity". */ - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('n'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('f'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - /* It is as least "inf". */ - if (width != 0 && inchar () != EOF) - { - if (TOLOWER (c) == L_('i')) - { - if (width > 0) - --width; - /* Now we have to read the rest as well. */ - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('n'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('i'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('t'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - if (__builtin_expect (width == 0 - || inchar () == EOF - || TOLOWER (c) != L_('y'), 0)) - conv_error (); - if (width > 0) - --width; - char_buffer_add (&charbuf, c); - } - else - /* Never mind. */ - ungetc (c, s); - } - goto scan_float; - } - - exp_char = L_('e'); - if (width != 0 && c == L_('0')) - { - char_buffer_add (&charbuf, c); - c = inchar (); - if (width > 0) - --width; - if (width != 0 && TOLOWER (c) == L_('x')) - { - /* It is a number in hexadecimal format. */ - char_buffer_add (&charbuf, c); - - flags |= HEXA_FLOAT; - exp_char = L_('p'); - - /* Grouping is not allowed. */ - flags &= ~GROUP; - c = inchar (); - if (width > 0) - --width; - } - else - got_digit = 1; - } - - while (1) - { - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - if (ISDIGIT (c)) - { - char_buffer_add (&charbuf, c); - got_digit = 1; - } - else if (!got_e && (flags & HEXA_FLOAT) && ISXDIGIT (c)) - { - char_buffer_add (&charbuf, c); - got_digit = 1; - } - else if (got_e && charbuf.current[-1] == exp_char - && (c == L_('-') || c == L_('+'))) - char_buffer_add (&charbuf, c); - else if (got_digit && !got_e - && (CHAR_T) TOLOWER (c) == exp_char) - { - char_buffer_add (&charbuf, exp_char); - got_e = got_dot = 1; - } - else - { -#ifdef COMPILE_WSCANF - if (! got_dot && c == decimal) - { - char_buffer_add (&charbuf, c); - got_dot = 1; - } - else if ((flags & GROUP) != 0 && ! got_dot && c == thousands) - char_buffer_add (&charbuf, c); - else - { - /* The last read character is not part of the number - anymore. */ - ungetc (c, s); - break; - } -#else - const char *cmpp = decimal; - int avail = width > 0 ? width : INT_MAX; - - if (! got_dot) - { - while ((unsigned char) *cmpp == c && avail >= 0) - if (*++cmpp == '\0') - break; - else - { - if (avail == 0 || inchar () == EOF) - break; - --avail; - } - } - - if (*cmpp == '\0') - { - /* Add all the characters. */ - for (cmpp = decimal; *cmpp != '\0'; ++cmpp) - char_buffer_add (&charbuf, (unsigned char) *cmpp); - if (width > 0) - width = avail; - got_dot = 1; - } - else - { - /* Figure out whether it is a thousands separator. - There is one problem: we possibly read more than - one character. We cannot push them back but since - we know that parts of the `decimal' string matched, - we can compare against it. */ - const char *cmp2p = thousands; - - if ((flags & GROUP) != 0 && ! got_dot) - { - while (cmp2p - thousands < cmpp - decimal - && *cmp2p == decimal[cmp2p - thousands]) - ++cmp2p; - if (cmp2p - thousands == cmpp - decimal) - { - while ((unsigned char) *cmp2p == c && avail >= 0) - if (*++cmp2p == '\0') - break; - else - { - if (avail == 0 || inchar () == EOF) - break; - --avail; - } - } - } - - if (cmp2p != NULL && *cmp2p == '\0') - { - /* Add all the characters. */ - for (cmpp = thousands; *cmpp != '\0'; ++cmpp) - char_buffer_add (&charbuf, (unsigned char) *cmpp); - if (width > 0) - width = avail; - } - else - { - /* The last read character is not part of the number - anymore. */ - ungetc (c, s); - break; - } - } -#endif - } - - if (width == 0 || inchar () == EOF) - break; - - if (width > 0) - --width; - } - - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - - wctrans_t map; - if (__builtin_expect ((flags & I18N) != 0, 0) - /* Hexadecimal floats make no sense, fixing localized - digits with ASCII letters. */ - && !(flags & HEXA_FLOAT) - /* Minimum requirement. */ - && (char_buffer_size (&charbuf) == got_sign || got_dot) - && (map = __wctrans ("to_inpunct")) != NULL) - { - /* Reget the first character. */ - inchar (); - - /* Localized digits, decimal points, and thousands - separator. */ - wint_t wcdigits[12]; - - /* First get decimal equivalent to check if we read it - or not. */ - wcdigits[11] = __towctrans (L'.', map); - - /* If we have not read any character or have just read - locale decimal point which matches the decimal point - for localized FP numbers, then we may have localized - digits. Note, we test GOT_DOT above. */ -#ifdef COMPILE_WSCANF - if (char_buffer_size (&charbuf) == got_sign - || (char_buffer_size (&charbuf) == got_sign + 1 - && wcdigits[11] == decimal)) -#else - char mbdigits[12][MB_LEN_MAX + 1]; - - mbstate_t state; - memset (&state, '\0', sizeof (state)); - - bool match_so_far = char_buffer_size (&charbuf) == got_sign; - size_t mblen = __wcrtomb (mbdigits[11], wcdigits[11], &state); - if (mblen != (size_t) -1) - { - mbdigits[11][mblen] = '\0'; - match_so_far |= - (char_buffer_size (&charbuf) == strlen (decimal) + got_sign - && strcmp (decimal, mbdigits[11]) == 0); - } - else - { - size_t decimal_len = strlen (decimal); - /* This should always be the case but the data comes - from a file. */ - if (decimal_len <= MB_LEN_MAX) - { - match_so_far |= (char_buffer_size (&charbuf) - == decimal_len + got_sign); - memcpy (mbdigits[11], decimal, decimal_len + 1); - } - else - match_so_far = false; - } - - if (match_so_far) -#endif - { - bool have_locthousands = (flags & GROUP) != 0; - - /* Now get the digits and the thousands-sep equivalents. */ - for (int n = 0; n < 11; ++n) - { - if (n < 10) - wcdigits[n] = __towctrans (L'0' + n, map); - else if (n == 10) - { - wcdigits[10] = __towctrans (L',', map); - have_locthousands &= wcdigits[10] != L'\0'; - } - -#ifndef COMPILE_WSCANF - memset (&state, '\0', sizeof (state)); - - size_t mblen = __wcrtomb (mbdigits[n], wcdigits[n], - &state); - if (mblen == (size_t) -1) - { - if (n == 10) - { - if (have_locthousands) - { - size_t thousands_len = strlen (thousands); - if (thousands_len <= MB_LEN_MAX) - memcpy (mbdigits[10], thousands, - thousands_len + 1); - else - have_locthousands = false; - } - } - else - /* Ignore checking against localized digits. */ - goto no_i18nflt; - } - else - mbdigits[n][mblen] = '\0'; -#endif - } - - /* Start checking against localized digits, if - conversion is done correctly. */ - while (1) - { - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - if (got_e && charbuf.current[-1] == exp_char - && (c == L_('-') || c == L_('+'))) - char_buffer_add (&charbuf, c); - else if (char_buffer_size (&charbuf) > got_sign && !got_e - && (CHAR_T) TOLOWER (c) == exp_char) - { - char_buffer_add (&charbuf, exp_char); - got_e = got_dot = 1; - } - else - { - /* Check against localized digits, decimal point, - and thousands separator. */ - int n; - for (n = 0; n < 12; ++n) - { -#ifdef COMPILE_WSCANF - if (c == wcdigits[n]) - { - if (n < 10) - char_buffer_add (&charbuf, L_('0') + n); - else if (n == 11 && !got_dot) - { - char_buffer_add (&charbuf, decimal); - got_dot = 1; - } - else if (n == 10 && have_locthousands - && ! got_dot) - char_buffer_add (&charbuf, thousands); - else - /* The last read character is not part - of the number anymore. */ - n = 12; - - break; - } -#else - const char *cmpp = mbdigits[n]; - int avail = width > 0 ? width : INT_MAX; - - while ((unsigned char) *cmpp == c && avail >= 0) - if (*++cmpp == '\0') - break; - else - { - if (avail == 0 || inchar () == EOF) - break; - --avail; - } - if (*cmpp == '\0') - { - if (width > 0) - width = avail; - - if (n < 10) - char_buffer_add (&charbuf, L_('0') + n); - else if (n == 11 && !got_dot) - { - /* Add all the characters. */ - for (cmpp = decimal; *cmpp != '\0'; - ++cmpp) - char_buffer_add (&charbuf, - (unsigned char) *cmpp); - - got_dot = 1; - } - else if (n == 10 && (flags & GROUP) != 0 - && ! got_dot) - { - /* Add all the characters. */ - for (cmpp = thousands; *cmpp != '\0'; - ++cmpp) - char_buffer_add (&charbuf, - (unsigned char) *cmpp); - } - else - /* The last read character is not part - of the number anymore. */ - n = 12; - - break; - } - - /* We are pushing all read characters back. */ - if (cmpp > mbdigits[n]) - { - ungetc (c, s); - while (--cmpp > mbdigits[n]) - ungetc_not_eof ((unsigned char) *cmpp, s); - c = (unsigned char) *cmpp; - } -#endif - } - - if (n >= 12) - { - /* The last read character is not part - of the number anymore. */ - ungetc (c, s); - break; - } - } - - if (width == 0 || inchar () == EOF) - break; - - if (width > 0) - --width; - } - } - -#ifndef COMPILE_WSCANF - no_i18nflt: - ; -#endif - } - - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - - /* Have we read any character? If we try to read a number - in hexadecimal notation and we have read only the `0x' - prefix this is an error. */ - if (__glibc_unlikely (char_buffer_size (&charbuf) == got_sign - || ((flags & HEXA_FLOAT) - && (char_buffer_size (&charbuf) - == 2 + got_sign)))) - conv_error (); - - scan_float: - /* Convert the number. */ - char_buffer_add (&charbuf, L_('\0')); - if (char_buffer_error (&charbuf)) - { - __set_errno (ENOMEM); - done = EOF; - goto errout; - } - if ((flags & LONGDBL) && !__ldbl_is_dbl) - { - long double d = __strtold_internal - (char_buffer_start (&charbuf), &tw, flags & GROUP); - if (!(flags & SUPPRESS) && tw != char_buffer_start (&charbuf)) - *ARG (long double *) = d; - } - else if (flags & (LONG | LONGDBL)) - { - double d = __strtod_internal - (char_buffer_start (&charbuf), &tw, flags & GROUP); - if (!(flags & SUPPRESS) && tw != char_buffer_start (&charbuf)) - *ARG (double *) = d; - } - else - { - float d = __strtof_internal - (char_buffer_start (&charbuf), &tw, flags & GROUP); - if (!(flags & SUPPRESS) && tw != char_buffer_start (&charbuf)) - *ARG (float *) = d; - } - - if (__glibc_unlikely (tw == char_buffer_start (&charbuf))) - conv_error (); - - if (!(flags & SUPPRESS)) - ++done; - break; - - case L_('['): /* Character class. */ - if (flags & LONG) - STRING_ARG (wstr, wchar_t, 100); - else - STRING_ARG (str, char, 100); - - if (*f == L_('^')) - { - ++f; - not_in = 1; - } - else - not_in = 0; - - if (width < 0) - /* There is no width given so there is also no limit on the - number of characters we read. Therefore we set width to - a very high value to make the algorithm easier. */ - width = INT_MAX; - -#ifdef COMPILE_WSCANF - /* Find the beginning and the end of the scanlist. We are not - creating a lookup table since it would have to be too large. - Instead we search each time through the string. This is not - a constant lookup time but who uses this feature deserves to - be punished. */ - tw = (wchar_t *) f; /* Marks the beginning. */ - - if (*f == L']') - ++f; - - while ((fc = *f++) != L'\0' && fc != L']'); - - if (__glibc_unlikely (fc == L'\0')) - conv_error (); - wchar_t *twend = (wchar_t *) f - 1; -#else - /* Fill WP with byte flags indexed by character. - We will use this flag map for matching input characters. */ - if (!scratch_buffer_set_array_size - (&charbuf.scratch, UCHAR_MAX + 1, 1)) - { - done = EOF; - goto errout; - } - memset (charbuf.scratch.data, '\0', UCHAR_MAX + 1); - - fc = *f; - if (fc == ']' || fc == '-') - { - /* If ] or - appears before any char in the set, it is not - the terminator or separator, but the first char in the - set. */ - ((char *)charbuf.scratch.data)[fc] = 1; - ++f; - } - - while ((fc = *f++) != '\0' && fc != ']') - if (fc == '-' && *f != '\0' && *f != ']' - && (unsigned char) f[-2] <= (unsigned char) *f) - { - /* Add all characters from the one before the '-' - up to (but not including) the next format char. */ - for (fc = (unsigned char) f[-2]; fc < (unsigned char) *f; ++fc) - ((char *)charbuf.scratch.data)[fc] = 1; - } - else - /* Add the character to the flag map. */ - ((char *)charbuf.scratch.data)[fc] = 1; - - if (__glibc_unlikely (fc == '\0')) - conv_error(); -#endif - - if (flags & LONG) - { - size_t now = read_in; -#ifdef COMPILE_WSCANF - if (__glibc_unlikely (inchar () == WEOF)) - input_error (); - - do - { - wchar_t *runp; - - /* Test whether it's in the scanlist. */ - runp = tw; - while (runp < twend) - { - if (runp[0] == L'-' && runp[1] != '\0' - && runp + 1 != twend - && runp != tw - && (unsigned int) runp[-1] <= (unsigned int) runp[1]) - { - /* Match against all characters in between the - first and last character of the sequence. */ - wchar_t wc; - - for (wc = runp[-1] + 1; wc <= runp[1]; ++wc) - if ((wint_t) wc == c) - break; - - if (wc <= runp[1] && !not_in) - break; - if (wc <= runp[1] && not_in) - { - /* The current character is not in the - scanset. */ - ungetc (c, s); - goto out; - } - - runp += 2; - } - else - { - if ((wint_t) *runp == c && !not_in) - break; - if ((wint_t) *runp == c && not_in) - { - ungetc (c, s); - goto out; - } - - ++runp; - } - } - - if (runp == twend && !not_in) - { - ungetc (c, s); - goto out; - } - - if (!(flags & SUPPRESS)) - { - *wstr++ = c; - - if ((flags & MALLOC) - && wstr == (wchar_t *) *strptr + strsize) - { - /* Enlarge the buffer. */ - wstr = (wchar_t *) realloc (*strptr, - (2 * strsize) - * sizeof (wchar_t)); - if (wstr == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - wstr = (wchar_t *) - realloc (*strptr, (strsize + 1) - * sizeof (wchar_t)); - if (wstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the string - and stop converting, so at least we don't - skip any input. */ - ((wchar_t *) (*strptr))[strsize - 1] = L'\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - strsize *= 2; - } - } - } - } - while (--width > 0 && inchar () != WEOF); - out: -#else - char buf[MB_LEN_MAX]; - size_t cnt = 0; - mbstate_t cstate; - - if (__glibc_unlikely (inchar () == EOF)) - input_error (); - - memset (&cstate, '\0', sizeof (cstate)); - - do - { - if (((char *) charbuf.scratch.data)[c] == not_in) - { - ungetc_not_eof (c, s); - break; - } - - /* This is easy. */ - if (!(flags & SUPPRESS)) - { - size_t n; - - /* Convert it into a wide character. */ - buf[0] = c; - n = __mbrtowc (wstr, buf, 1, &cstate); - - if (n == (size_t) -2) - { - /* Possibly correct character, just not enough - input. */ - ++cnt; - assert (cnt < MB_LEN_MAX); - continue; - } - cnt = 0; - - ++wstr; - if ((flags & MALLOC) - && wstr == (wchar_t *) *strptr + strsize) - { - /* Enlarge the buffer. */ - wstr = (wchar_t *) realloc (*strptr, - (2 * strsize - * sizeof (wchar_t))); - if (wstr == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - wstr = (wchar_t *) - realloc (*strptr, ((strsize + 1) - * sizeof (wchar_t))); - if (wstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the - string and stop converting, - so at least we don't skip any input. */ - ((wchar_t *) (*strptr))[strsize - 1] = L'\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - ++strsize; - } - } - else - { - *strptr = (char *) wstr; - wstr += strsize; - strsize *= 2; - } - } - } - - if (--width <= 0) - break; - } - while (inchar () != EOF); - - if (__glibc_unlikely (cnt != 0)) - /* We stopped in the middle of recognizing another - character. That's a problem. */ - encode_error (); -#endif - - if (__glibc_unlikely (now == read_in)) - /* We haven't succesfully read any character. */ - conv_error (); - - if (!(flags & SUPPRESS)) - { - *wstr++ = L'\0'; - - if ((flags & MALLOC) - && wstr - (wchar_t *) *strptr != strsize) - { - wchar_t *cp = (wchar_t *) - realloc (*strptr, ((wstr - (wchar_t *) *strptr) - * sizeof(wchar_t))); - if (cp != NULL) - *strptr = (char *) cp; - } - strptr = NULL; - - ++done; - } - } - else - { - size_t now = read_in; - - if (__glibc_unlikely (inchar () == EOF)) - input_error (); - -#ifdef COMPILE_WSCANF - - memset (&state, '\0', sizeof (state)); - - do - { - wchar_t *runp; - size_t n; - - /* Test whether it's in the scanlist. */ - runp = tw; - while (runp < twend) - { - if (runp[0] == L'-' && runp[1] != '\0' - && runp + 1 != twend - && runp != tw - && (unsigned int) runp[-1] <= (unsigned int) runp[1]) - { - /* Match against all characters in between the - first and last character of the sequence. */ - wchar_t wc; - - for (wc = runp[-1] + 1; wc <= runp[1]; ++wc) - if ((wint_t) wc == c) - break; - - if (wc <= runp[1] && !not_in) - break; - if (wc <= runp[1] && not_in) - { - /* The current character is not in the - scanset. */ - ungetc (c, s); - goto out2; - } - - runp += 2; - } - else - { - if ((wint_t) *runp == c && !not_in) - break; - if ((wint_t) *runp == c && not_in) - { - ungetc (c, s); - goto out2; - } - - ++runp; - } - } - - if (runp == twend && !not_in) - { - ungetc (c, s); - goto out2; - } - - if (!(flags & SUPPRESS)) - { - if ((flags & MALLOC) - && *strptr + strsize - str <= MB_LEN_MAX) - { - /* Enlarge the buffer. */ - size_t strleng = str - *strptr; - char *newstr; - - newstr = (char *) realloc (*strptr, 2 * strsize); - if (newstr == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - newstr = (char *) realloc (*strptr, - strleng + MB_LEN_MAX); - if (newstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the string - and stop converting, so at least we don't - skip any input. */ - ((char *) (*strptr))[strleng] = '\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize = strleng + MB_LEN_MAX; - } - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize *= 2; - } - } - } - - n = __wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state); - if (__glibc_unlikely (n == (size_t) -1)) - encode_error (); - - assert (n <= MB_LEN_MAX); - str += n; - } - while (--width > 0 && inchar () != WEOF); - out2: -#else - do - { - if (((char *) charbuf.scratch.data)[c] == not_in) - { - ungetc_not_eof (c, s); - break; - } - - /* This is easy. */ - if (!(flags & SUPPRESS)) - { - *str++ = c; - if ((flags & MALLOC) - && (char *) str == *strptr + strsize) - { - /* Enlarge the buffer. */ - size_t newsize = 2 * strsize; - - allocagain: - str = (char *) realloc (*strptr, newsize); - if (str == NULL) - { - /* Can't allocate that much. Last-ditch - effort. */ - if (newsize > strsize + 1) - { - newsize = strsize + 1; - goto allocagain; - } - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the - string and stop converting, - so at least we don't skip any input. */ - ((char *) (*strptr))[strsize - 1] = '\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = (char *) str; - str += strsize; - strsize = newsize; - } - } - } - } - while (--width > 0 && inchar () != EOF); -#endif - - if (__glibc_unlikely (now == read_in)) - /* We haven't succesfully read any character. */ - conv_error (); - - if (!(flags & SUPPRESS)) - { -#ifdef COMPILE_WSCANF - /* We have to emit the code to get into the initial - state. */ - char buf[MB_LEN_MAX]; - size_t n = __wcrtomb (buf, L'\0', &state); - if (n > 0 && (flags & MALLOC) - && str + n >= *strptr + strsize) - { - /* Enlarge the buffer. */ - size_t strleng = str - *strptr; - char *newstr; - - newstr = (char *) realloc (*strptr, strleng + n + 1); - if (newstr == NULL) - { - if (flags & POSIX_MALLOC) - { - done = EOF; - goto errout; - } - /* We lose. Oh well. Terminate the string - and stop converting, so at least we don't - skip any input. */ - ((char *) (*strptr))[strleng] = '\0'; - strptr = NULL; - ++done; - conv_error (); - } - else - { - *strptr = newstr; - str = newstr + strleng; - strsize = strleng + n + 1; - } - } - - str = __mempcpy (str, buf, n); -#endif - *str++ = '\0'; - - if ((flags & MALLOC) && str - *strptr != strsize) - { - char *cp = (char *) realloc (*strptr, str - *strptr); - if (cp != NULL) - *strptr = cp; - } - strptr = NULL; - - ++done; - } - } - break; - - case L_('p'): /* Generic pointer. */ - base = 16; - /* A PTR must be the same size as a `long int'. */ - flags &= ~(SHORT|LONGDBL); - if (need_long) - flags |= LONG; - flags |= READ_POINTER; - goto number; - - default: - /* If this is an unknown format character punt. */ - conv_error (); - } - } - - /* The last thing we saw int the format string was a white space. - Consume the last white spaces. */ - if (skip_space) - { - do - c = inchar (); - while (ISSPACE (c)); - ungetc (c, s); - } - - errout: - /* Unlock stream. */ - UNLOCK_STREAM (s); - - scratch_buffer_free (&charbuf.scratch); - if (errp != NULL) - *errp |= errval; - - if (__glibc_unlikely (done == EOF)) - { - if (__glibc_unlikely (ptrs_to_free != NULL)) - { - struct ptrs_to_free *p = ptrs_to_free; - while (p != NULL) - { - for (size_t cnt = 0; cnt < p->count; ++cnt) - { - free (*p->ptrs[cnt]); - *p->ptrs[cnt] = NULL; - } - p = p->next; - ptrs_to_free = p; - } - } - } - else if (__glibc_unlikely (strptr != NULL)) - { - free (*strptr); - *strptr = NULL; - } - return done; -} - -#ifdef COMPILE_WSCANF -int -__vfwscanf (FILE *s, const wchar_t *format, va_list argptr) -{ - return _IO_vfwscanf (s, format, argptr, NULL); -} -ldbl_weak_alias (__vfwscanf, vfwscanf) -#else int ___vfscanf (FILE *s, const char *format, va_list argptr) { - return _IO_vfscanf_internal (s, format, argptr, NULL); + return __vfscanf_internal (s, format, argptr, 0); } -ldbl_strong_alias (_IO_vfscanf_internal, _IO_vfscanf) -ldbl_hidden_def (_IO_vfscanf_internal, _IO_vfscanf) ldbl_strong_alias (___vfscanf, __vfscanf) ldbl_hidden_def (___vfscanf, __vfscanf) ldbl_weak_alias (___vfscanf, vfscanf) -#endif |