diff options
Diffstat (limited to 'stdio-common/vfscanf.c')
| -rw-r--r-- | stdio-common/vfscanf.c | 85 |
1 files changed, 56 insertions, 29 deletions
diff --git a/stdio-common/vfscanf.c b/stdio-common/vfscanf.c index bc7acd60de..4b4dd119ca 100644 --- a/stdio-common/vfscanf.c +++ b/stdio-common/vfscanf.c @@ -54,38 +54,59 @@ Cambridge, MA 02139, USA. */ # define va_list _IO_va_list # define ungetc(c, s) _IO_ungetc (c, s) -# define inchar() ((c = _IO_getc (s)), (void) ++read_in, c) -# define conv_error() return ((void) (errp != NULL && (*errp |= 2)), \ - (void) (c == EOF || _IO_ungetc (c, s)), done) - -# define input_error() return ((void) (errp != NULL && (*errp |= 1)), \ - done == 0 ? EOF : done) -# define memory_error() return ((void) (errno = ENOMEM), EOF) -# define ARGCHECK(s, format) \ - do \ - { \ - /* Check file argument for consistence. */ \ - CHECK_FILE (s, -1); \ - if (s->_flags & _IO_NO_READS || format == NULL) \ - { \ - MAYBE_SET_EINVAL; \ - return -1; \ - } \ +# define inchar() ((c = _IO_getc_unlocked (s)), (void) ++read_in, c) +# define conv_error() do { \ + if (errp != NULL) *errp |= 2; \ + if (c != EOF) _IO_ungetc (c, s); \ + _IO_funlockfile (s); \ + return done; \ + } while (0) +# define input_error() do { \ + _IO_funlockfile (s); \ + if (errp != NULL) *errp |= 1; \ + return done ?: EOF; \ + } while (0) +# define memory_error() do { \ + _IO_funlockfile (s); \ + errno = ENOMEM; \ + return EOF; \ + } while (0) +# define ARGCHECK(s, format) \ + do \ + { \ + /* Check file argument for consistence. */ \ + CHECK_FILE (s, EOF); \ + if (s->_flags & _IO_NO_READS || format == NULL) \ + { \ + MAYBE_SET_EINVAL; \ + return EOF; \ + } \ } while (0) #else # define inchar() ((c = getc (s)), (void) ++read_in, c) -# define conv_error() return ((void) ungetc (c, s), done) -# define input_error() return (done == 0 ? EOF : done) -# define memory_error() return ((void) (errno = ENOMEM), EOF) -# define ARGCHECK(s, format) \ - do \ - { \ - /* Check file argument for consistence. */ \ - if (!__validfp (s) || !s->__mode.__read || format == NULL) \ - { \ - errno = EINVAL; \ - return -1; \ - } \ +# define conv_error() do { \ + funlockfile (s); \ + ungetc (c, s); \ + return done; \ + } while (0) +# define input_error() do { \ + funlockfile (s); \ + return done ?: EOF; \ + } while (0) +# define memory_error() do { \ + funlockfile (s); \ + errno = ENOMEM; \ + return EOF; \ + } while (0) +# define ARGCHECK(s, format) \ + do \ + { \ + /* Check file argument for consistence. */ \ + if (!__validfp (s) || !s->__mode.__read || format == NULL) \ + { \ + errno = EINVAL; \ + return EOF; \ + } \ } while (0) #endif @@ -173,6 +194,9 @@ __vfscanf (FILE *s, const char *format, va_list argptr) strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0) thousands = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP); + /* Lock the stream. */ + flockfile (s); + c = inchar (); /* Run through the format string. */ @@ -781,6 +805,9 @@ __vfscanf (FILE *s, const char *format, va_list argptr) while (isspace (c)) (void) inchar (); + /* Unlock stream. */ + funlockfile (s); + return ((void) (c == EOF || ungetc (c, s)), done); } |