include/stdio.h

   1 #ifndef _STDIO_H
   2 # if !defined _ISOMAC && defined _IO_MTSAFE_IO
   3 #  include <stdio-lock.h>
   4 # endif
   5 # include <libio/stdio.h>
   6 # ifndef _ISOMAC
   7 #  define _LIBC_STDIO_H 1
   8 #  include <libio/libio.h>
   9
  10 /* Now define the internal interfaces.  */
  11
  12 extern int __fcloseall (void) attribute_hidden;
  13 extern int __snprintf (char *__restrict __s, size_t __maxlen,
  14                        const char *__restrict __format, ...)
  15      __attribute__ ((__format__ (__printf__, 3, 4)));
  16 libc_hidden_proto (__snprintf)
  17 extern int __vfscanf (FILE *__restrict __s,
  18                       const char *__restrict __format,
  19                       __gnuc_va_list __arg)
  20      __attribute__ ((__format__ (__scanf__, 2, 0)));
  21 libc_hidden_proto (__vfscanf)
  22 extern int __vscanf (const char *__restrict __format,
  23                      __gnuc_va_list __arg)
  24      __attribute__ ((__format__ (__scanf__, 1, 0)));
  25 extern __ssize_t __getline (char **__lineptr, size_t *__n,
  26                             FILE *__stream) attribute_hidden;
  27 extern int __vsscanf (const char *__restrict __s,
  28                       const char *__restrict __format,
  29                       __gnuc_va_list __arg)
  30      __attribute__ ((__format__ (__scanf__, 2, 0)));
  31
  32 extern int __sprintf_chk (char *, int, size_t, const char *, ...) __THROW;
  33 extern int __snprintf_chk (char *, size_t, int, size_t, const char *, ...)
  34      __THROW;
  35 extern int __vsprintf_chk (char *, int, size_t, const char *,
  36                            __gnuc_va_list) __THROW;
  37 extern int __vsnprintf_chk (char *, size_t, int, size_t, const char *,
  38                             __gnuc_va_list) __THROW;
  39 extern int __printf_chk (int, const char *, ...);
  40 extern int __fprintf_chk (FILE *, int, const char *, ...);
  41 extern int __vprintf_chk (int, const char *, __gnuc_va_list);
  42 extern int __vfprintf_chk (FILE *, int, const char *, __gnuc_va_list);
  43 extern char *__fgets_unlocked_chk (char *buf, size_t size, int n, FILE *fp);
  44 extern char *__fgets_chk (char *buf, size_t size, int n, FILE *fp);
  45 extern int __asprintf_chk (char **, int, const char *, ...) __THROW;
  46 extern int __vasprintf_chk (char **, int, const char *, __gnuc_va_list) __THROW;
  47 extern int __dprintf_chk (int, int, const char *, ...);
  48 extern int __vdprintf_chk (int, int, const char *, __gnuc_va_list);
  49 extern int __obstack_printf_chk (struct obstack *, int, const char *, ...)
  50      __THROW;
  51 extern int __obstack_vprintf_chk (struct obstack *, int, const char *,
  52                                   __gnuc_va_list) __THROW;
  53
  54 extern int __isoc99_fscanf (FILE *__restrict __stream,
  55                             const char *__restrict __format, ...) __wur;
  56 extern int __isoc99_scanf (const char *__restrict __format, ...) __wur;
  57 extern int __isoc99_sscanf (const char *__restrict __s,
  58                             const char *__restrict __format, ...) __THROW;
  59 extern int __isoc99_vfscanf (FILE *__restrict __s,
  60                              const char *__restrict __format,
  61                              __gnuc_va_list __arg) __wur;
  62 extern int __isoc99_vscanf (const char *__restrict __format,
  63                             __gnuc_va_list __arg) __wur;
  64 extern int __isoc99_vsscanf (const char *__restrict __s,
  65                              const char *__restrict __format,
  66                              __gnuc_va_list __arg) __THROW;
  67 libc_hidden_proto (__isoc99_sscanf)
  68 libc_hidden_proto (__isoc99_vsscanf)
  69 libc_hidden_proto (__isoc99_vfscanf)
  70
  71 /* Internal uses of sscanf should call the C99-compliant version.
  72    Unfortunately, symbol redirection is not transitive, so the
  73    __REDIRECT in the public header does not link up with the above
  74    libc_hidden_proto.  Bridge the gap with a macro.  */
  75 #  if !__GLIBC_USE (DEPRECATED_SCANF)
  76 #   undef sscanf
  77 #   define sscanf __isoc99_sscanf
  78 #  endif
  79
  80 /* Prototypes for compatibility functions.  */
  81 extern FILE *__new_tmpfile (void);
  82 extern FILE *__old_tmpfile (void);
  83
  84 #  define __need_size_t
  85 #  include <stddef.h>
  86
  87 #  include <bits/types/wint_t.h>
  88
  89 /* Generate a unique file name (and possibly open it).  */
  90 extern int __path_search (char *__tmpl, size_t __tmpl_len,
  91                           const char *__dir, const char *__pfx,
  92                           int __try_tempdir) attribute_hidden;
  93
  94 extern int __gen_tempname (char *__tmpl, int __suffixlen, int __flags,
  95                            int __kind) attribute_hidden;
  96 /* The __kind argument to __gen_tempname may be one of: */
  97 #  define __GT_FILE     0       /* create a file */
  98 #  define __GT_DIR      1       /* create a directory */
  99 #  define __GT_NOCREATE 2       /* just find a name not currently in use */
 100
 101 enum __libc_message_action
 102 {
 103   do_message    = 0,            /* Print message.  */
 104   do_abort      = 1 << 0,       /* Abort.  */
 105 };
 106
 107 /* Print out MESSAGE (which should end with a newline) on the error output
 108    and abort.  */
 109 extern void __libc_fatal (const char *__message)
 110      __attribute__ ((__noreturn__));
 111 extern void __libc_message (enum __libc_message_action action,
 112                             const char *__fnt, ...) attribute_hidden;
 113 extern void __fortify_fail (const char *msg) __attribute__ ((__noreturn__));
 114 libc_hidden_proto (__fortify_fail)
 115
 116 /* Acquire ownership of STREAM.  */
 117 extern void __flockfile (FILE *__stream) attribute_hidden;
 118
 119 /* Relinquish the ownership granted for STREAM.  */
 120 extern void __funlockfile (FILE *__stream) attribute_hidden;
 121
 122 /* Try to acquire ownership of STREAM but do not block if it is not
 123    possible.  */
 124 extern int __ftrylockfile (FILE *__stream);
 125
 126 extern int __getc_unlocked (FILE *__fp) attribute_hidden;
 127 extern wint_t __getwc_unlocked (FILE *__fp);
 128
 129 extern int __fxprintf (FILE *__fp, const char *__fmt, ...)
 130      __attribute__ ((__format__ (__printf__, 2, 3))) attribute_hidden;
 131 extern int __fxprintf_nocancel (FILE *__fp, const char *__fmt, ...)
 132      __attribute__ ((__format__ (__printf__, 2, 3))) attribute_hidden;
 133 int __vfxprintf (FILE *__fp, const char *__fmt, __gnuc_va_list,
 134                  unsigned int)
 135   attribute_hidden;
 136
 137 /* Read the next line from FP into BUFFER, of LENGTH bytes.  LINE will
 138    include the line terminator and a NUL terminator.  On success,
 139    return the length of the line, including the line terminator, but
 140    excluding the NUL termintor.  On EOF, return zero and write a NUL
 141    terminator.  On error, return -1 and set errno.  If the total byte
 142    count (line and both terminators) exceeds LENGTH, return -1 and set
 143    errno to ERANGE (but do not mark the stream as failed).
 144
 145    The behavior is undefined if FP is not seekable, or if the stream
 146    is already in an error state.  */
 147 ssize_t __libc_readline_unlocked (FILE *fp, char *buffer, size_t length);
 148 libc_hidden_proto (__libc_readline_unlocked);
 149
 150 extern const char *const _sys_errlist_internal[] attribute_hidden;
 151 extern int _sys_nerr_internal attribute_hidden;
 152
 153 libc_hidden_proto (__asprintf)
 154 #  if IS_IN (libc)
 155 extern FILE *_IO_new_fopen (const char*, const char*);
 156 #   define fopen(fname, mode) _IO_new_fopen (fname, mode)
 157 extern FILE *_IO_new_fdopen (int, const char*);
 158 #   define fdopen(fd, mode) _IO_new_fdopen (fd, mode)
 159 extern int _IO_new_fclose (FILE*);
 160 #   define fclose(fp) _IO_new_fclose (fp)
 161 extern int _IO_fputs (const char*, FILE*);
 162 libc_hidden_proto (_IO_fputs)
 163 /* The compiler may optimize calls to fprintf into calls to fputs.
 164    Use libc_hidden_proto to ensure that those calls, not redirected by
 165    the fputs macro, also do not go through the PLT.  */
 166 libc_hidden_proto (fputs)
 167 #   define fputs(str, fp) _IO_fputs (str, fp)
 168 extern int _IO_new_fsetpos (FILE *, const __fpos_t *);
 169 #   define fsetpos(fp, posp) _IO_new_fsetpos (fp, posp)
 170 extern int _IO_new_fgetpos (FILE *, __fpos_t *);
 171 #   define fgetpos(fp, posp) _IO_new_fgetpos (fp, posp)
 172 #  endif
 173
 174 libc_hidden_proto (dprintf)
 175 extern __typeof (dprintf) __dprintf
 176      __attribute__ ((__format__ (__printf__, 2, 3)));
 177 libc_hidden_proto (__dprintf)
 178 libc_hidden_proto (fprintf)
 179 libc_hidden_proto (vfprintf)
 180 libc_hidden_proto (sprintf)
 181 libc_hidden_proto (fwrite)
 182 libc_hidden_proto (perror)
 183 libc_hidden_proto (remove)
 184 libc_hidden_proto (rewind)
 185 libc_hidden_proto (fileno)
 186 extern __typeof (fileno) __fileno;
 187 libc_hidden_proto (__fileno)
 188 libc_hidden_proto (fwrite)
 189 libc_hidden_proto (fseek)
 190 extern __typeof (ftello) __ftello;
 191 libc_hidden_proto (__ftello)
 192 extern __typeof (fseeko64) __fseeko64;
 193 libc_hidden_proto (__fseeko64)
 194 extern __typeof (ftello64) __ftello64;
 195 libc_hidden_proto (__ftello64)
 196 libc_hidden_proto (fflush)
 197 libc_hidden_proto (fflush_unlocked)
 198 extern __typeof (fflush_unlocked) __fflush_unlocked;
 199 libc_hidden_proto (__fflush_unlocked)
 200 extern __typeof (fread_unlocked) __fread_unlocked;
 201 libc_hidden_proto (__fread_unlocked)
 202 libc_hidden_proto (fwrite_unlocked)
 203 libc_hidden_proto (fgets_unlocked)
 204 extern __typeof (fgets_unlocked) __fgets_unlocked;
 205 libc_hidden_proto (__fgets_unlocked)
 206 libc_hidden_proto (fputs_unlocked)
 207 extern __typeof (fputs_unlocked) __fputs_unlocked;
 208 libc_hidden_proto (__fputs_unlocked)
 209 libc_hidden_proto (feof_unlocked)
 210 extern __typeof (feof_unlocked) __feof_unlocked attribute_hidden;
 211 libc_hidden_proto (ferror_unlocked)
 212 extern __typeof (ferror_unlocked) __ferror_unlocked attribute_hidden;
 213 libc_hidden_proto (getc_unlocked)
 214 libc_hidden_proto (fputc_unlocked)
 215 libc_hidden_proto (putc_unlocked)
 216 extern __typeof (putc_unlocked) __putc_unlocked attribute_hidden;
 217 libc_hidden_proto (fmemopen)
 218 /* The prototype needs repeating instead of using __typeof to use
 219    __THROW in C++ tests.  */
 220 extern FILE *__open_memstream (char **, size_t *) __THROW __wur;
 221 libc_hidden_proto (__open_memstream)
 222 libc_hidden_proto (__libc_fatal)
 223 rtld_hidden_proto (__libc_fatal)
 224 libc_hidden_proto (__vsprintf_chk)
 225
 226 extern FILE * __fmemopen (void *buf, size_t len, const char *mode);
 227 libc_hidden_proto (__fmemopen)
 228
 229 extern int __gen_tempfd (int flags);
 230 libc_hidden_proto (__gen_tempfd)
 231
 232 #  ifdef __USE_EXTERN_INLINES
 233 __extern_inline int
 234 __NTH (__feof_unlocked (FILE *__stream))
 235 {
 236   return __feof_unlocked_body (__stream);
 237 }
 238
 239 __extern_inline int
 240 __NTH (__ferror_unlocked (FILE *__stream))
 241 {
 242   return __ferror_unlocked_body (__stream);
 243 }
 244
 245 __extern_inline int
 246 __getc_unlocked (FILE *__fp)
 247 {
 248   return __getc_unlocked_body (__fp);
 249 }
 250
 251 __extern_inline int
 252 __putc_unlocked (int __c, FILE *__stream)
 253 {
 254   return __putc_unlocked_body (__c, __stream);
 255 }
 256 #  endif
 257
 258 extern __typeof (renameat) __renameat;
 259 libc_hidden_proto (__renameat)
 260 extern __typeof (renameat2) __renameat2;
 261 libc_hidden_proto (__renameat2)
 262
 263 # endif /* not _ISOMAC */
 264 #endif /* stdio.h */