root/maint/gnulib/lib/glob-libc.h

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   1 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3 
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8 
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13 
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17 
  18 #ifndef _GLOB_H
  19 #define _GLOB_H 1
  20 
  21 #ifndef __GLOB_GNULIB
  22 # include <sys/cdefs.h>
  23 #endif
  24 
  25 __BEGIN_DECLS
  26 
  27 #define __need_size_t
  28 #include <stddef.h>
  29 
  30 /* Bits set in the FLAGS argument to 'glob'.  */
  31 #define GLOB_ERR        (1 << 0)/* Return on read errors.  */
  32 #define GLOB_MARK       (1 << 1)/* Append a slash to each name.  */
  33 #define GLOB_NOSORT     (1 << 2)/* Don't sort the names.  */
  34 #define GLOB_DOOFFS     (1 << 3)/* Insert PGLOB->gl_offs NULLs.  */
  35 #define GLOB_NOCHECK    (1 << 4)/* If nothing matches, return the pattern.  */
  36 #define GLOB_APPEND     (1 << 5)/* Append to results of a previous call.  */
  37 #define GLOB_NOESCAPE   (1 << 6)/* Backslashes don't quote metacharacters.  */
  38 #define GLOB_PERIOD     (1 << 7)/* Leading '.' can be matched by metachars.  */
  39 
  40 #if !defined __USE_POSIX2 || defined __USE_MISC
  41 # define GLOB_MAGCHAR    (1 << 8)/* Set in gl_flags if any metachars seen.  */
  42 # define GLOB_ALTDIRFUNC (1 << 9)/* Use gl_opendir et al functions.  */
  43 # define GLOB_BRACE      (1 << 10)/* Expand "{a,b}" to "a" "b".  */
  44 # define GLOB_NOMAGIC    (1 << 11)/* If no magic chars, return the pattern.  */
  45 # define GLOB_TILDE      (1 << 12)/* Expand ~user and ~ to home directories. */
  46 # define GLOB_ONLYDIR    (1 << 13)/* Match only directories.  */
  47 # define GLOB_TILDE_CHECK (1 << 14)/* Like GLOB_TILDE but return an error
  48                                       if the user name is not available.  */
  49 # define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS  \
  50                          |GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND     \
  51                          |GLOB_PERIOD|GLOB_ALTDIRFUNC|GLOB_BRACE     \
  52                          |GLOB_NOMAGIC|GLOB_TILDE|GLOB_ONLYDIR|GLOB_TILDE_CHECK)
  53 #else
  54 # define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS  \
  55                          |GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND     \
  56                          |GLOB_PERIOD)
  57 #endif
  58 
  59 /* Error returns from 'glob'.  */
  60 #define GLOB_NOSPACE    1       /* Ran out of memory.  */
  61 #define GLOB_ABORTED    2       /* Read error.  */
  62 #define GLOB_NOMATCH    3       /* No matches found.  */
  63 #define GLOB_NOSYS      4       /* Not implemented.  */
  64 #ifdef __USE_GNU
  65 /* Previous versions of this file defined GLOB_ABEND instead of
  66    GLOB_ABORTED.  Provide a compatibility definition here.  */
  67 # define GLOB_ABEND GLOB_ABORTED
  68 #endif
  69 
  70 /* Structure describing a globbing run.  */
  71 #ifdef __USE_GNU
  72 struct stat;
  73 #endif
  74 typedef struct
  75   {
  76     size_t gl_pathc;          /* Count of paths matched by the pattern.  */
  77     char **gl_pathv;            /* List of matched pathnames.  */
  78     size_t gl_offs;           /* Slots to reserve in 'gl_pathv'.  */
  79     int gl_flags;               /* Set to FLAGS, maybe | GLOB_MAGCHAR.  */
  80 
  81     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
  82        are used instead of the normal file access functions.  */
  83     void (*gl_closedir) (void *);
  84 #ifdef __USE_GNU
  85     struct dirent *(*gl_readdir) (void *);
  86 #else
  87     void *(*gl_readdir) (void *);
  88 #endif
  89     void *(*gl_opendir) (const char *);
  90 #ifdef __USE_GNU
  91     int (*gl_lstat) (const char *__restrict, struct stat *__restrict);
  92     int (*gl_stat) (const char *__restrict, struct stat *__restrict);
  93 #else
  94     int (*gl_lstat) (const char *__restrict, void *__restrict);
  95     int (*gl_stat) (const char *__restrict, void *__restrict);
  96 #endif
  97   } glob_t;
  98 
  99 #ifdef __USE_LARGEFILE64
 100 # ifdef __USE_GNU
 101 struct stat64;
 102 # endif
 103 typedef struct
 104   {
 105     size_t gl_pathc;
 106     char **gl_pathv;
 107     size_t gl_offs;
 108     int gl_flags;
 109 
 110     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
 111        are used instead of the normal file access functions.  */
 112     void (*gl_closedir) (void *);
 113 # ifdef __USE_GNU
 114     struct dirent64 *(*gl_readdir) (void *);
 115 # else
 116     void *(*gl_readdir) (void *);
 117 # endif
 118     void *(*gl_opendir) (const char *);
 119 # ifdef __USE_GNU
 120     int (*gl_lstat) (const char *__restrict, struct stat64 *__restrict);
 121     int (*gl_stat) (const char *__restrict, struct stat64 *__restrict);
 122 # else
 123     int (*gl_lstat) (const char *__restrict, void *__restrict);
 124     int (*gl_stat) (const char *__restrict, void *__restrict);
 125 # endif
 126   } glob64_t;
 127 #endif
 128 
 129 /* Do glob searching for PATTERN, placing results in PGLOB.
 130    The bits defined above may be set in FLAGS.
 131    If a directory cannot be opened or read and ERRFUNC is not nil,
 132    it is called with the pathname that caused the error, and the
 133    'errno' value from the failing call; if it returns non-zero
 134    'glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
 135    If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
 136    Otherwise, 'glob' returns zero.  */
 137 #if !defined __USE_FILE_OFFSET64 || defined __GLOB_GNULIB
 138 extern int glob (const char *__restrict __pattern, int __flags,
 139                  int (*__errfunc) (const char *, int),
 140                  glob_t *__restrict __pglob) __THROWNL;
 141 
 142 /* Free storage allocated in PGLOB by a previous 'glob' call.  */
 143 extern void globfree (glob_t *__pglob) __THROW;
 144 #else
 145 # ifdef __USE_TIME_BITS64
 146 extern int __REDIRECT_NTHNL (glob, (const char *__restrict __pattern,
 147                                    int __flags,
 148                                    int (*__errfunc) (const char *, int),
 149                                    glob_t *__restrict __pglob),
 150                             __glob64_time64);
 151 
 152 extern void __REDIRECT_NTH (globfree, (glob_t *__pglob),
 153                            __globfree64_time64);
 154 # else
 155 extern int __REDIRECT_NTHNL (glob, (const char *__restrict __pattern,
 156                                     int __flags,
 157                                     int (*__errfunc) (const char *, int),
 158                                     glob_t *__restrict __pglob), glob64);
 159 
 160 extern void __REDIRECT_NTH (globfree, (glob_t *__pglob), globfree64);
 161 # endif
 162 #endif
 163 
 164 #ifdef __USE_LARGEFILE64
 165 # ifdef __USE_TIME_BITS64
 166 extern int __REDIRECT_NTHNL (glob64, (const char *__restrict __pattern,
 167                                      int __flags,
 168                                      int (*__errfunc) (const char *, int),
 169                                      glob64_t *__restrict __pglob),
 170                             __glob64_time64);
 171 
 172 extern void __REDIRECT_NTH (globfree64, (glob64_t *__pglob),
 173                            __globfree64_time64);
 174 # else
 175 extern int glob64 (const char *__restrict __pattern, int __flags,
 176                    int (*__errfunc) (const char *, int),
 177                    glob64_t *__restrict __pglob) __THROWNL;
 178 
 179 extern void globfree64 (glob64_t *__pglob) __THROW;
 180 # endif
 181 #endif
 182 
 183 
 184 #ifdef __USE_GNU
 185 /* Return nonzero if PATTERN contains any metacharacters.
 186    Metacharacters can be quoted with backslashes if QUOTE is nonzero.
 187 
 188    This function is not part of the interface specified by POSIX.2
 189    but several programs want to use it.  */
 190 extern int glob_pattern_p (const char *__pattern, int __quote) __THROW;
 191 #endif
 192 
 193 __END_DECLS
 194 
 195 #endif /* glob.h  */
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