posix/glob.h

   1 /* Copyright (C) 1991,1992,1995-1998,2000,2001,2004,2010,2011,2012
   2    Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _GLOB_H
  21 #define _GLOB_H 1
  22
  23 #include <sys/cdefs.h>
  24
  25 __BEGIN_DECLS
  26
  27 /* We need `size_t' for the following definitions.  */
  28 #ifndef __size_t
  29 typedef __SIZE_TYPE__ __size_t;
  30 # if defined __USE_XOPEN || __USE_XOPEN2K8
  31 typedef __SIZE_TYPE__ size_t;
  32 # endif
  33 #else
  34 /* The GNU CC stddef.h version defines __size_t as empty.  We need a real
  35    definition.  */
  36 # undef __size_t
  37 # define __size_t size_t
  38 #endif
  39
  40 /* Bits set in the FLAGS argument to `glob'.  */
  41 #define GLOB_ERR        (1 << 0)/* Return on read errors.  */
  42 #define GLOB_MARK       (1 << 1)/* Append a slash to each name.  */
  43 #define GLOB_NOSORT     (1 << 2)/* Don't sort the names.  */
  44 #define GLOB_DOOFFS     (1 << 3)/* Insert PGLOB->gl_offs NULLs.  */
  45 #define GLOB_NOCHECK    (1 << 4)/* If nothing matches, return the pattern.  */
  46 #define GLOB_APPEND     (1 << 5)/* Append to results of a previous call.  */
  47 #define GLOB_NOESCAPE   (1 << 6)/* Backslashes don't quote metacharacters.  */
  48 #define GLOB_PERIOD     (1 << 7)/* Leading `.' can be matched by metachars.  */
  49
  50 #if !defined __USE_POSIX2 || defined __USE_BSD || defined __USE_GNU
  51 # define GLOB_MAGCHAR    (1 << 8)/* Set in gl_flags if any metachars seen.  */
  52 # define GLOB_ALTDIRFUNC (1 << 9)/* Use gl_opendir et al functions.  */
  53 # define GLOB_BRACE      (1 << 10)/* Expand "{a,b}" to "a" "b".  */
  54 # define GLOB_NOMAGIC    (1 << 11)/* If no magic chars, return the pattern.  */
  55 # define GLOB_TILDE      (1 << 12)/* Expand ~user and ~ to home directories. */
  56 # define GLOB_ONLYDIR    (1 << 13)/* Match only directories.  */
  57 # define GLOB_TILDE_CHECK (1 << 14)/* Like GLOB_TILDE but return an error
  58                                       if the user name is not available.  */
  59 # define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
  60                          GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND|     \
  61                          GLOB_PERIOD|GLOB_ALTDIRFUNC|GLOB_BRACE|     \
  62                          GLOB_NOMAGIC|GLOB_TILDE|GLOB_ONLYDIR|GLOB_TILDE_CHECK)
  63 #else
  64 # define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
  65                          GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND|     \
  66                          GLOB_PERIOD)
  67 #endif
  68
  69 /* Error returns from `glob'.  */
  70 #define GLOB_NOSPACE    1       /* Ran out of memory.  */
  71 #define GLOB_ABORTED    2       /* Read error.  */
  72 #define GLOB_NOMATCH    3       /* No matches found.  */
  73 #define GLOB_NOSYS      4       /* Not implemented.  */
  74 #ifdef __USE_GNU
  75 /* Previous versions of this file defined GLOB_ABEND instead of
  76    GLOB_ABORTED.  Provide a compatibility definition here.  */
  77 # define GLOB_ABEND GLOB_ABORTED
  78 #endif
  79
  80 /* Structure describing a globbing run.  */
  81 #ifdef __USE_GNU
  82 struct stat;
  83 #endif
  84 typedef struct
  85   {
  86     __size_t gl_pathc;          /* Count of paths matched by the pattern.  */
  87     char **gl_pathv;            /* List of matched pathnames.  */
  88     __size_t gl_offs;           /* Slots to reserve in `gl_pathv'.  */
  89     int gl_flags;               /* Set to FLAGS, maybe | GLOB_MAGCHAR.  */
  90
  91     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
  92        are used instead of the normal file access functions.  */
  93     void (*gl_closedir) (void *);
  94 #ifdef __USE_GNU
  95     struct dirent *(*gl_readdir) (void *);
  96 #else
  97     void *(*gl_readdir) (void *);
  98 #endif
  99     void *(*gl_opendir) (const char *);
 100 #ifdef __USE_GNU
 101     int (*gl_lstat) (const char *__restrict, struct stat *__restrict);
 102     int (*gl_stat) (const char *__restrict, struct stat *__restrict);
 103 #else
 104     int (*gl_lstat) (const char *__restrict, void *__restrict);
 105     int (*gl_stat) (const char *__restrict, void *__restrict);
 106 #endif
 107   } glob_t;
 108
 109 #ifdef __USE_LARGEFILE64
 110 # ifdef __USE_GNU
 111 struct stat64;
 112 # endif
 113 typedef struct
 114   {
 115     __size_t gl_pathc;
 116     char **gl_pathv;
 117     __size_t gl_offs;
 118     int gl_flags;
 119
 120     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
 121        are used instead of the normal file access functions.  */
 122     void (*gl_closedir) (void *);
 123 # ifdef __USE_GNU
 124     struct dirent64 *(*gl_readdir) (void *);
 125 # else
 126     void *(*gl_readdir) (void *);
 127 # endif
 128     void *(*gl_opendir) (const char *);
 129 # ifdef __USE_GNU
 130     int (*gl_lstat) (const char *__restrict, struct stat64 *__restrict);
 131     int (*gl_stat) (const char *__restrict, struct stat64 *__restrict);
 132 # else
 133     int (*gl_lstat) (const char *__restrict, void *__restrict);
 134     int (*gl_stat) (const char *__restrict, void *__restrict);
 135 # endif
 136   } glob64_t;
 137 #endif
 138
 139 /* Do glob searching for PATTERN, placing results in PGLOB.
 140    The bits defined above may be set in FLAGS.
 141    If a directory cannot be opened or read and ERRFUNC is not nil,
 142    it is called with the pathname that caused the error, and the
 143    `errno' value from the failing call; if it returns non-zero
 144    `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
 145    If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
 146    Otherwise, `glob' returns zero.  */
 147 #if !defined __USE_FILE_OFFSET64
 148 extern int glob (const char *__restrict __pattern, int __flags,
 149                  int (*__errfunc) (const char *, int),
 150                  glob_t *__restrict __pglob) __THROW;
 151
 152 /* Free storage allocated in PGLOB by a previous `glob' call.  */
 153 extern void globfree (glob_t *__pglob) __THROW;
 154 #else
 155 extern int __REDIRECT_NTH (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
 163 #ifdef __USE_LARGEFILE64
 164 extern int glob64 (const char *__restrict __pattern, int __flags,
 165                    int (*__errfunc) (const char *, int),
 166                    glob64_t *__restrict __pglob) __THROW;
 167
 168 extern void globfree64 (glob64_t *__pglob) __THROW;
 169 #endif
 170
 171
 172 #ifdef __USE_GNU
 173 /* Return nonzero if PATTERN contains any metacharacters.
 174    Metacharacters can be quoted with backslashes if QUOTE is nonzero.
 175
 176    This function is not part of the interface specified by POSIX.2
 177    but several programs want to use it.  */
 178 extern int glob_pattern_p (const char *__pattern, int __quote) __THROW;
 179 #endif
 180
 181 __END_DECLS
 182
 183 #endif /* glob.h  */