posix/glob.h

   1 /* Copyright (C) 1991, 92, 95, 96, 97, 98, 2000 Free Software Foundation, Inc.
   2
   3    The GNU C Library is free software; you can redistribute it and/or
   4    modify it under the terms of the GNU Library General Public License as
   5    published by the Free Software Foundation; either version 2 of the
   6    License, or (at your option) any later version.
   7
   8    The GNU C Library is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11    Library General Public License for more details.
  12
  13    You should have received a copy of the GNU Library General Public
  14    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  15    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16    Boston, MA 02111-1307, USA.  */
  17
  18 #ifndef _GLOB_H
  19 #define _GLOB_H 1
  20
  21 #ifdef  __cplusplus
  22 extern "C" {
  23 #endif
  24
  25 #undef  __ptr_t
  26 #if defined __cplusplus || (defined __STDC__ && __STDC__) || defined WINDOWS32
  27 # if !defined __GLIBC__ || !defined __P
  28 #  undef __P
  29 #  undef __PMT
  30 #  define __P(protos)   protos
  31 #  define __PMT(protos) protos
  32 #  if !defined __GNUC__ || __GNUC__ < 2
  33 #   undef __const
  34 #   define __const const
  35 #  endif
  36 # endif
  37 # define __ptr_t        void *
  38 #else /* Not C++ or ANSI C.  */
  39 # undef __P
  40 # undef __PMT
  41 # define __P(protos)    ()
  42 # define __PMT(protos)  ()
  43 # undef __const
  44 # define __const
  45 # define __ptr_t        char *
  46 #endif /* C++ or ANSI C.  */
  47
  48 /* We need `size_t' for the following definitions.  */
  49 #ifndef __size_t
  50 # if defined __GNUC__ && __GNUC__ >= 2
  51 typedef __SIZE_TYPE__ __size_t;
  52 #  ifdef _XOPEN_SOURCE
  53 typedef __SIZE_TYPE__ size_t;
  54 #  endif
  55 # else
  56 /* This is a guess.  */
  57 typedef unsigned long int __size_t;
  58 # endif
  59 #else
  60 /* The GNU CC stddef.h version defines __size_t as empty.  We need a real
  61    definition.  */
  62 # undef __size_t
  63 # define __size_t size_t
  64 #endif
  65
  66 /* Bits set in the FLAGS argument to `glob'.  */
  67 #define GLOB_ERR        (1 << 0)/* Return on read errors.  */
  68 #define GLOB_MARK       (1 << 1)/* Append a slash to each name.  */
  69 #define GLOB_NOSORT     (1 << 2)/* Don't sort the names.  */
  70 #define GLOB_DOOFFS     (1 << 3)/* Insert PGLOB->gl_offs NULLs.  */
  71 #define GLOB_NOCHECK    (1 << 4)/* If nothing matches, return the pattern.  */
  72 #define GLOB_APPEND     (1 << 5)/* Append to results of a previous call.  */
  73 #define GLOB_NOESCAPE   (1 << 6)/* Backslashes don't quote metacharacters.  */
  74 #define GLOB_PERIOD     (1 << 7)/* Leading `.' can be matched by metachars.  */
  75
  76 #if (!defined _POSIX_C_SOURCE || _POSIX_C_SOURCE < 2 || defined _BSD_SOURCE \
  77      || defined _GNU_SOURCE)
  78 # define GLOB_MAGCHAR    (1 << 8)/* Set in gl_flags if any metachars seen.  */
  79 # define GLOB_ALTDIRFUNC (1 << 9)/* Use gl_opendir et al functions.  */
  80 # define GLOB_BRACE      (1 << 10)/* Expand "{a,b}" to "a" "b".  */
  81 # define GLOB_NOMAGIC    (1 << 11)/* If no magic chars, return the pattern.  */
  82 # define GLOB_TILDE      (1 << 12)/* Expand ~user and ~ to home directories. */
  83 # define GLOB_ONLYDIR    (1 << 13)/* Match only directories.  */
  84 # define GLOB_TILDE_CHECK (1 << 14)/* Like GLOB_TILDE but return an error
  85                                       if the user name is not available.  */
  86 # define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
  87                          GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND|     \
  88                          GLOB_PERIOD|GLOB_ALTDIRFUNC|GLOB_BRACE|     \
  89                          GLOB_NOMAGIC|GLOB_TILDE|GLOB_ONLYDIR|GLOB_TILDE_CHECK)
  90 #else
  91 # define __GLOB_FLAGS   (GLOB_ERR|GLOB_MARK|GLOB_NOSORT|GLOB_DOOFFS| \
  92                          GLOB_NOESCAPE|GLOB_NOCHECK|GLOB_APPEND|     \
  93                          GLOB_PERIOD)
  94 #endif
  95
  96 /* Error returns from `glob'.  */
  97 #define GLOB_NOSPACE    1       /* Ran out of memory.  */
  98 #define GLOB_ABORTED    2       /* Read error.  */
  99 #define GLOB_NOMATCH    3       /* No matches found.  */
 100 #define GLOB_NOSYS      4       /* Not implemented.  */
 101 #ifdef _GNU_SOURCE
 102 /* Previous versions of this file defined GLOB_ABEND instead of
 103    GLOB_ABORTED.  Provide a compatibility definition here.  */
 104 # define GLOB_ABEND GLOB_ABORTED
 105 #endif
 106
 107 /* Structure describing a globbing run.  */
 108 #if !defined _AMIGA && !defined VMS /* Buggy compiler.   */
 109 struct stat;
 110 #endif
 111 typedef struct
 112   {
 113     __size_t gl_pathc;          /* Count of paths matched by the pattern.  */
 114     char **gl_pathv;            /* List of matched pathnames.  */
 115     __size_t gl_offs;           /* Slots to reserve in `gl_pathv'.  */
 116     int gl_flags;               /* Set to FLAGS, maybe | GLOB_MAGCHAR.  */
 117
 118     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
 119        are used instead of the normal file access functions.  */
 120     void (*gl_closedir) __PMT ((void *));
 121     struct dirent *(*gl_readdir) __PMT ((void *));
 122     __ptr_t (*gl_opendir) __PMT ((__const char *));
 123     int (*gl_lstat) __PMT ((__const char *, struct stat *));
 124     int (*gl_stat) __PMT ((__const char *, struct stat *));
 125   } glob_t;
 126
 127 #ifdef _LARGEFILE64_SOURCE
 128 struct stat64;
 129 typedef struct
 130   {
 131     __size_t gl_pathc;
 132     char **gl_pathv;
 133     __size_t gl_offs;
 134     int gl_flags;
 135
 136     /* If the GLOB_ALTDIRFUNC flag is set, the following functions
 137        are used instead of the normal file access functions.  */
 138     void (*gl_closedir) __PMT ((void *));
 139     struct dirent64 *(*gl_readdir) __PMT ((void *));
 140     __ptr_t (*gl_opendir) __PMT ((__const char *));
 141     int (*gl_lstat) __PMT ((__const char *, struct stat64 *));
 142     int (*gl_stat) __PMT ((__const char *, struct stat64 *));
 143   } glob64_t;
 144 #endif
 145
 146 #if _FILE_OFFSET_BITS == 64 && __GNUC__ < 2
 147 # define glob glob64
 148 # define globfree globfree64
 149 #endif
 150
 151 /* Do glob searching for PATTERN, placing results in PGLOB.
 152    The bits defined above may be set in FLAGS.
 153    If a directory cannot be opened or read and ERRFUNC is not nil,
 154    it is called with the pathname that caused the error, and the
 155    `errno' value from the failing call; if it returns non-zero
 156    `glob' returns GLOB_ABEND; if it returns zero, the error is ignored.
 157    If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
 158    Otherwise, `glob' returns zero.  */
 159 #if _FILE_OFFSET_BITS != 64 || __GNUC__ < 2
 160 extern int glob __P ((__const char *__pattern, int __flags,
 161                       int (*__errfunc) (__const char *, int),
 162                       glob_t *__pglob));
 163
 164 /* Free storage allocated in PGLOB by a previous `glob' call.  */
 165 extern void globfree __P ((glob_t *__pglob));
 166 #else
 167 extern int glob __P ((__const char *__pattern, int __flags,
 168                       int (*__errfunc) (__const char *, int),
 169                       glob_t *__pglob)) __asm__ ("glob64");
 170
 171 extern void globfree __P ((glob_t *__pglob)) __asm__ ("globfree64");
 172 #endif
 173
 174 #ifdef _LARGEFILE64_SOURCE
 175 extern int glob64 __P ((__const char *__pattern, int __flags,
 176                         int (*__errfunc) (__const char *, int),
 177                         glob64_t *__pglob));
 178
 179 extern void globfree64 __P ((glob64_t *__pglob));
 180 #endif
 181
 182
 183 #ifdef _GNU_SOURCE
 184 /* Return nonzero if PATTERN contains any metacharacters.
 185    Metacharacters can be quoted with backslashes if QUOTE is nonzero.
 186
 187    This function is not part of the interface specified by POSIX.2
 188    but several programs want to use it.  */
 189 extern int glob_pattern_p __P ((__const char *__pattern, int __quote));
 190 #endif
 191
 192 #ifdef  __cplusplus
 193 }
 194 #endif
 195
 196 #endif /* glob.h  */