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https://sourceware.org/git/glibc.git
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1115 lines
26 KiB
C
1115 lines
26 KiB
C
/* Copyright (C) 1991,92,93,94,95,96,97,98 Free Software Foundation, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
|
||
License, or (at your option) any later version.
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||
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This library is distributed in the hope that it will be useful,
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||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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||
Library General Public License for more details.
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||
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||
You should have received a copy of the GNU Library General Public
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||
License along with this library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* AIX requires this to be the first thing in the file. */
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#if defined _AIX && !defined __GNUC__
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#pragma alloca
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#endif
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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/* Enable GNU extensions in glob.h. */
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE 1
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#endif
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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/* Outcomment the following line for production quality code. */
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/* #define NDEBUG 1 */
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#include <assert.h>
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#include <stdio.h> /* Needed on stupid SunOS for assert. */
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/* Comment out all this code if we are using the GNU C Library, and are not
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actually compiling the library itself. This code is part of the GNU C
|
||
Library, but also included in many other GNU distributions. Compiling
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||
and linking in this code is a waste when using the GNU C library
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||
(especially if it is a shared library). Rather than having every GNU
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||
program understand `configure --with-gnu-libc' and omit the object files,
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it is simpler to just do this in the source for each such file. */
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#define GLOB_INTERFACE_VERSION 1
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#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
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# include <gnu-versions.h>
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# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION
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# define ELIDE_CODE
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# endif
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#endif
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#ifndef ELIDE_CODE
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||
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#if defined STDC_HEADERS || defined __GNU_LIBRARY__
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# include <stddef.h>
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#endif
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#if defined HAVE_UNISTD_H || defined _LIBC
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# include <unistd.h>
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# ifndef POSIX
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# ifdef _POSIX_VERSION
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# define POSIX
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# endif
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# endif
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#endif
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#if !defined _AMIGA && !defined VMS && !defined WINDOWS32
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# include <pwd.h>
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#endif
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#if !defined __GNU_LIBRARY__ && !defined STDC_HEADERS
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extern int errno;
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#endif
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#ifndef __set_errno
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# define __set_errno(val) errno = (val)
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#endif
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#ifndef NULL
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# define NULL 0
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#endif
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#if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__
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# include <dirent.h>
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# define NAMLEN(dirent) strlen((dirent)->d_name)
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#else
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# define dirent direct
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# define NAMLEN(dirent) (dirent)->d_namlen
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# ifdef HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# ifdef HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# ifdef HAVE_NDIR_H
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# include <ndir.h>
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# endif
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# ifdef HAVE_VMSDIR_H
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# include "vmsdir.h"
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# endif /* HAVE_VMSDIR_H */
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#endif
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/* In GNU systems, <dirent.h> defines this macro for us. */
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#ifdef _D_NAMLEN
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# undef NAMLEN
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# define NAMLEN(d) _D_NAMLEN(d)
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#endif
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/* When used in the GNU libc the symbol _DIRENT_HAVE_D_TYPE is available
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if the `d_type' member for `struct dirent' is available. */
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#ifdef _DIRENT_HAVE_D_TYPE
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# define HAVE_D_TYPE 1
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#endif
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#if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__
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/* Posix does not require that the d_ino field be present, and some
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systems do not provide it. */
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# define REAL_DIR_ENTRY(dp) 1
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#else
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# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
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#endif /* POSIX */
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#if defined STDC_HEADERS || defined __GNU_LIBRARY__
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# include <stdlib.h>
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# include <string.h>
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# define ANSI_STRING
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#else /* No standard headers. */
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extern char *getenv ();
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# ifdef HAVE_STRING_H
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# include <string.h>
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# define ANSI_STRING
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# else
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# include <strings.h>
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# endif
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# ifdef HAVE_MEMORY_H
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# include <memory.h>
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# endif
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extern char *malloc (), *realloc ();
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extern void free ();
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extern void qsort ();
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extern void abort (), exit ();
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#endif /* Standard headers. */
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#ifndef ANSI_STRING
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# ifndef bzero
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extern void bzero ();
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# endif
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# ifndef bcopy
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extern void bcopy ();
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# endif
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# define memcpy(d, s, n) bcopy ((s), (d), (n))
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# define strrchr rindex
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/* memset is only used for zero here, but let's be paranoid. */
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# define memset(s, better_be_zero, n) \
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((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0)))
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#endif /* Not ANSI_STRING. */
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#if !defined HAVE_STRCOLL && !defined _LIBC
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# define strcoll strcmp
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#endif
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#if !defined HAVE_MEMPCPY && __GLIBC__ - 0 == 2 && __GLIBC_MINOR__ >= 1
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# define HAVE_MEMPCPY 1
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# define mempcpy(Dest, Src, Len) __mempcpy (Dest, Src, Len)
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#endif
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#ifndef __GNU_LIBRARY__
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# ifdef __GNUC__
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__inline
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# endif
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# ifndef __SASC
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# ifdef WINDOWS32
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static void *
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# else
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static char *
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# endif
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my_realloc (p, n)
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char *p;
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unsigned int n;
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{
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/* These casts are the for sake of the broken Ultrix compiler,
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which warns of illegal pointer combinations otherwise. */
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if (p == NULL)
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return (char *) malloc (n);
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return (char *) realloc (p, n);
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}
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# define realloc my_realloc
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# endif /* __SASC */
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#endif /* __GNU_LIBRARY__ */
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#if !defined __alloca && !defined __GNU_LIBRARY__
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# ifdef __GNUC__
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# undef alloca
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# define alloca(n) __builtin_alloca (n)
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# else /* Not GCC. */
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# ifdef HAVE_ALLOCA_H
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# include <alloca.h>
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# else /* Not HAVE_ALLOCA_H. */
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# ifndef _AIX
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# ifdef WINDOWS32
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# include <malloc.h>
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# else
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extern char *alloca ();
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# endif /* WINDOWS32 */
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# endif /* Not _AIX. */
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# endif /* sparc or HAVE_ALLOCA_H. */
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# endif /* GCC. */
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# define __alloca alloca
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#endif
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#ifndef __GNU_LIBRARY__
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# define __stat stat
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# ifdef STAT_MACROS_BROKEN
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# undef S_ISDIR
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# endif
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# ifndef S_ISDIR
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# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
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# endif
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#endif
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#if !(defined STDC_HEADERS || defined __GNU_LIBRARY__)
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# undef size_t
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# define size_t unsigned int
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#endif
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/* Some system header files erroneously define these.
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We want our own definitions from <fnmatch.h> to take precedence. */
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#undef FNM_PATHNAME
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#undef FNM_NOESCAPE
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#undef FNM_PERIOD
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#include <fnmatch.h>
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/* Some system header files erroneously define these.
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We want our own definitions from <glob.h> to take precedence. */
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#undef GLOB_ERR
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#undef GLOB_MARK
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#undef GLOB_NOSORT
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#undef GLOB_DOOFFS
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#undef GLOB_NOCHECK
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#undef GLOB_APPEND
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#undef GLOB_NOESCAPE
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#undef GLOB_PERIOD
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#include <glob.h>
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static
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#if __GNUC__ - 0 >= 2
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inline
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#endif
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const char *next_brace_sub __P ((const char *begin));
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static int glob_in_dir __P ((const char *pattern, const char *directory,
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int flags,
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int (*errfunc) __P ((const char *, int)),
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glob_t *pglob));
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static int prefix_array __P ((const char *prefix, char **array, size_t n));
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static int collated_compare __P ((const __ptr_t, const __ptr_t));
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/* Find the end of the sub-pattern in a brace expression. We define
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this as an inline function if the compiler permits. */
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static
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#if __GNUC__ - 0 >= 2
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inline
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#endif
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const char *
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next_brace_sub (begin)
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const char *begin;
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{
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unsigned int depth = 0;
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const char *cp = begin;
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while (1)
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{
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if (depth == 0)
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{
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if (*cp != ',' && *cp != '}' && *cp != '\0')
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{
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if (*cp == '{')
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++depth;
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++cp;
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continue;
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}
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}
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else
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{
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while (*cp != '\0' && (*cp != '}' || depth > 0))
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{
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if (*cp == '}')
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--depth;
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++cp;
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}
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if (*cp == '\0')
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/* An incorrectly terminated brace expression. */
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return NULL;
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continue;
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}
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break;
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}
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return cp;
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}
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/* Do glob searching for PATTERN, placing results in PGLOB.
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The bits defined above may be set in FLAGS.
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If a directory cannot be opened or read and ERRFUNC is not nil,
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it is called with the pathname that caused the error, and the
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`errno' value from the failing call; if it returns non-zero
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`glob' returns GLOB_ABORTED; if it returns zero, the error is ignored.
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If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned.
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Otherwise, `glob' returns zero. */
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int
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glob (pattern, flags, errfunc, pglob)
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const char *pattern;
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int flags;
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int (*errfunc) __P ((const char *, int));
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glob_t *pglob;
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{
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const char *filename;
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char *dirname;
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size_t dirlen;
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int status;
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int oldcount;
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if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0)
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{
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__set_errno (EINVAL);
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return -1;
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}
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if (flags & GLOB_BRACE)
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{
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const char *begin = strchr (pattern, '{');
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if (begin != NULL)
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{
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/* Allocate working buffer large enough for our work. Note that
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we have at least an opening and closing brace. */
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int firstc;
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char *alt_start;
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const char *p;
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const char *next;
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const char *rest;
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size_t rest_len;
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#ifdef __GNUC__
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char onealt[strlen (pattern) - 1];
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#else
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char *onealt = (char *) malloc (strlen (pattern) - 1);
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if (onealt == NULL)
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{
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if (!(flags & GLOB_APPEND))
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globfree (pglob);
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return GLOB_NOSPACE;
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}
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#endif
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/* We know the prefix for all sub-patterns. */
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#ifdef HAVE_MEMPCPY
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alt_start = mempcpy (onealt, pattern, begin - pattern);
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#else
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memcpy (onealt, pattern, begin - pattern);
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alt_start = &onealt[begin - pattern];
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#endif
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/* Find the first sub-pattern and at the same time find the
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rest after the closing brace. */
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next = next_brace_sub (begin + 1);
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if (next == NULL)
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{
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/* It is an illegal expression. */
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#ifndef __GNUC__
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free (onealt);
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#endif
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return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
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}
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/* Now find the end of the whole brace expression. */
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rest = next;
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while (*rest != '}')
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{
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rest = next_brace_sub (rest + 1);
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if (rest == NULL)
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{
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/* It is an illegal expression. */
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#ifndef __GNUC__
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free (onealt);
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#endif
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return glob (pattern, flags & ~GLOB_BRACE, errfunc, pglob);
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}
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}
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/* Please note that we now can be sure the brace expression
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is well-formed. */
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rest_len = strlen (++rest) + 1;
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/* We have a brace expression. BEGIN points to the opening {,
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NEXT points past the terminator of the first element, and END
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points past the final }. We will accumulate result names from
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recursive runs for each brace alternative in the buffer using
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GLOB_APPEND. */
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if (!(flags & GLOB_APPEND))
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{
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/* This call is to set a new vector, so clear out the
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vector so we can append to it. */
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pglob->gl_pathc = 0;
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pglob->gl_pathv = NULL;
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}
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firstc = pglob->gl_pathc;
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p = begin + 1;
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while (1)
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{
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int result;
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||
|
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/* Construct the new glob expression. */
|
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#ifdef HAVE_MEMPCPY
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mempcpy (mempcpy (alt_start, p, next - p), rest, rest_len);
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#else
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memcpy (alt_start, p, next - p);
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memcpy (&alt_start[next - p], rest, rest_len);
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#endif
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result = glob (onealt,
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((flags & ~(GLOB_NOCHECK|GLOB_NOMAGIC))
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| GLOB_APPEND), errfunc, pglob);
|
||
|
||
/* If we got an error, return it. */
|
||
if (result && result != GLOB_NOMATCH)
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{
|
||
#ifndef __GNUC__
|
||
free (onealt);
|
||
#endif
|
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if (!(flags & GLOB_APPEND))
|
||
globfree (pglob);
|
||
return result;
|
||
}
|
||
|
||
if (*next == '}')
|
||
/* We saw the last entry. */
|
||
break;
|
||
|
||
p = next + 1;
|
||
next = next_brace_sub (p);
|
||
assert (next != NULL);
|
||
}
|
||
|
||
#ifndef __GNUC__
|
||
free (onealt);
|
||
#endif
|
||
|
||
if (pglob->gl_pathc != firstc)
|
||
/* We found some entries. */
|
||
return 0;
|
||
else if (!(flags & (GLOB_NOCHECK|GLOB_NOMAGIC)))
|
||
return GLOB_NOMATCH;
|
||
}
|
||
}
|
||
|
||
/* Find the filename. */
|
||
filename = strrchr (pattern, '/');
|
||
if (filename == NULL)
|
||
{
|
||
filename = pattern;
|
||
#ifdef _AMIGA
|
||
dirname = (char *) "";
|
||
#else
|
||
dirname = (char *) ".";
|
||
#endif
|
||
dirlen = 0;
|
||
}
|
||
else if (filename == pattern)
|
||
{
|
||
/* "/pattern". */
|
||
dirname = (char *) "/";
|
||
dirlen = 1;
|
||
++filename;
|
||
}
|
||
else
|
||
{
|
||
dirlen = filename - pattern;
|
||
dirname = (char *) __alloca (dirlen + 1);
|
||
#ifdef HAVE_MEMPCPY
|
||
*((char *) mempcpy (dirname, pattern, dirlen)) = '\0';
|
||
#else
|
||
memcpy (dirname, pattern, dirlen);
|
||
dirname[dirlen] = '\0';
|
||
#endif
|
||
++filename;
|
||
}
|
||
|
||
if (filename[0] == '\0' && dirlen > 1)
|
||
/* "pattern/". Expand "pattern", appending slashes. */
|
||
{
|
||
int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob);
|
||
if (val == 0)
|
||
pglob->gl_flags = (pglob->gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK);
|
||
return val;
|
||
}
|
||
|
||
if (!(flags & GLOB_APPEND))
|
||
{
|
||
pglob->gl_pathc = 0;
|
||
pglob->gl_pathv = NULL;
|
||
}
|
||
|
||
oldcount = pglob->gl_pathc;
|
||
|
||
#ifndef VMS
|
||
if ((flags & GLOB_TILDE) && dirname[0] == '~')
|
||
{
|
||
if (dirname[1] == '\0' || dirname[1] == '/')
|
||
{
|
||
/* Look up home directory. */
|
||
char *home_dir = getenv ("HOME");
|
||
# ifdef _AMIGA
|
||
if (home_dir == NULL || home_dir[0] == '\0')
|
||
home_dir = "SYS:";
|
||
# else
|
||
# ifdef WINDOWS32
|
||
if (home_dir == NULL || home_dir[0] == '\0')
|
||
home_dir = "c:/users/default"; /* poor default */
|
||
# else
|
||
if (home_dir == NULL || home_dir[0] == '\0')
|
||
{
|
||
int success;
|
||
# if defined HAVE_GETLOGIN_R || defined _LIBC
|
||
extern int getlogin_r __P ((char *, size_t));
|
||
size_t buflen = sysconf (_SC_LOGIN_NAME_MAX) + 1;
|
||
char *name;
|
||
|
||
if (buflen == 0)
|
||
/* `sysconf' does not support _SC_LOGIN_NAME_MAX. Try
|
||
a moderate value. */
|
||
buflen = 16;
|
||
name = (char *) __alloca (buflen);
|
||
|
||
success = getlogin_r (name, buflen) >= 0;
|
||
# else
|
||
extern char *getlogin __P ((void));
|
||
char *name;
|
||
|
||
success = (name = getlogin ()) != NULL;
|
||
# endif
|
||
if (success)
|
||
{
|
||
# if defined HAVE_GETPWNAM_R || defined _LIBC
|
||
size_t pwbuflen = sysconf (_SC_GETPW_R_SIZE_MAX);
|
||
char *pwtmpbuf;
|
||
struct passwd pwbuf, *p;
|
||
|
||
pwtmpbuf = (char *) __alloca (pwbuflen);
|
||
|
||
success = (__getpwnam_r (name, &pwbuf, pwtmpbuf,
|
||
pwbuflen, &p) >= 0);
|
||
# else
|
||
struct passwd *p = getpwnam (name);
|
||
success = p != NULL;
|
||
# endif
|
||
if (success)
|
||
home_dir = p->pw_dir;
|
||
}
|
||
}
|
||
if (home_dir == NULL || home_dir[0] == '\0')
|
||
home_dir = (char *) "~"; /* No luck. */
|
||
# endif /* WINDOWS32 */
|
||
# endif
|
||
/* Now construct the full directory. */
|
||
if (dirname[1] == '\0')
|
||
dirname = home_dir;
|
||
else
|
||
{
|
||
char *newp;
|
||
size_t home_len = strlen (home_dir);
|
||
newp = (char *) __alloca (home_len + dirlen);
|
||
# ifdef HAVE_MEMPCPY
|
||
mempcpy (mempcpy (newp, home_dir, home_len),
|
||
&dirname[1], dirlen);
|
||
# else
|
||
memcpy (newp, home_dir, home_len);
|
||
memcpy (&newp[home_len], &dirname[1], dirlen);
|
||
# endif
|
||
dirname = newp;
|
||
}
|
||
}
|
||
# if !defined _AMIGA && !defined WINDOWS32
|
||
else
|
||
{
|
||
char *end_name = strchr (dirname, '/');
|
||
char *user_name;
|
||
char *home_dir;
|
||
|
||
if (end_name == NULL)
|
||
user_name = dirname + 1;
|
||
else
|
||
{
|
||
user_name = (char *) __alloca (end_name - dirname);
|
||
# ifdef HAVE_MEMPCPY
|
||
*((char *) mempcpy (user_name, dirname + 1, end_name - dirname))
|
||
= '\0';
|
||
# else
|
||
memcpy (user_name, dirname + 1, end_name - dirname);
|
||
user_name[end_name - dirname - 1] = '\0';
|
||
# endif
|
||
}
|
||
|
||
/* Look up specific user's home directory. */
|
||
{
|
||
# if defined HAVE_GETPWNAM_R || defined _LIBC
|
||
size_t buflen = sysconf (_SC_GETPW_R_SIZE_MAX);
|
||
char *pwtmpbuf = (char *) __alloca (buflen);
|
||
struct passwd pwbuf, *p;
|
||
if (__getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) >= 0)
|
||
home_dir = p->pw_dir;
|
||
else
|
||
home_dir = NULL;
|
||
# else
|
||
struct passwd *p = getpwnam (user_name);
|
||
if (p != NULL)
|
||
home_dir = p->pw_dir;
|
||
else
|
||
home_dir = NULL;
|
||
# endif
|
||
}
|
||
/* If we found a home directory use this. */
|
||
if (home_dir != NULL)
|
||
{
|
||
char *newp;
|
||
size_t home_len = strlen (home_dir);
|
||
size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
|
||
newp = (char *) __alloca (home_len + rest_len + 1);
|
||
# ifdef HAVE_MEMPCPY
|
||
*((char *) mempcpy (mempcpy (newp, home_dir, home_len),
|
||
end_name, rest_len)) = '\0';
|
||
# else
|
||
memcpy (newp, home_dir, home_len);
|
||
memcpy (&newp[home_len], end_name, rest_len);
|
||
newp[home_len + rest_len] = '\0';
|
||
# endif
|
||
dirname = newp;
|
||
}
|
||
}
|
||
# endif /* Not Amiga && not WINDOWS32. */
|
||
}
|
||
#endif /* Not VMS. */
|
||
|
||
if (__glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE)))
|
||
{
|
||
/* The directory name contains metacharacters, so we
|
||
have to glob for the directory, and then glob for
|
||
the pattern in each directory found. */
|
||
glob_t dirs;
|
||
register int i;
|
||
|
||
status = glob (dirname,
|
||
((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE))
|
||
| GLOB_NOSORT | GLOB_ONLYDIR),
|
||
errfunc, &dirs);
|
||
if (status != 0)
|
||
return status;
|
||
|
||
/* We have successfully globbed the preceding directory name.
|
||
For each name we found, call glob_in_dir on it and FILENAME,
|
||
appending the results to PGLOB. */
|
||
for (i = 0; i < dirs.gl_pathc; ++i)
|
||
{
|
||
int oldcount;
|
||
|
||
#ifdef SHELL
|
||
{
|
||
/* Make globbing interruptible in the bash shell. */
|
||
extern int interrupt_state;
|
||
|
||
if (interrupt_state)
|
||
{
|
||
globfree (&dirs);
|
||
globfree (&files);
|
||
return GLOB_ABORTED;
|
||
}
|
||
}
|
||
#endif /* SHELL. */
|
||
|
||
oldcount = pglob->gl_pathc;
|
||
status = glob_in_dir (filename, dirs.gl_pathv[i],
|
||
((flags | GLOB_APPEND)
|
||
& ~(GLOB_NOCHECK | GLOB_ERR)),
|
||
errfunc, pglob);
|
||
if (status == GLOB_NOMATCH)
|
||
/* No matches in this directory. Try the next. */
|
||
continue;
|
||
|
||
if (status != 0)
|
||
{
|
||
globfree (&dirs);
|
||
globfree (pglob);
|
||
return status;
|
||
}
|
||
|
||
/* Stick the directory on the front of each name. */
|
||
if (prefix_array (dirs.gl_pathv[i],
|
||
&pglob->gl_pathv[oldcount],
|
||
pglob->gl_pathc - oldcount))
|
||
{
|
||
globfree (&dirs);
|
||
globfree (pglob);
|
||
return GLOB_NOSPACE;
|
||
}
|
||
}
|
||
|
||
flags |= GLOB_MAGCHAR;
|
||
|
||
if (pglob->gl_pathc == oldcount)
|
||
/* No matches. */
|
||
if (flags & GLOB_NOCHECK)
|
||
{
|
||
size_t len = strlen (pattern) + 1;
|
||
char *patcopy = (char *) malloc (len);
|
||
if (patcopy == NULL)
|
||
return GLOB_NOSPACE;
|
||
memcpy (patcopy, pattern, len);
|
||
|
||
pglob->gl_pathv
|
||
= (char **) realloc (pglob->gl_pathv,
|
||
(pglob->gl_pathc +
|
||
((flags & GLOB_DOOFFS) ?
|
||
pglob->gl_offs : 0) +
|
||
1 + 1) *
|
||
sizeof (char *));
|
||
if (pglob->gl_pathv == NULL)
|
||
{
|
||
free (patcopy);
|
||
return GLOB_NOSPACE;
|
||
}
|
||
|
||
if (flags & GLOB_DOOFFS)
|
||
while (pglob->gl_pathc < pglob->gl_offs)
|
||
pglob->gl_pathv[pglob->gl_pathc++] = NULL;
|
||
|
||
pglob->gl_pathv[pglob->gl_pathc++] = patcopy;
|
||
pglob->gl_pathv[pglob->gl_pathc] = NULL;
|
||
pglob->gl_flags = flags;
|
||
}
|
||
else
|
||
return GLOB_NOMATCH;
|
||
}
|
||
else
|
||
{
|
||
status = glob_in_dir (filename, dirname, flags, errfunc, pglob);
|
||
if (status != 0)
|
||
return status;
|
||
|
||
if (dirlen > 0)
|
||
{
|
||
/* Stick the directory on the front of each name. */
|
||
if (prefix_array (dirname,
|
||
&pglob->gl_pathv[oldcount],
|
||
pglob->gl_pathc - oldcount))
|
||
{
|
||
globfree (pglob);
|
||
return GLOB_NOSPACE;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (flags & GLOB_MARK)
|
||
{
|
||
/* Append slashes to directory names. */
|
||
int i;
|
||
struct stat st;
|
||
for (i = oldcount; i < pglob->gl_pathc; ++i)
|
||
if (((flags & GLOB_ALTDIRFUNC) ?
|
||
(*pglob->gl_stat) (pglob->gl_pathv[i], &st) :
|
||
__stat (pglob->gl_pathv[i], &st)) == 0 &&
|
||
S_ISDIR (st.st_mode))
|
||
{
|
||
size_t len = strlen (pglob->gl_pathv[i]) + 2;
|
||
char *new = realloc (pglob->gl_pathv[i], len);
|
||
if (new == NULL)
|
||
{
|
||
globfree (pglob);
|
||
return GLOB_NOSPACE;
|
||
}
|
||
strcpy (&new[len - 2], "/");
|
||
pglob->gl_pathv[i] = new;
|
||
}
|
||
}
|
||
|
||
if (!(flags & GLOB_NOSORT))
|
||
/* Sort the vector. */
|
||
qsort ((__ptr_t) &pglob->gl_pathv[oldcount],
|
||
pglob->gl_pathc - oldcount,
|
||
sizeof (char *), collated_compare);
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Free storage allocated in PGLOB by a previous `glob' call. */
|
||
void
|
||
globfree (pglob)
|
||
register glob_t *pglob;
|
||
{
|
||
if (pglob->gl_pathv != NULL)
|
||
{
|
||
register int i;
|
||
for (i = 0; i < pglob->gl_pathc; ++i)
|
||
if (pglob->gl_pathv[i] != NULL)
|
||
free ((__ptr_t) pglob->gl_pathv[i]);
|
||
free ((__ptr_t) pglob->gl_pathv);
|
||
}
|
||
}
|
||
|
||
|
||
/* Do a collated comparison of A and B. */
|
||
static int
|
||
collated_compare (a, b)
|
||
const __ptr_t a;
|
||
const __ptr_t b;
|
||
{
|
||
const char *const s1 = *(const char *const * const) a;
|
||
const char *const s2 = *(const char *const * const) b;
|
||
|
||
if (s1 == s2)
|
||
return 0;
|
||
if (s1 == NULL)
|
||
return 1;
|
||
if (s2 == NULL)
|
||
return -1;
|
||
return strcoll (s1, s2);
|
||
}
|
||
|
||
|
||
/* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's
|
||
elements in place. Return nonzero if out of memory, zero if successful.
|
||
A slash is inserted between DIRNAME and each elt of ARRAY,
|
||
unless DIRNAME is just "/". Each old element of ARRAY is freed. */
|
||
static int
|
||
prefix_array (dirname, array, n)
|
||
const char *dirname;
|
||
char **array;
|
||
size_t n;
|
||
{
|
||
register size_t i;
|
||
size_t dirlen = strlen (dirname);
|
||
|
||
if (dirlen == 1 && dirname[0] == '/')
|
||
/* DIRNAME is just "/", so normal prepending would get us "//foo".
|
||
We want "/foo" instead, so don't prepend any chars from DIRNAME. */
|
||
dirlen = 0;
|
||
|
||
for (i = 0; i < n; ++i)
|
||
{
|
||
size_t eltlen = strlen (array[i]) + 1;
|
||
char *new = (char *) malloc (dirlen + 1 + eltlen);
|
||
if (new == NULL)
|
||
{
|
||
while (i > 0)
|
||
free ((__ptr_t) array[--i]);
|
||
return 1;
|
||
}
|
||
|
||
#ifdef HAVE_MEMPCPY
|
||
{
|
||
char *endp = (char *) mempcpy (new, dirname, dirlen);
|
||
*endp++ = '/';
|
||
mempcpy (endp, array[i], eltlen);
|
||
}
|
||
#else
|
||
memcpy (new, dirname, dirlen);
|
||
new[dirlen] = '/';
|
||
memcpy (&new[dirlen + 1], array[i], eltlen);
|
||
#endif
|
||
free ((__ptr_t) array[i]);
|
||
array[i] = new;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Return nonzero if PATTERN contains any metacharacters.
|
||
Metacharacters can be quoted with backslashes if QUOTE is nonzero. */
|
||
int
|
||
__glob_pattern_p (pattern, quote)
|
||
const char *pattern;
|
||
int quote;
|
||
{
|
||
register const char *p;
|
||
int open = 0;
|
||
|
||
for (p = pattern; *p != '\0'; ++p)
|
||
switch (*p)
|
||
{
|
||
case '?':
|
||
case '*':
|
||
return 1;
|
||
|
||
case '\\':
|
||
if (quote && p[1] != '\0')
|
||
++p;
|
||
break;
|
||
|
||
case '[':
|
||
open = 1;
|
||
break;
|
||
|
||
case ']':
|
||
if (open)
|
||
return 1;
|
||
break;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
#ifdef _LIBC
|
||
weak_alias (__glob_pattern_p, glob_pattern_p)
|
||
#endif
|
||
|
||
|
||
/* Like `glob', but PATTERN is a final pathname component,
|
||
and matches are searched for in DIRECTORY.
|
||
The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done.
|
||
The GLOB_APPEND flag is assumed to be set (always appends). */
|
||
static int
|
||
glob_in_dir (pattern, directory, flags, errfunc, pglob)
|
||
const char *pattern;
|
||
const char *directory;
|
||
int flags;
|
||
int (*errfunc) __P ((const char *, int));
|
||
glob_t *pglob;
|
||
{
|
||
__ptr_t stream;
|
||
|
||
struct globlink
|
||
{
|
||
struct globlink *next;
|
||
char *name;
|
||
};
|
||
struct globlink *names = NULL;
|
||
size_t nfound;
|
||
int meta;
|
||
int save;
|
||
|
||
stream = ((flags & GLOB_ALTDIRFUNC) ?
|
||
(*pglob->gl_opendir) (directory) :
|
||
(__ptr_t) opendir (directory));
|
||
if (stream == NULL)
|
||
{
|
||
if ((errfunc != NULL && (*errfunc) (directory, errno)) ||
|
||
(flags & GLOB_ERR))
|
||
return GLOB_ABORTED;
|
||
nfound = 0;
|
||
meta = 0;
|
||
}
|
||
else if (pattern[0] == '\0')
|
||
{
|
||
/* This is a special case for matching directories like in
|
||
"*a/". */
|
||
names = (struct globlink *) __alloca (sizeof (struct globlink));
|
||
names->name = (char *) malloc (1);
|
||
if (names->name == NULL)
|
||
goto memory_error;
|
||
names->name[0] = '\0';
|
||
names->next = NULL;
|
||
nfound = 1;
|
||
meta = 0;
|
||
}
|
||
else
|
||
{
|
||
nfound = 0;
|
||
meta = __glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE));
|
||
if(meta)
|
||
flags |= GLOB_MAGCHAR;
|
||
|
||
while (1)
|
||
{
|
||
const char *name;
|
||
size_t len;
|
||
struct dirent *d = ((flags & GLOB_ALTDIRFUNC) ?
|
||
(*pglob->gl_readdir) (stream) :
|
||
readdir ((DIR *) stream));
|
||
if (d == NULL)
|
||
break;
|
||
if (! REAL_DIR_ENTRY (d))
|
||
continue;
|
||
|
||
#ifdef HAVE_D_TYPE
|
||
/* If we shall match only directories use the information
|
||
provided by the dirent call if possible. */
|
||
if ((flags & GLOB_ONLYDIR)
|
||
&& d->d_type != DT_UNKNOWN && d->d_type != DT_DIR)
|
||
continue;
|
||
#endif
|
||
|
||
name = d->d_name;
|
||
|
||
if ((!meta && strcmp (pattern, name) == 0)
|
||
|| fnmatch (pattern, name,
|
||
(!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) |
|
||
((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)
|
||
#if defined _AMIGA || defined VMS
|
||
| FNM_CASEFOLD
|
||
#endif
|
||
) == 0)
|
||
{
|
||
struct globlink *new
|
||
= (struct globlink *) __alloca (sizeof (struct globlink));
|
||
len = NAMLEN (d);
|
||
new->name = (char *) malloc (len + 1);
|
||
if (new->name == NULL)
|
||
goto memory_error;
|
||
#ifdef HAVE_MEMPCPY
|
||
*((char *) mempcpy ((__ptr_t) new->name, name, len)) = '\0';
|
||
#else
|
||
memcpy ((__ptr_t) new->name, name, len);
|
||
new->name[len] = '\0';
|
||
#endif
|
||
new->next = names;
|
||
names = new;
|
||
++nfound;
|
||
if (!meta)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (nfound == 0 && (flags & GLOB_NOMAGIC) && !meta)
|
||
flags |= GLOB_NOCHECK;
|
||
|
||
if (nfound == 0 && (flags & GLOB_NOCHECK))
|
||
{
|
||
size_t len = strlen (pattern);
|
||
nfound = 1;
|
||
names = (struct globlink *) __alloca (sizeof (struct globlink));
|
||
names->next = NULL;
|
||
names->name = (char *) malloc (len + 1);
|
||
if (names->name == NULL)
|
||
goto memory_error;
|
||
#ifdef HAVE_MEMPCPY
|
||
*((char *) mempcpy (names->name, pattern, len)) = '\0';
|
||
#else
|
||
memcpy (names->name, pattern, len);
|
||
names->name[len] = '\0';
|
||
#endif
|
||
}
|
||
|
||
if (nfound != 0)
|
||
{
|
||
pglob->gl_pathv
|
||
= (char **) realloc (pglob->gl_pathv,
|
||
(pglob->gl_pathc +
|
||
((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) +
|
||
nfound + 1) *
|
||
sizeof (char *));
|
||
if (pglob->gl_pathv == NULL)
|
||
goto memory_error;
|
||
|
||
if (flags & GLOB_DOOFFS)
|
||
while (pglob->gl_pathc < pglob->gl_offs)
|
||
pglob->gl_pathv[pglob->gl_pathc++] = NULL;
|
||
|
||
for (; names != NULL; names = names->next)
|
||
pglob->gl_pathv[pglob->gl_pathc++] = names->name;
|
||
pglob->gl_pathv[pglob->gl_pathc] = NULL;
|
||
|
||
pglob->gl_flags = flags;
|
||
}
|
||
|
||
save = errno;
|
||
if (flags & GLOB_ALTDIRFUNC)
|
||
(*pglob->gl_closedir) (stream);
|
||
else
|
||
closedir ((DIR *) stream);
|
||
__set_errno (save);
|
||
|
||
return nfound == 0 ? GLOB_NOMATCH : 0;
|
||
|
||
memory_error:
|
||
{
|
||
int save = errno;
|
||
if (flags & GLOB_ALTDIRFUNC)
|
||
(*pglob->gl_closedir) (stream);
|
||
else
|
||
closedir ((DIR *) stream);
|
||
__set_errno (save);
|
||
}
|
||
while (names != NULL)
|
||
{
|
||
if (names->name != NULL)
|
||
free ((__ptr_t) names->name);
|
||
names = names->next;
|
||
}
|
||
return GLOB_NOSPACE;
|
||
}
|
||
|
||
#endif /* Not ELIDE_CODE. */
|