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b29362d8dd
to the exclude pattern. Change this so that "grep --exclude='*/.svn/*' -[Rr] foo *" DWIM. Obtained from: dave+news001@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (Dave Gibson) Obtained from: comp.unix.questions [Thu, 15 Mar 2007 18:54:38 +0000] Obtained from: http://unix.derkeiler.com/Newsgroups/comp.unix.questions/2007-03/msg00046.html
183 lines
4.2 KiB
C
183 lines
4.2 KiB
C
/* savedir.c -- save the list of files in a directory in a string
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Copyright (C) 1990, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <sys/types.h>
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#if HAVE_DIRENT_H
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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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# if HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# if HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# if HAVE_NDIR_H
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# include <ndir.h>
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# endif
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#endif
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#ifdef CLOSEDIR_VOID
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/* Fake a return value. */
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# define CLOSEDIR(d) (closedir (d), 0)
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#else
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# define CLOSEDIR(d) closedir (d)
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#endif
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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# include <string.h>
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#else
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char *malloc ();
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char *realloc ();
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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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#ifndef stpcpy
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char *stpcpy ();
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#endif
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#include <fnmatch.h>
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#include "savedir.h"
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char *path;
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size_t pathlen;
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static int
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isdir1 (const char *dir, const char *file)
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{
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int status;
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int slash;
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size_t dirlen = strlen (dir);
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size_t filelen = strlen (file);
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if ((dirlen + filelen + 2) > pathlen)
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{
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path = calloc (dirlen + 1 + filelen + 1, sizeof (*path));
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pathlen = dirlen + filelen + 2;
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}
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strcpy (path, dir);
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slash = (path[dirlen] != '/');
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path[dirlen] = '/';
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strcpy (path + dirlen + slash , file);
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status = isdir (path);
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return status;
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}
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/* Return a freshly allocated string containing the filenames
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in directory DIR, separated by '\0' characters;
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the end is marked by two '\0' characters in a row.
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NAME_SIZE is the number of bytes to initially allocate
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for the string; it will be enlarged as needed.
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Return NULL if DIR cannot be opened or if out of memory. */
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char *
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savedir (const char *dir, off_t name_size, struct exclude *included_patterns,
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struct exclude *excluded_patterns)
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{
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DIR *dirp;
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struct dirent *dp;
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char *name_space;
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char *namep;
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dirp = opendir (dir);
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if (dirp == NULL)
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return NULL;
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/* Be sure name_size is at least `1' so there's room for
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the final NUL byte. */
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if (name_size <= 0)
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name_size = 1;
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name_space = (char *) malloc (name_size);
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if (name_space == NULL)
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{
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closedir (dirp);
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return NULL;
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}
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namep = name_space;
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while ((dp = readdir (dirp)) != NULL)
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{
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/* Skip "." and ".." (some NFS filesystems' directories lack them). */
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if (dp->d_name[0] != '.'
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|| (dp->d_name[1] != '\0'
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&& (dp->d_name[1] != '.' || dp->d_name[2] != '\0')))
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{
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off_t size_needed = (namep - name_space) + NAMLEN (dp) + 2;
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if ((included_patterns || excluded_patterns)
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&& !isdir1 (dir, dp->d_name))
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{
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if (included_patterns
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&& !excluded_filename (included_patterns, path, 0))
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continue;
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if (excluded_patterns
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&& excluded_filename (excluded_patterns, path, 0))
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continue;
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}
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if (size_needed > name_size)
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{
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char *new_name_space;
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while (size_needed > name_size)
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name_size += 1024;
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new_name_space = realloc (name_space, name_size);
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if (new_name_space == NULL)
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{
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closedir (dirp);
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return NULL;
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}
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namep += new_name_space - name_space;
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name_space = new_name_space;
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}
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namep = stpcpy (namep, dp->d_name) + 1;
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}
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}
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*namep = '\0';
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if (CLOSEDIR (dirp))
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{
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free (name_space);
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return NULL;
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}
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if (path)
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{
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free (path);
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path = NULL;
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pathlen = 0;
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}
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return name_space;
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}
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