1 /* savedir.c -- save the list of files in a directory in a string
2 Copyright (C) 1990, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program 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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
20 #include <sys/cdefs.h>
21 __FBSDID("$FreeBSD$");
27 #include <sys/types.h>
35 # define NAMLEN(dirent) strlen((dirent)->d_name)
37 # define dirent direct
38 # define NAMLEN(dirent) (dirent)->d_namlen
40 # include <sys/ndir.h>
51 /* Fake a return value. */
52 # define CLOSEDIR(d) (closedir (d), 0)
54 # define CLOSEDIR(d) closedir (d)
80 isdir1 (const char *dir, const char *file)
84 size_t dirlen = strlen (dir);
85 size_t filelen = strlen (file);
86 if ((dirlen + filelen + 2) > pathlen)
88 path = calloc (dirlen + 1 + filelen + 1, sizeof (*path));
89 pathlen = dirlen + filelen + 2;
92 slash = (path[dirlen] != '/');
94 strcpy (path + dirlen + slash , file);
95 status = isdir (path);
99 /* Return a freshly allocated string containing the filenames
100 in directory DIR, separated by '\0' characters;
101 the end is marked by two '\0' characters in a row.
102 NAME_SIZE is the number of bytes to initially allocate
103 for the string; it will be enlarged as needed.
104 Return NULL if DIR cannot be opened or if out of memory. */
106 savedir (const char *dir, off_t name_size, struct exclude *included_patterns,
107 struct exclude *excluded_patterns)
114 dirp = opendir (dir);
118 /* Be sure name_size is at least `1' so there's room for
119 the final NUL byte. */
123 name_space = (char *) malloc (name_size);
124 if (name_space == NULL)
131 while ((dp = readdir (dirp)) != NULL)
133 /* Skip "." and ".." (some NFS filesystems' directories lack them). */
134 if (dp->d_name[0] != '.'
135 || (dp->d_name[1] != '\0'
136 && (dp->d_name[1] != '.' || dp->d_name[2] != '\0')))
138 off_t size_needed = (namep - name_space) + NAMLEN (dp) + 2;
140 if ((included_patterns || excluded_patterns)
141 && !isdir1 (dir, dp->d_name))
143 if (included_patterns
144 && !excluded_filename (included_patterns, path, 0))
146 if (excluded_patterns
147 && excluded_filename (excluded_patterns, path, 0))
151 if (size_needed > name_size)
153 char *new_name_space;
155 while (size_needed > name_size)
158 new_name_space = realloc (name_space, name_size);
159 if (new_name_space == NULL)
164 namep += new_name_space - name_space;
165 name_space = new_name_space;
167 namep = stpcpy (namep, dp->d_name) + 1;