1 /* $NetBSD: libdm-file.c,v 1.1.1.1 2008/12/22 00:18:33 haad Exp $ */ 2 3 /* 4 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. 5 * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. 6 * 7 * This file is part of the device-mapper userspace tools. 8 * 9 * This copyrighted material is made available to anyone wishing to use, 10 * modify, copy, or redistribute it subject to the terms and conditions 11 * of the GNU Lesser General Public License v.2.1. 12 * 13 * You should have received a copy of the GNU Lesser General Public License 14 * along with this program; if not, write to the Free Software Foundation, 15 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 16 */ 17 18 #include "dmlib.h" 19 20 #include <fcntl.h> 21 #include <dirent.h> 22 23 static int _create_dir_recursive(const char *dir) 24 { 25 char *orig, *s; 26 int rc, r = 0; 27 28 log_verbose("Creating directory \"%s\"", dir); 29 /* Create parent directories */ 30 orig = s = dm_strdup(dir); 31 while ((s = strchr(s, '/')) != NULL) { 32 *s = '\0'; 33 if (*orig) { 34 rc = mkdir(orig, 0777); 35 if (rc < 0 && errno != EEXIST) { 36 if (errno != EROFS) 37 log_sys_error("mkdir", orig); 38 goto out; 39 } 40 } 41 *s++ = '/'; 42 } 43 44 /* Create final directory */ 45 rc = mkdir(dir, 0777); 46 if (rc < 0 && errno != EEXIST) { 47 if (errno != EROFS) 48 log_sys_error("mkdir", orig); 49 goto out; 50 } 51 52 r = 1; 53 out: 54 dm_free(orig); 55 return r; 56 } 57 58 int dm_create_dir(const char *dir) 59 { 60 struct stat info; 61 62 if (!*dir) 63 return 1; 64 65 if (stat(dir, &info) < 0) 66 return _create_dir_recursive(dir); 67 68 if (S_ISDIR(info.st_mode)) 69 return 1; 70 71 log_error("Directory \"%s\" not found", dir); 72 return 0; 73 } 74 75 int dm_fclose(FILE *stream) 76 { 77 int prev_fail = ferror(stream); 78 int fclose_fail = fclose(stream); 79 80 /* If there was a previous failure, but fclose succeeded, 81 clear errno, since ferror does not set it, and its value 82 may be unrelated to the ferror-reported failure. */ 83 if (prev_fail && !fclose_fail) 84 errno = 0; 85 86 return prev_fail || fclose_fail ? EOF : 0; 87 } 88