2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these librararies and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: touch.c /main/3 1995/11/01 18:20:46 rswiston $ */
24 /***************************************************************
26 * AT&T - PROPRIETARY *
28 * THIS IS PROPRIETARY SOURCE CODE LICENSED BY *
31 * Copyright (c) 1995 AT&T Corp. *
32 * All Rights Reserved *
34 * This software is licensed by AT&T Corp. *
35 * under the terms and conditions of the license in *
36 * http://www.research.att.com/orgs/ssr/book/reuse *
38 * This software was created by the *
39 * Software Engineering Research Department *
40 * AT&T Bell Laboratories *
42 * For further information contact *
43 * gsf@research.att.com *
45 ***************************************************************/
47 /* : : generated by proto : : */
49 #if !defined(__PROTO__)
50 #if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
51 #if defined(__cplusplus)
52 #define __MANGLE__ "C"
57 #define __PROTO__(x) x
59 #define __PARAM__(n,o) n
60 #if !defined(__STDC__) && !defined(__cplusplus)
61 #if !defined(c_plusplus)
72 #define __PROTO__(x) ()
73 #define __OTORP__(x) x
74 #define __PARAM__(n,o) o
82 #if defined(__cplusplus) || defined(c_plusplus)
83 #define __VARARG__ ...
87 #if defined(__STDARG__)
88 #define __VA_START__(p,a) va_start(p,a)
90 #define __VA_START__(p,a) va_start(p)
93 #if defined(__STDPP__directive) && defined(__STDPP__hide)
94 __STDPP__directive pragma pp:hide utime
96 #define utime ______utime
104 #if _hdr_utime && _lib_utime
108 #if defined(__STDPP__directive) && defined(__STDPP__hide)
109 __STDPP__directive pragma pp:nohide utime
116 extern __MANGLE__ int utime __PROTO__((const char*, const struct utimbuf*));
118 extern __MANGLE__ int utime __PROTO__((const char*, const time_t*));
123 touch __PARAM__((const char* file, time_t atime, time_t mtime, int force), (file, atime, mtime, force)) __OTORP__(const char* file; time_t atime; time_t mtime; int force;){
139 if (atime == (time_t)(-1) || mtime == (time_t)(-1))
141 if (stat(file, &st)) st.st_atime = st.st_mtime = 0;
142 if (atime == (time_t)(-1)) atime = st.st_atime;
143 if (mtime == (time_t)(-1)) mtime = st.st_mtime;
145 if (!atime || !mtime)
146 #if _hdr_utime && _lib_utime_now
151 if (!atime) atime = now;
152 if (!mtime) mtime = now;
159 n = utime(file, (force < 0 || atime || mtime) ? &ut : (struct utimbuf*)0);
161 n = utime(file, &ut);
173 * NOTE: the emulation allows atime to change
174 * for mtime only requests
183 if (errno == ENOENT || errno == EPERM)
186 if (access(file, F_OK))
189 if (!force) return(-1);
190 umask(mode = umask(0));
191 mode = (~mode) & (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
192 if ((fd = creat(file, mode)) < 0) return(-1);
198 return((force < 0 || atime || mtime) ? utime(file, &ut) : 0);
203 return((atime != now || mtime != now) ? utime(file, ut) : 0);
209 #if !_hdr_utime || !_lib_utime
211 if (atime == now && mtime == now && (fd = open(file, 2)) >= 0)
213 if ((fd = open(file, 2)) >= 0)
218 if (read(fd, &c, 1) == 1)
220 if (lseek(fd, 0L, 0) == 0L && write(fd, &c, 1) == 1)
230 umask(mode = umask(0));
231 mode = (~mode) & (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
232 if ((fd = creat(file, mode)) >= 0)