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0b8224d1cc
We've ifdef'd out the copyright strings for some time now. Go ahead and remove the ifdefs. Plus whatever other detritis was left over from other recent removals. These copyright strings are present in the comments and are largely from CSRG's attempt at adding their copyright to every binary file (which modern interpretations of the license doesn't require). Sponsored by: Netflix
401 lines
9.0 KiB
C
401 lines
9.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <libgen.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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static void stime_arg1(const char *, struct timespec *);
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static void stime_arg2(const char *, int, struct timespec *);
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static void stime_darg(const char *, struct timespec *);
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static void stime_file(const char *, struct timespec *);
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static int timeoffset(const char *);
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static void usage(const char *);
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int
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main(int argc, char *argv[])
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{
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struct stat sb;
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struct timespec ts[2];
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int atflag;
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int Aflag, aflag, cflag, mflag, ch, fd, len, rval, timeset;
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char *p;
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char *myname;
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myname = basename(argv[0]);
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Aflag = aflag = cflag = mflag = timeset = 0;
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atflag = 0;
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ts[0].tv_sec = ts[1].tv_sec = 0;
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ts[0].tv_nsec = ts[1].tv_nsec = UTIME_NOW;
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while ((ch = getopt(argc, argv, "A:acd:fhmr:t:")) != -1)
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switch(ch) {
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case 'A':
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Aflag = timeoffset(optarg);
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break;
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case 'a':
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aflag = 1;
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break;
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case 'c':
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cflag = 1;
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break;
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case 'd':
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timeset = 1;
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stime_darg(optarg, ts);
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break;
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case 'f':
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/* No-op for compatibility. */
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break;
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case 'h':
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cflag = 1;
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atflag = AT_SYMLINK_NOFOLLOW;
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break;
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case 'm':
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mflag = 1;
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break;
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case 'r':
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timeset = 1;
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stime_file(optarg, ts);
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break;
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case 't':
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timeset = 1;
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stime_arg1(optarg, ts);
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break;
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default:
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usage(myname);
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}
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argc -= optind;
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argv += optind;
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if (aflag == 0 && mflag == 0)
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aflag = mflag = 1;
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if (timeset) {
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if (Aflag) {
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/*
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* We're setting the time to an offset from a specified
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* time. God knows why, but it means that we can set
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* that time once and for all here.
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*/
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if (aflag)
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ts[0].tv_sec += Aflag;
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if (mflag)
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ts[1].tv_sec += Aflag;
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Aflag = 0; /* done our job */
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}
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} else {
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/*
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* If no -r or -t flag, at least two operands, the first of
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* which is an 8 or 10 digit number, use the obsolete time
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* specification, otherwise use the current time.
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*/
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if (argc > 1) {
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strtol(argv[0], &p, 10);
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len = p - argv[0];
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if (*p == '\0' && (len == 8 || len == 10)) {
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timeset = 1;
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stime_arg2(*argv++, len == 10, ts);
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}
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}
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/* Both times default to the same. */
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ts[1] = ts[0];
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}
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if (!aflag)
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ts[0].tv_nsec = UTIME_OMIT;
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if (!mflag)
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ts[1].tv_nsec = UTIME_OMIT;
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if (*argv == NULL)
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usage(myname);
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if (Aflag)
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cflag = 1;
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for (rval = 0; *argv; ++argv) {
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/* See if the file exists. */
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if (fstatat(AT_FDCWD, *argv, &sb, atflag) != 0) {
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if (errno != ENOENT) {
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rval = 1;
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warn("%s", *argv);
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continue;
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}
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if (!cflag) {
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/* Create the file. */
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fd = open(*argv,
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O_WRONLY | O_CREAT, DEFFILEMODE);
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if (fd == -1) {
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rval = 1;
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warn("%s", *argv);
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continue;
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}
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if (fstat(fd, &sb) < 0) {
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warn("%s", *argv);
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rval = 1;
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}
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if (close(fd) < 0) {
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warn("%s", *argv);
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rval = 1;
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}
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/* If using the current time, we're done. */
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if (!timeset)
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continue;
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} else
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continue;
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}
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/*
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* We're adjusting the times based on the file times, not a
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* specified time (that gets handled above).
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*/
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if (Aflag) {
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if (aflag) {
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ts[0] = sb.st_atim;
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ts[0].tv_sec += Aflag;
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}
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if (mflag) {
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ts[1] = sb.st_mtim;
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ts[1].tv_sec += Aflag;
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}
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}
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if (!utimensat(AT_FDCWD, *argv, ts, atflag))
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continue;
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rval = 1;
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warn("%s", *argv);
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}
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exit(rval);
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}
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#define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2;
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static void
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stime_arg1(const char *arg, struct timespec *tvp)
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{
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time_t now;
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struct tm *t;
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int yearset;
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char *p;
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now = time(NULL);
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if ((t = localtime(&now)) == NULL)
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err(1, "localtime");
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/* [[CC]YY]MMDDhhmm[.SS] */
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if ((p = strchr(arg, '.')) == NULL)
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t->tm_sec = 0; /* Seconds defaults to 0. */
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else {
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if (strlen(p + 1) != 2)
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goto terr;
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*p++ = '\0';
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t->tm_sec = ATOI2(p);
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}
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yearset = 0;
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switch(strlen(arg)) {
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case 12: /* CCYYMMDDhhmm */
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t->tm_year = ATOI2(arg);
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t->tm_year *= 100;
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yearset = 1;
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/* FALLTHROUGH */
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case 10: /* YYMMDDhhmm */
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if (yearset) {
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yearset = ATOI2(arg);
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t->tm_year += yearset;
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} else {
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yearset = ATOI2(arg);
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if (yearset < 69)
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t->tm_year = yearset + 2000;
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else
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t->tm_year = yearset + 1900;
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}
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t->tm_year -= 1900; /* Convert to UNIX time. */
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/* FALLTHROUGH */
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case 8: /* MMDDhhmm */
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t->tm_mon = ATOI2(arg);
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--t->tm_mon; /* Convert from 01-12 to 00-11 */
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t->tm_mday = ATOI2(arg);
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t->tm_hour = ATOI2(arg);
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t->tm_min = ATOI2(arg);
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break;
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default:
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goto terr;
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}
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t->tm_isdst = -1; /* Figure out DST. */
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tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
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if (tvp[0].tv_sec == -1)
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goto terr;
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tvp[0].tv_nsec = tvp[1].tv_nsec = 0;
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return;
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terr:
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errx(1, "out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
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}
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static void
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stime_arg2(const char *arg, int year, struct timespec *tvp)
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{
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time_t now;
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struct tm *t;
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now = time(NULL);
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if ((t = localtime(&now)) == NULL)
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err(1, "localtime");
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t->tm_mon = ATOI2(arg); /* MMDDhhmm[yy] */
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--t->tm_mon; /* Convert from 01-12 to 00-11 */
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t->tm_mday = ATOI2(arg);
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t->tm_hour = ATOI2(arg);
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t->tm_min = ATOI2(arg);
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if (year) {
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t->tm_year = ATOI2(arg);
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if (t->tm_year < 39) /* support 2000-2038 not 1902-1969 */
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t->tm_year += 100;
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}
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t->tm_isdst = -1; /* Figure out DST. */
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tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
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if (tvp[0].tv_sec == -1)
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errx(1,
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"out of range or illegal time specification: MMDDhhmm[yy]");
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tvp[0].tv_nsec = tvp[1].tv_nsec = 0;
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}
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static void
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stime_darg(const char *arg, struct timespec *tvp)
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{
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struct tm t = { .tm_sec = 0 };
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const char *fmt, *colon;
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char *p;
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int val, isutc = 0;
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tvp[0].tv_nsec = 0;
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t.tm_isdst = -1;
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colon = strchr(arg, ':');
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if (colon == NULL || strchr(colon + 1, ':') == NULL)
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goto bad;
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fmt = strchr(arg, 'T') != NULL ? "%Y-%m-%dT%H:%M:%S" :
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"%Y-%m-%d %H:%M:%S";
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p = strptime(arg, fmt, &t);
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if (p == NULL)
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goto bad;
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/* POSIX: must have at least one digit after dot */
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if ((*p == '.' || *p == ',') && isdigit((unsigned char)p[1])) {
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p++;
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val = 100000000;
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while (isdigit((unsigned char)*p)) {
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tvp[0].tv_nsec += val * (*p - '0');
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p++;
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val /= 10;
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}
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}
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if (*p == 'Z') {
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isutc = 1;
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p++;
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}
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if (*p != '\0')
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goto bad;
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tvp[0].tv_sec = isutc ? timegm(&t) : mktime(&t);
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tvp[1] = tvp[0];
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return;
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bad:
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errx(1, "out of range or illegal time specification: YYYY-MM-DDThh:mm:SS[.frac][tz]");
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}
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/* Calculate a time offset in seconds, given an arg of the format [-]HHMMSS. */
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int
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timeoffset(const char *arg)
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{
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int offset;
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int isneg;
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offset = 0;
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isneg = *arg == '-';
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if (isneg)
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arg++;
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switch (strlen(arg)) {
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default: /* invalid */
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errx(1, "Invalid offset spec, must be [-][[HH]MM]SS");
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case 6: /* HHMMSS */
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offset = ATOI2(arg);
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/* FALLTHROUGH */
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case 4: /* MMSS */
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offset = offset * 60 + ATOI2(arg);
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/* FALLTHROUGH */
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case 2: /* SS */
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offset = offset * 60 + ATOI2(arg);
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}
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if (isneg)
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return (-offset);
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else
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return (offset);
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}
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static void
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stime_file(const char *fname, struct timespec *tsp)
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{
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struct stat sb;
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if (stat(fname, &sb))
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err(1, "%s", fname);
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tsp[0] = sb.st_atim;
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tsp[1] = sb.st_mtim;
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}
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static void
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usage(const char *myname)
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{
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fprintf(stderr, "usage: %s [-A [-][[hh]mm]SS] [-achm] [-r file] "
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"[-t [[CC]YY]MMDDhhmm[.SS]]\n"
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" [-d YYYY-MM-DDThh:mm:SS[.frac][tz]] "
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"file ...\n", myname);
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exit(1);
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}
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