OpenSolaris Launch

1 files changed, 410 insertions, 0 deletions

diff --git a/usr/src/cmd/touch/touch.c b/usr/src/cmd/touch/touch.c
new file mode 100644
index 0000000000..1263cfe4b5
--- /dev/null
+++ b/usr/src/cmd/touch/touch.c
@@ -0,0 +1,410 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+/*	Copyright (c) 1987, 1988 Microsoft Corporation	*/
+/*	  All Rights Reserved	*/
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <libgen.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <time.h>
+#include <unistd.h>
+#include <locale.h>
+#include <sys/time.h>
+#include <errno.h>
+
+#define	BADTIME	"bad time specification"
+
+static char	*myname;
+
+static int isnumber(char *);
+static int atoi_for2(char *);
+static void usage(const int);
+static void touchabort(const char *);
+static void parse_time(char *, timestruc_t *);
+static void parse_datetime(char *, timestruc_t *);
+static void timestruc_to_timeval(timestruc_t *, struct timeval *);
+
+int
+main(int argc, char *argv[])
+{
+	int c;
+
+	int		aflag	= 0;
+	int		cflag	= 0;
+	int		rflag	= 0;
+	int		mflag	= 0;
+	int		tflag	= 0;
+	int		stflag	= 0;
+	int		status	= 0;
+	int		usecurrenttime = 1;
+	int		timespecified;
+	int		optc;
+	int		fd;
+	struct stat	stbuf;
+	struct stat	prstbuf;
+	struct timeval	times[2];
+
+	(void) setlocale(LC_ALL, "");
+#if !defined(TEXT_DOMAIN)
+#define	TEXT_DOMAIN "SYS_TEST"
+#endif
+	(void) textdomain(TEXT_DOMAIN);
+
+	myname = basename(argv[0]);
+	if (strcmp(myname, "settime") == NULL) {
+		cflag++;
+		stflag++;
+		while ((optc = getopt(argc, argv, "f:")) != EOF)
+			switch (optc) {
+			case 'f':
+				rflag++;
+				usecurrenttime = 0;
+				if (stat(optarg, &prstbuf) == -1) {
+					(void) fprintf(stderr, "%s: ", myname);
+					perror(optarg);
+					return (2);
+				}
+				break;
+			case '?':
+				usage(stflag);
+				break;
+			};
+	} else
+		while ((optc = getopt(argc, argv, "acfmr:t:")) != EOF)
+			switch (optc) {
+			case 'a':
+				aflag++;
+				usecurrenttime = 0;
+				break;
+			case 'c':
+				cflag++;
+				break;
+			case 'f':	/* silently ignore for UCB compat */
+				break;
+			case 'm':
+				mflag++;
+				usecurrenttime = 0;
+				break;
+			case 'r':	/* same as settime's -f option */
+				rflag++;
+				usecurrenttime = 0;
+				if (stat(optarg, &prstbuf) == -1) {
+					(void) fprintf(stderr, "%s: ", myname);
+					perror(optarg);
+					return (2);
+				}
+				break;
+			case 't':
+				tflag++;
+				usecurrenttime = 0;
+				parse_time(optarg, &prstbuf.st_mtim);
+				prstbuf.st_atim = prstbuf.st_mtim;
+				break;
+			case '?':
+				usage(stflag);
+				break;
+			}
+
+	argc -= optind;
+	argv += optind;
+
+	if ((argc < 1) || (rflag + tflag > 1))
+		usage(stflag);
+
+	if ((aflag == 0) && (mflag == 0)) {
+		aflag = 1;
+		mflag = 1;
+	}
+
+	/*
+	 * If either -r or -t has been specified,
+	 * use the specified time.
+	 */
+	timespecified = rflag || tflag;
+
+	if (timespecified == 0) {
+		if (argc >= 2 && isnumber(*argv) && (strlen(*argv) == 8 ||
+			strlen(*argv) == 10)) {
+			/*
+			 * time is specified as an operand.
+			 * use it.
+			 */
+			parse_datetime(*argv++, &prstbuf.st_mtim);
+			prstbuf.st_atim = prstbuf.st_mtim;
+			usecurrenttime = 0;
+			timespecified = 1;
+			argc--;
+		} else {
+			/*
+			 * no time information is specified.
+			 * use the current time.
+			 */
+			(void) gettimeofday(times, NULL);
+			times[1] = times[0];
+		}
+	}
+	for (c = 0; c < argc; c++) {
+		if (stat(argv[c], &stbuf)) {
+			/*
+			 * if stat failed for reasons other than ENOENT,
+			 * the file should not be created, since this
+			 * can clobber the contents of an existing file
+			 * (for example, a large file that results in overflow).
+			 */
+			if (errno != ENOENT) {
+				(void) fprintf(stderr,
+				    gettext("%s: %s cannot stat\n"),
+				    myname, argv[c]);
+				status++;
+				continue;
+			} else if (cflag) {
+				continue;
+			} else if ((fd = creat(argv[c],
+			    (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)))
+			    < 0) {
+				(void) fprintf(stderr,
+				    gettext("%s: %s cannot create\n"),
+				    myname, argv[c]);
+				status++;
+				continue;
+			} else {
+				(void) close(fd);
+				if (stat(argv[c], &stbuf)) {
+					(void) fprintf(stderr,
+					    gettext("%s: %s cannot stat\n"),
+					    myname, argv[c]);
+					status++;
+					continue;
+				}
+			}
+		}
+
+		if (mflag == 0) {
+			/* Keep the mtime of the file */
+			timestruc_to_timeval(&stbuf.st_mtim, times + 1);
+		} else {
+			if (timespecified) {
+				/* Set the specified time */
+				timestruc_to_timeval(&prstbuf.st_mtim,
+				    times + 1);
+			}
+			/* Otherwise, use the current time by gettimeofday */
+		}
+
+		if (aflag == 0) {
+			/* Keep the atime of the file */
+			timestruc_to_timeval(&stbuf.st_atim, times);
+		} else {
+			if (timespecified) {
+				/* Set the specified time */
+				timestruc_to_timeval(&prstbuf.st_atim, times);
+			}
+			/* Otherwise, use the current time by gettimeofday */
+		}
+
+		if (utimes(argv[c], (usecurrenttime) ? NULL : times)) {
+			(void) fprintf(stderr,
+			    gettext("%s: cannot change times on %s\n"),
+			    myname, argv[c]);
+			status++;
+			continue;
+		}
+	}
+	return (status);
+}
+
+static int
+isnumber(char *s)
+{
+	int c;
+
+	while ((c = *s++) != '\0')
+		if (!isdigit(c))
+			return (0);
+	return (1);
+}
+
+
+static void
+parse_time(char *t, timestruc_t *ts)
+{
+	int		century = 0;
+	int		seconds = 0;
+	char		*p;
+	time_t		when;
+	struct tm	tm;
+
+	/*
+	 * time in the following format (defined by the touch(1) spec):
+	 *	[[CC]YY]MMDDhhmm[.SS]
+	 */
+	if ((p = strchr(t, '.')) != NULL) {
+		if (strchr(p+1, '.') != NULL)
+			touchabort(BADTIME);
+		seconds = atoi_for2(p+1);
+		*p = '\0';
+	}
+
+	(void) memset(&tm, 0, sizeof (struct tm));
+	when = time(0);
+	tm.tm_year = localtime(&when)->tm_year;
+
+	switch (strlen(t)) {
+		case 12:	/* CCYYMMDDhhmm */
+			century = atoi_for2(t);
+			t += 2;
+			/* FALLTHROUGH */
+		case 10:	/* YYMMDDhhmm */
+			tm.tm_year = atoi_for2(t);
+			t += 2;
+			if (century == 0) {
+				if (tm.tm_year < 69)
+					tm.tm_year += 100;
+			} else
+				tm.tm_year += (century - 19) * 100;
+			/* FALLTHROUGH */
+		case 8:		/* MMDDhhmm */
+			tm.tm_mon = atoi_for2(t) - 1;
+			t += 2;
+			tm.tm_mday = atoi_for2(t);
+			t += 2;
+			tm.tm_hour = atoi_for2(t);
+			t += 2;
+			tm.tm_min = atoi_for2(t);
+			tm.tm_sec = seconds;
+			break;
+		default:
+			touchabort(BADTIME);
+	}
+
+	if ((when = mktime(&tm)) == -1)
+		touchabort(BADTIME);
+	if (tm.tm_isdst)
+		when -= (timezone-altzone);
+
+	ts->tv_sec = when;
+	ts->tv_nsec = 0;
+}
+
+static void
+parse_datetime(char *t, timestruc_t *ts)
+{
+	time_t		when;
+	struct tm	tm;
+
+	/*
+	 * time in the following format (defined by the touch(1) spec):
+	 *	MMDDhhmm[yy]
+	 */
+
+	(void) memset(&tm, 0, sizeof (struct tm));
+	when = time(0);
+	tm.tm_year = localtime(&when)->tm_year;
+
+	switch (strlen(t)) {
+		case 10:	/* MMDDhhmmyy */
+			tm.tm_year = atoi_for2(t+8);
+			if (tm.tm_year < 69)
+				tm.tm_year += 100;
+			/* FALLTHROUGH */
+		case 8:		/* MMDDhhmm */
+			tm.tm_mon = atoi_for2(t) - 1;
+			t += 2;
+			tm.tm_mday = atoi_for2(t);
+			t += 2;
+			tm.tm_hour = atoi_for2(t);
+			t += 2;
+			tm.tm_min = atoi_for2(t);
+			break;
+		default:
+			touchabort(BADTIME);
+	}
+
+	if ((when = mktime(&tm)) == -1)
+		touchabort(BADTIME);
+	if (tm.tm_isdst)
+		when -= (timezone - altzone);
+
+	ts->tv_sec = when;
+	ts->tv_nsec = 0;
+}
+
+static int
+atoi_for2(char *p)
+{
+	int value;
+
+	value = (*p - '0') * 10 + *(p+1) - '0';
+	if ((value < 0) || (value > 99))
+		touchabort(BADTIME);
+	return (value);
+}
+
+static void
+touchabort(const char *message)
+{
+	(void) fprintf(stderr, "%s: %s\n", myname, gettext(message));
+	exit(1);
+}
+
+static void
+usage(const int settime)
+{
+	if (settime)
+		(void) fprintf(stderr, gettext(
+		    "usage: %s [-f file] [mmddhhmm[yy]] file...\n"),
+		    myname);
+	else
+		(void) fprintf(stderr, gettext(
+		    "usage: %s [-acm] [-r ref_file] file...\n"
+		    "       %s [-acm] [MMDDhhmm[yy]] file...\n"
+		    "       %s [-acm] [-t [[CC]YY]MMDDhhmm[.SS]] file...\n"),
+		    myname, myname, myname);
+	exit(2);
+}
+
+/*
+ * nanoseconds are rounded off to microseconds by flooring.
+ */
+static void
+timestruc_to_timeval(timestruc_t *ts, struct timeval *tv)
+{
+	tv->tv_sec = ts->tv_sec;
+	tv->tv_usec = ts->tv_nsec / 1000;
+}