xref: /illumos-gate/usr/src/lib/libc/port/sys/utimesys.c (revision b7a77849)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
29  */
30 
31 #include "lint.h"
32 #include <string.h>
33 #include <utime.h>
34 #include <fcntl.h>
35 #include <sys/stat.h>
36 #include <sys/time.h>
37 #include <sys/syscall.h>
38 
39 int
futimens(int fd,const timespec_t times[2])40 futimens(int fd, const timespec_t times[2])
41 {
42 	return (syscall(SYS_utimesys, 0, fd, times));
43 }
44 
45 int
utimensat(int fd,const char * path,const timespec_t times[2],int flag)46 utimensat(int fd, const char *path, const timespec_t times[2], int flag)
47 {
48 	return (syscall(SYS_utimesys, 1, fd, path, times, flag));
49 }
50 
51 #pragma weak _utime = utime
52 int
utime(const char * path,const struct utimbuf * times)53 utime(const char *path, const struct utimbuf *times)
54 {
55 	struct utimbuf ltimes;
56 	timespec_t ts[2];
57 	timespec_t *tsp;
58 
59 	if (times == NULL) {
60 		tsp = NULL;
61 	} else {
62 		/* use uucopy() to behave like a system call */
63 		if (uucopy(times, &ltimes, sizeof (ltimes)) != 0)
64 			return (-1);	/* uucopy() set errno to EFAULT */
65 		ts[0].tv_sec = ltimes.actime;
66 		ts[0].tv_nsec = 0;
67 		ts[1].tv_sec = ltimes.modtime;
68 		ts[1].tv_nsec = 0;
69 		tsp = ts;
70 	}
71 	return (utimensat(AT_FDCWD, path, tsp, 0));
72 }
73 
74 static int
utimes_impl(const char * path,const struct timeval times[2],int flag)75 utimes_impl(const char *path, const struct timeval times[2], int flag)
76 {
77 	struct timeval ltimes[2];
78 	timespec_t ts[2];
79 	timespec_t *tsp;
80 
81 	if (times == NULL) {
82 		tsp = NULL;
83 	} else {
84 		/* use uucopy() to behave like a system call */
85 		if (uucopy(times, ltimes, sizeof (ltimes)) != 0)
86 			return (-1);	/* uucopy() set errno to EFAULT */
87 		ts[0].tv_sec = ltimes[0].tv_sec;
88 		ts[0].tv_nsec = ltimes[0].tv_usec * 1000;
89 		ts[1].tv_sec = ltimes[1].tv_sec;
90 		ts[1].tv_nsec = ltimes[1].tv_usec * 1000;
91 		tsp = ts;
92 	}
93 	return (utimensat(AT_FDCWD, path, tsp, flag));
94 }
95 
96 int
utimes(const char * path,const struct timeval times[2])97 utimes(const char *path, const struct timeval times[2])
98 {
99 	return (utimes_impl(path, times, 0));
100 }
101 
102 int
lutimes(const char * path,const struct timeval times[2])103 lutimes(const char *path, const struct timeval times[2])
104 {
105 	return (utimes_impl(path, times, AT_SYMLINK_NOFOLLOW));
106 }
107 
108 #pragma weak _futimesat = futimesat
109 int
futimesat(int fd,const char * path,const struct timeval times[2])110 futimesat(int fd, const char *path, const struct timeval times[2])
111 {
112 	struct timeval ltimes[2];
113 	timespec_t ts[2];
114 	timespec_t *tsp;
115 
116 	if (times == NULL) {
117 		tsp = NULL;
118 	} else {
119 		/* use uucopy() to behave like a system call */
120 		if (uucopy(times, ltimes, sizeof (ltimes)) != 0)
121 			return (-1);	/* uucopy() set errno to EFAULT */
122 		ts[0].tv_sec = ltimes[0].tv_sec;
123 		ts[0].tv_nsec = ltimes[0].tv_usec * 1000;
124 		ts[1].tv_sec = ltimes[1].tv_sec;
125 		ts[1].tv_nsec = ltimes[1].tv_usec * 1000;
126 		tsp = ts;
127 	}
128 
129 	if (path == NULL)
130 		return (futimens(fd, tsp));
131 
132 	return (utimensat(fd, path, tsp, 0));
133 }
134 
135 int
futimes(int fd,const struct timeval times[2])136 futimes(int fd, const struct timeval times[2])
137 {
138 	return (futimesat(fd, NULL, times));
139 }
140