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A little bit of anti-foot-shooting. Use utimes(2) rather than

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the deprecated utime(3).  utimes(2) uses timeval, but utime(3) uses
time_t's.  If you do bad things (like I did) by mixing up include files
with libc, then install can do strange things if you mismatch the time_t
stuff.  utime() is emulated entirely within libc.

Approved by:  re (jhb)
This commit is contained in:
Peter Wemm 2002-11-15 22:43:56 +00:00
parent 6ceeb6902a
commit 4001ea8d00
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=106967
1 changed files with 11 additions and 8 deletions
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19
usr.bin/xinstall/xinstall.c
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@ -64,7 +64,6 @@ __FBSDID("$FreeBSD$");
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <utime.h>
#include "pathnames.h"
@ -262,7 +261,7 @@ void
install(const char *from_name, const char *to_name, u_long fset, u_int flags)
{
struct stat from_sb, temp_sb, to_sb;
struct utimbuf utb;
struct timeval tvb[2];
int devnull, files_match, from_fd, serrno, target;
int tempcopy, temp_fd, to_fd;
char backup[MAXPATHLEN], *p, pathbuf[MAXPATHLEN], tempfile[MAXPATHLEN];
@ -377,9 +376,11 @@ install(const char *from_name, const char *to_name, u_long fset, u_int flags)
* Need to preserve target file times, though.
*/
if (to_sb.st_nlink != 1) {
utb.actime = to_sb.st_atime;
utb.modtime = to_sb.st_mtime;
(void)utime(tempfile, &utb);
tvb[0].tv_sec = to_sb.st_atime;
tvb[0].tv_usec = 0;
tvb[1].tv_sec = to_sb.st_mtime;
tvb[1].tv_usec = 0;
(void)utimes(tempfile, tvb);
} else {
files_match = 1;
(void)unlink(tempfile);
@ -433,9 +434,11 @@ install(const char *from_name, const char *to_name, u_long fset, u_int flags)
* Preserve the timestamp of the source file if necessary.
*/
if (dopreserve && !files_match && !devnull) {
utb.actime = from_sb.st_atime;
utb.modtime = from_sb.st_mtime;
(void)utime(to_name, &utb);
tvb[0].tv_sec = from_sb.st_atime;
tvb[0].tv_usec = 0;
tvb[1].tv_sec = from_sb.st_mtime;
tvb[1].tv_usec = 0;
(void)utimes(to_name, tvb);
}
if (fstat(to_fd, &to_sb) == -1) {