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touch: Use both atime and mtime of reference file

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This commit is contained in:
Michael Forney 2015-05-16 04:57:27 +00:00 committed by sin
parent 4132561c17
commit b4adb4bb87
1 changed files with 13 additions and 9 deletions
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22
touch.c
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@ -14,14 +14,13 @@
static int aflag;
static int cflag;
static int mflag;
static struct timespec t;
static struct timespec times[2];
static void
touch(const char *file)
{
int fd;
struct stat st;
struct timespec times[2];
int r;
if ((r = stat(file, &st)) < 0) {
@ -30,8 +29,10 @@ touch(const char *file)
if (cflag)
return;
} else if (!r) {
times[0] = aflag ? t : st.st_atim;
times[1] = mflag ? t : st.st_mtim;
if (!aflag)
times[0] = st.st_atim;
if (!mflag)
times[1] = st.st_mtim;
if (utimensat(AT_FDCWD, file, times, 0) < 0)
eprintf("utimensat %s:", file);
return;
@ -117,8 +118,8 @@ int
main(int argc, char *argv[])
{
struct stat st;
char *ref;
clock_gettime(CLOCK_REALTIME, &t);
char *ref = NULL;
clock_gettime(CLOCK_REALTIME, &times[0]);
ARGBEGIN {
case 'a':
@ -129,7 +130,7 @@ main(int argc, char *argv[])
break;
case 'd':
case 't':
t.tv_sec = parsetime(EARGF(usage()), t.tv_sec);
times[0].tv_sec = parsetime(EARGF(usage()), times[0].tv_sec);
break;
case 'm':
mflag = 1;
@ -138,10 +139,11 @@ main(int argc, char *argv[])
ref = EARGF(usage());
if (stat(ref, &st) < 0)
eprintf("stat '%s':", ref);
t = st.st_mtim;
times[0] = st.st_atim;
times[1] = st.st_mtim;
break;
case 'T':
t.tv_sec = estrtonum(EARGF(usage()), 0, LLONG_MAX);
times[0].tv_sec = estrtonum(EARGF(usage()), 0, LLONG_MAX);
break;
default:
usage();
@ -151,6 +153,8 @@ main(int argc, char *argv[])
usage();
if (!aflag && !mflag)
aflag = mflag = 1;
if (!ref)
times[1] = times[0];
for (; *argv; argc--, argv++)
touch(*argv);