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authorRob Landley <rob@landley.net>2007-11-30 04:37:24 -0600
committerRob Landley <rob@landley.net>2007-11-30 04:37:24 -0600
commit7abb976bac52e95820a629b2569e2c30aa8dd8d4 (patch)
tree8b738d58335788a6483359cf0b552c4529079d2d /toys/touch.c
parentce6750ac69a7a80a18db7f0d7a217cbf37c7a04c (diff)
downloadtoybox-7abb976bac52e95820a629b2569e2c30aa8dd8d4.tar.gz
Minor cleanups/tweaks to touch.
Diffstat (limited to 'toys/touch.c')
-rw-r--r--toys/touch.c64
1 files changed, 31 insertions, 33 deletions
diff --git a/toys/touch.c b/toys/touch.c
index 61eb18b9..013a388e 100644
--- a/toys/touch.c
+++ b/toys/touch.c
@@ -13,48 +13,48 @@
#include <time.h>
#include "toys.h"
-#define MTIME 0x01
-#define NO_CREATE 0x02
-#define ATIME 0x04
-#define REFERENCE 0x08
-#define TIME 0x10
-#define LENGTH 0x20
+#define OPT_MTIME 0x01
+#define OPT_NOCREATE 0x02
+#define OPT_ATIME 0x04
+#define OPT_REFERENCE 0x08
+#define OPT_TIME 0x10
+#define OPT_LENGTH 0x20
void touch_main(void)
{
char *arg;
- int i, set_a, set_m, create;
+ int i, set_a, set_m;
time_t curr_a, curr_m;
- set_a = !!(toys.optflags & ATIME);
- set_m = !!(toys.optflags & MTIME);
- create = !(toys.optflags & NO_CREATE);
+ set_a = !!(toys.optflags & OPT_ATIME);
+ set_m = !!(toys.optflags & OPT_MTIME);
- if (toys.optflags & REFERENCE) {
+ // Use timestamp on a file
+ if (toys.optflags & OPT_REFERENCE) {
struct stat sb;
- if (toys.optflags & TIME)
- error_exit("Cannot specify times from more than one source");
+
+ if (toys.optflags & OPT_TIME)
+ error_exit("Redundant time source");
xstat(toy.touch.ref_file, &sb);
curr_m = sb.st_mtime;
curr_a = sb.st_atime;
- } else if (toys.optflags & TIME) {
+
+ // Use time specified on command line.
+ } else if (toys.optflags & OPT_TIME) {
struct tm t;
time_t curr;
char *c;
+
curr = time(NULL);
- if (!localtime_r(&curr, &t))
- goto time_error;
- c = strptime(toy.touch.time, "%m%d%H%M", &t);
- if (!c || *c)
- goto time_error;
- curr_a = curr_m = mktime(&t);
- if (curr_a == -1)
-time_error:
- error_exit("Error converting time %s to internal format",
- toy.touch.time);
- } else {
- curr_m = curr_a = time(NULL);
- }
+ if (localtime_r(&curr, &t)
+ || !(c = strptime(toy.touch.time, "%m%d%H%M", &t))
+ || *c || -1==(curr_a = curr_m = mktime(&t)))
+ {
+ error_exit("Unknown time %s", toy.touch.time);
+ }
+
+ // use current time
+ } else curr_m = curr_a = time(NULL);
for (i = 0; (arg = toys.optargs[i]); i++) {
struct utimbuf buf;
@@ -64,7 +64,7 @@ time_error:
buf.actime = curr_a;
if (stat(arg, &sb) == -1) {
- if (create && errno == ENOENT) {
+ if (!(toys.optflags & OPT_NOCREATE) && errno == ENOENT) {
if (creat(arg, 0644))
goto error;
if (stat(arg, &sb))
@@ -74,13 +74,11 @@ time_error:
if ((set_a+set_m) == 1) {
/* We've been asked to only change one */
- if (set_a)
- buf.modtime = sb.st_mtime;
- else if (set_m)
- buf.actime = sb.st_atime;
+ if (set_a) buf.modtime = sb.st_mtime;
+ else if (set_m) buf.actime = sb.st_atime;
}
- if (toys.optflags & LENGTH)
+ if (toys.optflags & OPT_LENGTH)
if (truncate(arg, toy.touch.length))
goto error;
if (utime(arg, &buf))