commit 84e7fbda246fba5754edd10b12b98e1bb4993785
parent 5c8d5c1dca2b973827cca99136a1f867971cc7f4
Author: sin <sin@2f30.org>
Date: Fri, 27 Feb 2015 21:43:11 +0000
time(1) cleanup
Diffstat:
| M | time.c | | | 20 | ++++++++------------ |
1 file changed, 8 insertions(+), 12 deletions(-)
diff --git a/time.c b/time.c
@@ -1,11 +1,14 @@
-#include <stdio.h>
-#include <unistd.h>
+/* See LICENSE file for copyright and license details. */
#include <sys/times.h>
#include <sys/wait.h>
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
#include "util.h"
-void
+static void
usage(void)
{
eprintf("usage: %s [-p] utility [argument ...]\n", argv0);
@@ -35,19 +38,12 @@ main(int argc, char *argv[])
if ((ticks = sysconf(_SC_CLK_TCK)) < 0)
eprintf("sysconf() failed to retrieve clock ticks per second:");
- if ((rbeg = times(&tms)) < 0) /* POSIX doesn't say NULL is ok... */
+ if ((rbeg = times(&tms)) < 0)
eprintf("times() failed to retrieve start times:");
if (!(pid = fork())) { /* child */
execvp(*argv, argv);
- /* FIXME: check errno for POSIX exit status
- * 126: found could not be invoked
- * 127: could not be found
- * problem is some like EACCESS can mean either...
- * worth doing manual path search for correct value? also gives more
- * accurate time as the patch search wouldn't be included in child's
- * user/sys times... */
- enprintf(127, "failed to exec %s:", *argv);
+ enprintf(errno == ENOENT ? 127 : 126, "failed to exec %s:", *argv);
}
waitpid(pid, &status, 0);
