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-rw-r--r--sleep.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/sleep.c b/sleep.c
index e48e14b..53fe5a0 100644
--- a/sleep.c
+++ b/sleep.c
@@ -1,15 +1,20 @@
#include "internal.h"
#include <stdio.h>
-const char sleep_usage[] = "sleep seconds\n"
-"\n"
-"\tPause program execution for the given number of seconds.\n";
+const char sleep_usage[] = " NUMBER\n"
+"Pause for NUMBER seconds.\n";
extern int
-sleep_main(struct FileInfo * i, int argc, char * * argv)
+sleep_main(int argc, char * * argv)
{
- if ( sleep(atoi(argv[1])) != 0 )
- return -1;
- else
- return 0;
+ if ( (argc < 2) || (**(argv+1) == '-') ) {
+ fprintf(stderr, "Usage: %s %s", *argv, sleep_usage);
+ exit(FALSE);
+ }
+
+ if ( sleep(atoi(*(++argv))) != 0 ) {
+ perror( "sleep");
+ exit (FALSE);
+ } else
+ exit (TRUE);
}