diff options
Diffstat (limited to 'coreutils/sleep.c')
| -rw-r--r-- | coreutils/sleep.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/coreutils/sleep.c b/coreutils/sleep.c index e48e14b..53fe5a0 100644 --- a/coreutils/sleep.c +++ b/coreutils/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); } |