Minimal take on previous commit -- remove getopt and printf. Static size
is reduced by 40k, dynamic by a few bytes. Functional changes: * "sleep -- arg" now returns usage() instead of ignoring the -- * "sleep -1" now returns immediately instead of returning usage() Reviewed by: jmallett
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parent
e021938408
commit
e9a4552b14
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=106883
@ -47,10 +47,10 @@ __FBSDID("$FreeBSD$");
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#include <ctype.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include <string.h>
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void usage(void);
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@ -59,25 +59,15 @@ main(int argc, char *argv[])
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{
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struct timespec time_to_sleep;
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long l;
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int ch, neg;
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int neg;
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char *p;
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while ((ch = getopt(argc, argv, "")) != -1)
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switch(ch) {
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case '?':
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default:
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usage();
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/* NOTREACHED */
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}
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argc -= optind;
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argv += optind;
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if (argc != 1) {
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if (argc != 2) {
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usage();
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/* NOTREACHED */
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}
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p = argv[0];
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p = argv[1];
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/* Skip over leading whitespaces. */
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while (isspace((unsigned char)*p))
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@ -88,6 +78,9 @@ main(int argc, char *argv[])
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if (*p == '-') {
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neg = 1;
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++p;
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if (!isdigit((unsigned char)*p) && *p != '.')
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usage();
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/* NOTREACHED */
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}
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else if (*p == '+')
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++p;
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@ -128,7 +121,8 @@ main(int argc, char *argv[])
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void
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usage(void)
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{
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const char *msg = "usage: sleep seconds\n";
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(void)fprintf(stderr, "usage: sleep seconds\n");
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write(STDERR_FILENO, msg, strlen(msg));
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exit(1);
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}
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