Fix warnings. This is now WARNS=9, std=c99 clean in i386.
Use return(0) for main() instead of exit(0). Makes it a wee bit smaller.
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57dfbec57b
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fcfa4c9589
@ -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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@ -64,7 +64,7 @@ main(int argc, char *argv[])
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if (argc != 2) {
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usage();
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/* NOTREACHED */
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return(1);
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}
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p = argv[1];
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@ -78,9 +78,10 @@ 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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if (!isdigit((unsigned char)*p) && *p != '.') {
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usage();
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/* NOTREACHED */
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return(1);
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}
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}
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else if (*p == '+')
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++p;
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@ -109,20 +110,20 @@ main(int argc, char *argv[])
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time_to_sleep.tv_nsec += (*p - '0') * l;
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else
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break;
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} while (l /= 10);
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l /= 10;
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} while (l);
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}
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if (!neg && (time_to_sleep.tv_sec > 0 || time_to_sleep.tv_nsec > 0))
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(void)nanosleep(&time_to_sleep, (struct timespec *)NULL);
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exit(0);
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return(0);
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}
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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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const char msg[] = "usage: sleep seconds\n";
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write(STDERR_FILENO, msg, strlen(msg));
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exit(1);
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write(STDERR_FILENO, msg, sizeof(msg) - 1);
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}
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