05765771c2
Coding style fixed and more readable help output. Signed-off-by: Sami Kerola <kerolasa@iki.fi>
46 lines
969 B
C
46 lines
969 B
C
#include <errno.h>
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#include <getopt.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "proc/whattime.h"
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#include "proc/version.h"
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static void __attribute__ ((__noreturn__))
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usage(FILE * out)
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{
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fprintf(out,
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"\nUsage: %s [options]\n"
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"\nOptions:\n", program_invocation_short_name);
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fprintf(out,
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" -h, --help display this help text\n"
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" -V, --version display version information and exit\n");
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fprintf(out, "\nFor more information see uptime(1).\n");
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exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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int main(int argc, char **argv)
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{
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int c;
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static const struct option longopts[] = {
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'V'},
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{NULL, 0, NULL, 0}
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};
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while ((c = getopt_long(argc, argv, "hV", longopts, NULL)) != -1)
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switch (c) {
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case 'h':
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usage(stdout);
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case 'V':
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display_version();
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return EXIT_SUCCESS;
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default:
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usage(stderr);
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}
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print_uptime();
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return EXIT_SUCCESS;
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}
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