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isosize: use long options 

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
Sami Kerola 2011-06-30 20:54:55 +02:00
parent 67a450ceaf
commit 4eba43a768
1 changed files with 24 additions and 15 deletions
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39
disk-utils/isosize.c
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@ -152,33 +152,37 @@ isosize(char *filenamep, int xflag, int divisor) {
static void __attribute__((__noreturn__)) usage(FILE *out)
{
fprintf(out, _("Usage: %s [-x] [-d <num>] iso9660-image\n"),
fprintf(out, _("\nUsage:\n"
" %s [options] iso9660_image_file\n"),
program_invocation_short_name);
fprintf(out, _("\nOptions:\n"
" -d, --divisor=NUM devide bytes NUM\n"
" -x, --sectors show sector count and size\n"
" -V, --version output version information and exit\n"
" -H, --help display this help and exit\n\n"));
exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
}
int
main(int argc, char * argv[]) {
int j, ct, xflag = 0;
int j, ct, opt, xflag = 0;
int divisor = 0;
static const struct option longopts[] = {
{"divisor", no_argument, 0, 'd'},
{"sectors", no_argument, 0, 'x'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{NULL, 0, 0, 0}
};
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
if (argc >= 2 &&
(!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))) {
printf(_("%s (%s)\n"), program_invocation_short_name, PACKAGE_STRING);
return EXIT_SUCCESS;
}
for (;;) {
int opt;
opt = getopt(argc, argv, "xd:");
if (opt == -1)
break;
while ((opt = getopt_long(argc, argv, "d:xVh", longopts, NULL)) != -1)
switch (opt) {
case 'd':
divisor = atoi(optarg);
@ -186,10 +190,15 @@ main(int argc, char * argv[]) {
case 'x':
xflag = 1;
break;
case 'V':
printf(_("%s (%s)\n"), program_invocation_short_name,
PACKAGE_STRING);
return EXIT_SUCCESS;
case 'h':
usage(stdout);
default:
usage(stderr);
}
}
ct = argc - optind;