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#include <ctype.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/utsname.h>
#include "io/read_file.h"
#include "util/option.h"
static const char *usage_string =
"Gebruik: %s [OPTIES]...\n"
"\n"
"Toon systeem informatie\n"
"\n"
" -a Toon alle informatie\n"
" -s Toon kernnaam\n"
" -n Toon netwerk knooppunt gastheernaam\n"
" -r Toon kernuitgave\n"
" -v Toon kernversie\n"
" -m Toon machine harde-goederen-naam\n"
" -h Toon deze hulptekst\n"
" -V Toon versienummer\n";
struct options {
bool print_all;
bool print_sysname;
bool print_nodename;
bool print_release;
bool print_version;
bool print_machine;
};
static void parse_options(int argc, char **argv, struct options *opts) {
const struct option_spec spec[] = {
{'a', OPTION_SETBOOL(&opts->print_all)},
{'s', OPTION_SETBOOL(&opts->print_sysname)},
{'n', OPTION_SETBOOL(&opts->print_nodename)},
{'r', OPTION_SETBOOL(&opts->print_release)},
{'v', OPTION_SETBOOL(&opts->print_version)},
{'m', OPTION_SETBOOL(&opts->print_machine)},
{'h', OPTION_HELPUSAGE(usage_string)},
{'V', OPTION_VERSION()},
OPTION_SPEC_END
};
option_parse(argc, argv, spec);
}
int entry_unaam(int argc, char **argv) {
struct options opts = {0};
parse_options(argc, argv, &opts);
if (opts.print_all == false &&
opts.print_sysname == false &&
opts.print_nodename == false &&
opts.print_release == false &&
opts.print_version == false &&
opts.print_machine == false) {
opts.print_sysname = true;
}
struct utsname name;
uname(&name); // can't fail
bool first = true;
#define PRINT(typ) \
if (opts.print_all || opts.print_ ## typ) { \
printf("%s%s", first ? "" : " ", name.typ); \
first = false; \
}
PRINT(sysname);
PRINT(nodename);
PRINT(release);
PRINT(version);
PRINT(machine);
printf("\n");
return 0;
}
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