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// SPDX-License-Identifier: 0BSD
// TODO: Possibly use getprogname() instead of using argv[0] to get the
// utility name.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "utilities/include.h"
#define ARRAY_LENGTH(array) (sizeof(array) / sizeof((array)[0]))
typedef struct Command {
char *name;
int (*function)(int, char **);
} Command;
#define STR2(_x) #_x
#define STR(_x) STR2(_x)
#define COMMAND(NAME) {STR(NAME), NAME##_main}
Command utilities[] = {COMMAND(minibox), COMMAND(ascii), COMMAND(echo),
COMMAND(cat), COMMAND(yes), COMMAND(wc),
COMMAND(init), COMMAND(ls), COMMAND(touch),
COMMAND(ed), COMMAND(sh), COMMAND(kill),
COMMAND(sha1sum), COMMAND(rdate), COMMAND(true),
COMMAND(false), COMMAND(lock)};
char *parse_filename(char *str) {
char *tmp = NULL, *is = str;
for (; *is++;) {
if ('/' == *is) {
tmp = is;
}
}
return tmp ? tmp + 1 : str;
}
void usage(void) {
for (int i = 0; i < ARRAY_LENGTH(utilities); i++) {
printf("%s ", utilities[i].name);
}
printf("\n");
}
int main(int argc, char **argv) {
if (argc < 1) {
return 1;
}
#ifdef SINGLE_MAIN
return utilities[0].function(argc, argv);
#endif
// argv[0] will be checked to determine what utility
// is supposed to be ran.
// NOTE: "minibox" is a utility than can be ran. "minibox"
// will switch argv and argc so that argv[1] -> argv[0]
// then it will rerun main(). This allows utlities
// to be ran like "minibox <utility> <arguments>" or
// even "minibox minibox <utility> <arguments>"
const char *utility_name = parse_filename(argv[0]);
if (*utility_name == '/') {
utility_name++;
}
for (int i = 0; i < ARRAY_LENGTH(utilities); i++) {
if (0 == strcmp(utility_name, utilities[i].name)) {
return utilities[i].function(argc, argv);
}
}
usage();
return 0;
}
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