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/* SPDX-License-Identifier: BSD-3-Clause */
/*
* Copyright (C) 2022, 2023 Ferass El Hafidi <vitali64pmemail@protonmail.com>
*/
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#define REQ_PRINT_USAGE /* Require print_usage() from common.h */
#define REQ_ERRPRINT /* Require errprint() from common.h */
#define DESCRIPTION "Change file modes."
#define OPERANDS "mode file"
#include "common.h"
#ifdef FASESBOX
int chmod_main(int argc, char *argv[]) {
#else
int main(int argc, char *argv[]) {
#endif
int argument, i = 0;
mode_t owner_modes, group_modes, other_modes;
char *argv0 = strdup(argv[0]);
if (argc == 1) {
print_usage(argv[0], DESCRIPTION, OPERANDS, VERSION);
return 1;
}
while ((argument = getopt(argc, argv, "")) != -1) {
if (argument == '?') {
print_usage(argv[0], DESCRIPTION, OPERANDS, VERSION);
return 1;
}
} argc -= optind; argv += optind;
/* I know there's a better way of doing it, please let me know if you
* know a better way of doing it
*/
if (argv[0][i] == '0') i++;
switch (argv[0][i]) {
/* Owner modes */
case '7':
owner_modes = S_IRWXU;
break;
case '4':
owner_modes = S_IRUSR;
break;
case '2':
owner_modes = S_IWUSR;
break;
case '1':
owner_modes = S_IXUSR;
break;
default:
print_usage(argv0, DESCRIPTION, OPERANDS, VERSION);
return 1;
}
i++;
switch (argv[0][i]) {
/* Group modes */
case '7':
group_modes = S_IRWXG;
break;
case '4':
group_modes = S_IRGRP;
break;
case '2':
group_modes = S_IWGRP;
break;
case '1':
group_modes = S_IXGRP;
break;
default:
print_usage(argv0, DESCRIPTION, OPERANDS, VERSION);
return 1;
}
i++;
switch (argv[0][i]) {
/* Other modes */
case '7':
other_modes = S_IRWXO;
break;
case '4':
other_modes = S_IROTH;
break;
case '2':
other_modes = S_IWOTH;
break;
case '1':
other_modes = S_IXOTH;
break;
default:
print_usage(argv0, DESCRIPTION, OPERANDS, VERSION);
return 1;
}
chmod(argv[1], owner_modes | group_modes | other_modes);
return errprint(argv[0], "chmod()", errno);
}
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