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/* mv - move files.
* Copyright (C) 2022 Ferass EL HAFIDI
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include "version.h"
#ifndef COMPILETIME
#define COMPILETIME
#endif
int getopt(int argc, char *const argv[], const char *optstring);
void printUsage();
int main(int argc, char *const argv[]) {
int argument, file;
char cmd, param[256];
setvbuf(stdout, NULL, _IONBF, 0);
for (int i = 0; i < 256; i++) param[i] = 0; /* Initialise param,
* very important. */
while ((argument = getopt(argc, argv, "if")) != -1) {
if (argument == '?') {
printUsage();
return 1;
}
param[argument] = argument;
if (argument == 'f') param['i'] = 0;
if (argument == 'i') param['f'] = 0;
}
if (!param['f']) param['i'] = 'i';
if (argc < 3) {
printUsage();
return 1;
}
if ((file = open(argv[2], O_RDONLY)) != -1 && param['i']) {
printf("File exists, override it? (y/n) ");
read(STDIN_FILENO, &cmd, 3);
if (cmd == 'n' || cmd == 'N') {
close(file);
return 0;
}
}
close(file); /* In case it hasn't been closed */
rename(argv[1], argv[2]); /* Technically, moving files == renaming files */
if (errno) return errno;
return 0;
}
void printUsage() {
printf("Ferass' Base System. (%s)\n\n"
"Usage: mv [-if] file1 file2\n\n"
"Move <file1> to <file2>.\n\n"
"\t-i\tIf <file2> exists, ask for confirmation\n"
"\t-f\tNever ask for confirmation\n", COMPILETIME);
}
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