boredos_mirror/src/kernel/userland/mv.c
2026-03-01 17:10:41 +01:00

128 lines
3.6 KiB
C

// Copyright (c) 2023-2026 Chris (boreddevnl)
// This software is released under the GNU General Public License v3.0. See LICENSE file for details.
// This header needs to maintain in any file it is present in, as per the GPL license terms.
#include <stdlib.h>
#include <syscall.h>
void combine_path(char *dest, const char *path1, const char *path2) {
int i = 0;
while (path1[i]) {
dest[i] = path1[i];
i++;
}
if (i > 0 && dest[i-1] != '/') {
dest[i++] = '/';
}
int j = 0;
while (path2[j]) {
dest[i++] = path2[j++];
}
dest[i] = 0;
}
const char* get_basename(const char *path) {
const char *last_slash = NULL;
int len = 0;
while (path[len]) {
if (path[len] == '/') last_slash = path + len;
len++;
}
if (!last_slash) return path;
if (last_slash[1] == '\0') {
if (len <= 1) return path;
int i = len - 2;
while (i >= 0 && path[i] != '/') i--;
if (i < 0) return path;
return path + i + 1;
}
return last_slash + 1;
}
void copy_recursive(const char *src, const char *dst) {
FAT32_FileInfo info;
if (sys_get_file_info(src, &info) < 0) return;
if (info.is_directory) {
sys_mkdir(dst);
FAT32_FileInfo entries[64];
int count = sys_list(src, entries, 64);
for (int i = 0; i < count; i++) {
if (strcmp(entries[i].name, ".") == 0 || strcmp(entries[i].name, "..") == 0) continue;
char sub_src[512], sub_dst[512];
combine_path(sub_src, src, entries[i].name);
combine_path(sub_dst, dst, entries[i].name);
copy_recursive(sub_src, sub_dst);
}
} else {
int fd_in = sys_open(src, "r");
if (fd_in < 0) return;
int fd_out = sys_open(dst, "w");
if (fd_out < 0) { sys_close(fd_in); return; }
char buffer[4096];
int bytes;
while ((bytes = sys_read(fd_in, buffer, sizeof(buffer))) > 0) {
sys_write_fs(fd_out, buffer, bytes);
}
sys_close(fd_in);
sys_close(fd_out);
}
}
void delete_recursive(const char *path) {
FAT32_FileInfo info;
if (sys_get_file_info(path, &info) < 0) return;
if (info.is_directory) {
FAT32_FileInfo entries[64];
int count = sys_list(path, entries, 64);
for (int i = 0; i < count; i++) {
if (strcmp(entries[i].name, ".") == 0 || strcmp(entries[i].name, "..") == 0) continue;
char sub_path[512];
combine_path(sub_path, path, entries[i].name);
delete_recursive(sub_path);
}
sys_delete(path);
} else {
sys_delete(path);
}
}
int main(int argc, char **argv) {
if (argc < 3) {
printf("Usage: mv <source> <dest>\n");
return 1;
}
char *src_path = argv[1];
char *dst_path = argv[2];
FAT32_FileInfo info_src;
if (sys_get_file_info(src_path, &info_src) < 0) {
printf("Error: Cannot open source %s\n", src_path);
return 1;
}
char actual_dst[512];
FAT32_FileInfo info_dst;
if (sys_get_file_info(dst_path, &info_dst) == 0 && info_dst.is_directory) {
const char *base = get_basename(src_path);
char clean_base[256];
int k = 0;
while (base[k] && base[k] != '/') {
clean_base[k] = base[k];
k++;
}
clean_base[k] = 0;
combine_path(actual_dst, dst_path, clean_base);
} else {
strcpy(actual_dst, dst_path);
}
copy_recursive(src_path, actual_dst);
delete_recursive(src_path);
return 0;
}