124 lines
3.0 KiB
C
124 lines
3.0 KiB
C
#include <stdio.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "kocdecl.h"
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#define FGETS_BUF_LEN 4096
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#define MAX_COMMAND_ARGS 42
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char cmd_buf[FGETS_BUF_LEN];
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bool is_tty;
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int cmd_num = 0;
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void prompt() {
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fprintf(stderr, "#%d> ", cmd_num);
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}
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bool next_line() {
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if (is_tty) {
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prompt();
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}
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return fgets(cmd_buf, FGETS_BUF_LEN, stdin) != NULL;
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}
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char **split_args(char *s) {
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int argc = -1;
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char **argv = (char**)malloc(sizeof(char*) * (MAX_COMMAND_ARGS + 1));
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char *saveptr;
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for ( ; (argv[++argc] = strtok_r(s, " \t\n", &saveptr)) != NULL; s = NULL );
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return argv;
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}
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void kofu_ls(char **arg) {
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void *header = kos_fuse_readdir(arg[1], 0);
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uint32_t file_cnt = ((uint32_t*)header)[1];
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printf("file_cnt: %u\n", file_cnt);
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struct bdfe *kf = header + 0x20;
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for (; file_cnt > 0; file_cnt--) {
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printf("%s\n", kf->name);
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kf++;
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}
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return;
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}
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void kofu_stat(char **arg) {
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struct bdfe *kf = kos_fuse_getattr(arg[1]);
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printf("attr: 0x%2.2x\n", kf->attr);
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printf("size: %llu\n", kf->size);
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return;
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}
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void kofu_read(char **arg) {
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size_t size;
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size_t offset;
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sscanf(arg[2], "%zu", &size);
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sscanf(arg[3], "%zu", &offset);
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char *buf = (char*)malloc(size + 4096);
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kos_fuse_read(arg[1], buf, size, offset);
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for (size_t i = 0; i < size; i++) {
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if (i % 32 == 0 && i != 0) {
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printf("\n");
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}
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printf("%2.2x", buf[i]);
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}
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printf("\n");
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return;
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}
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struct func_table {
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char *name;
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void (*func) (char **arg);
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};
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struct func_table funcs[] = {
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{ "ls", kofu_ls },
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{ "stat", kofu_stat },
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{ "read", kofu_read },
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{ NULL, NULL },
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};
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int main(int argc, char **argv) {
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if (argc != 2) {
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printf("usage: kofu <file.xfs>\n");
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exit(1);
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}
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is_tty = isatty(STDIN_FILENO);
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int fd = open(argv[1], O_RDONLY);
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if (!kos_fuse_init(fd)) {
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exit(1);
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}
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//msg_few_args db 'usage: xfskos image [offset]',0x0a
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//msg_file_not_found db 'file not found: '
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//msg_unknown_command db 'unknown command',0x0a
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//msg_not_xfs_partition db 'not xfs partition',0x0a
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while(next_line()) {
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if (!is_tty) {
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prompt();
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fprintf(stderr, "%s", cmd_buf);
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}
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char **arg = split_args(cmd_buf);
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bool found = false;
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for (struct func_table *ft = funcs; ft->name != NULL; ft++) {
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if (!strcmp(arg[0], ft->name)) {
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found = true;
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ft->func(arg);
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cmd_num++;
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break;
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}
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}
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if (!found) {
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printf("unknown command: %s\n", arg[0]);
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}
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}
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return 0;
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}
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