229 lines
6.5 KiB
C
229 lines
6.5 KiB
C
#include "../include/shell.h"
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#include "../include/queue.h"
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#include "../include/vga.h"
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#include "../include/common.h"
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#include "../include/task.h"
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#include "../include/cmos.h"
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#include "../include/fat16.h"
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#include "../include/timer.h"
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#include "../include/io.h"
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extern Queue *key_char_queue;
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char getc() {
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while (key_char_queue->size == 0x00) {
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printf("");
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}
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return queue_pop(key_char_queue);
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}
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int gets(char *buf, int buf_size) {
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int index = 0;
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char c;
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while ((c = getc()) != '\n') {
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if (c == '\b') {
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if (index > 0) {
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index--;
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vga_writestring("\b \b");
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}
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} else {
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buf[index++] = c;
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vga_putchar(c);
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}
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}
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buf[index] = '\0';
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vga_putchar(c);
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return index;
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}
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int cmd_parse(char *cmd_str, char **argv, char token) {
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int arg_idx = 0;
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while (arg_idx < MAX_ARG_NR) {
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argv[arg_idx] = NULL;
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arg_idx++;
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}
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char *next = cmd_str;
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int argc = 0;
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while (*next) {
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while (*next == token) *next++;
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if (*next == 0) break;
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argv[argc] = next;
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while (*next && *next != token) *next++;
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if (*next) *next++ = 0;
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if (argc > MAX_ARG_NR) return -1;
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argc++;
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}
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return argc;
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}
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void cmd_echo(int argc, char **argv) {
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for (int i = 1; i < argc; i++) {
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if (i == 1) vga_writestring("");
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else vga_writestring(" ");
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vga_writestring(argv[i]);
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}
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vga_putchar('\n');
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}
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void cmd_proc(){
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print_proc();
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}
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void cmd_date(){
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printf("System Time: %s\n",get_date_time());
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printf("Memory Usage: %dKB | All Size: %dMB\n",memory_usage()/1024,(KHEAP_START+KHEAP_INITIAL_SIZE)/1024/1024);
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print_cpu_id();
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vga_writestring("\n");
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}
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void cmd_ls() {
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struct File *root = (struct File *) kmalloc(sizeof(struct File) * MAX_FILE_NUM);
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int files = read_root_dir(root);
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int index = 0, size = 0;
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for (int i = 0; i < files; ++i) {
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struct File file = root[i];
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if (!strcmp(file.name, "\0")) continue;
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printf("%s %s %d\n", file.name, file.type == 0x20 ? "<FILE>" : " <DIR> ", file.size);
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index++;
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size += file.size;
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}
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printf(" All File: %d | All Size: %dByte\n", index, size);
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kfree(root);
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}
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void cmd_cat(int argc, char **argv) {
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if (argc <= 2) {
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printf("[Shell-CAT]: If there are too few parameters, please specify the filename and data.");
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return;
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}
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struct File *file = open_file(argv[1]);
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if (file == NULL) {
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printf("[Shell-CAT]: Not found [%s] \n", argv[1]);
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return;
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}
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char *buffer[1024] = {0};
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for (int i = 2; i < argc; i++) {
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if (i == 2) strcat(buffer, "");
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else strcat(buffer, " ");
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strcat(buffer, argv[i]);
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}
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save_file(file, buffer);
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kfree(file);
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}
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void cmd_read(int argc, char **argv) {
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if (argc == 1) {
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printf("[Shell-READ]: If there are too few parameters, please specify the filename");
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return;
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}
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struct File *file = open_file(argv[1]);
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char *buffer = (char *) kmalloc(sizeof(char) * 4096);
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if (file == NULL) {
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printf("[Shell-READ]: Not found [%s] \n", argv[1]);
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return;
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}
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read_file(file, buffer);
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printf("%s\n", buffer);
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kfree(buffer);
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kfree(file);
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}
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void cmd_mkdir(int argc, char **argv) {
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if (argc == 1) {
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printf("[Shell-MKDIR]: If there are too few parameters, please specify the directory name");
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return;
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}
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printf("Create directory: %s\n",argv[1]);
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struct File *dir = create_dir(argv[1]);
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if (dir == NULL) {
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printf("[Shell-MKDIR]: Cannot create directory '%s'.", argv[1]);
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return;
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}
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kfree(dir);
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}
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void cmd_del(int argc, char **argv) {
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if (argc == 1) {
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vga_writestring("[Shell-DEL]: If there are too few parameters, please specify the folder name.\n");
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return;
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}
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struct File *info = open_file(argv[1]);
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if (info == NULL) {
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printf("[Shell-DEL]: Not found [%s] \n", argv[1]);
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return;
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}
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delete_file(info);
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kfree(info);
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}
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void cmd_reset(){
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printf("Restart %s for x86...");
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clock_sleep(10);
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outb(0x64,0xfe);
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}
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void setup_shell(){
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vga_clear();
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printf("%s for x86 [Version %s] \n",OS_NAME, OS_VERSION);
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printf("Copyright 2024 XIAOYI12 (Build by GCC i686-elf-tools)\n");
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char com[MAX_COMMAND_LEN];
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char *argv[MAX_ARG_NR];
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int argc = -1;
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while (1) {
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printf("CPOS/> ");
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if (gets(com, MAX_COMMAND_LEN) <= 0) continue;
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argc = cmd_parse(com, argv, ' ');
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if (argc == -1) {
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vga_writestring("[Shell]: Error: out of arguments buffer\n");
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continue;
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}
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if (!strcmp("version", argv[0]))
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printf("%s for x86 [%s]\n",OS_NAME, OS_VERSION);
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else if (!strcmp("echo", argv[0]))
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cmd_echo(argc, argv);
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else if (!strcmp("clear", argv[0]))
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vga_clear();
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else if (!strcmp("proc", argv[0]))
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cmd_proc();
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else if (!strcmp("sysinfo", argv[0]))
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cmd_date();
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else if (!strcmp("ls", argv[0]))
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cmd_ls();
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else if (!strcmp("cat", argv[0]))
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cmd_cat(argc, argv);
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else if (!strcmp("read", argv[0]))
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cmd_read(argc, argv);
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else if (!strcmp("mkdir", argv[0]))
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cmd_mkdir(argc, argv);
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else if (!strcmp("del", argv[0]) || !strcmp("rm", argv[0]))
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cmd_del(argc, argv);
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else if (!strcmp("reset", argv[0]))
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cmd_reset();
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else if (!strcmp("help", argv[0]) || !strcmp("?", argv[0]) || !strcmp("h", argv[0])) {
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vga_writestring("-=[CrashPowerShell Helper]=-\n");
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vga_writestring("help ? h Print shell help info.\n");
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vga_writestring("version Print os version.\n");
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vga_writestring("echo <msg> Print message.\n");
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vga_writestring("ls List all files.\n");
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vga_writestring("cat <name> <data> Edit a file\n");
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vga_writestring("read <name> Read a file\n");
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vga_writestring("mkdir <name> Make a directory\n");
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vga_writestring("del rm <name> Delete a file\n");
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vga_writestring("sysinfo Print system info.\n");
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vga_writestring("proc Lists all running processes.\n");
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vga_writestring("reset Reset OS.\n");
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} else printf("[Shell]: Unknown command '%s'.\n", argv[0]);
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}
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}
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