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shell.c
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shell.c
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#include "shell.h"
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include "memory/alloc.h"
#include "datastruct/string.h"
#include "fs.h"
#include "shell_command.h"
#define MAX_LINE (1024 * 4)
#define MAX_ARGC 1024
static int cmd_dispath(const char* cmd, int argc, char* argv[]);
int shell_main(void)
{
fs_chdir("A:/");
char line[MAX_LINE];
char* argv[MAX_ARGC];
while (true) {
char cd[FS_MAX_FILE_PATH];
fs_getcwd(cd, FS_MAX_FILE_PATH);
printf("fulfs@%s", cd);
printf(" >>> ");
if (fgets(line, sizeof(line) / sizeof(*line), stdin) == NULL) {
return 0;
}
/* 解析参数 */
int argc = 0;
const char* p;
size_t size = 0;
const char* next = line;
while (((p = ft_string_split_next(next, " ", &size)) != NULL) && argc <= MAX_ARGC) {
argv[argc] = (char* )p;
ft_str_strip(argv[argc]);
if (p[size] == '\0') {
next = p + size;
} else {
next = p + size + 1;
}
((char *)p)[size] = '\0';
if (argv[argc][0] != '\0') {
argc++;
}
}
if (argc > 0) {
cmd_dispath(argv[0], argc - 1, argv + 1);
}
}
return 0;
}
int cmd_dispath(const char* cmd, int argc, char* argv[])
{
struct {
const char* name;
shell_cmd_f* func;
}commands[] = {
{"pwd", cmd_pwd},
{"cd", cmd_cd},
{"rmdir", cmd_rmdir},
{"mkdir", cmd_mkdir},
{"ls", cmd_ls},
{"cp", cmd_cp},
{"mv", cmd_mv},
{"rm", cmd_rm},
{"tree", cmd_tree},
{"ln", cmd_ln},
{"stat", cmd_stat},
{"cat", cmd_cat},
{"df", cmd_df},
{"createfile", cmd_createfile},
};
for (size_t i = 0; i < sizeof(commands) / sizeof(*commands); i++) {
if (strcmp(cmd, commands[i].name) == 0) {
return commands[i].func(argc, argv);
}
}
printf("不存在命令%s!\n", cmd);
return -1;
}