You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
1.4 KiB
77 lines
1.4 KiB
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <console.h>
|
|
#include <shell.h>
|
|
|
|
int cmd_exec(struct cmd *cmds, struct console *con, size_t argc,
|
|
const char **argv)
|
|
{
|
|
struct cmd *cmd;
|
|
|
|
if (argc < 1)
|
|
return -1;
|
|
|
|
for (cmd = cmds; cmd->cmd; ++cmd) {
|
|
if (strcmp(cmd->cmd, argv[0]) == 0) {
|
|
return cmd->exec(con, argc - 1, argv + 1);
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int cmd_parse(struct cmd *cmds, struct console *con, const char *line)
|
|
{
|
|
char **argv;
|
|
size_t argc;
|
|
int ret;
|
|
|
|
if (!(argv = parse_args(line, &argc)))
|
|
return -1;
|
|
|
|
ret = cmd_exec(cmds, con, argc, (const char **)argv);
|
|
free(argv);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int shell_init(struct shell *shell, struct cmd *cmds,
|
|
struct console *con, const char *prompt, unsigned flags)
|
|
{
|
|
if (!shell || !con)
|
|
return -1;
|
|
|
|
memset(shell->line, '\0', sizeof shell->line);
|
|
shell->cmds = cmds;
|
|
shell->con = con;
|
|
shell->prompt = prompt;
|
|
shell->flags = flags;
|
|
|
|
fprintf(shell->con->fp, "%s ", prompt ? prompt : "#");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int shell_parse(struct shell *shell)
|
|
{
|
|
int ret;
|
|
|
|
if (!shell)
|
|
return -1;
|
|
|
|
if ((ret = console_getline(shell->con, shell->line, sizeof shell->line)) <
|
|
0)
|
|
return ret;
|
|
|
|
ret = cmd_parse(shell->cmds, shell->con, shell->line);
|
|
|
|
if (shell->flags & SHELL_SHOW_EXIT_CODE)
|
|
fprintf(shell->con->fp, "\004%d\n\004", ret);
|
|
|
|
fprintf(shell->con->fp, "%s ", shell->prompt ? shell->prompt : "#");
|
|
*shell->line = '\0';
|
|
|
|
return 0;
|
|
}
|
|
|