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shell: return exit codes to the user console

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This commit is contained in:
S.J.R. van Schaik 2017-07-27 12:15:24 +02:00
parent 2942340b21
commit 4aa807a7b3
3 changed files with 16 additions and 5 deletions
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7
include/shell.h
View file

@ -1,5 +1,7 @@
#pragma once
#include <macros.h>
struct console;
struct cmd {
@ -13,8 +15,11 @@ struct shell {
struct cmd *cmds;
const char *prompt;
struct console *con;
unsigned flags;
};
#define SHELL_SHOW_EXIT_CODE BIT(0)
size_t count_args(const char *line);
char **parse_args(const char *line, size_t *argc);
@ -23,7 +28,7 @@ int cmd_exec(struct cmd *cmds, struct console *con, size_t argc,
int cmd_parse(struct cmd *cmds, struct console *con, const char *line);
int shell_init(struct shell *shell, struct cmd *cmds,
struct console *con, const char *prompt);
struct console *con, const char *prompt, unsigned flags);
int shell_parse(struct shell *shell);
int do_flash_cmd(struct console *con, size_t argc, const char **argv);

5
source/main.c
View file

@ -64,8 +64,9 @@ int main(void)
fprintf(user_con->fp, "TBM-dev (built on " __DATE__ ")\n");
fprintf(admin_con->fp, "TBM-dev (built on " __DATE__ ")\n");
shell_init(&user_shell, user_cmds, user_con, "tbm $");
shell_init(&admin_shell, admin_cmds, admin_con, "tbm #");
shell_init(&user_shell, user_cmds, user_con, "tbm $",
SHELL_SHOW_EXIT_CODE);
shell_init(&admin_shell, admin_cmds, admin_con, "tbm #", 0);
while (1) {
shell_parse(&user_shell);

9
source/shell/cmd.c
View file

@ -38,7 +38,7 @@ int cmd_parse(struct cmd *cmds, struct console *con, const char *line)
}
int shell_init(struct shell *shell, struct cmd *cmds,
struct console *con, const char *prompt)
struct console *con, const char *prompt, unsigned flags)
{
if (!shell || !con)
return -1;
@ -47,6 +47,7 @@ int shell_init(struct shell *shell, struct cmd *cmds,
shell->cmds = cmds;
shell->con = con;
shell->prompt = prompt;
shell->flags = flags;
fprintf(shell->con->fp, "%s ", prompt ? prompt : "#");
@ -64,7 +65,11 @@ int shell_parse(struct shell *shell)
0)
return ret;
cmd_parse(shell->cmds, shell->con, shell->line);
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';