149 lines
4.6 KiB
C
149 lines
4.6 KiB
C
//----------------------------------------------------------------------------//
|
|
// GNU GPL OS/K //
|
|
// //
|
|
// Desc: Kernel shell //
|
|
// //
|
|
// //
|
|
// Copyright © 2018-2019 The OS/K Team //
|
|
// //
|
|
// This file is part of OS/K. //
|
|
// //
|
|
// OS/K is free software: you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation, either version 3 of the License, or //
|
|
// any later version. //
|
|
// //
|
|
// OS/K is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY//without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
|
|
//----------------------------------------------------------------------------//
|
|
|
|
#include "shell.h"
|
|
|
|
int shcol = VGA_COLOR_LIGHT_GREY;
|
|
|
|
int shargc = 0;
|
|
char *argvbuf = 0;
|
|
char **shargv = 0;
|
|
|
|
void ExecuteCommand(char *cmdbuf)
|
|
{
|
|
error_t rc;
|
|
Command_t *cmd;
|
|
bool found = false;
|
|
|
|
if (!cmdbuf || !*cmdbuf)
|
|
return;
|
|
|
|
memzero(*shargv, ARG_MAX);
|
|
rc = KalCmdLineToArgVec(cmdbuf, &shargc, argvbuf);
|
|
if (rc) KeStartPanic("Shell: Couldn't parse command line: %d", rc);
|
|
|
|
for (cmd = cmdtable; cmd->name != NULL; cmd++) {
|
|
if (!strcmp(cmd->name, shargv[0])) {
|
|
cmd->func(shargc, shargv, cmdbuf);
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
assert(shargv[0] == argvbuf + ARG_MAX);
|
|
|
|
if (found == false) {
|
|
KernLog("err: command not found: '%.255s' (%ld)\n",
|
|
shargv[0], strlen(shargv[0]));
|
|
}
|
|
}
|
|
|
|
void KeStartShell(void)
|
|
{
|
|
uchar ch;
|
|
error_t rc;
|
|
|
|
char *cmdbuf = malloc(CMDBUFSIZE);
|
|
char *bufptr = cmdbuf;
|
|
|
|
argvbuf = malloc(ARG_MAX * 2);
|
|
memzero(argvbuf, ARG_MAX * 2);
|
|
shargv = (char **)argvbuf;
|
|
|
|
KernLog("\n%Cshell> %C", VGA_COLOR_WHITE, shcol);
|
|
BFlushBuf(BStdOut);
|
|
|
|
while ((rc = BGetFromBuf(BStdIn, &ch)) == EOK || rc == EENDF) {
|
|
// Reset BStdIn's content
|
|
if (rc == EENDF) {
|
|
if (!(BStdIn->flags & BF_ERR)) {
|
|
*bufptr = 0;
|
|
bufptr = cmdbuf;
|
|
ExecuteCommand(cmdbuf);
|
|
|
|
memzero(cmdbuf, CMDBUFSIZE);
|
|
BFlushBuf(BStdIn);
|
|
KernLog("%Cshell> %C", VGA_COLOR_WHITE, shcol);
|
|
BFlushBuf(BStdOut);
|
|
}
|
|
else break;
|
|
}
|
|
|
|
switch (ch) {
|
|
|
|
case KEY_BS:
|
|
*bufptr = 0;
|
|
if (bufptr > cmdbuf) {
|
|
bufptr--;
|
|
}
|
|
break;
|
|
|
|
case KEY_BEL:
|
|
if (rand() % 16 == 0) {
|
|
IoDoStarWars();
|
|
}
|
|
else IoDoBeep();
|
|
break;
|
|
|
|
case KEY_DC1:
|
|
IoScrollUp();
|
|
break;
|
|
|
|
case KEY_DC2:
|
|
IoScrollDown();
|
|
break;
|
|
|
|
case KEY_ESC:
|
|
PoShutdown();
|
|
break;
|
|
|
|
default:
|
|
*bufptr++ = (char)ch;
|
|
|
|
// End of buffer?
|
|
if (bufptr != cmdbuf+CMDBUFSIZE-1) {
|
|
break; // No
|
|
}
|
|
|
|
KernLog("\n");
|
|
// Else, fallthrough to case '\n'
|
|
|
|
case '\n':
|
|
*bufptr = 0;
|
|
bufptr = cmdbuf;
|
|
ExecuteCommand(cmdbuf);
|
|
|
|
memzero(cmdbuf, CMDBUFSIZE);
|
|
KernLog("%Cshell> %C", VGA_COLOR_WHITE, shcol);
|
|
BFlushBuf(BStdIn);
|
|
BFlushBuf(BStdOut);
|
|
break;
|
|
}
|
|
|
|
KePauseCPU();
|
|
}
|
|
KernLog("[EOI]\n");
|
|
}
|
|
|