kmain() {
int i,num;
/* CARGA DE IDT CON LA RUTINA DE ATENCION DE IRQ0 */
setup_IDT_entry (&idt[0x08], 0x08, (dword)&_int_08_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x09], 0x08, (dword)&_int_09_hand, ACS_INT, 0);
setup_IDT_entry (&idt[0x80], 0x08, (dword)&_int_80_hand, ACS_INT, 0);
/* Carga de IDTR */
idtr.base = 0;
idtr.base +=(dword) &idt;
idtr.limit = sizeof(idt)-1;
_lidt (&idtr);
_Cli();
/* Habilito interrupcion de timer tick*/
//_mascaraPIC1(INT_08 & INT_09 & INT_80);
_mascaraPIC1(0x00);
_mascaraPIC2(NONE);
_Sti();
initKeyBoard();
initVideo();
initShell();
doubleFlagsFix(1.1);
while (1) {
updateShell();
}
}
/**
@brief Runs the shell
Using system processs and child process for calling
various executable to mimic the shell
*/
void main()
{
// Compile al files
initShell();
// Run the shell
runMyshell();
}
void startShell() {
initShell();
printIntro();
char initialInputChar = '\0';
while (initialInputChar != EOF) {
promptPrefix();
initialInputChar = getchar();
// User hits enter
if (initialInputChar == '\n') {
continue;
// End of file symbol reached
} else if (initialInputChar == EOF) {
break;
// User is typing a command
} else {
// Adding the 'initialInputChar' as the first character of the command
int inputCounter = 0;
char shellInput[INPUT_SIZE];
shellInput[inputCounter++] = initialInputChar;
// Waiting for more user input
char tempChar;
while (inputCounter < INPUT_SIZE) {
tempChar = getchar();
// User has finished typing command
if (tempChar == '\n') {
// Properly ending the input
shellInput[inputCounter] = '\0';
// Performing the command
AppCommand appCommand = identifyCommand(shellInput);
performCommand(appCommand, shellInput);
break;
// Forming command
} else {
shellInput[inputCounter++] = tempChar;
}
}
// Freeing memory for the inputted string
memset(shellInput, 0, INPUT_SIZE);
}
}
}
int main(){
initShell();
initProcessList();
while(1){
prompt(); //substituir por variavel - para mostra o diretorio que esta
newProcess = (Process_Object *)malloc(sizeof(Process_Object));
parser();
runProcess(newProcess);
//resetAttributes();
}
}
void initKernel(multiboot_info_t* multibootInfo, unsigned int magic)
{
asm("cli");
initArch();
initShell();
asm("sti");
if (magic != 0x2BADB002)
{
ttyPrint("Please use a Multiboot compliant bootloader to boot IsaacOS!\n", ttyRed);
for (;;)
asm("hlt");
}
initKeyboardBuffer();
}
int main()
{
char cmd[MAX_BUF];
char **args;
int socket;
int i;
/* allocate memory for command arguments */
args = (char **) calloc(MAX_ARGS, sizeof(char*));
for (i=0; i<MAX_ARGS; ++i)
args[i] = (char *) calloc(MAX_BUF, sizeof(char));
/* initialize socket and connect to logger */
initShell(&socket);
/* prompt user for shell command, fork another
process to execute */
while (1) {
printf("<cuShell> ");
fgets(cmd, sizeof(cmd), stdin);
cmd[strlen(cmd)-1] = 0;
send(socket, cmd, strlen(cmd), 0);
if (strcmp(cmd, "exit") == 0 || strcmp(cmd, "quit") == 0)
break;
int pid = fork();
if (pid != 0) {
wait(NULL);
}
else {
parse(cmd, args);
execvp(args[0], args);
exit(0);
}
}
/* clean up */
for (i=0; i<MAX_ARGS; ++i)
free(args[i]);
free(args);
close(socket);
return 0;
}
int
main(void)
{
wl_err_t wl_status;
int status;
struct ctx_server *hs;
enum wl_host_attention_mode mode;
startup_init();
board_init();
led_init();
tc_init();
delay_init(FOSC0);
#ifdef _TEST_SPI_
for (;;)
{
/* handle console input */
console_poll();
spi_poll(NULL);
}
#else
printk("Arduino Wifi Startup... [%s]\n", timestamp);
size_t size_ctx_server = sizeof(struct ctx_server);
hs = calloc(1, size_ctx_server);
ASSERT(hs, "out of memory");
size_t size_netif = sizeof(struct netif);
hs->net_cfg.netif = calloc(1, size_netif);
ASSERT(hs->net_cfg.netif, "out of memory");
hs->net_cfg.dhcp_enabled = INIT_IP_CONFIG;
INFO_INIT("hs:%p size:0x%x netif:%p size:0x%x\n", hs, size_ctx_server,
hs->net_cfg.netif, size_netif);
initShell(hs);
timer_init(NULL, NULL);
lwip_init();
status = fw_download_init();
ASSERT(status == 0, "failed to prepare for firmware download\n");
wl_status = wl_transport_init(fw_read_cb, hs, &mode);
if (wl_status != WL_SUCCESS)
goto err;
INFO_INIT("Mode: 0x%x\n", mode);
wl_status = wl_init(hs, wl_init_complete_cb, mode);
if (wl_status != WL_SUCCESS)
goto err;
/* start main loop */
for (;;)
poll(hs);
err:
/* show error message on console and display if wlan initialization fails */
#define WL_CARD_FAILURE_STR "Could not detect wl device, aborting\n"
#define WL_FIRMWARE_INVALID_STR "Invalid firmware data, aborting\n"
#define WL_OTHER_FAILURE_STR "Failed to start wl initialization\n"
switch (wl_status) {
case WL_CARD_FAILURE:
printk(WL_CARD_FAILURE_STR);
break;
case WL_FIRMWARE_INVALID:
printk(WL_FIRMWARE_INVALID_STR);
break;
default:
printk(WL_OTHER_FAILURE_STR);
break;
}
for (;;) {
timer_poll();
}
#endif
}
Initializer::Initializer(int& argc, char**& argv, ToolType tool)
: argc_(&argc),
argv_(&argv),
tool_(tool),
binary_((tool == ToolType::DAEMON) ? "osqueryd" : "osqueryi") {
std::srand(static_cast<unsigned int>(
chrono_clock::now().time_since_epoch().count()));
// Initialize registries and plugins
registryAndPluginInit();
// The 'main' thread is that which executes the initializer.
kMainThreadId = std::this_thread::get_id();
// Set the tool type to allow runtime decisions based on daemon, shell, etc.
kToolType = tool;
// Handled boost filesystem locale problems fixes in 1.56.
// See issue #1559 for the discussion and upstream boost patch.
try {
boost::filesystem::path::codecvt();
} catch (const std::runtime_error& /* e */) {
#ifdef WIN32
setlocale(LC_ALL, "C");
#else
setenv("LC_ALL", "C", 1);
#endif
}
Flag::create("logtostderr",
{"Log messages to stderr in addition to the logger plugin(s)",
false,
false,
true,
false});
Flag::create("stderrthreshold",
{"Stderr log level threshold", false, false, true, false});
// osquery implements a custom help/usage output.
for (int i = 1; i < *argc_; i++) {
auto help = std::string((*argv_)[i]);
if ((help == "--help" || help == "-help" || help == "--h" ||
help == "-h") &&
tool != ToolType::TEST) {
printUsage(binary_, tool_);
shutdown();
}
}
if (tool == ToolType::SHELL) {
// The shell is transient, rewrite config-loaded paths.
FLAGS_disable_logging = true;
// The shell never will not fork a worker.
FLAGS_disable_watchdog = true;
FLAGS_disable_events = true;
}
bool default_flags = false;
if (FLAGS_flagfile.empty() && isReadable(kDefaultFlagfile)) {
// No flagfile was set (daemons and services always set a flagfile).
default_flags = true;
FLAGS_flagfile = kDefaultFlagfile;
}
// Set version string from CMake build
GFLAGS_NAMESPACE::SetVersionString(kVersion.c_str());
// Let gflags parse the non-help options/flags.
GFLAGS_NAMESPACE::ParseCommandLineFlags(
argc_, argv_, (tool == ToolType::SHELL));
if (tool == ToolType::SHELL) {
if (Flag::isDefault("database_path") &&
Flag::isDefault("disable_database")) {
// The shell should not use a database by default, but should use the DB
// specified by database_path if it is set
FLAGS_disable_database = true;
}
// Initialize the shell after setting modified defaults and parsing flags.
initShell();
} else {
// The daemon will only output ERROR logs to stderr.
if (Flag::isDefault("stderrthreshold")) {
Flag::updateValue("stderrthreshold", "2");
}
}
#ifndef WIN32
// All tools handle the same set of signals.
// If a daemon process is a watchdog the signal is passed to the worker,
// unless the worker has not yet started.
std::signal(SIGTERM, signalHandler);
std::signal(SIGINT, signalHandler);
std::signal(SIGHUP, signalHandler);
std::signal(SIGALRM, signalHandler);
std::signal(SIGCHLD, SIG_IGN);
#endif
std::signal(SIGABRT, signalHandler);
std::signal(SIGUSR1, signalHandler);
// If the caller is checking configuration, disable the watchdog/worker.
if (FLAGS_config_check) {
FLAGS_disable_watchdog = true;
}
// Initialize the status and results logger.
initStatusLogger(binary_);
if (tool != ToolType::EXTENSION) {
if (isWorker()) {
VLOG(1) << "osquery worker initialized [watcher="
<< PlatformProcess::getLauncherProcess()->pid() << "]";
} else {
VLOG(1) << "osquery initialized [version=" << kVersion << "]";
}
} else {
VLOG(1) << "osquery extension initialized [sdk=" << kSDKVersion << "]";
}
if (default_flags) {
VLOG(1) << "Using default flagfile: " << kDefaultFlagfile;
}
// Initialize the COM libs
platformSetup();
}
int main(int argc, char *argv[])
{
initShell();
//signal(SIGCHLD, SIG_IGN);
//Declarations
int bytes_read,no_of_tokens,no_of_commands=0,redirectFlag=0;
char uname[80],homedir[256],input[1024],hostname[80],tempstr[256],cwd[256];
char *cmdline, *sentence, *line, *token,**savedTokens, **command, *cmd, *mcptr, *com;
size_t length,homedirlen;
pid_t childPid;
//Change Shell home dir to ~
getcwd(homedir , sizeof(homedir) );
getusername(uname);
homedirlen=strlen(homedir);
strcpy(cwd,homedir);
/* int ptr=0;
for(ptr=0;ptr<=1000;ptr++)
{
jobs[ptr]=NULL;
}*/
int exit_flag=0;
while (1)
{
sigset_t mask, prevmask;
//Initialize mask with just the SIGCHLD signal
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
sigprocmask(SIG_BLOCK, &mask, &prevmask); /*block SIGCHLD, get previous mask*/
no_of_tokens=0;
command=malloc ( 200 * sizeof(char)); //Number of commands there can be will be stored in 2D Array
cmdline = (char *) malloc (1025 * sizeof(char));
line = (char *) malloc (1025 * sizeof(char));
cmd = (char *) malloc (1025 * sizeof(char));
savedTokens=malloc ( 100 * sizeof(char)); //Number of tokens there can be
strcpy(line,"\n");
gethostname(hostname, sizeof(hostname));
getcwd(cwd , sizeof(cwd) );
//printf("PRINT THIS : %s\n",cwd+homedirlen );
//printf("CWD: %d HOMEDIR: %d\n",strlen(cwd),strlen(homedir) );
if( strncmp( cwd, homedir, homedirlen-1) == 0) // && strncmp( cwd, homedir, homedirlen-1)!=0) //If the current working directory is not ~
{
strcpy(tempstr,"~");
//printf("HOME DIR IS: %s\n",tempstr );
strcat(tempstr,cwd+homedirlen);
strcpy(cwd, tempstr);
}
int jumper=setjmp(env);
printf("<%s@%s:%s>",uname,hostname,cwd ); //PROMPT
getline (&line, &length+1, stdin);
//PARSING:
//Stage 1: Handling multiple commands:
int k=0;
token = strtok (line, ";");
command[k]=token;
while ( token!=NULL )
{
command[k]=token;
token = strtok (NULL,";");
k++;
}
no_of_commands=k-1;
if(no_of_commands==-1)
{
printf("Exiting main shell!\n");
printf("\n");
return 0;
}
else if(command[no_of_commands]!=NULL)
{
int len=strlen(command[no_of_commands]);
command[no_of_commands][len-1]=0; //Last token gets an extra \n .. therefore removed here.
}
//STAGE 2:
for(k=0;k<=no_of_commands;k++)
{
/* sigset_t mask, prevmask;
//Initialize mask with just the SIGCHLD signal
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
sigprocmask(SIG_BLOCK, &mask, &prevmask); /*block SIGCHLD, get previous mask*/
cmdline = command[k];
com = (char *) malloc (1025 * sizeof(char));
if(command[k]!=NULL)
strcpy(com,command[k]); //com stores the whole command to be executed
else
com=NULL;
//Stage 3: Piping
int no_of_pipes=0;
if(com!=NULL)
{
redirectFlag=isRedirect(com);
no_of_pipes=isPipeJob(com);
}
if(no_of_pipes!=0)
{
int status;
pid_t procid=fork();
if(procid==0)
{
executePipe(no_of_pipes,com,redirectFlag,homedir);
}
else
{
sigprocmask(SIG_SETMASK, &prevmask, NULL); //Unblocking
wait(&status);
}
}
else
{
int i=0;
token = strtok(cmdline,">");
token = strtok(cmdline,"<");
token = strtok(cmdline," \t\n");
if(token==NULL)
{
no_of_commands=-1;
}
while(token != NULL)
{
savedTokens[i]=token;
i++;
token = strtok (NULL, " \t\n");
}
if(i!=0)
{
no_of_tokens=i-1;
cmd=savedTokens[0];
}
else
{
no_of_tokens=0;
cmd=NULL;
}
int len=0;
if(savedTokens[no_of_tokens]!=NULL)
{
len=strlen(savedTokens[no_of_tokens]);
}
//savedTokens[no_of_tokens][len-1]=0; //Last token gets an extra \n .. therefore removed here.
//if ((cmd!=NULL) && ((strcmp("exit",cmd)==0) || (strcmp("Exit",cmd)==0) || (strcmp("exit ",cmd)==0) || (strcmp("Exit ",cmd)==0)))
if ((cmd!=NULL) && ((strcmp("quit",cmd)==0) || (strcmp("quit ",cmd)==0) || (strcmp(" quit",cmd)==0)))
{
//exit(1);
exit_flag=1;
break;
}
/*int j=0;
while(j<=no_of_tokens)
{
printf("TOKEN %d: %s\n",j,savedTokens[j]);
j++;
} */
//record command in history list (GNU readline history ?)
int std_out;
if(no_of_commands!=-1)
{
if ( (cmd!=NULL) && isBuiltInCommand(cmd)==1 )
{
if(redirectFlag!=0)
{
executeRedirect(cmd,com,redirectFlag);
}
if(outfile!=0)
{
int fd1;
if(outfile==1)
{
fd1=open(output,O_CREAT|O_RDWR|O_TRUNC,00666);
lseek(fd1, 0, SEEK_SET);
}
else if(outfile==2)
{
fd1=open(output,O_APPEND|O_CREAT|O_RDWR,00666);
}
if(fd1==-1)
{
fprintf(stderr, "Can't open file %s for output!\n",output);
memset(output, 0, 10);
outfile=0;
continue;
}
std_out=dup(1);
dup2(fd1,STDOUT_FILENO);
close(fd1);
memset(output, 0, 10);
outfile=0;
}
if(infile==3)
{
int fd2;
fd2=open(inputfile,O_RDWR,00666);
if(fd2==-1)
{
fprintf(stderr, "Can't open file for input! 4\n");
memset(inputfile, 0, 10);
infile=0;
continue;
}
dup2(fd2,STDIN_FILENO);
close(fd2);
memset(inputfile, 0, 10);
infile=0;
}
job_no++;
addJob(0,cmd,0,job_no);
executeBuiltInCommand(cmd,savedTokens,no_of_tokens,homedir);
dup2(std_out,1);
}
else
{
if((com!=NULL) && isBackgroundJob(com)==1)
{
savedTokens[no_of_tokens]=NULL;
}
int status;
childPid = fork();
switch (childPid)
{
case 0: //Child Process
//setpgid(0,0); //make the current process the group leader
//tcsetpgrp(0,getpid());
if(redirectFlag!=0)
{
executeRedirect(cmd,com,redirectFlag);
}
if(outfile!=0)
{
int fd1;
if(outfile==1)
{
fd1=open(output,O_CREAT|O_RDWR|O_TRUNC,00666);
lseek(fd1, 0, SEEK_SET);
}
else if(outfile==2)
{
fd1=open(output,O_APPEND|O_CREAT|O_RDWR,00666);
}
if(fd1==-1)
{
fprintf(stderr, "Can't open file for output 6!\n");
memset(output, 0, 10);
outfile=0;
continue;
}
dup2(fd1,STDOUT_FILENO);
close(fd1);
memset(output, 0, 10);
outfile=0;
}
if(infile==3)
{
int fd2;
printf("%s\n",inputfile);
fd2=open(inputfile,O_RDWR,00666);
if(fd2==-1)
{
fprintf(stderr, "Can't open file for input! 5\n");
memset(inputfile, 0, 10);
infile=0;
continue;
}
dup2(fd2,STDIN_FILENO);
close(fd2);
memset(inputfile, 0, 10);
infile=0;
}
executeCommand(cmd,savedTokens,no_of_tokens); //calls execvp
/* if exec returns there was an error. */
perror(savedTokens[0]);
exit(-1);
case -1:
perror("Fork");
return -1;
default: //In Parent
sigprocmask(SIG_SETMASK, &prevmask, NULL); //Unblocking
//handler(childPid,cmd,job_no,jobs); //Check if any of the childs exited
if (isBackgroundJob(com)==1)
{
setpgid(childPid,childPid); //added the background process to its own group
//tcsetpgrp(0,childPid);
savedTokens[no_of_tokens]=NULL;
// add pid to some list to track jobs
job_no++;
printf("[%d][proc %d started]\n",job_no, childPid);
addJob(childPid,cmd,1,job_no);
// sigprocmask(SIG_SETMASK, &prevmask, NULL); //Unblocking
}
else
{
//Add foreground jobs to list:
job_no++;
//printf("Parent: Here total jobs are %d \n",job_no );
addJob(childPid,cmd,0,job_no);
curpid=childPid;
// printf("jobs[%d]->cmd: %s\n",job_no,jobs[job_no]->cmd);
sigprocmask(SIG_SETMASK, &prevmask, NULL); //Unblocking
pid_t wpid;
do
{
wpid = waitpid(childPid, &status, WUNTRACED); //WUNTRACED->status of child processes will be reported here!
} while (!WIFEXITED(status) && !WIFSIGNALED(status)); //WIFEXITED reports normal termination and //WIFSIGNALED not 0 status if child process stopped but wasnt caught!
removeJob(wpid);
curpid=getpid();
//printf("I am removing the fg job with pid %d\n",wpid );
//waitpid (childPid);
//printf("HERE! 2\n" );
}
}
}
}
}
}//end of k loop
if(exit_flag==1)
break;
//free(line); //
} //End of while loop
return 0;
}
