int main(int argc, char **argv)
{
if (argc != 3)
{
printf("Usage: %s <input> <output>\n", argv[0]);
exit(EXIT_FAILURE);
}
// Initialize alias list
initAlias();
// Parse the input ISA file and write to output
parseFile(argv[1], argv[2]);
// Free alias list
clearAlias();
exit(EXIT_SUCCESS);
}
int main(int argc , char *argv[])
{
int socket_desc;
char* ip;
int port;
struct sockaddr_in server;
initAlias();
// showAlias();
if(argc == 1)
{
puts("Use default ip: localhost, port: 8888");
ip = "127.0.0.1";
port = 8888;
}
else
{
if(!strcmp(argv[1], "localhost"))
ip = "127.0.0.1";
else
ip = argv[1];
if(argc==2)
{
puts("Use default port: 8888");
port = 8888;
}
else
port = atoi(argv[2]);
}
// Create socket
socket_desc = socket(AF_INET , SOCK_STREAM , 0);
if (socket_desc == -1)
{
printf("Could not create socket");
}
server.sin_addr.s_addr = inet_addr( ip );
server.sin_family = AF_INET;
server.sin_port = htons( port );
// Connect to remote server
if (connect(socket_desc , (struct sockaddr *)&server , sizeof(server)) < 0)
{
puts("connect error");
return 1;
}
puts("Connected");
/* init threads shared variable */
trans_state = TRANSFER_WAIT;
mode = MESSAGE_MODE;
pthread_t rthread;
pthread_t wthread;
int* rparam_desc = malloc(sizeof(int));
*rparam_desc = socket_desc;
int* wparam_desc = malloc(sizeof(int));
*wparam_desc = socket_desc;
if(pthread_create( &rthread, NULL, receive_handler, (void*)rparam_desc) < 0)
{
perror("Fail to create recv pthread");
return RECV_PTHREAD_FAIL;
}
if(pthread_create( &wthread, NULL, write_handler, (void*)wparam_desc) < 0)
{
perror("Fail to create send pthread");
return SEND_PTHREAD_FAIL;
}
/* Terminate the program if recv() detect disconnection */
// pthread_join(wthread, NULL);
pthread_join(rthread, NULL);
close(socket_desc);
return 0;
}
int main(int argc, char * argv[], char **envp)
{
//The following two functions catch and process the interrupt and stop signals
//AKA signals sent by the Ctrl-C and Ctrl-Z commands
if (signal(SIGINT,signal_catcher)==SIG_ERR)
{
perror("Sigset cannot set SIGINT");
exit(SIGINT);
}
if (signal(SIGTSTP, signal_catcher)==SIG_ERR)
{
perror("Sigset can not set SIGTSTP");
exit(SIGTSTP);
}
//Declaring and initializing variables to be used later
initHistory();
initAlias();
int this_input = 0;
char * input = (char *) malloc(sizeof(char)*64);
strcpy (input, "noexit");
char *shellname = (char *) malloc(sizeof(char)*32);
strcpy (shellname, "myshell");
setShellName(shellname);
printf ("[%s]%% ", shellname);
input = getLine(input, 100);
//Making sure the program does not crash if the input simply the return key
while (strcmp(input,"\0") == 0)
{
printf ("[%s]%% ", shellname);
input = getLine(input, 100);
}
setHistory(input);
breakLine (input);
this_input = whichInput();
char ** argrv = getargrv();
int argrc = getargrc();
int loop = 1;
while (loop != 0)
{
//Loop and process commands until the exist command is entered
if(this_input==4) {
if(strcmp(argrv[argrc-1], "&")==0)
{
//printf("Before forking PID:%d\n", getpid());
int pid = fork();
if(pid==0)
{
//sleep(2); //putting a delay in to emphasize background process
//printf("\nchild PID: %d\n", getpid());
decrargrc();
list();
//printf("\nIn the child process - ended.\n\n");
return 0;
} else
{
//printf("PPID:%d\n", getpid());
//printf("In the parent process.\n");
printf("%s process running in background", argrv[0]);
}
} else
list();
} else if(this_input==3) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
decrargrc();
pwd();
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
pwd();
} else if(this_input==6) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
decrargrc();
prompt();
shellname = getShellName();
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
{
prompt();
shellname = getShellName();
}
} else if(this_input==2) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
decrargrc();
dirChange();
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
dirChange();
} else if(this_input==5) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
decrargrc();
mypid();
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
mypid();
} else if(this_input==1) {
if (getargrc() == 1)
{
loop = 0;
free (input);
free (shellname);
input = NULL;
shellname = NULL;
freeDynamicMem();
return 0;
} else {
printf("%s: Arguments not valid.", argrv[0]);
}
} else if(this_input==7) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
decrargrc();
printHistory();
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
printHistory();
} else if(this_input==8) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
printf("\n***I've put a 3 second delay in to emphasize this background process\n");
sleep(3); //putting a delay in to emphasize background proces
decrargrc();
printEnv(envp);
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
printEnv(envp);
}else if(this_input==9) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
decrargrc();
alias();
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
alias();
}else if(this_input==10) {
if(strcmp(argrv[argrc-1], "&")==0)
{
int pid = fork();
if(pid==0)
{
decrargrc();
murder();
return 0;
} else
printf("%s process running in background", argrv[0]);
} else
murder();
}else {
nocmd(input);
}
printf ("\n[%s]%% ", shellname);
input = getLine(input, 100);
while (strcmp(input,"\0") == 0)
{
printf ("[%s]%% ", shellname);
input = getLine(input, 100);
}
setHistory(input);
breakLine (input);
this_input = whichInput();
argrv = getargrv();
argrc = getargrc();
}
return 0;
}
