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; }