C++ (Cpp) fillArgv Examples

Example #1

File: myShell.c Project: gnishant01/myShell

int main(int argc, char *argv[], char *envp[]){
	char c;
	int i, fd;
	char *tmp = (char *)malloc(sizeof(char) * 100);
	char *pathString = (char *)malloc(sizeof(char) * 256);
	char *cmd = (char *)malloc(sizeof(char) * 100);
	
	signal(SIGINT, handleSignal);

	copyEnvp(envp);
	getPath(myEnvParams, pathString);
	insertPath(pathString);

	if(fork() == 0){
		execve("/usr/bin/clear", argv, myEnvParams);
		exit(1);
	}
	else{
		wait(NULL);
	}
	// printPrompt(); /* uncomment this line and comment the next line to change the prompt to '<userName>@<hostName>@myShell:' */
	printf("[myShell]: ");
	fflush(stdout);
	while(c != EOF){
		c = getchar();
		switch(c){
		case '\n':
			if(tmp[0] == '\0'){
				// printPrompt(); /* uncomment this line and comment the next line to change the prompt to '<userName>@<hostName>@myShell:' */
				printf("[myShell]: ");
			}
			else{
				fillArgv(tmp);
				strcpy(cmd, myArguments[0]);

				strcat(cmd, "\0");
				if(index(cmd, '/') == NULL){
					if(attachPath(cmd) == 0){
						executeCommand(cmd);
					}
					else{
						printf("%s: command not found\n", cmd);
					}
				}
				else{
					if((fd = open(cmd, O_RDONLY)) > 0){
						close(fd);
						executeCommand(cmd);
					}
					else{
						printf("%s: command not found\n", cmd);
					}
				}
				freeMemory();
				// printPrompt(); /* uncomment this line and comment the next line to change the prompt to '<userName>@<hostName>@myShell:' */
				printf("[myShell]: ");
				memset(cmd, '\0', 100);
			}
			memset(tmp, '\0', 100);
			break;
		default:
			strncat(tmp, &c, 1);
			break;
		}
	}
	free(tmp);
	free(pathString);
	for(i = 0; myEnvParams[i] != NULL; i++) free(myEnvParams[i]);
	for(i = 0; i < 10; i++) free(searchPath[i]);
	printf("\n");
	return 0;
}

Example #2

File: main.c Project: NurKaynar/hacklab

int 
main(int argc, char *argv[], char *envp[])
{
  char *line;

  int returnValue;

	int i, fd;

	char *pathString = (char *)malloc(sizeof(char) * 256);
	char *cmd = (char *)malloc(sizeof(char) * 256);

  bzero(pathString, 256);
  bzero(cmd, 256);

  /* Manage Signals */
  signal(SIGINT, SIG_IGN);	
  signal(SIGQUIT,SIG_IGN);
//  signal(SIGCHLD,SIG_IGN);
  signal(SIGKILL,SIG_IGN);
  signal(SIGTERM,SIG_IGN);

	signal(SIGINT, handleSignal);

  /* Extract the PATH= var from envp */
	getPathString(envp, pathString);
  /* Insert each path to be searched into searchPath[][] */
  insertPathStringToSearch(searchPath, pathString);

  /* Print about Slash */
  clrScreen(argv, envp);
  printf("%s", aboutSlash);
  printf("PID=%d\n", getpid());

#if SLASH_DEBUG
  for(i=0; envp[i] != NULL; i++)
    printf("%s\n", envp[i]);
#endif

  /* Bind our completer + History Feature */
  initialize_readline();

  while(1)
  {
    line = readline ("\x1b[96m<$lash/>\x1b[00m "); /* Print in Red! */

    #if SLASH_DEBUG
      printf("Input: %s\n", line);
    #endif

    if(*line)
    {
      add_history (line);
      returnValue = execute_line (line);

      if(returnValue == CMD_EXIT)
        break;

      if(returnValue == CMD_UNKNOWN)
      {
        #if SLASH_DEBUG
          printf("CMD_UNKNOWN: %s\n", line);
        #endif
        /* Extract args to command into slashArgv[][] */
        nullifyArgv(slashArgv);
        fillArgv(line, slashArgv);
        bzero(cmd, 256);
				strncpy(cmd, slashArgv[0], strlen(slashArgv[0]));
				strncat(cmd, "\0", 1);

        #if SLASH_DEBUG
          printf("arg[0]: %s\n", slashArgv[0]);
          printf("cmd: %s\n", cmd);
        #endif

				if(index(cmd, '/') == NULL) 
        {
				  if(attachPath(cmd, searchPath) == 0) 
          {
					  callFork(cmd, slashArgv, envp);
					} 
          else 
					  printf("%s: command not found\n", cmd);
        } 
        else 
        {
				  if((fd = open(cmd, O_RDONLY)) > 0) 
          {
					  close(fd);
						callFork(cmd, slashArgv, envp);
					} 
          else 
					  printf("%s: command not found\n", cmd);
			  }
        freeArgv(slashArgv);
      }
    }

    if(line != NULL)
    free(line);
	  fflush(stdout);
  }

  free(cmd);
	free(pathString);
	for(i=0;i<50;i++)
		free(searchPath[i]);
	return 0;
}