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  1. #include <stdio.h>
  2. #include <stdlib.h> //For exit()
  3. #include <sys/stat.h> //I/O
  4. #include <ctype.h>
  5. #include <fcntl.h>
  6. #include <unistd.h>
  7.  
  8. //Function Protos
  9. static void usage(void);
  10. void Output(int, char);
  11. int CreateFile(char *MyFile);
  12. int CreateFolder(char *MyFolder);
  13.  
  14. int main(int argc, char *argv[]){
  15. 	    	int file;
  16. 	    	char character;
  17. 		int mFlag = 0;
  18. 		int fFlag = 0;
  19. 		int c;
  20.  
  21. 	    	//Check if arguments are correct
  22. 	    	if(argc == 0){
  23. 	            usage();
  24. 	            exit(0);
  25. 	    	}
  26.  
  27. 	    	if (argc !=2){
  28. 	            usage();
  29. 	            exit(0);
  30. 	    	}
  31.  
  32. 		//Check if file exists OR if its a dir		
  33. 		if(access(argv[1], F_OK) != -1){
  34. 	    		//Check if its a dir
  35. 			struct stat s;
  36. 			int err = stat(argv[1], &s);
  37. 			if ( S_ISDIR(s.st_mode)){
  38. 				printf("%s: Is a directory\n", argv[1]);
  39. 				exit(0); //Exit, we can't do anything witha  dir
  40. 			}
  41.  
  42. 			//Open file
  43. 	    		file = open(argv[1], O_RDONLY);
  44. 	    		if (file == -1)
  45. 				perror("Open() Error");
  46. 	        }
  47. 		else{
  48. 			perror("Error");
  49. 			exit(-1);
  50. 		}
  51.  
  52.  
  53. 		//Command line arg
  54. 		while((c = getopt (argc, argv, "mf")) != -1){
  55.     			switch(c)
  56.     			{
  57.         		case 'm':
  58.             			mFlag = 1;
  59.             			printf("!M\n");
  60.             			if(CreateFile(argv[2]) != 0){
  61. 					perror("Error");
  62. 					exit(-1);
  63. 				}
  64.             			exit(0);
  65.             			break;
  66.  
  67. 			case 'f':
  68.             			printf("!F\n");
  69.            	 		fFlag = 1;
  70.             			CreateFolder(argv[2]);
  71.             			exit(0);
  72.             			break;
  73.  
  74. 			case '?':
  75.             			if (isprint (optopt))
  76.                 			fprintf (stderr, "Unknown option '-%c'\n", optopt);
  77.             			else
  78.                 			fprintf(stderr, "Unknown option character '\\x%x'\n", optopt);
  79.             			return 1;
  80.             			break;
  81.  
  82. 			default:
  83.             			abort ();
  84.     }
  85. }
  86.  
  87.  
  88. 	   	 //Output file
  89. 	    	Output(file, character);
  90.  
  91. 	    	//Close
  92. 	    	if (close(file) != 0){
  93. 			perror("Close() Error");
  94. 			exit(-1);
  95. 		}
  96.  
  97. 		return 0;
  98. }
  99.  
  100. static void usage(){
  101. 	printf ("Usage: op [File] [Option]\n");
  102. 	printf ("-m	Create the file\n");
  103. 	printf ("-f 	Create the folder\n");
  104. }
  105. void Output(int MyFile, char MyChar){
  106. 	while (read (MyFile, &MyChar, 1) == 1)
  107. 		printf("%c", MyChar);
  108. }
  109. int CreateFile(char *MyFile){
  110.     printf("Creating File");
  111.     if(open(MyFile, O_RDWR | O_CREAT, S_IRUSR | S_IRGRP | S_IROTH) == -1){
  112.         printf("Error: Could not creat file\n");
  113.         exit(-1);
  114.     }
  115. 	return 0;
  116. }
  117. int CreateFolder(char *MyFolder){
  118. //Code
  119. return 0;
  120. }
Success #stdin #stdout 0s 2052KB
comments (?)
stdin 
-m file
stdout 
Usage: op [File] [Option]
-m	Create the file
-f 	Create the folder
https://ideone.com/LosiGh
language:
C (gcc 8.3)
created:
11 years ago
visibility:
secret

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