1/* create.c (GPL)*/
2/* Hironobu SUZUKI <hironobu@h2np.net> */
3#include <stdio.h>
4#include <sys/stat.h>
5#include <sys/types.h>
6#include <fcntl.h>
7#include <unistd.h>
8#include <time.h>
9#include <stdlib.h>
10
11#define MAXN 4096
12
13#define MAXFSIZE 1024 * 192
14
15char wbuf[MAXFSIZE];
16static int filecount = 0;
17
18void makedir(char *dir1);
19void changedir(char *dir);
20void create_file(char *filename);
21
22extern int box_muler(int, int);
23
24int startc = 0;
25int main(int ac, char *av[])
26{
27	int i = 0;
28	int j = 0;
29	int k = 0;
30	int l = 0;
31	char dir1[MAXN];
32	char dir2[MAXN];
33	char dir3[MAXN];
34	char filename[MAXN];
35	time_t t;
36	int maxfiles = 0xFFFFFF;
37	int createfiles = 0;
38
39	if (ac > 1) {
40		sscanf(av[1], "%x", &maxfiles);
41		if (maxfiles == 0) {
42			printf("maxfile argument error (0 value)\n");
43			exit(1);
44		}
45	}
46	time(&t);
47	srandom((unsigned int)getpid() ^
48		(((unsigned int)t << 16) | (unsigned int)t >> 16));
49	printf("Create files\n");
50	for (i = 0; i < 0xFF; i++) {
51		sprintf(dir1, "%2.2x", i);
52		makedir(dir1);
53		changedir(dir1);
54		for (j = 0; j < 0xFF; j++) {
55			sprintf(dir2, "%2.2x", j);
56			makedir(dir2);
57			changedir(dir2);
58			for (k = 0; k < 0xFF; k++) {
59				sprintf(dir3, "%2.2x", k);
60				makedir(dir3);
61				changedir(dir3);
62				for (l = 0; l < 0xFF; l++) {
63					sprintf(filename, "%s%s%s%2.2x", dir1,
64						dir2, dir3, l);
65					create_file(filename);
66					if (maxfiles < createfiles++) {
67						goto end;
68					}
69				}
70				changedir("../");
71			}
72			changedir("../");
73		}
74		changedir("../");
75	}
76end:
77	fprintf(stderr, "\nTotal create files: %d\n", filecount);
78	printf("Done\n");
79	return 0;
80}
81
82int showchar[] = { 124, 47, 45, 92, 124, 47, 45, 92 };
83
84void makedir(char *dir1)
85{
86	if (mkdir(dir1, S_IRWXU) < 0) {
87		perror(dir1);
88		exit(1);
89	}
90}
91
92void changedir(char *dir)
93{
94	if (chdir(dir) < 0) {
95		perror(dir);
96		exit(1);
97	}
98}
99
100void create_file(char *filename)
101{
102	int fd;
103	int randomsize;
104	if ((fd = creat(filename, S_IRWXU)) < 0) {
105		fprintf(stderr, "\nTotal create files: %d\n", filecount);
106		perror(filename);
107		exit(1);
108	}
109	if ((randomsize = box_muler(0, MAXFSIZE)) < 0) {
110		randomsize = MAXFSIZE;
111	}
112	if (write(fd, wbuf, randomsize) < 0) {
113		fprintf(stderr, "\nTotal create files: %d\n", filecount);
114		perror(filename);
115		exit(1);
116	}
117	filecount++;
118	close(fd);
119}
120