1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
#include <accman.h>
#include <string.h>
#include <encrypt.h>
#include <unistd.h>
#include <encrypt.h>
#include <stdint.h>
#include <ctype.h>
#include <db.h>
char *get_name(void)
{
char name[32];
char *usr_n;
int got = scanf("%s", name);
if(got != 1) {
fprintf(stderr, "failed to read name...\n");
exit(EXIT_FAILURE);
}
usr_n = (char *) malloc(sizeof(name) + DIM_MDOM + 1);
if (!usr_n) {
printf("No free memory available\n");
exit(EXIT_FAILURE);
}
strcpy(usr_n, name);
strcat(usr_n, MDOMAIN);
return usr_n;
}
uint8_t confirm(struct user u)
{
int i;
char choice[32];
ssize_t len;
printf("Do you want to insert new user '%s'? [Y/n] \n", u.n);
len = read(0, choice, 32);
choice[len-1] = '\0';
for (i = 0; i < strlen(choice); i++)
choice[i] = toupper(choice[i]);
return (!strcmp(choice, "Y") || !strcmp(choice, "YES") ||
!strcmp(choice, "")) ? 1 : 0;
}
char *get_password(void)
{
char *p, *tmp;
size_t len;
tmp = getpass("Password: ");
len = strlen(tmp);
if ((len < MIN_PASSWD_LEN) || (len > MAX_PASSWD_LEN)) {
fprintf(stderr,
"Password must be between %d and %d characters\n",
MIN_PASSWD_LEN, MAX_PASSWD_LEN);
memset(tmp, 0, len);
exit(EXIT_FAILURE);
}
p = (char*) malloc (len + 1);
strcpy(p, tmp);
/* clear password from memory */
memset(tmp, 0, len);
tmp = getpass("Re-type password: ");
int scmp = strcmp(p, tmp);
memset(tmp, 0, len);
if (scmp) {
fprintf(stderr,
"The passwords don't match, operation aborted\n");
/* clear passwd */
memset(p, 0, len);
exit(EXIT_FAILURE);
}
tmp = get_crypt_sha256(p);
memset(p, 0, len);
free(p);
return tmp;
}
int main (void)
{
struct user usr;
printf("Insert user name (user@etezian.org): ");
usr.n = get_name();
usr.p = get_password();
if (confirm(usr)) {
db_insert_user(usr);
printf("User %s inserted correctly\n", usr.n);
} else {
printf("user insertion aborted\n");
}
return 0;
}
|