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
|
/*
* Lookup a group by name
*/
#include <stdio.h>
#include <grp.h>
#include <sys/types.h>
int main(int argc, char **argv)
{
struct group *gr;
/* Check args */
if (argc != 2) {
printf("ERROR: no arg specified\n");
exit(1);
}
/* Do getgrnam() */
if ((gr = getgrnam(argv[1])) == NULL) {
printf("FAIL: group %s does not exist\n", argv[1]);
exit(1);
}
/* Print group info */
printf("PASS: group %s exists\n", argv[1]);
printf("gr_name = %s\n", gr->gr_name);
printf("gr_passwd = %s\n", gr->gr_passwd);
printf("gr_gid = %d\n", gr->gr_gid);
/* Group membership */
if (gr->gr_mem != NULL) {
int i = 0;
printf("gr_mem = ");
while(gr->gr_mem[i] != NULL) {
printf("%s", gr->gr_mem[i]);
i++;
if (gr->gr_mem != NULL) {
printf(",");
}
}
printf("\n");
}
exit(0);
}
|
