#include <sys/types.h>
#include <grp.h>
struct group *getgrent(void);
void endgrent(void);
struct group {
char *gr_name; /* 组名 */
char *gr_passwd; /* 组密码 */
gid_t gr_gid; /* GID */
char **gr_mem; /* 组成员 */
};
#include <stdio.h>
#include <sys/types.h>
#include <grp.h>
int main()
{
struct group *gdata;
int i;
while ((gdata = getgrent())) {
i = 0;
printf ("%s:%s:%d\n", gdata->gr_name, gdata->gr_passwd, gdata->gr_gid);
while(gdata->gr_mem)
printf ("%s,", gdata->gr_mem[i++]);
}
endgrent();
return 0;
}
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