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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("-L | contact-id ...");
struct group_node {
char *name;
struct group_node *next;
struct group_node *prev;
};
static struct group_node head;
static struct group_node tail;
static void
list_groups(const struct libcontacts_contact *contact)
{
char **groups, *group;
struct group_node *node, *new;
int cmp;
if ((groups = contact->groups)) {
for (; (group = *groups); groups++) {
for (node = head.next; node->next; node = node->next) {
cmp = strcmp(group, node->name);
if (cmp < 0)
continue;
if (cmp == 0)
goto next_group;
break;
}
printf("%s\n", group);
new = ecalloc(1, sizeof(*new));
(new->prev = node->prev)->next = new;
(new->next = node)->prev = new;
new->name = estrdup(group);
next_group:;
}
}
}
int
main(int argc, char *argv[])
{
int list = 0;
struct passwd *user;
struct libcontacts_contact **contacts, contact;
struct group_node *node, *next_node;
int ret = 0;
size_t i;
ARGBEGIN {
case 'L':
list = 1;
break;
default:
usage();
} ARGEND;
if (list ? argc : !argc)
usage();
head.prev = NULL;
head.next = &tail;
tail.prev = &head;
tail.next = NULL;
errno = 0;
user = getpwuid(getuid());
if (!user)
eprintf("getpwuid: %s\n", errno ? strerror(errno) : "user does not exist");
if (list) {
if (libcontacts_load_contacts(&contacts, user))
eprintf("libcontacts_load_contacts:");
for (i = 0; contacts[i]; i++) {
list_groups(contacts[i]);
libcontacts_contact_destroy(contacts[i]);
free(contacts[i]);
}
free(contacts);
} else {
for (; *argv; argv++) {
if (libcontacts_load_contact(*argv, &contact, user)) {
weprintf("libcontacts_load_contact %s: %s\n", *argv,
errno ? strerror(errno) : "contact file is malformatted");
ret = 1;
} else {
list_groups(&contact);
libcontacts_contact_destroy(&contact);
}
}
}
if (fflush(stdout) || ferror(stdout) || fclose(stdout))
eprintf("printf:");
for (node = head.next; node->next; node = next_node) {
next_node = node->next;
free(node->name);
free(node);
}
return ret;
}
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