コード例 #1
0
int main(int argc, char **argv)
{
	uid_t uid;
	DIR *dirp;
	struct dirent *directory_entry;
	char dirname[256];

	/* validate the input and map name to uid */
	if (argc != 2) {
		print_usage(argc, argv);
		return 1;
	}
	uid = user_id_from_name(argv[1]);
	if (uid == -1) {
		printf("Invalid username specified (not found)\n");
		return 1;
	}

	/* now, walk directories in /proc fs */
	if ((dirp = opendir(PROCFS_ROOT)) == NULL) {
		perror("Unabled to open /proc");
		return 1;
	}
	do {
		if ((directory_entry = readdir(dirp)) != NULL) {
			if (directory_entry->d_type == DT_DIR ||
			    directory_entry->d_type == DT_LNK) {
				strcpy(&dirname[0], PROCFS_ROOT);
				strcat(&dirname[0], "/");
				strcat(&dirname[0], directory_entry->d_name);
				check_dir(&dirname[0], uid);
			}
		}
	} while (directory_entry != NULL);
	return 0;
}
コード例 #2
0
ファイル: ex_17-1.c プロジェクト: twoerner/tlpi
int
main (int argc, char *argv[])
{
	DIR *cwd_p;
	struct dirent *thisDir_p;
	acl_t acl;
	acl_entry_t entry;
	acl_tag_t tag;
	int entryId;
	uid_t *uid_p, cmdlineUid;
	gid_t *gid_p, cmdlineGid;
	UorG_t entryType;

	// cmdline args
	if (argc != 3) {
		usage (argv[0]);
		return 1;
	}
	switch (argv[1][0]) {
		case 'u':
			entryType = USER_e;
			if (!user_id_from_name (argv[2], &cmdlineUid)) {
				fprintf (stderr, "user_id_from_name() failure\n");
				return 1;
			}
			break;

		case 'g':
			entryType = GROUP_e;
			if (!group_id_from_name (argv[2], &cmdlineGid)) {
				fprintf (stderr, "group_id_from_name() failure\n");
				return 1;
			}
			break;

		default:
			usage (argv[0]);
			return 1;
	}

	cwd_p = opendir (".");
	if (cwd_p == NULL) {
		perror ("opendir(.)");
		return 1;
	}

	while ((thisDir_p = readdir (cwd_p)) != NULL) {
		if (thisDir_p->d_type != DT_REG)
			continue;
		acl = acl_get_file (thisDir_p->d_name, ACL_TYPE_ACCESS);
		if (acl == NULL)
			continue;

		for (entryId=ACL_FIRST_ENTRY; ; entryId=ACL_NEXT_ENTRY) {
			if (acl_get_entry (acl, entryId, &entry) == -1)
				break;
			if (acl_get_tag_type (entry, &tag) == -1)
				break;

			if (entryType == USER_e) {
				if (tag == ACL_USER) {
					uid_p = acl_get_qualifier (entry);
					if (uid_p == NULL)
						break;

					if (*uid_p == cmdlineUid)
						printf ("acl user matches: %s\n", thisDir_p->d_name);
					
					acl_free (uid_p);
				}
			}
			else {
				if (tag == ACL_GROUP) {
					gid_p = acl_get_qualifier (entry);
					if (gid_p == NULL)
						break;

					if (*gid_p == cmdlineGid)
						printf ("acl grp  matches: %s\n", thisDir_p->d_name);

					acl_free (gid_p);
				}
			}
		}

		acl_free (acl);
	}

	closedir (cwd_p);

	return 0;
}