-/*
- * lookup user in user list file. Fills in a user struct containing
- * filename of the user's public key as well as the permissions of that user.
- * Returns 1 on success, 0 if user does not exist and < 0 on errors.
- */
-static void populate_user_list(void) {
- FILE *file_ptr = NULL;
- char *char_ptr;
- char line[MAXLINE];
- /* keyword, user, key, perms */
- char w[MAXLINE], n[MAXLINE], k[MAXLINE], p[MAXLINE], tmp[4][MAXLINE];
- int num, ret;
-
- file_ptr = fopen(user_list_file, "r");
- ret = -E_USERLIST;
- if (!file_ptr)
- goto out;
- for (;;) {
- struct user *u;
- ret = para_fgets(line, MAXLINE, file_ptr);
- if (ret < 0)
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
- if (ret <= 0)
- break;
- if (sscanf(line,"%200s %200s %200s %200s", w, n, k, p) < 3)
- continue;
- if (strcmp(w, "user"))
- continue;
- PARA_DEBUG_LOG("found entry for %s\n", n);
- u = para_malloc(sizeof(struct user));
- u->name = para_strdup(n);
- u->rsa = para_malloc(sizeof(RSA));
- ret = get_rsa_key(k, &u->rsa, LOAD_PUBLIC_KEY);
- if (ret < 0)
- break;
- u->perms = 0;
- char_ptr = p;
- num = sscanf(char_ptr, "%200[A-Z_],%200[A-Z_],%200[A-Z_],%200[A-Z_]",
- tmp[0], tmp[1], tmp[2], tmp[3]);
- PARA_DEBUG_LOG("found %i perm entries\n", num);
- u->perms = 0;
- while (num > 0) {
- num--;
- if (!strcmp(tmp[num], "AFS_READ"))
- u->perms |= AFS_READ;
- else if (!strcmp(tmp[num], "AFS_WRITE"))
- u->perms |= AFS_WRITE;
- else if (!strcmp(tmp[num], "DB_READ"))
- u->perms |= DB_READ;
- else if (!strcmp(tmp[num], "DB_WRITE"))
- u->perms |= DB_WRITE;
- else /* unknown permission */
- PARA_WARNING_LOG("unknown permission: %s\n",
- tmp[num]);
- }
- para_list_add(&u->node, &user_list);
- }
-out:
- if (file_ptr)
- fclose(file_ptr);
- if (ret >= 0)
- return;
- PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret));
- exit(EXIT_FAILURE);
-}
-
-static void init_user_list(void)
-{
- struct user *u, *tmp;
- static int initialized;
-
- if (initialized) {
- list_for_each_entry_safe(u, tmp, &user_list, node) {
- list_del(&u->node);
- free(u->name);
- free(u->rsa);
- free(u);
- }
- } else
- INIT_LIST_HEAD(&user_list);
- initialized = 1;
- populate_user_list();
-}
-
-/**
- * lookup user in user_list.
- *
- * \param user: must initially contain the name of the user and is filled
- * in by this function on success.
- *
- * \return 1 on success and < 0 on errors.
- */
-int get_user(struct user *user)
-{
- struct user *u;
- list_for_each_entry(u, &user_list, node) {
- if (strcmp(u->name, user->name))
- continue;
- *user = *u;
- return 1;
- }
- return -E_BAD_USER;
-}
-