+/*
+ * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
+
+/** \file create.c The create mode of adu. */
+
+#include <dirent.h> /* readdir() */
+#include "adu.h"
+#include "gcc-compat.h"
+#include "cmdline.h"
+#include "fd.h"
+#include "string.h"
+#include "error.h"
+#include "portable_io.h"
+
+/* Id of the device containing the base dir. */
+static dev_t device_id;
+
+static int write_uid(struct user_info *ui, void *data)
+{
+ char **p = data;
+
+ write_u32(*p, ui->uid);
+ *p += sizeof(uint32_t);
+ return 1;
+}
+
+static int write_uid_list(void)
+{
+ char *buf, *p, *filename;
+ uint32_t count = 0;
+ struct user_info *ui;
+ size_t size = num_uids * sizeof(uint32_t);
+ int ret;
+
+ if (!num_uids)
+ return 0;
+ buf = p = adu_malloc(size);
+ ret = for_each_admissible_user(write_uid, &p);
+ if (ret < 0)
+ goto out;
+ filename = get_uid_list_name();
+ ret = adu_write_file(filename, buf, size);
+ free(filename);
+out:
+ free(buf);
+ return ret;
+}
+
+static int add_directory(char *dirname, uint64_t *dir_num, uint64_t *parent_dir_num,
+ uint64_t *dir_size, uint64_t *dir_files)
+{
+ struct osl_object dir_objects[NUM_DT_COLUMNS];
+
+ INFO_LOG("adding #%llu: %s\n", (long long unsigned)*dir_num, dirname);
+ dir_objects[DT_NAME].data = dirname;
+ dir_objects[DT_NAME].size = strlen(dirname) + 1;
+ dir_objects[DT_NUM].data = dir_num;
+ dir_objects[DT_NUM].size = sizeof(*dir_num);
+ dir_objects[DT_PARENT_NUM].data = parent_dir_num;
+ dir_objects[DT_PARENT_NUM].size = sizeof(*parent_dir_num);
+ dir_objects[DT_BYTES].data = dir_size;
+ dir_objects[DT_BYTES].size = sizeof(*dir_size);
+ dir_objects[DT_FILES].data = dir_files;
+ dir_objects[DT_FILES].size = sizeof(*dir_files);
+ return osl(osl_add_row(dir_table, dir_objects));
+}
+
+static int update_user_row(struct osl_table *t, uint64_t dir_num,
+ uint64_t *add)
+{
+ struct osl_row *row;
+ struct osl_object obj = {.data = &dir_num, .size = sizeof(dir_num)};
+
+ int ret = osl(osl_get_row(t, UT_DIR_NUM, &obj, &row));
+
+ if (ret == -E_OSL && osl_errno != E_OSL_RB_KEY_NOT_FOUND)
+ return ret;
+ if (ret < 0) { /* this is the first file we add */
+ struct osl_object objects[NUM_UT_COLUMNS];
+ uint64_t num_files = 1;
+
+ objects[UT_DIR_NUM].data = &dir_num;
+ objects[UT_DIR_NUM].size = sizeof(dir_num);
+ objects[UT_BYTES].data = add;
+ objects[UT_BYTES].size = sizeof(*add);
+ objects[UT_FILES].data = &num_files;
+ objects[UT_FILES].size = sizeof(num_files);
+ INFO_LOG("######################### ret: %d\n", ret);
+ ret = osl(osl_add_row(t, objects));
+ INFO_LOG("######################### ret: %d\n", ret);
+ return ret;
+ } else { /* add size and increment file count */
+ uint64_t num;
+ struct osl_object obj1, obj2 = {.data = &num, .size = sizeof(num)};
+
+ ret = osl(osl_get_object(t, row, UT_BYTES, &obj1));
+ if (ret < 0)
+ return ret;
+ num = *(uint64_t *)obj1.data + *add;
+ ret = osl(osl_update_object(t, row, UT_BYTES, &obj2));
+ if (ret < 0)
+ return ret;
+ ret = osl(osl_get_object(t, row, UT_FILES, &obj1));
+ if (ret < 0)
+ return ret;
+ num = *(uint64_t *)obj1.data + 1;
+ return osl(osl_update_object(t, row, UT_FILES, &obj2));
+ }
+}
+
+static int scan_dir(char *dirname, uint64_t *parent_dir_num)
+{
+ DIR *dir;
+ struct dirent *entry;
+ int ret, cwd_fd, ret2;
+ uint64_t dir_size = 0, dir_files = 0;
+ uint64_t this_dir_num = ++num_dirs;
+
+ check_signals();
+ DEBUG_LOG("----------------- %llu: %s\n", (long long unsigned)num_dirs, dirname);
+ ret = adu_opendir(dirname, &dir, &cwd_fd);
+ if (ret < 0) {
+ if (ret != -ERRNO_TO_ERROR(EACCES))
+ return ret;
+ WARNING_LOG("permission denied for %s\n", dirname);
+ return 1;
+ }
+ while ((entry = readdir(dir))) {
+ mode_t m;
+ struct stat s;
+ uint32_t uid;
+ uint64_t size;
+ struct user_info *ui;
+
+ if (!strcmp(entry->d_name, "."))
+ continue;
+ if (!strcmp(entry->d_name, ".."))
+ continue;
+ if (lstat(entry->d_name, &s) == -1) {
+ WARNING_LOG("lstat error for %s/%s\n", dirname,
+ entry->d_name);
+ continue;
+ }
+ m = s.st_mode;
+ if (!S_ISREG(m) && !S_ISDIR(m))
+ continue;
+ if (S_ISDIR(m)) {
+ if (conf.one_file_system_given && s.st_dev != device_id)
+ continue;
+ ret = scan_dir(entry->d_name, &this_dir_num);
+ if (ret < 0)
+ goto out;
+ continue;
+ }
+ /* regular file */
+ size = s.st_size;
+ dir_size += size;
+ num_bytes += size;
+ dir_files++;
+ num_files++;
+ uid = s.st_uid;
+ ret = search_uid(uid, CREATE_USER_TABLE | OPEN_USER_TABLE, &ui);
+ if (ret < 0)
+ goto out;
+ ui->bytes += size;
+ ui->files++;
+ ret = update_user_row(ui->table, this_dir_num, &size);
+ if (ret < 0)
+ goto out;
+ }
+ ret = add_directory(dirname, &this_dir_num, parent_dir_num,
+ &dir_size, &dir_files);
+out:
+ closedir(dir);
+ ret2 = adu_fchdir(cwd_fd);
+ if (ret2 < 0 && ret >= 0)
+ ret = ret2;
+ close(cwd_fd);
+ return ret;
+}
+
+int com_create()
+{
+ uint64_t zero = 0ULL;
+ int ret;
+ struct stat statbuf;
+
+ if (lstat(conf.base_dir_arg, &statbuf) == -1)
+ return -ERRNO_TO_ERROR(errno);
+ if (!S_ISDIR(statbuf.st_mode))
+ return -ERRNO_TO_ERROR(ENOTDIR);
+ device_id = statbuf.st_dev;
+ create_hash_table(conf.hash_table_bits_arg);
+ ret = open_dir_table(1);
+ if (ret < 0)
+ return ret;
+ check_signals();
+ ret = scan_dir(conf.base_dir_arg, &zero);
+ if (ret < 0)
+ goto out;
+ ret = write_uid_list();
+out:
+ close_all_tables();
+ return ret;
+}
projects / adu.git / commitdiff