+
+ /* just in case, to make sure we don't have any references */
+ log_del_target(target);
+
+ if (target->output == &_file_output) {
+/* since C89/C99 says stderr is a macro, we can safely do this! */
+#ifdef stderr
+ /* don't close stderr */
+ if (target->tgt_file.out != stderr)
+#endif
+ {
+ fclose(target->tgt_file.out);
+ target->tgt_file.out = NULL;
+ }
+ }
+
+ talloc_free(target);
+}
+
+/* close and re-open a log file (for log file rotation) */
+int log_target_file_reopen(struct log_target *target)
+{
+ fclose(target->tgt_file.out);
+
+ target->tgt_file.out = fopen(target->tgt_file.fname, "a");
+ if (!target->tgt_file.out)
+ return -errno;
+
+ /* we assume target->output already to be set */
+
+ return 0;
+}
+
+/* This generates the logging command string for VTY. */
+const char *log_vty_command_string(const struct log_info *unused_info)
+{
+ struct log_info *info = osmo_log_info;
+ int len = 0, offset = 0, ret, i, rem;
+ int size = strlen("logging level () ()") + 1;
+ char *str;
+
+ for (i = 0; i < info->num_cat; i++) {
+ if (info->cat[i].name == NULL)
+ continue;
+ size += strlen(info->cat[i].name) + 1;
+ }
+
+ for (i = 0; i < LOGLEVEL_DEFS; i++)
+ size += strlen(loglevel_strs[i].str) + 1;
+
+ rem = size;
+ str = talloc_zero_size(tall_log_ctx, size);
+ if (!str)
+ return NULL;
+
+ ret = snprintf(str + offset, rem, "logging level (all|");
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+
+ for (i = 0; i < info->num_cat; i++) {
+ if (info->cat[i].name) {
+ int j, name_len = strlen(info->cat[i].name)+1;
+ char name[name_len];
+
+ for (j = 0; j < name_len; j++)
+ name[j] = tolower(info->cat[i].name[j]);
+
+ name[name_len-1] = '\0';
+ ret = snprintf(str + offset, rem, "%s|", name+1);
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+ }
+ }
+ offset--; /* to remove the trailing | */
+ rem++;
+
+ ret = snprintf(str + offset, rem, ") (");
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+
+ for (i = 0; i < LOGLEVEL_DEFS; i++) {
+ int j, loglevel_str_len = strlen(loglevel_strs[i].str)+1;
+ char loglevel_str[loglevel_str_len];
+
+ for (j = 0; j < loglevel_str_len; j++)
+ loglevel_str[j] = tolower(loglevel_strs[i].str[j]);
+
+ loglevel_str[loglevel_str_len-1] = '\0';
+ ret = snprintf(str + offset, rem, "%s|", loglevel_str);
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+ }
+ offset--; /* to remove the trailing | */
+ rem++;
+
+ ret = snprintf(str + offset, rem, ")");
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+err:
+ str[size-1] = '\0';
+ return str;
+}
+
+/* This generates the logging command description for VTY. */
+const char *log_vty_command_description(const struct log_info *unused_info)
+{
+ struct log_info *info = osmo_log_info;
+ char *str;
+ int i, ret, len = 0, offset = 0, rem;
+ unsigned int size =
+ strlen(LOGGING_STR
+ "Set the log level for a specified category\n") + 1;
+
+ for (i = 0; i < info->num_cat; i++) {
+ if (info->cat[i].name == NULL)
+ continue;
+ size += strlen(info->cat[i].description) + 1;
+ }
+
+ for (i = 0; i < LOGLEVEL_DEFS; i++)
+ size += strlen(loglevel_descriptions[i]) + 1;
+
+ size += strlen("Global setting for all subsystems") + 1;
+ rem = size;
+ str = talloc_zero_size(tall_log_ctx, size);
+ if (!str)
+ return NULL;
+
+ ret = snprintf(str + offset, rem, LOGGING_STR
+ "Set the log level for a specified category\n");
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+
+ ret = snprintf(str + offset, rem,
+ "Global setting for all subsystems\n");
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+
+ for (i = 0; i < info->num_cat; i++) {
+ if (info->cat[i].name == NULL)
+ continue;
+ ret = snprintf(str + offset, rem, "%s\n",
+ info->cat[i].description);
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+ }
+ for (i = 0; i < LOGLEVEL_DEFS; i++) {
+ ret = snprintf(str + offset, rem, "%s\n",
+ loglevel_descriptions[i]);
+ if (ret < 0)
+ goto err;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+ }
+err:
+ str[size-1] = '\0';
+ return str;
+}
+
+int log_init(const struct log_info *inf, void *ctx)
+{
+ int i;
+
+ tall_log_ctx = talloc_named_const(ctx, 1, "logging");
+ if (!tall_log_ctx)
+ return -ENOMEM;
+
+ osmo_log_info = talloc_zero(tall_log_ctx, struct log_info);
+ if (!osmo_log_info)
+ return -ENOMEM;
+
+ osmo_log_info->num_cat_user = inf->num_cat;
+ /* total number = number of user cat + library cat */
+ osmo_log_info->num_cat = inf->num_cat + ARRAY_SIZE(internal_cat);
+
+ osmo_log_info->cat = talloc_zero_array(osmo_log_info,
+ struct log_info_cat,
+ osmo_log_info->num_cat);
+ if (!osmo_log_info->cat) {
+ talloc_free(osmo_log_info);
+ osmo_log_info = NULL;
+ return -ENOMEM;
+ }
+
+ /* copy over the user part */
+ for (i = 0; i < inf->num_cat; i++) {
+ memcpy(&osmo_log_info->cat[i], &inf->cat[i],
+ sizeof(struct log_info_cat));
+ }
+
+ /* copy over the library part */
+ for (i = 0; i < ARRAY_SIZE(internal_cat); i++) {
+ unsigned int cn = osmo_log_info->num_cat_user + i;
+ memcpy(&osmo_log_info->cat[cn],
+ &internal_cat[i], sizeof(struct log_info_cat));
+ }
+
+ return 0;