+++ /dev/null
-/*
- * Common Trace Format
- *
- * Strings read/write functions.
- *
- * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
- *
- * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <babeltrace/babeltrace-internal.h>
-#include <babeltrace/ctf/types.h>
-#include <babeltrace/compat/limits.h> /* C99 limits */
-#include <babeltrace/compat/string.h>
-
-int ctf_string_read(struct bt_stream_pos *ppos, struct bt_definition *definition)
-{
- struct definition_string *string_definition =
- container_of(definition, struct definition_string, p);
- const struct declaration_string *string_declaration =
- string_definition->declaration;
- struct ctf_stream_pos *pos = ctf_pos(ppos);
- size_t len;
- ssize_t max_len_bits;
- char *srcaddr;
-
- if (!ctf_align_pos(pos, string_declaration->p.alignment))
- return -EFAULT;
-
- srcaddr = ctf_get_pos_addr(pos);
- if (pos->offset == EOF)
- return -EFAULT;
- /* Not counting \0. Counting in bits. */
- max_len_bits = pos->packet_size - pos->offset - CHAR_BIT;
- if (max_len_bits < 0)
- return -EFAULT;
- /* Add \0, counting in bytes. */
- len = bt_strnlen(srcaddr, (size_t) max_len_bits / CHAR_BIT) + 1;
- /* Truncated string, unexpected. Trace probably corrupted. */
- if (srcaddr[len - 1] != '\0')
- return -EFAULT;
-
- if (string_definition->alloc_len < len) {
- string_definition->value =
- g_realloc(string_definition->value, len);
- string_definition->alloc_len = len;
- }
- printf_debug("CTF string read %s\n", srcaddr);
- memcpy(string_definition->value, srcaddr, len);
- string_definition->len = len;
- if (!ctf_move_pos(pos, len * CHAR_BIT))
- return -EFAULT;
- return 0;
-}
-
-int ctf_string_write(struct bt_stream_pos *ppos,
- struct bt_definition *definition)
-{
- struct definition_string *string_definition =
- container_of(definition, struct definition_string, p);
- const struct declaration_string *string_declaration =
- string_definition->declaration;
- struct ctf_stream_pos *pos = ctf_pos(ppos);
- size_t len;
- char *destaddr;
-
- if (!ctf_align_pos(pos, string_declaration->p.alignment))
- return -EFAULT;
- assert(string_definition->value != NULL);
- len = string_definition->len;
-
- if (!ctf_pos_access_ok(pos, len))
- return -EFAULT;
-
- if (pos->dummy)
- goto end;
- destaddr = ctf_get_pos_addr(pos);
- memcpy(destaddr, string_definition->value, len);
-end:
- if (!ctf_move_pos(pos, len * CHAR_BIT))
- return -EFAULT;
- return 0;
-}