void
sr_ruby_frame_append_to_str(struct sr_ruby_frame *frame,
struct sr_strbuf *dest)
{
for (int i = 0; i < frame->rescue_level; i++)
{
sr_strbuf_append_str(dest, "rescue in ");
}
if (frame->block_level == 1)
{
sr_strbuf_append_str(dest, "block in ");
}
else if (frame->block_level > 1)
{
sr_strbuf_append_strf(dest, "block (%u levels) in ", (unsigned)frame->block_level);
}
sr_strbuf_append_strf(dest, "%s%s%s",
(frame->special_function ? "<" : ""),
(frame->function_name ? frame->function_name : "??"),
(frame->special_function ? ">" : ""));
if (frame->file_name)
{
sr_strbuf_append_strf(dest, " in %s", frame->file_name);
if (frame->file_line)
{
sr_strbuf_append_strf(dest, ":%"PRIu32, frame->file_line);
}
}
}
static void
core_append_bthash_text(struct sr_core_stacktrace *stacktrace, enum sr_bthash_flags flags,
struct sr_strbuf *strbuf)
{
sr_strbuf_append_strf(strbuf, "Executable: %s\n", OR_UNKNOWN(stacktrace->executable));
sr_strbuf_append_strf(strbuf, "Signal: %"PRIu16"\n", stacktrace->signal);
sr_strbuf_append_char(strbuf, '\n');
}
char *
sr_java_frame_to_json(struct sr_java_frame *frame)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
/* Name. */
if (frame->name)
{
sr_strbuf_append_str(strbuf, ", \"name\": ");
sr_json_append_escaped(strbuf, frame->name);
sr_strbuf_append_str(strbuf, "\n");
}
/* File name. */
if (frame->file_name)
{
sr_strbuf_append_str(strbuf, ", \"file_name\": ");
sr_json_append_escaped(strbuf, frame->file_name);
sr_strbuf_append_str(strbuf, "\n");
/* File line. */
sr_strbuf_append_strf(strbuf,
", \"file_line\": %"PRIu32"\n",
frame->file_line);
}
/* Class path. */
if (frame->class_path)
{
sr_strbuf_append_str(strbuf, ", \"class_path\": ");
sr_json_append_escaped(strbuf, frame->class_path);
sr_strbuf_append_str(strbuf, "\n");
}
/* Is native? */
sr_strbuf_append_strf(strbuf,
", \"is_native\": %s\n",
frame->is_native ? "true" : "false");
/* Is exception? */
sr_strbuf_append_strf(strbuf,
", \"is_exception\": %s\n",
frame->is_exception ? "true" : "false");
/* Message. */
if (frame->message)
{
sr_strbuf_append_str(strbuf, ", \"message\": ");
sr_json_append_escaped(strbuf, frame->message);
sr_strbuf_append_str(strbuf, "\n");
}
strbuf->buf[0] = '{';
sr_strbuf_append_str(strbuf, "}");
return sr_strbuf_free_nobuf(strbuf);
}
char *
sr_ruby_frame_to_json(struct sr_ruby_frame *frame)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
/* Source file name. */
if (frame->file_name)
{
sr_strbuf_append_str(strbuf, ", \"file_name\": ");
sr_json_append_escaped(strbuf, frame->file_name);
sr_strbuf_append_str(strbuf, "\n");
}
/* Source file line. */
if (frame->file_line)
{
sr_strbuf_append_strf(strbuf,
", \"file_line\": %"PRIu32"\n",
frame->file_line);
}
/* Function name / special function. */
if (frame->function_name)
{
if (frame->special_function)
sr_strbuf_append_str(strbuf, ", \"special_function\": ");
else
sr_strbuf_append_str(strbuf, ", \"function_name\": ");
sr_json_append_escaped(strbuf, frame->function_name);
sr_strbuf_append_str(strbuf, "\n");
}
/* Block level. */
if (frame->block_level > 0)
{
sr_strbuf_append_strf(strbuf,
", \"block_level\": %"PRIu32"\n",
frame->block_level);
}
/* Rescue level. */
if (frame->rescue_level > 0)
{
sr_strbuf_append_strf(strbuf,
", \"rescue_level\": %"PRIu32"\n",
frame->rescue_level);
}
strbuf->buf[0] = '{';
sr_strbuf_append_char(strbuf, '}');
return sr_strbuf_free_nobuf(strbuf);
}
static void
java_append_duphash_text(struct sr_java_frame *frame, enum sr_duphash_flags flags,
struct sr_strbuf *strbuf)
{
if (frame->name)
sr_strbuf_append_strf(strbuf, "%s\n", frame->name);
else
sr_strbuf_append_strf(strbuf, "%s/%s:%"PRIu32"\n",
OR_UNKNOWN(frame->class_path),
OR_UNKNOWN(frame->file_name),
frame->file_line);
}
static void
python_append_bthash_text(struct sr_python_stacktrace *stacktrace, enum sr_bthash_flags flags,
struct sr_strbuf *strbuf)
{
sr_strbuf_append_strf(strbuf, "Exception: %s\n", OR_UNKNOWN(stacktrace->exception_name));
sr_strbuf_append_char(strbuf, '\n');
}
static void
koops_append_bthash_text(struct sr_koops_stacktrace *stacktrace,
enum sr_bthash_flags flags, struct sr_strbuf *strbuf)
{
sr_strbuf_append_strf(strbuf, "Version: %s\n", OR_UNKNOWN(stacktrace->version));
sr_strbuf_append_str(strbuf, "Flags: ");
for (struct sr_taint_flag *f = sr_flags; f->letter; f++)
{
bool val = *(bool *)((void *)stacktrace + f->member_offset);
if (val == false)
continue;
}
sr_strbuf_append_char(strbuf, '\n');
sr_strbuf_append_str(strbuf, "Modules: ");
for (char **mod = stacktrace->modules; mod && *mod; mod++)
{
sr_strbuf_append_str(strbuf, *mod);
if (*(mod+1))
sr_strbuf_append_str(strbuf, ", ");
}
sr_strbuf_append_char(strbuf, '\n');
sr_strbuf_append_char(strbuf, '\n');
}
void
sr_java_frame_append_to_str(struct sr_java_frame *frame,
struct sr_strbuf *dest)
{
if (frame->is_exception)
{
if (frame->name)
sr_strbuf_append_str(dest, frame->name);
if (frame->message)
sr_strbuf_append_strf(dest, ": %s", frame->message);
}
else
{
sr_strbuf_append_strf(dest, "\tat %s(",
frame->name ? frame->name : "");
if (frame->is_native)
sr_strbuf_append_str(dest, SR_JF_MARK_NATIVE_METHOD);
else if (!frame->file_name)
sr_strbuf_append_str(dest, SR_JF_MARK_UNKNOWN_SOURCE);
else
sr_strbuf_append_str(dest, frame->file_name);
/* YES even if the frame is native method or source is unknown */
/* WHY? Because it was parsed in this form */
/* Ooops! Maybe the source file was empty string. Don't care! */
if (frame->file_line)
sr_strbuf_append_strf(dest, ":%"PRIu32, frame->file_line);
sr_strbuf_append_str(dest, ")");
if (!frame->class_path)
sr_strbuf_append_str(dest, " [unknown]");
else
{
sr_strbuf_append_str(dest, " [");
if (strchrnul(frame->class_path,':') > strchrnul(frame->class_path, '/'))
sr_strbuf_append_str(dest, "file:");
sr_strbuf_append_strf(dest, "%s]", frame->class_path);
}
}
}
char *
sr_elf_fde_to_json(struct sr_elf_fde *fde,
bool recursive)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
if (recursive)
{
struct sr_elf_fde *loop = fde;
while (loop)
{
if (loop == fde)
sr_strbuf_append_str(strbuf, "[ ");
else
sr_strbuf_append_str(strbuf, ", ");
char *fde_json = sr_elf_fde_to_json(loop, false);
char *indented_fde_json = sr_indent_except_first_line(fde_json, 2);
sr_strbuf_append_str(strbuf, indented_fde_json);
free(indented_fde_json);
free(fde_json);
loop = loop->next;
if (loop)
sr_strbuf_append_str(strbuf, "\n");
}
sr_strbuf_append_str(strbuf, " ]");
}
else
{
/* Start address. */
sr_strbuf_append_strf(strbuf,
"{ \"start_address\": %"PRIu64"\n",
fde->start_address);
/* Length. */
sr_strbuf_append_strf(strbuf,
", \"length\": %"PRIu64"\n",
fde->length);
sr_strbuf_append_str(strbuf, "}");
}
return sr_strbuf_free_nobuf(strbuf);
}
static void
ruby_append_duphash_text(struct sr_ruby_frame *frame, enum sr_duphash_flags flags,
struct sr_strbuf *strbuf)
{
/* filename:line */
sr_strbuf_append_strf(strbuf, "%s:%"PRIu32"\n",
OR_UNKNOWN(frame->file_name),
frame->file_line);
}
/* str */
PyObject *
sr_py_koops_frame_str(PyObject *self)
{
struct sr_py_koops_frame *this = (struct sr_py_koops_frame*)self;
struct sr_strbuf *buf = sr_strbuf_new();
if (this->frame->special_stack)
sr_strbuf_append_strf(buf, "[%s] ", this->frame->special_stack);
if (this->frame->address != 0)
sr_strbuf_append_strf(buf, "[0x%016"PRIx64"] ", this->frame->address);
if (!this->frame->reliable)
sr_strbuf_append_str(buf, "? ");
if (this->frame->function_name)
sr_strbuf_append_str(buf, this->frame->function_name);
if (this->frame->function_offset)
sr_strbuf_append_strf(buf, "+0x%"PRIx64, this->frame->function_offset);
if (this->frame->function_length)
sr_strbuf_append_strf(buf, "/0x%"PRIx64, this->frame->function_length);
if (this->frame->module_name)
sr_strbuf_append_strf(buf, " [%s]", this->frame->module_name);
if (this->frame->from_function_name || this->frame->from_address)
sr_strbuf_append_str(buf, " from ");
if (this->frame->from_address != 0)
sr_strbuf_append_strf(buf, "[0x%016"PRIx64"] ", this->frame->from_address);
if (this->frame->from_function_name)
sr_strbuf_append_str(buf, this->frame->from_function_name);
if (this->frame->from_function_offset)
sr_strbuf_append_strf(buf, "+0x%"PRIx64, this->frame->from_function_offset);
if (this->frame->from_function_length)
sr_strbuf_append_strf(buf, "/0x%"PRIx64, this->frame->from_function_length);
if (this->frame->from_module_name)
sr_strbuf_append_strf(buf, " [%s]", this->frame->from_module_name);
char *str = sr_strbuf_free_nobuf(buf);
PyObject *result = Py_BuildValue("s", str);
free(str);
return result;
}
/* str */
PyObject *
sr_py_java_frame_str(PyObject *self)
{
struct sr_py_java_frame *this = (struct sr_py_java_frame*)self;
struct sr_strbuf *buf = sr_strbuf_new();
if (this->frame->is_exception)
{
sr_strbuf_append_str(buf, this->frame->name);
if (this->frame->message)
sr_strbuf_append_strf(buf, ": %s", this->frame->message);
}
else
{
sr_strbuf_append_str(buf, "\t");
if (this->frame->name)
sr_strbuf_append_strf(buf, "at %s", this->frame->name);
if (this->frame->file_name)
sr_strbuf_append_strf(buf, "(%s", this->frame->file_name);
if (this->frame->file_line)
sr_strbuf_append_strf(buf, ":%d", this->frame->file_line);
if (this->frame->is_native)
sr_strbuf_append_str(buf, "(Native Method");
sr_strbuf_append_str(buf, ")");
}
/*
* not present (parsed) at the moment
if (this->frame->class_path)
sr_strbuf_append_strf(buf, "class_path:%s", this->frame->class_path);
*/
char *str = sr_strbuf_free_nobuf(buf);
PyObject *result = Py_BuildValue("s", str);
free(str);
return result;
}
PyObject *
sr_py_distances_str(PyObject *self)
{
struct sr_py_distances *this = (struct sr_py_distances *)self;
struct sr_strbuf *buf = sr_strbuf_new();
sr_strbuf_append_strf(buf, "%d-by-%d distance matrix",
this->distances->m, this->distances->n);
char *str = sr_strbuf_free_nobuf(buf);
PyObject *result = Py_BuildValue("s", str);
free(str);
return result;
}
PyObject *
sr_py_core_thread_str(PyObject *self)
{
struct sr_py_core_thread *this = (struct sr_py_core_thread *)self;
struct sr_strbuf *buf = sr_strbuf_new();
sr_strbuf_append_strf(buf, "Thread with %zd frames", (ssize_t)(PyList_Size(this->frames)));
char *str = sr_strbuf_free_nobuf(buf);
PyObject *result = Py_BuildValue("s", str);
free(str);
return result;
}
/* str */
PyObject *
sr_py_gdb_frame_str(PyObject *self)
{
struct sr_py_gdb_frame *this = (struct sr_py_gdb_frame*)self;
struct sr_strbuf *buf = sr_strbuf_new();
sr_strbuf_append_strf(buf, "Frame #%u: ", this->frame->number);
if (!this->frame->function_name)
sr_strbuf_append_str(buf, "signal handler");
else if (strncmp("??", this->frame->function_name, strlen("??")) == 0)
sr_strbuf_append_str(buf, "unknown function");
else
sr_strbuf_append_strf(buf, "function %s", this->frame->function_name);
if (this->frame->address != -1)
sr_strbuf_append_strf(buf, " @ 0x%016"PRIx64, this->frame->address);
if (this->frame->library_name)
sr_strbuf_append_strf(buf, " (%s)", this->frame->library_name);
char *str = sr_strbuf_free_nobuf(buf);
PyObject *result = Py_BuildValue("s", str);
free(str);
return result;
}
static void
python_append_bthash_text(struct sr_python_frame *frame, enum sr_bthash_flags flags,
struct sr_strbuf *strbuf)
{
sr_strbuf_append_strf(strbuf,
"%s, %d, %"PRIu32", %s, %d, %s\n",
OR_UNKNOWN(frame->file_name),
frame->special_file,
frame->file_line,
OR_UNKNOWN(frame->function_name),
frame->special_function,
OR_UNKNOWN(frame->line_contents));
}
static void
ruby_append_bthash_text(struct sr_ruby_frame *frame, enum sr_bthash_flags flags,
struct sr_strbuf *strbuf)
{
sr_strbuf_append_strf(strbuf,
"%s, %"PRIu32", %s, %d, %"PRIu32", %"PRIu32"\n",
OR_UNKNOWN(frame->file_name),
frame->file_line,
OR_UNKNOWN(frame->function_name),
frame->special_function,
frame->block_level,
frame->rescue_level);
}
static void
java_append_bthash_text(struct sr_java_frame *frame, enum sr_bthash_flags flags,
struct sr_strbuf *strbuf)
{
sr_strbuf_append_strf(strbuf,
"%s, %s, %"PRIu32", %s, %d, %d, %s\n",
OR_UNKNOWN(frame->name),
OR_UNKNOWN(frame->file_name),
frame->file_line,
OR_UNKNOWN(frame->class_path),
frame->is_native,
frame->is_exception,
OR_UNKNOWN(frame->message));
}
char *
sr_python_frame_to_json(struct sr_python_frame *frame)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
/* Source file name / special file. */
if (frame->file_name)
{
if (frame->special_file)
sr_strbuf_append_str(strbuf, ", \"special_file\": ");
else
sr_strbuf_append_str(strbuf, ", \"file_name\": ");
sr_json_append_escaped(strbuf, frame->file_name);
sr_strbuf_append_str(strbuf, "\n");
}
/* Source file line. */
if (frame->file_line)
{
sr_strbuf_append_strf(strbuf,
", \"file_line\": %"PRIu32"\n",
frame->file_line);
}
/* Function name / special function. */
if (frame->function_name)
{
if (frame->special_function)
sr_strbuf_append_str(strbuf, ", \"special_function\": ");
else
sr_strbuf_append_str(strbuf, ", \"function_name\": ");
sr_json_append_escaped(strbuf, frame->function_name);
sr_strbuf_append_str(strbuf, "\n");
}
/* Line contents. */
if (frame->line_contents)
{
sr_strbuf_append_str(strbuf, ", \"line_contents\": ");
sr_json_append_escaped(strbuf, frame->line_contents);
sr_strbuf_append_str(strbuf, "\n");
}
strbuf->buf[0] = '{';
sr_strbuf_append_char(strbuf, '}');
return sr_strbuf_free_nobuf(strbuf);
}
void
sr_python_frame_append_to_str(struct sr_python_frame *frame,
struct sr_strbuf *dest)
{
if (frame->file_name)
{
sr_strbuf_append_strf(dest, "[%s%s%s",
(frame->special_file ? "<" : ""),
frame->file_name,
(frame->special_file ? ">" : ""));
if (frame->file_line)
{
sr_strbuf_append_strf(dest, ":%"PRIu32, frame->file_line);
}
sr_strbuf_append_str(dest, "]");
}
sr_strbuf_append_strf(dest, " %s%s%s",
(frame->special_function ? "<" : ""),
(frame->function_name ? frame->function_name : "??"),
(frame->special_function ? ">" : ""));
}
char *
sr_core_stacktrace_to_json(struct sr_core_stacktrace *stacktrace)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
sr_strbuf_append_strf(strbuf,
"{ \"signal\": %"PRIu16"\n",
stacktrace->signal);
if (stacktrace->executable)
{
sr_strbuf_append_str(strbuf, ", \"executable\": ");
sr_json_append_escaped(strbuf, stacktrace->executable);
sr_strbuf_append_str(strbuf, "\n");
}
if (stacktrace->only_crash_thread)
sr_strbuf_append_str(strbuf, ", \"only_crash_thread\": true\n");
sr_strbuf_append_str(strbuf, ", \"stacktrace\":\n");
struct sr_core_thread *thread = stacktrace->threads;
while (thread)
{
if (thread == stacktrace->threads)
sr_strbuf_append_str(strbuf, " [ ");
else
sr_strbuf_append_str(strbuf, " , ");
bool crash_thread = (thread == stacktrace->crash_thread);
/* If we don't know the crash thread, just take the first one. */
crash_thread |= (stacktrace->crash_thread == NULL
&& thread == stacktrace->threads);
char *thread_json = sr_core_thread_to_json(thread, crash_thread);
char *indented_thread_json = sr_indent_except_first_line(thread_json, 8);
sr_strbuf_append_str(strbuf, indented_thread_json);
free(indented_thread_json);
free(thread_json);
thread = thread->next;
if (thread)
sr_strbuf_append_str(strbuf, "\n");
}
sr_strbuf_append_str(strbuf, " ]\n");
sr_strbuf_append_char(strbuf, '}');
return sr_strbuf_free_nobuf(strbuf);
}
char *
sr_disasm_binary_to_text(struct sr_disasm_state *state,
uint64_t start_offset,
uint64_t size,
char **error_message)
{
#if HAVE_LIBOPCODES
asection *section = state->info.section;
if (start_offset < section->vma
|| (start_offset + size) > section->vma + section->size)
{
*error_message = sr_asprintf(
"Invalid function range: 0x%"PRIx64" - 0x%"PRIx64,
start_offset,
start_offset + size);
return NULL;
}
char *code = sr_malloc(size);
bool success = bfd_get_section_contents(state->bfd_file,
state->info.section,
code,
start_offset - section->vma,
size);
if (!success)
{
*error_message = sr_strdup("Failed to get section contents.");
return NULL;
}
struct sr_strbuf *strbuf = sr_strbuf_new();
for (int i = 0; i < size; ++i)
{
sr_strbuf_append_strf(strbuf, "0x%02x ", (unsigned)code[i]);
if ((i + 1) % 12 == 0)
sr_strbuf_append_char(strbuf, '\n');
}
free(code);
return sr_strbuf_free_nobuf(strbuf);
#else // HAVE_LIBOPCODES
*error_message = sr_asprintf("satyr compiled without libopcodes");
return NULL;
#endif // HAVE_LIBOPCODES
}
static char *
taint_flags_to_json(struct sr_koops_stacktrace *stacktrace)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
struct sr_taint_flag *f;
for (f = sr_flags; f->letter; f++)
{
bool val = *(bool *)((void *)stacktrace + f->member_offset);
if (val == true)
{
sr_strbuf_append_strf(strbuf, ", \"%s\"\n", f->name);
}
}
if (strbuf->len == 0)
return sr_strdup("[]");
sr_strbuf_append_char(strbuf, ']');
char *result = sr_strbuf_free_nobuf(strbuf);
result[0] = '[';
result[strlen(result) - 2] = ' '; /* erase the last newline */
return result;
}
char *
sr_operating_system_to_json(struct sr_operating_system *operating_system)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
if (operating_system->name)
{
sr_strbuf_append_str(strbuf, ", \"name\": ");
sr_json_append_escaped(strbuf, operating_system->name);
sr_strbuf_append_str(strbuf, "\n");
}
if (operating_system->version)
{
sr_strbuf_append_str(strbuf, ", \"version\": ");
sr_json_append_escaped(strbuf, operating_system->version);
sr_strbuf_append_str(strbuf, "\n");
}
if (operating_system->architecture)
{
sr_strbuf_append_str(strbuf, ", \"architecture\": ");
sr_json_append_escaped(strbuf, operating_system->architecture);
sr_strbuf_append_str(strbuf, "\n");
}
if (operating_system->cpe)
{
sr_strbuf_append_str(strbuf, ", \"cpe\": ");
sr_json_append_escaped(strbuf, operating_system->cpe);
sr_strbuf_append_str(strbuf, "\n");
}
if (operating_system->desktop)
{
sr_strbuf_append_str(strbuf, ", \"desktop\": ");
sr_json_append_escaped(strbuf, operating_system->desktop);
sr_strbuf_append_str(strbuf, "\n");
}
if (operating_system->variant)
{
sr_strbuf_append_str(strbuf, ", \"variant\": ");
sr_json_append_escaped(strbuf, operating_system->variant);
sr_strbuf_append_str(strbuf, "\n");
}
if (operating_system->uptime > 0)
{
sr_strbuf_append_strf(strbuf,
", \"uptime\": %"PRIu64"\n",
operating_system->uptime);
}
if (strbuf->len > 0)
strbuf->buf[0] = '{';
else
sr_strbuf_append_char(strbuf, '{');
sr_strbuf_append_char(strbuf, '}');
return sr_strbuf_free_nobuf(strbuf);
}
char *
sr_koops_stacktrace_to_json(struct sr_koops_stacktrace *stacktrace)
{
struct sr_strbuf *strbuf = sr_strbuf_new();
/* Raw oops. */
if (stacktrace->raw_oops)
{
sr_strbuf_append_str(strbuf, ", \"raw_oops\": ");
sr_json_append_escaped(strbuf, stacktrace->raw_oops);
sr_strbuf_append_str(strbuf, "\n");
}
/* Kernel version. */
if (stacktrace->version)
{
sr_strbuf_append_str(strbuf, ", \"version\": ");
sr_json_append_escaped(strbuf, stacktrace->version);
sr_strbuf_append_str(strbuf, "\n");
}
/* Kernel taint flags. */
char *taint_flags = taint_flags_to_json(stacktrace);
char *indented_taint_flags = sr_indent_except_first_line(taint_flags, strlen(", \"taint_flags\": "));
free(taint_flags);
sr_strbuf_append_strf(strbuf, ", \"taint_flags\": %s\n", indented_taint_flags);
free(indented_taint_flags);
/* Modules. */
if (stacktrace->modules)
{
sr_strbuf_append_strf(strbuf, ", \"modules\":\n");
sr_strbuf_append_str(strbuf, " [ ");
char **module = stacktrace->modules;
while (*module)
{
if (module != stacktrace->modules)
sr_strbuf_append_str(strbuf, " , ");
sr_json_append_escaped(strbuf, *module);
++module;
if (*module)
sr_strbuf_append_str(strbuf, "\n");
}
sr_strbuf_append_str(strbuf, " ]\n");
}
/* Frames. */
if (stacktrace->frames)
{
struct sr_koops_frame *frame = stacktrace->frames;
sr_strbuf_append_str(strbuf, ", \"frames\":\n");
while (frame)
{
if (frame == stacktrace->frames)
sr_strbuf_append_str(strbuf, " [ ");
else
sr_strbuf_append_str(strbuf, " , ");
char *frame_json = sr_koops_frame_to_json(frame);
char *indented_frame_json = sr_indent_except_first_line(frame_json, 8);
sr_strbuf_append_str(strbuf, indented_frame_json);
free(indented_frame_json);
free(frame_json);
frame = frame->next;
if (frame)
sr_strbuf_append_str(strbuf, "\n");
}
sr_strbuf_append_str(strbuf, " ]\n");
}
if (strbuf->len > 0)
strbuf->buf[0] = '{';
else
sr_strbuf_append_char(strbuf, '{');
sr_strbuf_append_char(strbuf, '}');
return sr_strbuf_free_nobuf(strbuf);
}