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Ensure that response_read() always calls fflush() or fclose().
[rrdtool.git]
/
src
/
rrd_client.c
diff --git
a/src/rrd_client.c
b/src/rrd_client.c
index
043a144
..
21139f0
100644
(file)
--- a/
src/rrd_client.c
+++ b/
src/rrd_client.c
@@
-369,37
+369,36
@@
static void response_free (rrdc_response_t *res) /* {{{ */
static int response_read (rrdc_response_t **ret_response) /* {{{ */
{
static int response_read (rrdc_response_t **ret_response) /* {{{ */
{
- rrdc_response_t *ret;
+ rrdc_response_t *ret = NULL;
+ int status = 0;
char buffer[4096];
char *buffer_ptr;
size_t i;
char buffer[4096];
char *buffer_ptr;
size_t i;
+#define DIE(code) do { status = code; goto err_out; } while(0)
+
if (sh == NULL)
if (sh == NULL)
-
return
(-1);
+
DIE
(-1);
ret = (rrdc_response_t *) malloc (sizeof (rrdc_response_t));
if (ret == NULL)
ret = (rrdc_response_t *) malloc (sizeof (rrdc_response_t));
if (ret == NULL)
-
return
(-2);
+
DIE
(-2);
memset (ret, 0, sizeof (*ret));
ret->lines = NULL;
ret->lines_num = 0;
buffer_ptr = fgets (buffer, sizeof (buffer), sh);
memset (ret, 0, sizeof (*ret));
ret->lines = NULL;
ret->lines_num = 0;
buffer_ptr = fgets (buffer, sizeof (buffer), sh);
- if (buffer_ptr == NULL) {
- close_connection();
- return (-3);
- }
+ if (buffer_ptr == NULL)
+ DIE(-3);
+
chomp (buffer);
ret->status = strtol (buffer, &ret->message, 0);
if (buffer == ret->message)
chomp (buffer);
ret->status = strtol (buffer, &ret->message, 0);
if (buffer == ret->message)
- {
- response_free (ret);
- close_connection();
- return (-4);
- }
+ DIE(-4);
+
/* Skip leading whitespace of the status message */
ret->message += strspn (ret->message, " \t");
/* Skip leading whitespace of the status message */
ret->message += strspn (ret->message, " \t");
@@
-407,17
+406,13
@@
static int response_read (rrdc_response_t **ret_response) /* {{{ */
{
if (ret->status < 0)
rrd_set_error("rrdcached: %s", ret->message);
{
if (ret->status < 0)
rrd_set_error("rrdcached: %s", ret->message);
- *ret_response = ret;
- return (0);
+ goto out;
}
ret->lines = (char **) malloc (sizeof (char *) * ret->status);
if (ret->lines == NULL)
}
ret->lines = (char **) malloc (sizeof (char *) * ret->status);
if (ret->lines == NULL)
- {
- response_free (ret);
- close_connection();
- return (-5);
- }
+ DIE(-5);
+
memset (ret->lines, 0, sizeof (char *) * ret->status);
ret->lines_num = (size_t) ret->status;
memset (ret->lines, 0, sizeof (char *) * ret->status);
ret->lines_num = (size_t) ret->status;
@@
-425,24
+420,27
@@
static int response_read (rrdc_response_t **ret_response) /* {{{ */
{
buffer_ptr = fgets (buffer, sizeof (buffer), sh);
if (buffer_ptr == NULL)
{
buffer_ptr = fgets (buffer, sizeof (buffer), sh);
if (buffer_ptr == NULL)
- {
- response_free (ret);
- close_connection();
- return (-6);
- }
+ DIE(-6);
+
chomp (buffer);
ret->lines[i] = strdup (buffer);
if (ret->lines[i] == NULL)
chomp (buffer);
ret->lines[i] = strdup (buffer);
if (ret->lines[i] == NULL)
- {
- response_free (ret);
- close_connection();
- return (-7);
- }
+ DIE(-7);
}
}
+out:
*ret_response = ret;
*ret_response = ret;
- return (0);
+ fflush(sh);
+ return (status);
+
+err_out:
+ response_free(ret);
+ close_connection();
+ return (status);
+
+#undef DIE
+
} /* }}} rrdc_response_t *response_read */
static int request (const char *buffer, size_t buffer_size, /* {{{ */
} /* }}} rrdc_response_t *response_read */
static int request (const char *buffer, size_t buffer_size, /* {{{ */