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systemd/SOURCES/0083-httpd-use-a-cleanup-fu...

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From c9290315ce840ed1001b897220f3f733811ffc66 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Fri, 7 Dec 2018 12:13:10 +0100
Subject: [PATCH] =?UTF-8?q?=C2=B5httpd:=20use=20a=20cleanup=20function=20t?=
=?UTF-8?q?o=20call=20MHD=5Fdestroy=5Fresponse?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
(cherry-picked from commit d101fb24eb1c58c97f2adce1f69f4b61a788933a)
Related: #1664977
---
src/journal-remote/journal-gatewayd.c | 53 +++++++--------------------
src/journal-remote/microhttpd-util.c | 11 ++----
src/journal-remote/microhttpd-util.h | 2 +
3 files changed, 19 insertions(+), 47 deletions(-)
diff --git a/src/journal-remote/journal-gatewayd.c b/src/journal-remote/journal-gatewayd.c
index 9e77e314ff..3a167ab890 100644
--- a/src/journal-remote/journal-gatewayd.c
+++ b/src/journal-remote/journal-gatewayd.c
@@ -451,7 +451,7 @@ static int request_handler_entries(
struct MHD_Connection *connection,
void *connection_cls) {
- struct MHD_Response *response;
+ _cleanup_(MHD_destroy_responsep) struct MHD_Response *response = NULL;
RequestMeta *m = connection_cls;
int r;
@@ -493,11 +493,7 @@ static int request_handler_entries(
return respond_oom(connection);
MHD_add_response_header(response, "Content-Type", mime_types[m->mode]);
-
- r = MHD_queue_response(connection, MHD_HTTP_OK, response);
- MHD_destroy_response(response);
-
- return r;
+ return MHD_queue_response(connection, MHD_HTTP_OK, response);
}
static int output_field(FILE *f, OutputMode m, const char *d, size_t l) {
@@ -609,7 +605,7 @@ static int request_handler_fields(
const char *field,
void *connection_cls) {
- struct MHD_Response *response;
+ _cleanup_(MHD_destroy_responsep) struct MHD_Response *response = NULL;
RequestMeta *m = connection_cls;
int r;
@@ -632,11 +628,7 @@ static int request_handler_fields(
return respond_oom(connection);
MHD_add_response_header(response, "Content-Type", mime_types[m->mode == OUTPUT_JSON ? OUTPUT_JSON : OUTPUT_SHORT]);
-
- r = MHD_queue_response(connection, MHD_HTTP_OK, response);
- MHD_destroy_response(response);
-
- return r;
+ return MHD_queue_response(connection, MHD_HTTP_OK, response);
}
static int request_handler_redirect(
@@ -644,8 +636,7 @@ static int request_handler_redirect(
const char *target) {
char *page;
- struct MHD_Response *response;
- int ret;
+ _cleanup_(MHD_destroy_responsep) struct MHD_Response *response = NULL;
assert(connection);
assert(target);
@@ -661,11 +652,7 @@ static int request_handler_redirect(
MHD_add_response_header(response, "Content-Type", "text/html");
MHD_add_response_header(response, "Location", target);
-
- ret = MHD_queue_response(connection, MHD_HTTP_MOVED_PERMANENTLY, response);
- MHD_destroy_response(response);
-
- return ret;
+ return MHD_queue_response(connection, MHD_HTTP_MOVED_PERMANENTLY, response);
}
static int request_handler_file(
@@ -673,8 +660,7 @@ static int request_handler_file(
const char *path,
const char *mime_type) {
- struct MHD_Response *response;
- int ret;
+ _cleanup_(MHD_destroy_responsep) struct MHD_Response *response = NULL;
_cleanup_close_ int fd = -1;
struct stat st;
@@ -692,15 +678,10 @@ static int request_handler_file(
response = MHD_create_response_from_fd_at_offset64(st.st_size, fd, 0);
if (!response)
return respond_oom(connection);
-
- fd = -1;
+ TAKE_FD(fd);
MHD_add_response_header(response, "Content-Type", mime_type);
-
- ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
- MHD_destroy_response(response);
-
- return ret;
+ return MHD_queue_response(connection, MHD_HTTP_OK, response);
}
static int get_virtualization(char **v) {
@@ -737,14 +718,13 @@ static int request_handler_machine(
struct MHD_Connection *connection,
void *connection_cls) {
- struct MHD_Response *response;
+ _cleanup_(MHD_destroy_responsep) struct MHD_Response *response = NULL;
RequestMeta *m = connection_cls;
int r;
_cleanup_free_ char* hostname = NULL, *os_name = NULL;
uint64_t cutoff_from = 0, cutoff_to = 0, usage = 0;
- char *json;
sd_id128_t mid, bid;
- _cleanup_free_ char *v = NULL;
+ _cleanup_free_ char *v = NULL, *json = NULL;
assert(connection);
assert(m);
@@ -793,21 +773,16 @@ static int request_handler_machine(
usage,
cutoff_from,
cutoff_to);
-
if (r < 0)
return respond_oom(connection);
response = MHD_create_response_from_buffer(strlen(json), json, MHD_RESPMEM_MUST_FREE);
- if (!response) {
- free(json);
+ if (!response)
return respond_oom(connection);
- }
+ TAKE_PTR(json);
MHD_add_response_header(response, "Content-Type", "application/json");
- r = MHD_queue_response(connection, MHD_HTTP_OK, response);
- MHD_destroy_response(response);
-
- return r;
+ return MHD_queue_response(connection, MHD_HTTP_OK, response);
}
static int request_handler(
diff --git a/src/journal-remote/microhttpd-util.c b/src/journal-remote/microhttpd-util.c
index 34dd9ea555..2ae5172fe9 100644
--- a/src/journal-remote/microhttpd-util.c
+++ b/src/journal-remote/microhttpd-util.c
@@ -32,21 +32,16 @@ static int mhd_respond_internal(struct MHD_Connection *connection,
const char *buffer,
size_t size,
enum MHD_ResponseMemoryMode mode) {
- struct MHD_Response *response;
- int r;
-
assert(connection);
- response = MHD_create_response_from_buffer(size, (char*) buffer, mode);
+ _cleanup_(MHD_destroy_responsep) struct MHD_Response *response
+ = MHD_create_response_from_buffer(size, (char*) buffer, mode);
if (!response)
return MHD_NO;
log_debug("Queueing response %u: %s", code, buffer);
MHD_add_response_header(response, "Content-Type", "text/plain");
- r = MHD_queue_response(connection, code, response);
- MHD_destroy_response(response);
-
- return r;
+ return MHD_queue_response(connection, code, response);
}
int mhd_respond(struct MHD_Connection *connection,
diff --git a/src/journal-remote/microhttpd-util.h b/src/journal-remote/microhttpd-util.h
index a50a2a75c7..26909082a1 100644
--- a/src/journal-remote/microhttpd-util.h
+++ b/src/journal-remote/microhttpd-util.h
@@ -73,3 +73,5 @@ int check_permissions(struct MHD_Connection *connection, int *code, char **hostn
* interesting events without overwhelming detail.
*/
int setup_gnutls_logger(char **categories);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct MHD_Response*, MHD_destroy_response);
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