[systemd-devel] [PATCH] libsystemd-bus: Clean up code

[Lukasz Skalski]

---
 src/libsystemd-bus/bus-dump.c      |  2 +-
 src/libsystemd-bus/bus-error.c     |  3 +--
 src/libsystemd-bus/bus-kernel.c    | 12 +++---------
 src/libsystemd-bus/bus-message.c   | 12 +++---------
 src/libsystemd-bus/bus-signature.c | 13 ++++---------
 5 files changed, 12 insertions(+), 30 deletions(-)

diff --git a/src/libsystemd-bus/bus-dump.c b/src/libsystemd-bus/bus-dump.c
index ddad418..a999683 100644
--- a/src/libsystemd-bus/bus-dump.c
+++ b/src/libsystemd-bus/bus-dump.c
@@ -56,7 +56,7 @@ int bus_message_dump(sd_bus_message *m, FILE *f, bool with_header) {
 
         if (with_header) {
                 fprintf(f,
-                        "%s%s%sType=%s%s%s  Endian=%c  Flags=%u  Version=%u",
+                        "%s%s%sType=%s%s%s  Endian=%c  Flags=%u  Version=%u ",
                         m->header->type == SD_BUS_MESSAGE_METHOD_ERROR ? ansi_highlight_red() :
                         m->header->type == SD_BUS_MESSAGE_METHOD_RETURN ? ansi_highlight_green() :
                         m->header->type != SD_BUS_MESSAGE_SIGNAL ? ansi_highlight() : "", draw_special_char(DRAW_TRIANGULAR_BULLET), ansi_highlight_off(),
diff --git a/src/libsystemd-bus/bus-error.c b/src/libsystemd-bus/bus-error.c
index 25eaf0e..4f18629 100644
--- a/src/libsystemd-bus/bus-error.c
+++ b/src/libsystemd-bus/bus-error.c
@@ -39,8 +39,7 @@ static int bus_error_name_to_errno(const char *name) {
         const char *p;
         int r;
 
-        if (!name)
-                return EINVAL;
+        assert_return(name, EINVAL);
 
         p = startswith(name, "System.Error.");
         if (p) {
diff --git a/src/libsystemd-bus/bus-kernel.c b/src/libsystemd-bus/bus-kernel.c
index 495d7e5..d5574ce 100644
--- a/src/libsystemd-bus/bus-kernel.c
+++ b/src/libsystemd-bus/bus-kernel.c
@@ -321,9 +321,7 @@ int bus_kernel_take_fd(sd_bus *b) {
         int r;
 
         assert(b);
-
-        if (b->is_server)
-                return -EINVAL;
+        assert_return(!b->is_server, -EINVAL);
 
         b->use_memfd = 1;
 
@@ -374,9 +372,7 @@ int bus_kernel_connect(sd_bus *b) {
         assert(b->input_fd < 0);
         assert(b->output_fd < 0);
         assert(b->kernel);
-
-        if (b->is_server)
-                return -EINVAL;
+        assert_return(!b->is_server, -EINVAL);
 
         b->input_fd = open(b->kernel, O_RDWR|O_NOCTTY|O_CLOEXEC);
         if (b->input_fd < 0)
@@ -904,9 +900,7 @@ int bus_kernel_pop_memfd(sd_bus *bus, void **address, size_t *size) {
 
         assert(address);
         assert(size);
-
-        if (!bus || !bus->is_kernel)
-                return -ENOTSUP;
+        assert_return(bus || bus->is_kernel, -ENOTSUP);
 
         assert_se(pthread_mutex_lock(&bus->memfd_cache_mutex) >= 0);
 
diff --git a/src/libsystemd-bus/bus-message.c b/src/libsystemd-bus/bus-message.c
index 4c0e27f..041dfba 100644
--- a/src/libsystemd-bus/bus-message.c
+++ b/src/libsystemd-bus/bus-message.c
@@ -158,9 +158,7 @@ static void *message_extend_fields(sd_bus_message *m, size_t align, size_t sz, b
         size_t old_size, new_size, start;
 
         assert(m);
-
-        if (m->poisoned)
-                return NULL;
+        assert_return(!m->poisoned, NULL);
 
         old_size = sizeof(struct bus_header) + m->header->fields_size;
         start = ALIGN_TO(old_size, align);
@@ -985,9 +983,7 @@ struct bus_body_part *message_append_part(sd_bus_message *m) {
         struct bus_body_part *part;
 
         assert(m);
-
-        if (m->poisoned)
-                return NULL;
+        assert_return(!m->poisoned, NULL);
 
         if (m->n_body_parts <= 0) {
                 part = &m->body;
@@ -1136,9 +1132,7 @@ static void *message_extend_body(sd_bus_message *m, size_t align, size_t sz, boo
         assert(m);
         assert(align > 0);
         assert(!m->sealed);
-
-        if (m->poisoned)
-                return NULL;
+        assert_return(!m->poisoned, NULL);
 
         start_body = ALIGN_TO((size_t) m->header->body_size, align);
         end_body = start_body + sz;
diff --git a/src/libsystemd-bus/bus-signature.c b/src/libsystemd-bus/bus-signature.c
index 1e5bf48..3fb0794 100644
--- a/src/libsystemd-bus/bus-signature.c
+++ b/src/libsystemd-bus/bus-signature.c
@@ -33,9 +33,7 @@ static int signature_element_length_internal(
 
         int r;
 
-        if (!s)
-                return -EINVAL;
-
+        assert_return(s, -EINVAL);
         assert(l);
 
         if (bus_type_is_basic(*s) || *s == SD_BUS_TYPE_VARIANT) {
@@ -117,8 +115,7 @@ bool signature_is_single(const char *s, bool allow_dict_entry) {
         int r;
         size_t t;
 
-        if (!s)
-                return false;
+        assert_return(s, false);
 
         r = signature_element_length_internal(s, allow_dict_entry, 0, 0, &t);
         if (r < 0)
@@ -129,8 +126,7 @@ bool signature_is_single(const char *s, bool allow_dict_entry) {
 
 bool signature_is_pair(const char *s) {
 
-        if (!s)
-                return false;
+        assert_return(s, false);
 
         if (!bus_type_is_basic(*s))
                 return false;
@@ -142,8 +138,7 @@ bool signature_is_valid(const char *s, bool allow_dict_entry) {
         const char *p;
         int r;
 
-        if (!s)
-                return false;
+        assert_return(s, false);
 
         p = s;
         while (*p) {
-- 
1.8.3.2