From 306d96a538d1c007e1f5a700ec7555ef76372306 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 8 Feb 2017 17:59:58 +0100 Subject: [PATCH] tree-wide: make bus_map_all_properties return a proper sd_bus_error And then show it, to make things a bit friendlier to the user if we fail acquiring some props. In fact, this fixes a number of actual bugs, where we used an error structure for output that we actually never got an error in. --- src/login/loginctl.c | 15 +++++++++------ src/shared/bus-util.c | 15 ++++++++------- src/shared/bus-util.h | 6 +++--- 3 files changed, 20 insertions(+), 16 deletions(-) diff --git a/src/login/loginctl.c b/src/login/loginctl.c index 56d711c8e..13d8f8074 100644 --- a/src/login/loginctl.c +++ b/src/login/loginctl.c @@ -499,14 +499,15 @@ static int print_session_status_info(sd_bus *bus, const char *path, bool *new_li {} }; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1; char since2[FORMAT_TIMESTAMP_MAX], *s2; _cleanup_(session_status_info_clear) SessionStatusInfo i = {}; int r; - r = bus_map_all_properties(bus, "org.freedesktop.login1", path, map, &i); + r = bus_map_all_properties(bus, "org.freedesktop.login1", path, map, &error, &i); if (r < 0) - return log_error_errno(r, "Could not get properties: %m"); + return log_error_errno(r, "Could not get properties: %s", bus_error_message(&error, r)); if (*new_line) printf("\n"); @@ -630,14 +631,15 @@ static int print_user_status_info(sd_bus *bus, const char *path, bool *new_line) {} }; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1; char since2[FORMAT_TIMESTAMP_MAX], *s2; _cleanup_(user_status_info_clear) UserStatusInfo i = {}; int r; - r = bus_map_all_properties(bus, "org.freedesktop.login1", path, map, &i); + r = bus_map_all_properties(bus, "org.freedesktop.login1", path, map, &error, &i); if (r < 0) - return log_error_errno(r, "Could not get properties: %m"); + return log_error_errno(r, "Could not get properties: %s", bus_error_message(&error, r)); if (*new_line) printf("\n"); @@ -706,12 +708,13 @@ static int print_seat_status_info(sd_bus *bus, const char *path, bool *new_line) {} }; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(seat_status_info_clear) SeatStatusInfo i = {}; int r; - r = bus_map_all_properties(bus, "org.freedesktop.login1", path, map, &i); + r = bus_map_all_properties(bus, "org.freedesktop.login1", path, map, &error, &i); if (r < 0) - return log_error_errno(r, "Could not get properties: %m"); + return log_error_errno(r, "Could not get properties: %s", bus_error_message(&error, r)); if (*new_line) printf("\n"); diff --git a/src/shared/bus-util.c b/src/shared/bus-util.c index 0b77d3f85..9efcc6b76 100644 --- a/src/shared/bus-util.c +++ b/src/shared/bus-util.c @@ -1119,9 +1119,9 @@ static int map_basic(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_ int bus_message_map_all_properties( sd_bus_message *m, const struct bus_properties_map *map, + sd_bus_error *error, void *userdata) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(m); @@ -1159,9 +1159,9 @@ int bus_message_map_all_properties( v = (uint8_t *)userdata + prop->offset; if (map[i].set) - r = prop->set(sd_bus_message_get_bus(m), member, m, &error, v); + r = prop->set(sd_bus_message_get_bus(m), member, m, error, v); else - r = map_basic(sd_bus_message_get_bus(m), member, m, &error, v); + r = map_basic(sd_bus_message_get_bus(m), member, m, error, v); if (r < 0) return r; @@ -1188,6 +1188,7 @@ int bus_message_map_all_properties( int bus_message_map_properties_changed( sd_bus_message *m, const struct bus_properties_map *map, + sd_bus_error *error, void *userdata) { const char *member; @@ -1196,7 +1197,7 @@ int bus_message_map_properties_changed( assert(m); assert(map); - r = bus_message_map_all_properties(m, map, userdata); + r = bus_message_map_all_properties(m, map, error, userdata); if (r < 0) return r; @@ -1227,10 +1228,10 @@ int bus_map_all_properties( const char *destination, const char *path, const struct bus_properties_map *map, + sd_bus_error *error, void *userdata) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); @@ -1244,13 +1245,13 @@ int bus_map_all_properties( path, "org.freedesktop.DBus.Properties", "GetAll", - &error, + error, &m, "s", ""); if (r < 0) return r; - return bus_message_map_all_properties(m, map, userdata); + return bus_message_map_all_properties(m, map, error, userdata); } int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **ret) { diff --git a/src/shared/bus-util.h b/src/shared/bus-util.h index 38732b631..3f12ae525 100644 --- a/src/shared/bus-util.h +++ b/src/shared/bus-util.h @@ -50,11 +50,11 @@ struct bus_properties_map { int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); -int bus_message_map_all_properties(sd_bus_message *m, const struct bus_properties_map *map, void *userdata); +int bus_message_map_all_properties(sd_bus_message *m, const struct bus_properties_map *map, sd_bus_error *error, void *userdata); #if 0 /// UNNEEDED by elogind -int bus_message_map_properties_changed(sd_bus_message *m, const struct bus_properties_map *map, void *userdata); +int bus_message_map_properties_changed(sd_bus_message *m, const struct bus_properties_map *map, sd_bus_error *error, void *userdata); #endif // 0 -int bus_map_all_properties(sd_bus *bus, const char *destination, const char *path, const struct bus_properties_map *map, void *userdata); +int bus_map_all_properties(sd_bus *bus, const char *destination, const char *path, const struct bus_properties_map *map, sd_bus_error *error, void *userdata); #if 0 /// UNNEEDED by elogind int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name); -- 2.30.2