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Add list-unit-files command to bluechictl
Fixes: eclipse-bluechi#889 Signed-off-by: tallison <[email protected]>
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tallison
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Jul 23, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,215 @@ | ||
| /* | ||
| * Copyright Contributors to the Eclipse BlueChi project | ||
| * | ||
| * SPDX-License-Identifier: LGPL-2.1-or-later | ||
| */ | ||
| #include <stdarg.h> | ||
| #include <stdio.h> | ||
| #include <string.h> | ||
|
|
||
| #include "client.h" | ||
| #include "method-list-unit-files.h" | ||
|
|
||
| #include "libbluechi/common/math-util.h" | ||
| #include "libbluechi/common/opt.h" | ||
| #include "libbluechi/common/string-util.h" | ||
|
|
||
| typedef void (*print_unit_file_list_fn)(UnitFileList *unit_file_list, const char *glob_filter); | ||
|
|
||
| struct UnitFileList { | ||
| int ref_count; | ||
|
|
||
| LIST_FIELDS(UnitFileList, node_units); | ||
|
|
||
| LIST_HEAD(UnitFileInfo, unit_files); | ||
| }; | ||
|
|
||
| UnitFileList *new_unit_file_list(); | ||
| void unit_file_list_unref(UnitFileList *unit_file_list); | ||
|
|
||
| DEFINE_CLEANUP_FUNC(UnitFileList, unit_file_list_unref) | ||
| #define _cleanup_unit_file_list_ _cleanup_(unit_file_list_unrefp) | ||
|
|
||
| static int fetch_unit_file_list(sd_bus *api_bus, | ||
| const char *node_name, | ||
| const char *object_path, | ||
| const char *interface, | ||
| const char *typestring, | ||
| int (*parse_unit_file_info)(sd_bus_message *, UnitFileInfo *), | ||
| UnitFileList *unit_file_list) { | ||
| int r = 0; | ||
| _cleanup_sd_bus_error_ sd_bus_error error = SD_BUS_ERROR_NULL; | ||
| _cleanup_sd_bus_message_ sd_bus_message *message = NULL; | ||
|
|
||
| r = sd_bus_call_method( | ||
| api_bus, | ||
| BC_INTERFACE_BASE_NAME, | ||
| object_path, interface, | ||
| "ListUnitFiles", | ||
| &error, | ||
| &message, | ||
| ""); | ||
| if (r < 0) { | ||
| fprintf(stderr, "Failed to issue method call: %s\n", error.message); | ||
| return r; | ||
| } | ||
|
|
||
| r = sd_bus_message_enter_container(message, SD_BUS_TYPE_ARRAY, typestring); | ||
| if (r < 0) { | ||
| fprintf(stderr, "Failed to read sd-bus message: %s\n", strerror(-r)); | ||
| return r; | ||
| } | ||
|
|
||
| for (;;) { | ||
| _cleanup_unit_file_ UnitFileInfo *info = new_unit_file(); | ||
|
|
||
| r = (*parse_unit_file_info)(message, info); | ||
| if (r < 0) { | ||
| fprintf(stderr, "Failed to parse unit file info: %s\n", strerror(-r)); | ||
| return r; | ||
| } | ||
| if (r == 0) { | ||
| break; | ||
| } | ||
| if (node_name != NULL) { | ||
| info->node = strdup(node_name); | ||
| } | ||
|
|
||
| LIST_APPEND(unit_files, unit_file_list->unit_files, unit_file_ref(info)); | ||
| } | ||
|
|
||
| return r; | ||
| } | ||
|
|
||
| static int method_list_unit_files_on_all(sd_bus *api_bus, print_unit_file_list_fn print, const char *glob_filter) { | ||
| _cleanup_unit_file_list_ UnitFileList *unit_file_list = new_unit_file_list(); | ||
|
|
||
| int r = fetch_unit_file_list( | ||
| api_bus, | ||
| NULL, | ||
| BC_OBJECT_PATH, | ||
| CONTROLLER_INTERFACE, | ||
| "(sss)", | ||
| &bus_parse_unit_file_on_node_info, | ||
| unit_file_list); | ||
| if (r < 0) { | ||
| return r; | ||
| } | ||
|
|
||
| print(unit_file_list, glob_filter); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int method_list_unit_files_on( | ||
| sd_bus *api_bus, const char *node_name, print_unit_file_list_fn print, const char *glob_filter) { | ||
| int r = 0; | ||
| _cleanup_unit_file_list_ UnitFileList *unit_file_list = new_unit_file_list(); | ||
|
|
||
| _cleanup_free_ char *object_path = NULL; | ||
| r = assemble_object_path_string(NODE_OBJECT_PATH_PREFIX, node_name, &object_path); | ||
| if (r < 0) { | ||
| return r; | ||
| } | ||
|
|
||
| r = fetch_unit_file_list( | ||
| api_bus, | ||
| node_name, | ||
| object_path, | ||
| NODE_INTERFACE, | ||
| "(ss)", | ||
| &bus_parse_unit_file_info, | ||
| unit_file_list); | ||
| if (r < 0) { | ||
| return r; | ||
| } | ||
|
|
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| print(unit_file_list, glob_filter); | ||
|
|
||
| return 0; | ||
| } | ||
|
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||
|
|
||
| /**************************** | ||
| ******** UnitFileList ****** | ||
| ****************************/ | ||
|
|
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| UnitFileList *new_unit_file_list() { | ||
| _cleanup_unit_file_list_ UnitFileList *unit_file_list = malloc0(sizeof(UnitFileList)); | ||
|
|
||
| if (unit_file_list == NULL) { | ||
| return NULL; | ||
| } | ||
|
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| unit_file_list->ref_count = 1; | ||
| LIST_HEAD_INIT(unit_file_list->unit_files); | ||
|
|
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| return steal_pointer(&unit_file_list); | ||
| } | ||
|
|
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| void unit_file_list_unref(UnitFileList *unit_file_list) { | ||
| unit_file_list->ref_count--; | ||
| if (unit_file_list->ref_count != 0) { | ||
| return; | ||
| } | ||
|
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| UnitFileInfo *unit_file = NULL, *next_unit_file = NULL; | ||
| LIST_FOREACH_SAFE(unit_files, unit_file, next_unit_file, unit_file_list->unit_files) { | ||
| unit_file_unref(unit_file); | ||
| } | ||
| free(unit_file_list); | ||
| } | ||
|
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| void print_unit_file_list_simple(UnitFileList *unit_file_list, const char *glob_filter) { | ||
| UnitFileInfo *unit_file = NULL; | ||
| const unsigned int FMT_STR_MAX_LEN = 255; | ||
| char fmt_str[FMT_STR_MAX_LEN]; | ||
| const char node_title[] = "NODE"; | ||
| const char path_title[] = "PATH"; | ||
| const char enablment_title[] = "IS-ENABLED"; | ||
| const char col_sep[] = " | "; | ||
|
|
||
| unsigned long max_node_len = strlen(node_title); | ||
| unsigned long max_path_len = strlen(path_title); | ||
| unsigned long max_enablement_len = strlen(enablment_title); | ||
| unsigned long sep_len = strlen(col_sep); | ||
|
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| LIST_FOREACH(unit_files, unit_file, unit_file_list->unit_files) { | ||
| max_node_len = umaxl(max_node_len, strlen(unit_file->node)); | ||
| max_path_len = umaxl(max_path_len, strlen(unit_file->unit_path)); | ||
| max_enablement_len = umaxl(max_enablement_len, strlen(unit_file->enablement_status)); | ||
| } | ||
|
|
||
| unsigned long max_line_len = max_node_len + sep_len + max_path_len + sep_len + max_enablement_len; | ||
| char sep_line[max_line_len + 1]; | ||
|
|
||
| snprintf(fmt_str, | ||
| FMT_STR_MAX_LEN, | ||
| "%%-%lus%s%%-%lus%s%%-%lus\n", | ||
| max_node_len, | ||
| col_sep, | ||
| max_path_len, | ||
| col_sep, | ||
| max_enablement_len); | ||
|
|
||
| printf(fmt_str, "NODE", "PATH", "IS-ENABLED"); | ||
| memset(&sep_line, '=', sizeof(char) * max_line_len); | ||
| sep_line[max_line_len] = '\0'; | ||
| printf("%s\n", sep_line); | ||
|
|
||
| LIST_FOREACH(unit_files, unit_file, unit_file_list->unit_files) { | ||
| if (glob_filter == NULL /*|| match_glob(unit_file->)*/) { | ||
| printf(fmt_str, unit_file->node, unit_file->unit_path, unit_file->enablement_status); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| int method_list_unit_files(Command *command, void *userdata) { | ||
| Client *client = (Client *) userdata; | ||
| char *filter_glob = command_get_option(command, ARG_FILTER_SHORT); | ||
| if (command->opargc == 0) { | ||
| return method_list_unit_files_on_all(client->api_bus, print_unit_file_list_simple, filter_glob); | ||
| } | ||
| return method_list_unit_files_on( | ||
| client->api_bus, command->opargv[0], print_unit_file_list_simple, filter_glob); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| /* | ||
| * Copyright Contributors to the Eclipse BlueChi project | ||
| * | ||
| * SPDX-License-Identifier: LGPL-2.1-or-later | ||
| */ | ||
| #include "libbluechi/cli/command.h" | ||
|
|
||
| int method_list_unit_files(Command *command, void *userdata); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -7,3 +7,4 @@ | |
|
|
||
| typedef struct Client Client; | ||
| typedef struct UnitList UnitList; | ||
| typedef struct UnitFileList UnitFileList; | ||
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