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authorShawn Landden <shawn@churchofgit.com>2013-11-30 16:09:26 -0800
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-11-30 22:20:20 -0500
commite93c33d4aadb41427f215d43545e7fadc6bcec6f (patch)
tree6964e793e232cce6d03349d73a83fe23da45e252 /src/systemctl/systemctl.c
parentf74294c1dabb41faaaa0e03777f0dd33b979eed6 (diff)
systemctl: add "systemctl cat"
Diffstat (limited to 'src/systemctl/systemctl.c')
-rw-r--r--src/systemctl/systemctl.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index e10721362d..f7b2fb4019 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -3675,6 +3675,107 @@ static int show_all(
return 0;
}
+static int cat(sd_bus *bus, char **args) {
+ int r = 0;
+ char **name;
+
+ _cleanup_free_ char *unit = NULL, *n = NULL;
+
+ assert(bus);
+ assert(args);
+
+ pager_open_if_enabled();
+
+ STRV_FOREACH(name, args+1) {
+ _cleanup_free_ char *fragment_path = NULL;
+ _cleanup_strv_free_ char **dropin_paths = NULL;
+ sd_bus_error error;
+ FILE *stdout;
+ char **path;
+
+ n = unit_name_mangle(*name);
+ if (!n)
+ return log_oom();
+
+ unit = unit_dbus_path_from_name(n);
+ if (!unit)
+ return log_oom();
+
+ if (need_daemon_reload(bus, n) > 0)
+ log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.",
+ n, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
+
+ r = sd_bus_get_property_string(
+ bus,
+ "org.freedesktop.systemd1",
+ unit,
+ "org.freedesktop.systemd1.Unit",
+ "FragmentPath",
+ &error,
+ &fragment_path);
+ if (r < 0) {
+ log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r));
+ continue;
+ }
+
+ if (isempty(fragment_path)) {
+ free(fragment_path);
+ fragment_path = NULL;
+
+ if (sd_bus_get_property_string(
+ bus,
+ "org.freedesktop.systemd1",
+ unit,
+ "org.freedesktop.systemd1.Unit",
+ "SourcePath",
+ &error,
+ &fragment_path) < 0) {
+ log_warning("Failed to get SourcePath: %s", bus_error_message(&error, r));
+ continue;
+ }
+ }
+
+ r = sd_bus_get_property_strv(
+ bus,
+ "org.freedesktop.systemd1",
+ unit,
+ "org.freedesktop.systemd1.Unit",
+ "DropInPaths",
+ &error,
+ &dropin_paths);
+ if (r < 0) {
+ log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r));
+ continue;
+ }
+
+ stdout = fdopen(STDOUT_FILENO, "a");
+
+ if (!isempty(fragment_path)) {
+ fprintf(stdout, "# %s\n", fragment_path);
+ fflush(stdout);
+ r = sendfile_full(STDOUT_FILENO, fragment_path);
+ if (r < 0) {
+ log_warning("Failed to cat %s: %s", fragment_path, strerror(-r));
+ continue;
+ }
+ }
+
+ STRV_FOREACH(path, dropin_paths) {
+ fprintf(stdout, "%s# %s\n",
+ isempty(fragment_path) && path == dropin_paths ? "" : "\n",
+ *path);
+ fflush(stdout);
+ r = sendfile_full(STDOUT_FILENO, *path);
+ if (r < 0) {
+ log_warning("Failed to cat %s: %s", *path, strerror(-r));
+ continue;
+ }
+ }
+ }
+
+ return r;
+}
+
static int show(sd_bus *bus, char **args) {
int r, ret = 0;
bool show_properties, show_status, new_line = false;
@@ -4707,6 +4808,7 @@ static int systemctl_help(void) {
" status [NAME...|PID...] Show runtime status of one or more units\n"
" show [NAME...|JOB...] Show properties of one or more\n"
" units/jobs or the manager\n"
+ " cat [NAME...] Show files and drop-ins of one or more units\n"
" set-property [NAME] [ASSIGNMENT...]\n"
" Sets one or more properties of a unit\n"
" help [NAME...|PID...] Show manual for one or more units\n"
@@ -5690,6 +5792,7 @@ static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
{ "check", MORE, 2, check_unit_active },
{ "is-failed", MORE, 2, check_unit_failed },
{ "show", MORE, 1, show },
+ { "cat", MORE, 2, cat },
{ "status", MORE, 1, show },
{ "help", MORE, 2, show },
{ "snapshot", LESS, 2, snapshot },